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Window Cleaning

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Window cleaning sounds like the simplest service anyone sells until you count what is actually in the job. There is glass on both sides, screens that hold their own layer of grime, tracks and sills full of grit, frames that stain, and on almost every American house at least one elevation nobody reaches from the ground. That last part is what separates a cleaning visit from work at height, and it is where the real differences between companies show up.

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The rules that govern working above the ground are workplace safety rules. OSHA's construction fall protection standard requires that each employee on a walking or working surface with an unprotected side or edge which is 6 feet or more above a lower level be protected by guardrail systems, safety net systems, or personal fall arrest systems, and the portable ladder standard requires side rails to extend at least 3 feet above an upper landing surface and requires nonconductive side rails where the worker or the ladder could contact exposed energized electrical equipment. The Occupational Safety and Health Act defines an employer as a person engaged in a business affecting commerce who has employees, which is why those duties sit with the cleaning company rather than with you. Your part is to hire a company that treats them as real.

The other thing worth knowing before you buy is that not every mark on a window is dirt, and some of them no amount of washing will remove.

What a window cleaning visit actually covers

Two quotes for the same house can describe very different visits. Decide what you want included before you compare numbers, because screens and tracks are the line items companies most often leave out and later charge for.

  • Exterior glass on every accessible window, which is the part that changes how the house looks from the street.
  • Interior glass, which requires access to each room and a plan for furniture, blinds and pets.
  • Screens: removed, washed and dried separately, since a dirty screen re-soils clean glass the first time it rains.
  • Tracks and sills vacuumed or brushed out before washing, so grit is not dragged across the glass.
  • Frames and exterior trim wiped down, which matters most on white vinyl and on coastal houses carrying salt film.
  • Storm windows and combination units, which have to come apart and go back together correctly.
  • Skylights, transoms and high stairwell glass, which are priced separately because they are reached differently.
  • Post-construction cleaning, a distinct and slower job because the glass carries mortar, stucco, paint and adhesive residue.

Working at height: the standards that bind the crew, not the homeowner

Anything above a stepladder is a different trade. The federal fall protection trigger in construction work is 6 feet above a lower level, and the standard names guardrail systems, safety net systems and personal fall arrest systems as the ways to meet it. Portable ladders carry their own rules: they must be used only for the purpose for which they were designed, used only on stable and level surfaces unless secured against accidental displacement, inspected by a competent person for visible defects on a periodic basis and after any occurrence that could affect safe use, and never loaded beyond the maximum intended load. The top or top step of a stepladder is not a step. None of this is obscure, and a crew that argues with it on your driveway is telling you something useful.

Electricity is the hazard homeowners forget. The ladder standard requires nonconductive side rails where the employee or the ladder could contact exposed energized electrical equipment, which is the whole argument against an aluminum extension ladder set near the service drop running from the pole to your house. On multi-story buildings the rules go further again: where window cleaners work from a rope descent system, OSHA requires the building owner to inform the employer in writing that the owner has identified, tested, certified and maintained each anchorage so it is capable of supporting at least 5,000 pounds in any direction for each employee attached, based on an annual inspection by a qualified person and certification at least every 10 years. If you own or sit on the board of a condominium, that letter is your obligation, not the contractor's.

Because these are employer duties, the practical question for a homeowner is simple and rarely asked: does the company carry workers' compensation coverage for the people it sends, and general liability for the ladder that goes through your siding. Ask for certificates and confirm them with the insurer named on them rather than with the person holding the ladder.

How professionals actually get glass clean

  • Dry debris comes off first: cobwebs, tracks and sills are cleared before any water touches the glass.
  • Screens are pulled, labeled by window, washed away from the house and dried before they go back.
  • Glass is wet with a soap solution and scrubbed with a strip washer rather than sprayed and wiped.
  • A squeegee pulls the water off in overlapping passes, and the edges and corners are detailed by hand.
  • Water-fed poles with purified water are used on many upper windows, which lets the glass dry without spotting and keeps people off ladders.
  • Interior work is done with drop cloths and dry towels, and blinds and sills are dealt with before the glass, not after.
  • The crew walks the house with you at the end, in daylight, because that is when streaks and missed corners are visible.

Marks on the glass that washing will not remove

The most common complaint after a window cleaning is that some windows still look bad. Usually they do, and usually the cleaner is not at fault: the glass has been damaged or deposited on, and that is a restoration or replacement question rather than a cleaning one. A good company identifies these before the visit and prices them separately, or tells you honestly that they cannot be fixed.

  • Mineral deposits from lawn sprinklers hitting the windows, which build up over seasons and can etch the surface permanently.
  • Hard water spotting on shower glass and on windows in high-mineral supplies, which needs a restoration process, not a wash.
  • Construction residue such as stucco splatter, paint overspray and adhesive film left from the builder's protective stickers.
  • Scratches, including fine scratching from a razor used on tempered glass, which is why scraping should be discussed before it happens.
  • Fogging or moisture between the panes, which is a failed seal in the insulated glass unit and is a glazing repair, not dirt.
  • Oxidation stains from aluminum screen frames bleeding onto the glass and the frame below them.
  • Sea salt film on coastal houses, which returns quickly and is a scheduling question rather than a cleaning failure.

When to schedule, and why it depends on where you live

The default American rhythm is twice a year, once after the spring pollen and once after the fall leaves, but the calendar that matters is your own climate. In the Southeast, heavy spring pollen makes an early-spring cleaning look pointless within days, so it is usually worth waiting until the drop is over. Along the Gulf and Atlantic coasts, salt film and storm debris set the schedule. In the desert Southwest, dust and monsoon rain spotting drive it. In the Pacific Northwest, the north and shaded elevations grow a green film that the sunny sides never get.

Cold changes what is possible rather than what is desirable. Exterior washing in freezing weather requires solutions and methods suited to it, and many companies simply stop exterior work for part of the winter in northern states and shift to interiors, which is a sensible time to have them done. If you are selling a house or hosting something, book well ahead of the date rather than in the week of it, because clear weather and a free crew rarely coincide on short notice.

What moves a window cleaning quote, and how LokalMatch fits in

Window cleaning is priced by count and by access, not by square footage of house. The variables that move a US quote are the number of panes rather than the number of openings, how many are divided into small lights by grids or true muntins, how many stories and whether upper windows can be reached with a pole or need ladder work, whether screens and tracks are included, whether storm windows have to be disassembled, landscaping and decks that keep a ladder from being set safely, and whether the job is a routine clean or post-construction. Ask each company to state the pane count it used, and the two bids become comparable immediately.

LokalMatch is where the search starts. You describe the house once: roughly how many windows, how many stories, whether you want inside and out, whether screens and tracks are part of it, and anything unusual such as skylights or a stairwell wall of glass. Window cleaning companies serving your area receive that request and the interested ones contact you directly. Pros pay for the requests they receive, and homeowners use the service free. LokalMatch does not clean windows, does not set or negotiate prices, and does not vet, rank or recommend any company, so checking insurance, workers' compensation coverage and the written inclusions is still yours to do.

Window Cleaning: frequently asked questions

How often should house windows be cleaned?

Twice a year suits most houses, but your climate decides. Heavy spring pollen in the Southeast, salt film on the coasts, desert dust and monsoon spotting in the Southwest, and shaded green film in the Pacific Northwest all push the schedule around. Interior glass usually needs less frequent attention than exterior glass unless you have pets or a wood stove.

Is my second-story glass safe for a crew to reach from a ladder?

That is the company's call to make under the federal rules that apply to it, not yours. OSHA's construction standard requires fall protection at 6 feet or more above a lower level, requires ladder side rails to extend at least 3 feet above an upper landing surface, and requires ladders to be used only on stable and level surfaces unless secured. Many companies now use water-fed poles for upper windows precisely so nobody is on a ladder.

Why do my windows still look cloudy after a professional cleaning?

Because the problem is probably not dirt. Sprinkler mineral deposits, hard water spotting and construction residue sit on or in the glass surface and need a restoration process. Fogging between the panes is a failed insulated glass seal and is a glazing repair. Ask for the cause to be identified in writing before you pay for a second cleaning that will not change anything.

Should the crew use a razor blade on my windows?

Only after a conversation. Scraping removes paint and construction residue quickly, but it can scratch some glass, including tempered panes, and once the surface is marked it stays marked. Ask what will be scraped, on which windows, and who is responsible if a pane is damaged. Post-construction jobs are where this comes up most.

Who is responsible if a window cleaner is hurt at my house?

The company employing them carries the duty under federal workplace rules, which apply to an employer defined as a person engaged in a business affecting commerce who has employees. Your protection is documentary: ask for a certificate of general liability insurance and proof of workers' compensation coverage, and verify both with the insurance carrier named rather than relying on a printed copy.

Do apartment and condominium buildings have extra requirements?

Yes, where cleaners work from a rope descent system. OSHA requires the building owner to inform the employer in writing that each anchorage has been identified, tested, certified and maintained so it can support at least 5,000 pounds in any direction for each attached employee, based on an annual inspection by a qualified person and certification at least every 10 years. Boards and property managers should have that documentation before they hire.

Sources

  1. 29 CFR 1926.501: Duty to have fall protection
  2. 29 CFR 1926.1053: Ladders
  3. 29 CFR 1910.27: Scaffolds and rope descent systems
  4. 29 U.S.C. 652: Occupational Safety and Health Act definitions

Written by the LokalMatch editorial team. Last reviewed September 21, 2026. How we write and check our guides

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What affects the cost of window cleaning

Prices depend on the details of your project. We only publish price ranges when they’re backed by real LokalMatch quote data or reliable sources. Until then, here’s what usually changes the price:

  • Size of the home and number of bathrooms
  • Type of clean: regular, deep, move-in or move-out
  • Current condition and how long since the last clean
  • How often you book
  • Extras like inside the oven, fridge, cabinets or windows
  • Pets, stairs and access

How to compare window cleaners before you hire

  • Ask exactly what's included in a standard clean, a deep clean and a move-out clean, since each company defines them differently.
  • Check whether the company carries liability insurance and whether cleaners are employees or contractors.
  • Ask whether they bring their own supplies and equipment, and whether they can use products you prefer.
  • For recurring service, ask whether the same cleaner or team will usually come.
  • For specialty work like carpet, upholstery or pressure washing, choose someone with the right equipment for that job.

Questions to ask window cleaners before you hire

  • What exactly is included in the clean you're quoting?
  • Do you bring your own supplies and equipment?
  • Are you insured if something is damaged or someone is hurt?
  • Will the same person or team come each time?
  • How do you handle keys, alarm codes and access to my home?
  • What happens if I'm not happy with part of the clean?

Window cleaning permits and local rules

Some window cleaning work needs a permit or has to meet local bylaws. Rules vary by municipality, so ask your pro whether a permit is needed and who will apply for it — and check with your city or town if you’re unsure.

Permits and licensing

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