Adding window cleaning to a cleaning business

Is window cleaning the right add-on?

For a residential cleaning company, windows look like a simple extension: same customers, same houses, same booking process. Customers already ask, especially before holidays, after renovations and when they move. The real question is not whether there is demand, but which kind of window cleaning you can deliver safely and profitably with the team you have.

The market is crowded with small operators. There were 1,095,927 US janitorial and cleaning businesses with no paid employees in 2023^[3], against 67,799 employer establishments^[4]. The average nonemployer cleaning business took in about $20,785 in receipts that year^[5]. When most competitors offer the same standard clean, a well-run add-on gives customers a reason to book you instead.

Four levels of window service

Most house cleaning companies should start at the first two levels. Interior glass fits inside an existing appointment. Ground-level exterior work with a water-fed pole keeps the cleaner's feet on the ground while reaching second-story glass on many homes, and purified water dries without spotting, so there is no squeegee work at height.

Decision criteria

• Demand: count how many customers asked for windows in the past year, and how many deep-clean or move-out jobs included them.
• Team: do you have at least one person who wants to specialize, rather than adding windows to every cleaner's list?
• Schedule: exterior work depends on weather. Can you move a window job without disrupting the house cleaning route?
• Insurance: will your current general liability and workers' compensation policies cover exterior and ladder work, and at what change in premium?
• Equipment and storage: a water-fed pole system needs a vehicle that can carry poles and a filtration unit.
• Pricing discipline: will you charge for windows as a line item, or will the team give it away to keep customers happy?

Safety first, then insurance

Falls are the leading cause of death in construction, with 389 of 1,034 construction fatalities in 2024 being falls to a lower level^[6]. Cleaning is a different industry, but the physics of a ladder are the same. Fatalities among building and grounds cleaning and maintenance workers rose to 356 in 2024 from 337 in 2023^[2].

1. 01

   Write a no-ladder rule for general cleaners

   Only trained window staff use ladders taller than a step stool. General cleaners do interior glass and ground-level exterior only.

2. 02

   Train the window team

   Ladder inspection, setup angle, standoffs, leveling on uneven ground, three points of contact, and when to refuse a job.

3. 03

   Call your broker before the first job

   Describe exactly what you will do, including maximum height. Ask whether exterior work changes your workers' compensation class code or general liability rating.

4. 04

   Set refusal criteria

   Wind, wet ground, steep slopes, glass above a set height or over a conservatory roof: the cleaner can decline and the office reschedules without argument.

5. 05

   Document damage before you start

   Photograph cracked panes, failed seals and damaged screens, and note them on the job record so the customer is not surprised later.

Equipment for a careful start

• Interior kit: professional squeegees in two or three widths, scrubbers, scrapers for paint specks, microfiber cloths and track brushes.
• Water-fed pole system: a lightweight pole, brush heads, and a deionization or reverse-osmosis unit to purify water so glass dries spot-free.
• Ladder kit for trained staff only: an extension ladder with standoff and leveler, and a stepladder for interior high panes.
• Screen cleaning station: a simple bench, soft brush and hose attachment.
• Drop cloths and towels to protect floors and sills.

Buy the interior kit first and measure demand. Add a water-fed pole system once exterior requests are regular enough to fill several jobs a week in season.

Pricing the service

Window cleaning is usually priced per pane or per window, with separate charges for screens, tracks, hard water stain removal and second-story glass. Count the windows during the booking call or from photos the customer sends, and set a minimum charge so a small job still covers travel. Price your labor from your own costs: the median hourly wage for US maids and housekeeping cleaners was $17.07 in May 2025^[7], and specialist window staff working with poles and ladders usually need more training and pay than that.

Show windows as a separate line on every quote. Customers who see the value of the work are more likely to rebook it, and cleaners are less likely to treat it as a favor.

Questions to ask when a window job is booked

Most window pricing problems start on the phone. A customer says they have about twenty windows, the cleaner arrives to find forty panes, French doors and a sunroom, and the job runs two hours over. A short intake script fixes that. Ask every caller the same questions and write the answers on the job:

1. How many windows are there, and are any of them divided into small panes or French doors?
2. Inside, outside or both? Which floors?
3. Are there screens, and do you want them cleaned?
4. Any hard water stains, paint specks or stickers on the glass?
5. Is there anything under the windows we need to work around, such as decks, plants, a pool or a sloped roof?
6. Are there pets, alarms or gates we need to know about?
7. Could you text or email a few photos of the front and back of the house?

Photos settle most disagreements before they start, and they let the office spot second-story glass that needs the window specialist rather than a general cleaner.

Measure whether the add-on is working

• Attach rate: the share of deep-clean and move-out quotes that include windows.
• Revenue per window hour, compared with revenue per cleaning hour.
• Reschedules caused by weather, so you can plan buffer days next season.
• Damage claims and complaints, reviewed monthly with the window team.

Example: a five-person cleaning company adds windows

Example (fictional): a residential cleaning company with five cleaners notices that about one in four spring deep-clean requests ask about windows. The owner trains one cleaner as the window specialist, buys an interior kit and a water-fed pole system, and confirms with the broker that ground-level exterior work fits the existing policy, while ladder work above one story does not.

Example: the company launches interior and ground-level exterior windows in March, offered on every deep clean and move-out quote. Upper-story ladder jobs go to a partner window company for a referral fee. By the end of the season the specialist works two days a week on windows, and the owner reviews whether a second specialist is justified the following spring.

Seasons and scheduling

Demand for windows clusters in spring, early autumn and before holidays, which also makes a useful tie-in with spring cleaning demand. Exterior work stops in rain, freezing temperatures and high wind, so schedule it in blocks with flexible dates and tell customers that the date may move. Many cleaners already work evening hours, and some shifts include nights, weekends or holidays^[8]; window work, by contrast, needs daylight, so plan it on the morning route.

Mistakes to avoid

1. Letting every cleaner climb ladders without training.
2. Adding windows for free to win a regular clean.
3. Booking exterior work on fixed dates with no weather plan.
4. Ignoring screens and tracks in the quote, then spending half the job on them.
5. Taking commercial storefront work above ground level without proper access equipment and cover.

Other add-ons suit different companies. Landscapers often look at snow removal, and roofers at gutters and guards.