Commercial window cleaning interview questions

108 interview questions for the 18 roles a $20M business in this industry hires for, from leadership to the field. Each role has job-related questions, what strong and weak answers sound like, and a short work exercise.

18 roles. Open one to see its questions, or open them all.

Chief Executive Officer

6 questions · Present a strategy
Job description
  1. Building owners keep asking whether you can also do facade cleaning and caulking at height. How would you decide whether to offer it?

    Situational · New service lines

    Strong answer
    Weighs the rope access training and certification needed, insurance, equipment, margins and demand, and starts small with experienced people rather than stretching current crews.
    Red flags
    Says yes because the crews are already on ropes.
  2. A big building owner wants rope work done but won't pay to get the roof anchors inspected and certified. What do you do?

    Situational · Saying no to unsafe work

    Strong answer
    Declines rope work on uncertified anchors, explains the safety and legal requirement, and offers other access methods such as lifts where they work.
    Red flags
    Does the job anyway to keep the account.
  3. Tell me about the most serious incident you've led a company through, such as a fall, a dropped object or losing a major client. What did you do first?

    Behavioral · Leading through a crisis

    Strong answer
    Got care for anyone hurt and secured the site, made the required reports, told staff and clients the facts, found the root cause and made changes that lasted.
    Red flags
    Focused on protecting the company's image.
  4. Tell me about a large building or property-management contract you won. What made the difference?

    Behavioral · Big account wins

    Strong answer
    Names the client and scope, the problem they solved (safety record, reliable schedule, fewer tenant complaints), how they priced it to make money, and how delivery went.
    Red flags
    Won it on price alone.
  5. What terms in a high-rise window cleaning contract would make you walk away?

    Technical · Contract risk

    Strong answer
    Indemnity that covers the owner's own negligence, no access to anchor records, schedules that ignore weather, unrealistic insurance demands, or payment terms that sink cash flow.
    Red flags
    Signs whatever the property manager sends.
  6. Your insurer wants to raise premiums sharply because of your high-rise work. How do you respond?

    Situational · Insurance strategy

    Strong answer
    Shows the safety program, training and loss history, works with a broker who knows the industry, weighs deductibles, and looks at which work is worth the risk.
    Red flags
    Accepts the increase, or drops coverage limits.

Work exercise: Present a strategy

Send finalists a made-up snapshot: revenue by service (storefront routes, low-rise, high-rise, post-construction), margins, crew certifications and insurance costs. Give them [45] minutes to prepare and [10] minutes to present where they'd grow, what they'd cut, and the biggest risk.

Chief Operating Officer

6 questions · Review a safety program
Job description
  1. What would your company's fall protection program include?

    Technical · Fall protection program

    Strong answer
    Written procedures for each access method, training and competency checks, gear inspection and retirement, anchor verification, rescue plans, site-specific plans, audits and stop-work authority for everyone.
    Red flags
    A harness for every tech and a yearly safety meeting.
  2. You're opening a branch in a new city with three high-rise contracts already signed. What has to be ready before the first drop?

    Situational · Expanding to a new city

    Strong answer
    A qualified lead and trained crew, verified anchors and building paperwork, equipment and storage, rescue plans and local supervision.
    Red flags
    Sends a crew from headquarters and figures out the rest there.
  3. Your crews report almost no near misses. What does that tell you, and what do you do?

    Situational · Near-miss reporting

    Strong answer
    Suspects underreporting, makes reporting easy and blame-free, leaders share their own near misses, and acts visibly on what's reported.
    Red flags
    Takes it as proof the crews are safe.
  4. Tell me about a time you cut costs in field operations without raising risk.

    Behavioral · Operational improvement

    Strong answer
    Names the change (denser storefront routes, fewer lift rental days through better sequencing, less weather standby), the savings, and how they checked that incidents and gear inspections held steady.
    Red flags
    Cut training or equipment budgets.
  5. Tell me about a technician you developed into a crew lead for rope or lift work. What did you do?

    Behavioral · Developing field leaders

    Strong answer
    Gave responsibility in steps (gear checks, rigging under supervision, then running drops), coached on client contact and paperwork, set clear sign-off points, and the lead now runs crews safely.
    Red flags
    Promoted the best tech and left them to it.
  6. A property manager wants all high-rise work done on weekends to avoid tenants. How do you respond?

    Situational · Client demands

    Strong answer
    Checks crew capacity, overtime cost and weather backup days, prices weekend work accordingly, and agrees on what happens when a weekend is lost to wind.
    Red flags
    Agrees without changing price or plans.

Work exercise: Review a safety program

Give finalists a made-up two-page fall protection program with gaps (no rescue plan, no gear retirement rule, no anchor documentation step). In [30] minutes, ask them to find the gaps, rank them and say how they'd roll out fixes.

Chief Financial Officer

6 questions · Bid post-mortem
Job description
  1. How would you track the true cost of a high-rise job?

    Technical · Job costing high-rise work

    Strong answer
    Crew hours including rigging and weather standby, lift or swing stage rentals, gear wear, permits, supervision and insurance cost by job type, compared with the bid.
    Red flags
    Counts crew wages only.
  2. Wind delays push high-rise revenue into next month, but crew costs keep coming. How do you plan for it?

    Situational · Weather timing

    Strong answer
    Builds weather days into bids and cash forecasts, keeps storefront routes as steady base revenue, and sets terms for progress billing on long jobs.
    Red flags
    Treats each delay as a surprise.
  3. Operations wants to buy a boom lift instead of renting. How do you decide?

    Situational · Rent or buy

    Strong answer
    Compares rental spend and days used, purchase and financing cost, maintenance, inspections, transport, insurance and resale value.
    Red flags
    Decides on the price tag.
  4. How would you budget for replacing ropes, harnesses and descent devices that must be retired on schedule or after damage?

    Technical · Budgeting for gear retirement

    Strong answer
    Builds a replacement schedule from the gear log and makers' retirement rules, sets money aside monthly, keeps a cushion for gear pulled after a fall or damage, and never lets cash timing delay retiring gear.
    Red flags
    Replaces gear only when cash allows.
  5. Tell me about a time you changed how a company priced its work based on your analysis.

    Behavioral · Finance leadership

    Strong answer
    Names the analysis (job cost versus bid by building type, rigging and standby time), how they got sales and operations to agree, and the margin change on later jobs.
    Red flags
    Analysis that no one used.
  6. Tell me about a time you improved how fast a company collected its money.

    Behavioral · Cash discipline

    Strong answer
    Names specific changes, such as invoicing the day work is done, meeting each portal's rules and calling before due dates, and the improvement in days to collect.
    Red flags
    Sent more reminders.

Work exercise: Bid post-mortem

Give finalists a made-up high-rise bid and the actual costs: crew hours, three weather days, a swing stage rental and extra rigging time. In [30] minutes, ask them to find where the job lost money and recommend changes to future bids.

General Manager

6 questions · Estimate a building
Job description
  1. A property management firm offers a multi-year contract for twelve buildings at a tight price. How do you decide?

    Situational · Portfolio contracts

    Strong answer
    Reviews each building's access, anchors and true cost, payment terms and price escalators, and counters or walks away from buildings that lose money.
    Red flags
    Takes it for the volume.
  2. How do you estimate a high-rise window cleaning job?

    Technical · Estimating high-rise jobs

    Strong answer
    Counts drops and glass area, picks the access method, adds rigging time, crew size, weather days, permits and ground protection, then checks against past jobs.
    Red flags
    Prices by number of floors.
  3. A tool fell from a drop and landed inside the barricaded zone. No one was hurt. What do you do?

    Situational · Incident response

    Strong answer
    Treats it as a serious near miss, stops and reviews, checks tool tethering and zone size, retrains, and shares the lesson with all crews.
    Red flags
    Relieved no one was hurt and moves on.
  4. Tell me about a time you had to hire people for work at height or another hard-to-find skill. What did you do?

    Behavioral · Hiring scarce skills

    Strong answer
    Built a pipeline through referrals, trade groups or training, developed people from within, adjusted pay or schedules, and filled roles without lowering safety standards.
    Red flags
    Waited for applicants, or lowered the bar.
  5. Tell me about a time you saved an important building or property management client.

    Behavioral · Client relationships

    Strong answer
    Explains what went wrong, how they owned it with the client, the fix they delivered, and that the client stayed or renewed.
    Red flags
    Gave a discount and hoped.
  6. Half your high-rise schedule slipped because of a windy month. What do you do?

    Situational · Schedule management

    Strong answer
    Re-sequences jobs by contract terms and client needs, tells clients the plan, adds weekend capacity where safe, and builds more weather days into future schedules.
    Red flags
    Pushes crews to work in marginal wind.

Work exercise: Estimate a building

Give finalists a made-up building: elevation drawings, roof plan with anchors, a busy sidewalk, and storefronts at ground level. In [30] minutes, ask them to choose access methods, estimate crew days and list the risks they'd price in.

Field Supervisor

6 questions · Write a site rescue plan
Job description
  1. What's your rescue plan if a worker is left hanging in their harness after a fall?

    Technical · Rescue planning

    Strong answer
    A written plan for each site before work starts, trained people and rescue gear on hand, quick action because hanging in a harness can quickly become life-threatening, and calling emergency services without relying on them alone.
    Red flags
    Call 911 and wait.
  2. A new technician's lift training record is missing, and the job starts tomorrow. What do you do?

    Situational · Verifying qualifications

    Strong answer
    Doesn't let them run the lift until training is confirmed or completed, reassigns them to ground work, and gets the record fixed.
    Red flags
    Lets them run it because they say they're trained.
  3. Before a post-construction clean, you notice scratches on some of the glass. What do you do?

    Situational · Pre-existing damage

    Strong answer
    Documents with photos and locations, tells the general contractor before starting, and adjusts methods so the crew doesn't add damage.
    Red flags
    Starts cleaning and deals with it if someone complains.
  4. A property manager says the lobby glass had streaks after your crew's visit. What do you do?

    Situational · Correcting quality

    Strong answer
    Looks at it in person, has it re-cleaned, finds the cause with the crew, and follows up with the client.
    Red flags
    Says the lobby lighting makes it look worse.
  5. Tell me about a time you found a crew member skipping a safety step, such as a gear check or a backup line. How did you handle it?

    Behavioral · Enforcing safety rules

    Strong answer
    Stopped the work right away, had it fixed before anyone continued, talked privately about why it mattered, documented it, checked later jobs, and held everyone to the same standard.
    Red flags
    Let it go because the job was nearly done.
  6. Tell me about a time you trained a crew on a new safety procedure.

    Behavioral · Training crews

    Strong answer
    Explained why, demonstrated, had them practice, and checked in the field.
    Red flags
    Handed out the procedure.

Work exercise: Write a site rescue plan

Give finalists a made-up building: eight stories, roof anchors, a public sidewalk below and a two-person rope crew. In [20] minutes, ask them to write a one-page rescue plan and a ground protection plan.

HR Manager

6 questions · Build a training matrix
Job description
  1. A candidate says they hold a rope access certification. How do you verify it?

    Technical · Verifying certifications

    Strong answer
    Checks the card and level, verifies with the certifying body, reviews their logbook hours, and has a lead confirm skills before they work at height.
    Red flags
    Takes their word for it.
  2. Many new hires quit in the first week once they see the height work. What do you change?

    Situational · Recruiting for height work

    Strong answer
    Shows real work in the job ad and interview, lets finalists watch a crew from the ground before an offer, and builds up height work step by step in training.
    Red flags
    Hires more people to make up for it.
  3. A client asks for proof that every tech on their building is trained for rope descent and lift work. What do you provide?

    Situational · Training records

    Strong answer
    Training records with dates and trainers for each named tech, lift operator records and any certifications, sent quickly and accurately.
    Red flags
    A letter saying everyone is trained.
  4. Tell me about a safety-related complaint you investigated. What did you find and do?

    Behavioral · Investigations

    Strong answer
    Interviewed people separately, checked records such as gear logs and training, protected the person who raised it from retaliation, and saw a fix put in place.
    Red flags
    Left it to operations.
  5. Tell me about a time you kept skilled field workers from leaving for a competitor.

    Behavioral · Retention

    Strong answer
    Found the real reasons through stay or exit conversations (pay, schedules, gear, how leads treat people), made specific changes, and can show turnover dropped.
    Red flags
    Matched offers one at a time.
  6. A technician reports that their lead skips the daily gear inspection. What do you do?

    Situational · Accountability for skipped checks

    Strong answer
    Thanks them, protects them from retaliation, works with operations to verify and correct it, and documents.
    Red flags
    Tells the lead who reported it.

Work exercise: Build a training matrix

Give finalists a made-up roster of ten techs with rope access levels and fall protection and lift training dates, some expired. In [20] minutes, ask them to build a training matrix, flag who can't work which jobs, and plan renewals.

Marketing Manager

6 questions · Plan a commercial campaign
Job description
  1. How would you get in front of property managers and facility directors in a new market?

    Situational · Reaching property managers

    Strong answer
    Joins local building owner and property manager groups, uses targeted lists and LinkedIn, offers useful content like safety checklists, and tracks meetings booked.
    Red flags
    Runs homeowner-style ads and waits.
  2. How would you track which marketing brings in commercial contracts?

    Technical · Lead tracking

    Strong answer
    Records the source on every lead, tracks walkthroughs, proposals and contracts in the CRM, and reports revenue by source.
    Red flags
    Counts website visits and form fills only.
  3. Sales wants to advertise a perfect safety record. What do you check before using that claim?

    Situational · Truthful safety claims

    Strong answer
    Verifies the facts and time period with operations, uses specific, provable wording, and avoids absolute promises.
    Red flags
    Uses it because no one remembers an accident.
  4. Tell me about a case study or reference story you created with a business client.

    Behavioral · Case studies

    Strong answer
    Got written approval, focused on the client's problem and result, and used it in sales.
    Red flags
    Used a client's building photos without asking.
  5. Tell me about a time you and a sales team disagreed on what leads mattered. How did you resolve it?

    Behavioral · Working with sales

    Strong answer
    Agreed on a written definition of a qualified lead (building type, size, decision-maker, timing), pulled data on which leads became contracts, and changed targeting based on it.
    Red flags
    Kept sending leads sales ignored.
  6. A photo of your crew on a building without visible tie-off is going around online. What do you do?

    Situational · Brand trust

    Strong answer
    Checks with operations what actually happened, responds honestly, and supports any corrective action rather than spinning it.
    Red flags
    Deletes comments and ignores it.

Work exercise: Plan a commercial campaign

Give finalists made-up market data (buildings by type, current clients, win rates) and a [your budget] figure. In [30] minutes, ask them to outline a two-quarter plan to win low-rise and mid-rise contracts and the numbers they'd report.

Office Manager

6 questions · New building checklist
Job description
  1. What paperwork has to be in place before a crew starts at a new commercial building?

    Technical · Start-up paperwork

    Strong answer
    Signed contract or purchase order, a certificate of insurance meeting the building's requirements, the building owner's written confirmation that roof anchors were tested and certified for rope work, site rules, access and tenant notices.
    Red flags
    Just the address and a contact.
  2. A swing-stage job was delayed three times by wind, and the client asks why they're being billed for extra lift rental days. What do you do?

    Situational · Explaining charges

    Strong answer
    Checks the contract's weather terms, gathers the delay log, explains clearly, and escalates if the terms aren't clear.
    Red flags
    Removes the charge without checking, or argues without looking at the contract.
  3. The city requires a sidewalk permit before your crew can barricade below a drop next week. What do you do?

    Situational · Sidewalk permits

    Strong answer
    Finds the city's requirements and lead time, gathers what's needed (site plan, insurance certificate, dates), applies right away, tracks approval, warns dispatch and the client if the date is at risk, and files the permit with the job.
    Red flags
    Lets the crew set up without it and hopes no one checks.
  4. Tell me about a time you set up a system to track documents with expiry dates.

    Behavioral · Organizing records

    Strong answer
    Explains the tracker for insurance, anchor certifications, training and permits, reminders set well ahead of expiry, and that nothing lapsed.
    Red flags
    Relied on memory.
  5. Tell me about a time the office caused a problem for the field. What did you change?

    Behavioral · Supporting field teams

    Strong answer
    Owned the mistake, such as a missing permit or wrong building contact, fixed it with the crew, and changed the office process.
    Red flags
    Blamed the field.
  6. Three property management companies each use a different invoicing portal with different rules. How do you keep invoices from being rejected?

    Situational · Vendor portals

    Strong answer
    Documents each portal's rules, sets them up in billing, checks before submitting and tracks rejections.
    Red flags
    Fixes each rejection as it happens.

Work exercise: New building checklist

Give finalists a made-up new contract with a building's insurance requirements and rope work scope. In [20] minutes, ask them to list every document they need before work starts and draft the email requesting what's missing.

Operations Manager

6 questions · Plan a mixed week
Job description
  1. How do you decide which crews and equipment go to high-rise jobs versus storefront routes?

    Technical · Crew and equipment allocation

    Strong answer
    Matches certifications and experience, equipment availability, weather windows, contract dates and location.
    Red flags
    Sends whoever is free.
  2. A crew needs a boom lift along a wall where overhead power lines run close to the building. What do you require?

    Situational · Lifts near power lines

    Strong answer
    Treats the lines as energized, keeps the lift, crew and tools outside the clearance OSHA requires, asks the utility to de-energize or cover the lines if work must be closer, uses a spotter, or picks another access method.
    Red flags
    Tells the operator to be careful near the lines.
  3. Rework requests have risen on storefront routes. What do you do?

    Situational · Rework reduction

    Strong answer
    Sorts by tech and cause, rides along, checks tools and water quality, coaches and tracks.
    Red flags
    Tells techs to be careful.
  4. Tell me about a time you improved how storefront routes or field crews were scheduled. What changed?

    Behavioral · Process improvement

    Strong answer
    Names the change, such as regrouping stops or setting start times by store opening, and the measured improvement in stops per day or late visits.
    Red flags
    Has no measured result.
  5. Tell me about a time you coached a supervisor who was struggling.

    Behavioral · Supervisor development

    Strong answer
    Diagnosed the issue through ride-alongs and data, set clear goals, coached weekly, and the supervisor's crews improved.
    Red flags
    Took over their job.
  6. Storefront techs on similar routes finish at very different times. What do you do?

    Situational · Route productivity

    Strong answer
    Compares stops, glass and travel, rides with the fastest and slowest, and shares the best methods.
    Red flags
    Assumes the slow tech is lazy.

Work exercise: Plan a mixed week

Give finalists a made-up week: two high-rise jobs, a post-construction clean, twelve storefront routes, crew certifications, equipment and a windy Thursday. In [30] minutes, ask them to assign crews and explain their backup plan.

Sales Manager

6 questions · Review a high-rise bid
Job description
  1. A rep wants to underbid a high-rise contract to get in the door. What do you do?

    Situational · Bid discipline

    Strong answer
    Reviews the estimate, checks access and weather assumptions, holds a minimum margin, and walks away if needed.
    Red flags
    Approves it to win the logo.
  2. How should commercial window cleaning be priced: per building, per drop, per hour or per pane?

    Technical · Pricing structure

    Strong answer
    Explains when each fits, ties prices to labor and access costs, and adds weather and escalation terms.
    Red flags
    Uses one method for everything.
  3. Tell me about a rep you coached into a top performer.

    Behavioral · Coaching reps

    Strong answer
    Explains the rep's gap, the coaching (proposal reviews, joint walkthroughs, practice), and the measured change in proposals or wins.
    Red flags
    Has only given pep talks.
  4. Tell me about a time you had to let a sales rep go.

    Behavioral · Managing a team

    Strong answer
    Set clear goals, documented gaps, gave real support and time, made the call fairly, and changed how they hire afterward.
    Red flags
    Avoided it until results collapsed.
  5. Several large contracts renew this year, and one client is unhappy. What's your plan?

    Situational · Renewals

    Strong answer
    Ranks renewals by risk, meets the unhappy client with operations to fix issues first, and plans price adjustments with data.
    Red flags
    Waits for renewal dates.
  6. How do you run a weekly pipeline review with your reps?

    Technical · Pipeline management

    Strong answer
    Reviews each deal's stage, next step and close date, challenges optimistic deals, and coaches on stuck ones.
    Red flags
    Asks reps how they're feeling about their deals.

Work exercise: Review a high-rise bid

Give finalists a made-up high-rise bid with three planted errors: no weather days, no rigging time and a missing permit cost. In [25] minutes, ask them to find them, fix the price, and coach you as the rep.

Warehouse Manager

6 questions · Gear room audit
Job description
  1. How do you manage the inspection and retirement of ropes, harnesses and descent devices?

    Technical · Life-safety gear control

    Strong answer
    An ID on every item, pre-use checks by the user plus scheduled inspections by a competent person, a log, retirement after a fall or damage or at the maker's limits, and storage away from chemicals and sun.
    Red flags
    Replaces gear when it looks worn.
  2. A tech returns a rope that sat in a chemical spill on a roof. What do you do?

    Situational · Chemical exposure

    Strong answer
    Quarantines it, follows the maker's guidance, retires it if there's any doubt, and logs it.
    Red flags
    Rinses it and puts it back.
  3. A swing stage motor acted up on the last job. What do you do before it goes out again?

    Situational · Powered platform maintenance

    Strong answer
    Tags it out, has it inspected and repaired by a qualified person, logs the repair, and checks it before release.
    Red flags
    Sends it out if it runs.
  4. Tell me about a time a crew wanted to take out equipment you'd found a problem with. How did you handle it?

    Behavioral · Holding the line on gear

    Strong answer
    Names the defect (a frayed rope, a lift past its inspection date, a sticky descender), tagged it out of service, offered a replacement or helped reschedule, and held the line when the crew pushed back.
    Red flags
    Let it go out because the crew needed it.
  5. Tell me about a time you got gear ready for a busy stretch of work. What did you plan?

    Behavioral · Planning for peak work

    Strong answer
    Inspected and serviced gear ahead of time, ordered spares, set a staff schedule, and nothing critical was missing when work peaked.
    Red flags
    Dealt with each shortage as it came up.
  6. Crews keep swapping ropes and harnesses between trucks without telling you. What do you do?

    Situational · Gear tracking

    Strong answer
    Assigns gear to trucks or techs, uses the IDs to track it, explains why it matters for inspections, and checks regularly.
    Red flags
    Lets it go as long as the gear exists.

Work exercise: Gear room audit

Set out (or show photos of) ropes, harnesses and devices with planted problems: an untagged rope, a harness past its retirement date, a device with a sticky cam and a rope stored next to chemicals. Give the candidate [15] minutes to find each one and say how they would fix it.

Customer Service Representative

6 questions · Three practice calls
Job description
  1. A property manager calls asking why their building's windows weren't cleaned on the scheduled day. Wind stopped the crew. What do you say?

    Situational · Weather postponements

    Strong answer
    Explains the wind safety rule plainly, gives the new date, offers to notify tenants again, and follows up in writing.
    Red flags
    Says the crew was busy, or promises a date without checking.
  2. A tenant calls angry that dirty water dripped on their car parked below the crew. What do you do?

    Situational · Third-party complaints

    Strong answer
    Listens, apologizes, takes details and photos, tells the supervisor so the crew can protect parking, and explains how the claim will be handled.
    Red flags
    Tells them it's just water.
  3. What do you confirm with a new storefront client before their first route visit?

    Technical · Setting up storefront clients

    Strong answer
    Opening time and the service window, inside and outside glass, frequency, the on-site contact, parking, and any decals, film or signs the tech must avoid.
    Red flags
    Just the address and day.
  4. Tell me about a time a business client, such as a store or property manager, reported a problem and you saw it through to the fix.

    Behavioral · Ownership

    Strong answer
    Logged the details, got the right person to act, gave the client a time, followed up after the fix, and confirmed the client was satisfied.
    Red flags
    Passed it on and never checked.
  5. Tell me about a time you needed something from a busy client who wasn't responding, such as access details before a scheduled job.

    Behavioral · Working with busy clients

    Strong answer
    Tried several channels, made a short, specific request that was easy to answer, explained what would happen without it, and documented each attempt.
    Red flags
    Waited for them to reply.
  6. A tenant calls upset that a worker appeared outside their office window without warning. What do you do?

    Situational · Tenant notice

    Strong answer
    Apologizes, explains the work and how long it will last, checks whether the building's tenant notice went out, tells the supervisor, and makes sure future notices reach tenants ahead of time.
    Red flags
    Tells them to close the blinds.

Work exercise: Three practice calls

Role-play three calls using a made-up schedule: a property manager asking about a wind delay, a tenant with water on their car, and a new storefront request. Allow [15] minutes total. Score clarity, honesty, follow-up and notes.

Dispatcher

6 questions · Rebuild a windy day
Job description
  1. High winds are forecast tomorrow. You have four high-rise jobs and ten storefront routes. What do you do?

    Situational · Weather decisions

    Strong answer
    Works with supervisors to postpone rope and lift work, keeps storefronts running, moves high-rise crews to ground work, and tells building contacts early.
    Red flags
    Keeps everything booked and lets crews decide in the morning.
  2. A storefront route tech is sick, and twenty stores expect service before they open tomorrow. What do you do?

    Situational · Covering routes

    Strong answer
    Splits the route among nearby techs, starts earlier where stores allow it, tells any store that will be late, and logs it.
    Red flags
    Skips the route and waits for complaints.
  3. What details does a high-rise job need on the schedule before a crew goes out?

    Technical · High-rise job readiness

    Strong answer
    Building contact, roof access, anchor paperwork on file, sidewalk permits, lift delivery times, crew qualifications, tenant notices and parking.
    Red flags
    The address and time.
  4. Tell me about a time a detail slipped through on a schedule you ran. What did you change?

    Behavioral · Keeping track

    Strong answer
    Owns it, explains the effect on the crew or client, and describes the checklist or system they added so the same detail can't slip again.
    Red flags
    Blames others.
  5. Tell me about a time a rope crew lead disagreed with a drop schedule you set. How did you handle it?

    Behavioral · Working with crews

    Strong answer
    Listened to the lead's reasons, explained limits such as weather or client dates, changed the plan for good reasons or explained why not, and never pushed a crew to work in conditions the lead called unsafe.
    Red flags
    Pulled rank without listening.
  6. The lift rental company says the boom lift will be three hours late. What do you do?

    Situational · Vendor delays

    Strong answer
    Gives the crew other work nearby, tells the building contact, checks whether the job can still finish safely in daylight, and reschedules if not.
    Red flags
    Has the crew wait all day.

Work exercise: Rebuild a windy day

Give finalists a made-up day: four high-rise jobs, ten storefront routes, crew qualifications and a wind forecast. In [20] minutes, ask them to rebuild the day and list who they'd call and what they'd say.

Bookkeeper

6 questions · Close out a post-construction job
Job description
  1. Walk me through how you make sure every building on the contract list gets billed each month.

    Technical · Billing every contract

    Strong answer
    Compares the contract list to completed cleans and invoices sent, flags any building with no invoice, checks weather-delayed cleans, and reports gaps to the Office Manager.
    Red flags
    Bills whatever operations sends over.
  2. How do you track retainage and lien waivers on a post-construction clean billed through a general contractor?

    Technical · Retainage and lien waivers

    Strong answer
    Records retainage as a separate receivable by job, sends conditional waivers with pay applications and unconditional ones only after payment clears, and follows up on retainage at project closeout.
    Red flags
    Treats the reduced payment as a discount, or sends unconditional waivers before being paid.
  3. Your workers' compensation carrier's premium audit is next month. How do you prepare?

    Situational · Premium audit preparation

    Strong answer
    Pulls payroll split by job type as the policy's classifications require, backs it with time records, gathers current certificates for every subcontractor, and reviews it with the CFO before the auditor arrives.
    Red flags
    Hands the auditor a payroll total and lets them sort it out.
  4. A subcontractor's insurance certificate expired two months ago, and their invoice is due today. What do you do?

    Situational · Subcontractor insurance

    Strong answer
    Flags it to the CFO before paying, requests a current certificate, and explains that uninsured subcontractors can add to the company's premium at audit.
    Red flags
    Pays the invoice and updates the log later.
  5. Tell me about a time a customer payment came in without enough detail to apply it. What did you do?

    Behavioral · Tracing payments

    Strong answer
    Matched it using amounts, dates and portal records, contacted the payer when needed, and kept a note of how that customer pays.
    Red flags
    Left it unapplied for months.
  6. Tell me about a time you had to learn a new reporting requirement quickly, such as certified payroll or a new portal.

    Behavioral · Learning new requirements

    Strong answer
    Found the official guidance, asked the right people, built a checklist and got it right the first time.
    Red flags
    Guessed and fixed it after it was rejected.

Work exercise: Close out a post-construction job

Give finalists a made-up post-construction window cleaning job: contract value, two pay applications, retainage held, one change order and the general contractor's waiver forms. In [25] minutes, ask them to show what's still owed, which waiver goes with which payment, and what they'd send next.

Inventory Specialist

6 questions · Plan resin and supplies
Job description
  1. How do you track resin and filters for the purified water systems crews use on low-rise glass?

    Technical · Water purification supplies

    Strong answer
    Logs TDS readings and gallons produced by system, replaces resin when output TDS starts to rise, stocks by usage, and spots systems that burn through resin fast.
    Red flags
    Replaces resin when crews complain.
  2. Storefront route techs say a new batch of squeegee rubbers streaks and wears out within days. What do you do?

    Situational · Supplier quality

    Strong answer
    Gets samples back, compares them with the old batch and the order specs, asks the supplier for replacements, swaps in good stock, and tracks rubber life by batch.
    Red flags
    Tells techs to make them last.
  3. Crews take supplies from the shelf without signing them out. What do you do?

    Situational · Sign-out discipline

    Strong answer
    Makes sign-out quick, sets up truck kits restocked on a schedule, and follows up on gaps.
    Red flags
    Locks everything up so crews can't get supplies.
  4. Tell me about a time you negotiated a better price or delivery terms with a supplier.

    Behavioral · Vendor management

    Strong answer
    Explains what they asked for, the data they used such as volumes or competing quotes, the result, and how they kept the relationship.
    Red flags
    Has never negotiated, or burned the supplier relationship.
  5. Tell me about a time you found and fixed a recurring stock error.

    Behavioral · Accuracy

    Strong answer
    Traced the error to its cause, such as unrecorded truck restocks, and changed the process so counts matched afterward.
    Red flags
    Adjusted the count each time.
  6. The supplier stops making your usual glass soap and offers a new one. What do you check?

    Situational · Product changes

    Strong answer
    The safety data sheet, safety on frames and coatings, how it works with crews' tools, and runoff concerns, with a field test before switching.
    Red flags
    Switches because it's the same price.

Work exercise: Plan resin and supplies

Give finalists made-up meter readings and usage for four water systems and three supply items over a month. In [20] minutes, ask them to plan next month's order and flag the system that looks wrong.

Sales Representative

6 questions · Assess and propose
Job description
  1. Walk me through a site assessment for a six-story office building.

    Technical · Site assessment

    Strong answer
    Access options, roof anchors and their paperwork, glass types and area, ground conditions and foot traffic, landscaping, permits, tenant hours, interior glass and frequency.
    Red flags
    Counts windows from the parking lot.
  2. A property manager forwards a competitor's much lower quote for their building and asks you to match it. What do you do?

    Situational · Price objections

    Strong answer
    Asks what's included, explains access, safety and insurance differences, and holds value.
    Red flags
    Matches the price on the spot.
  3. On a walkthrough, you find the roof anchors have no certification records. What do you tell the client?

    Situational · Anchor problems

    Strong answer
    Explains that rope work needs the building owner's written confirmation that the anchors were tested and certified, offers to price another access method, and recommends getting the anchors inspected.
    Red flags
    Ignores it and quotes rope work.
  4. Tell me about a deal where several people had a say, such as an owner, a property manager and a board. How did you keep it moving?

    Behavioral · Multi-person decisions

    Strong answer
    Mapped who decided and who influenced, gave each person what they needed, and set a clear next step after every meeting.
    Red flags
    Talked only to their one contact and waited.
  5. Tell me about a building or property bid you lost. What did you learn?

    Behavioral · Learning from losses

    Strong answer
    Gives a specific bid, what the client valued that they missed, and a change they've made in walkthroughs or proposals since.
    Red flags
    Blames the client.
  6. A general contractor asks for a price on a post-construction window clean. What do you need to know?

    Situational · Post-construction scope

    Strong answer
    Glass types and area, debris like paint and stucco, access and lift needs, other trades' schedules, the safety plan and billing terms such as retainage.
    Red flags
    Asks for square footage only.

Work exercise: Assess and propose

Give finalists a made-up building package: photos, roof plan and notes on traffic and tenants. In [20] minutes, ask them to list missing questions, choose access methods and outline the proposal they'd present.

Lead Technician

6 questions · Plan a drop
Job description
  1. Before rigging a rope descent system, what do you need to confirm about the roof anchors?

    Technical · Anchor verification

    Strong answer
    Written confirmation from the building owner that each anchor was identified, tested, certified and maintained, a visual check, separate anchors for the main and safety lines, and edge protection.
    Red flags
    Ties off to whatever looks solid, like a vent or pipe.
  2. How do you set up the ground below a drop?

    Technical · Protecting the public

    Strong answer
    Barricades and signs around the drop zone, a ground person, coordination with building management on entrances, tool tethering and control of water runoff.
    Red flags
    Puts out one cone.
  3. Halfway down a drop, a tech sees their rope rubbing on a sharp edge above. What should happen?

    Situational · Rope damage

    Strong answer
    Stops and alerts the crew, keeps the independent lifeline attached, has the edge protected from the roof if that's safe, gets down by the safest route or the rescue plan, and has the rope inspected or retired before more drops.
    Red flags
    Finishes the drop quickly.
  4. The building manager pressures you to finish today though the wind is picking up. What do you do?

    Situational · Holding the line on safety

    Strong answer
    Stops work, explains the safety reason respectfully, reschedules, and tells the office.
    Red flags
    Keeps working to keep the client happy.
  5. Tell me about a time you stopped a job for safety. What happened?

    Behavioral · Making safety calls

    Strong answer
    Gives a specific example (wind, a damaged rope, missing anchor paperwork, a lift on soft ground), what they saw, how they explained it to the client or office, and what happened next.
    Red flags
    Has never stopped a job.
  6. Tell me about a time you trained a tech on rope or lift work. How did you know they were ready for the next step?

    Behavioral · Training at height

    Strong answer
    Trained in steps from ground practice to supervised work, watched them do gear checks and descents, and used clear sign-off criteria before giving more responsibility.
    Red flags
    Took their word that they were ready.

Work exercise: Plan a drop

Give finalists a made-up roof plan with anchor locations, a building elevation and notes on the sidewalk below. In [20] minutes, ask them to plan drop order, rigging, ground protection and the rescue plan, then brief you as the crew.

Technician

6 questions · Gear check and glass sample
Job description
  1. Before cleaning storefront glass on a busy sidewalk, how do you set up?

    Technical · Storefront setup

    Strong answer
    Checks in with the store, keeps gear out of walkways and doors, puts out cones or signs, controls water so no one slips, and watches for people.
    Red flags
    Starts cleaning with buckets in the middle of the sidewalk.
  2. Walk me through how you inspect your harness, lanyard and lifeline before using them.

    Technical · Gear inspection

    Strong answer
    Checks webbing for cuts, fraying and burns, stitching, D-rings and buckles, that snap hooks close and lock, labels, and any fall indicator, and takes damaged gear out of service.
    Red flags
    Puts it on and goes.
  3. You're cleaning the third floor from a boom lift, and the wind picks up so the basket sways. What do you do?

    Situational · Wind on a lift

    Strong answer
    Stops work, stays tied off, lowers the basket, tells the lead, and waits until the wind is within the lift maker's limits.
    Red flags
    Hurries to finish the floor.
  4. A store employee asks you to also clean the inside glass, which isn't on your work order. What do you do?

    Situational · Scope requests

    Strong answer
    Stays polite, calls the office to see if it can be added, and doesn't do unbilled work on their own.
    Red flags
    Does it for free, or refuses rudely.
  5. Tell me about a time you followed a safety rule on a job even though it slowed you down.

    Behavioral · Safety over speed

    Strong answer
    Gives a specific example, such as tying off, setting barricades or waiting out wind, and explains why it mattered.
    Red flags
    Admits they skip rules when rushed.
  6. Tell me about a time you worked with a crew where you depended on each other for safety.

    Behavioral · Teamwork

    Strong answer
    Gives an example of checking each other's gear or setup, using clear signals or radio calls, and speaking up when something looked wrong.
    Red flags
    Prefers to work alone and doesn't see the point.

Work exercise: Gear check and glass sample

Lay out three harnesses and lanyards, one with planted damage such as cut webbing or a snap hook that won't lock. Give the candidate [10] minutes to inspect and explain. Then have them clean a practice glass panel at ground level with a squeegee in [5] minutes. No climbing or rigging.

Start Hiring Now.

Tell us who you need to hire. Compare plans, then work with HireBus to set up your first role.

Start Hiring Now
It lets me organize my time better.Kara Gallegos, Clean USA

Plan details, setup costs, and advertising spend · See pricing