Window Cleaning Business Insurance

According to a law firm analysis of OSHA accident records, seven window washers died nationwide in a two-year period from 2022 to 2023, and the majority involved falls. That risk profile puts window cleaning in a different insurance category from most cleaning businesses, and it shows up in your premiums.

A solo operator doing residential work can get covered for under $500 a year. A two-person crew doing commercial buildings will spend more, but there are ways to manage that cost.

Why Do Window Cleaning Businesses Need Insurance?

Window cleaning crews work with ladders, scaffolding, water-fed poles, pressure equipment, and caustic cleaning chemicals, often on other people’s property. According to Simply Business, the average small business claim for property damage or accidents runs $30,000. For window cleaners who regularly work near pedestrian areas and expensive glass, those claims can easily run higher.

Beyond accidents, commercial and residential clients routinely require proof of coverage before letting you on-site. Property managers demand a certificate of insurance for any multi-story work. Without one, you are not getting the contract.

Insurers evaluate window cleaning applications more carefully than standard janitorial coverage because a dropped tool at ground level is a nuisance, while the same tool falling from a third-story ladder can injure a pedestrian and trigger a six-figure claim.

What Insurance Do Window Cleaning Companies Need?

Not every policy below is equally important for every operation. I’ve ordered these by how critical they are for most window cleaning businesses, with situational ones flagged clearly.

General Liability Insurance

This is the policy every window cleaner needs before taking on a single client. It covers third-party bodily injury and property damage caused by your operations: a pedestrian who slips on water your crew tracked across a sidewalk, a storm door damaged by a ladder, a window frame scratched during cleaning. General liability is what pays.

The products-completed operations portion of your general liability policy also matters here. If a client discovers scratched glass or peeled window film after your crew has left, that workmanship claim runs through general liability, not professional liability, which is a separate and narrower coverage discussed below.

Workers’ Compensation Insurance

If you have employees, workers’ comp isn’t optional in most states. Most states require it from the moment you hire your first worker. Even in states that don’t mandate it, skipping it is a serious mistake in this trade. Falls are the leading cause of fatal injuries in the construction industry (BLS, 2023), and health insurance routinely denies claims tied to on-the-job injuries.

For above-ground window cleaning specifically, the NCCI class code 9170 carries a national average rate of approximately $8.69 per $100 of payroll (meaning for every $100 you pay your employees, you owe around $8.69 in workers’ comp premium). Rates vary by state and can be higher in high-cost markets. Solo operators who work at heights should consider a voluntary policy too, since a broken leg from a ladder fall without coverage means those medical bills come out of your own pocket.

Commercial Auto Insurance

Personal auto policies don’t cover accidents that happen while driving for work. If you own vans or trucks to haul ladders, water-fed poles, and crew between jobs, commercial auto is a legal requirement in almost every state. For most window cleaning businesses running one or two vehicles, budget around $1,950 per year. The actual number moves with your drivers’ records and how many miles your crew logs.

Inland Marine Insurance

Standard commercial property insurance protects equipment at your fixed business location; it stops the moment your gear leaves. Inland marine coverage, often called a tools and equipment floater, covers your water-fed poles, pressure washers, squeegees, and cleaning systems while in transit or sitting at a job site.

If your truck gets broken into overnight and someone steals your water purification system, inland marine is what replaces it. Without it, you’re buying new equipment out of pocket.

Professional Liability Insurance (Errors & Omissions)

For window cleaners doing primarily residential work, general liability handles most claims. For commercial accounts, especially high-value properties, corporate buildings, or clients with tinted or specialty glass, professional liability (E&O) adds a meaningful layer of protection.

Where general liability covers physical accidents and completed-work damage, E&O covers claims rooted in service quality disputes and financial loss. If a client alleges you missed scheduled windows for a commercial property and they claim business disruption costs, or that your team failed to follow a specified cleaning protocol on UV-protective glass. That type of claim is where E&O picks up.

Surety Bonds (Janitorial Bond)

Bonding is separate from insurance but equally important for building client trust. A janitorial bond reimburses a client if one of your employees is accused of theft. If a homeowner claims jewelry went missing after your crew was inside, the bond pays the client, protecting your reputation even when the facts are not clear. Some commercial clients and government contracts require a bond before they’ll hire you. It’s cheap coverage, typically a few hundred dollars a year.

Umbrella Insurance

Window cleaning claims can get expensive quickly when bodily injury at height is involved. Umbrella insurance adds a layer of protection above your existing liability policies. If a general liability claim exceeds your $1 million per-occurrence limit, umbrella coverage handles the remainder. Commercial building owners often require $2 million or more in coverage for high-rise work, and umbrella insurance is the most cost-effective way to hit those thresholds.

Business Owner’s Policy (BOP)

A BOP bundles general liability and commercial property insurance into one package at a lower combined price than buying both separately. For window cleaners who have a physical location (a shop, warehouse, or storage unit with equipment), it’s typically the most efficient starting point for coverage.

If you operate entirely out of your truck with no fixed business location, pairing general liability with inland marine coverage for your equipment may be cheaper and better suited to how you actually work. Ask your broker to compare both options.

Hired and Non-Owned Auto (HNOA) Insurance

HNOA covers situations where employees drive personal vehicles for work tasks: picking up supplies, covering for a crew member with a broken-down vehicle, or using a rented truck on a big commercial job. Personal auto policies exclude business-related accidents, and so does commercial auto, which only covers company-owned vehicles. If your crew never drives personal vehicles for work, skip it. If they sometimes do, HNOA fills that gap at low cost.

Contractors Pollution Liability Insurance

This one is easy to overlook, but relevant for commercial window cleaning. Cleaning solution runoff, especially from pressure washing applications or heavy chemical treatments, can cause property damage or bodily injury to third parties if it reaches landscaping, drainage systems, or adjacent surfaces. Contractors pollution liability covers third-party bodily injury, property damage, and legal defense costs for pollution events tied to your operations. Insureon specifically flags this coverage as applicable to window cleaners.

Commercial Property Insurance

If you own or lease a shop, office, or warehouse where you store equipment and materials, commercial property insurance covers the building and contents against fire, vandalism, storms, and theft at that fixed location. For most solo window cleaners without a fixed base, inland marine coverage will do more of the work.

Business Personal Property (BPP) Insurance

BPP covers movable assets inside your business premises: office equipment, furniture, cleaning inventory stored on-site. If a pipe bursts and floods your storage area, ruining your cleaning chemicals and scheduling equipment, BPP handles the replacement costs.

Cyber Liability Insurance

Window cleaners often hold client information that’s more sensitive than it looks: home addresses, alarm codes, gate codes, recurring payment details. If you use scheduling software, store payment cards on file, or handle client access credentials digitally, a data breach creates real liability. Cyber liability is still situational for this trade, but worth asking about if your operation handles significant client access information.

Cheapest Window Cleaning Professional Liability Insurance

The Hartford is the cheapest option for professional liability coverage for window cleaners, with an average estimated cost of approximately $655 per year.

Note: Rates reflect 2025 market estimates for a small window cleaning business with revenue under $150,000. Professional liability is most relevant for commercial accounts and specialty glass work. Your actual premium will vary based on claims history, coverage limits, and the types of properties you service.

Cheapest Window Cleaning Business General Liability Insurance

NEXT Insurance is the cheapest option for general liability coverage, with policies starting as low as $220 per year for qualified low-risk businesses.

Note: Rates are based on provider starting figures for standard $1M/$2M liability limits. Premiums for window cleaners vary significantly based on whether you work at ground level or on multi-story buildings, your crew size, and your state. High-rise work typically pushes rates toward the higher end of the range.

Cheapest Window Cleaning Business Owner’s Policy

Thimble is the cheapest option for a Business Owner’s Policy, with average costs around $768 per year.

Note: BOP figures are based on a standard package including general liability and equipment coverage for a two-person crew. If you don’t have a fixed business location, ask your broker about pairing general liability with an inland marine floater for your tools instead; it may be cheaper and better suited to your operation.

How Much Does Window Cleaning Business Insurance Cost?

On average, window cleaning businesses pay around $62 per month for general liability insurance.

What you actually pay depends heavily on whether you’re cleaning residential windows from a standard ladder or commercial high-rises from scaffolding. Insurers treat height as the primary risk variable. A dropped pole falling three stories onto a pedestrian is a completely different liability exposure from a puddle of soapy water on a homeowner’s walkway.

Note: Figures are based on current U.S. market data for small window cleaning businesses with annual revenues under $150,000 and fewer than three employees. Premiums change meaningfully with crew size, building height, and claims history.

How Is Your Window Cleaning Business Insurance Cost Calculated?

Height exposure is the biggest single factor. Ground-floor residential work sits in one underwriting bracket. Work on buildings above three stories, especially with scaffolding or rope descent systems, gets detailed scrutiny from underwriters and carries significantly higher workers’ comp and liability rates.

After height, your claims history matters most. Insurers typically request five years of loss runs and weigh the past three years most heavily. One large isolated claim is less concerning than three small claims in a row, because a pattern signals ongoing risk management problems. A clean loss history is one of the best levers you have for keeping premiums down.

Crew size and turnover factor in too. Experienced, stable crews with documented safety training get better terms than operations with high seasonal turnover and no written protocols. Fresh hires are statistically more likely to be involved in accidents, and underwriters know it.

Your geographic market and revenue mix round out the picture. Workers’ comp for above-ground window cleaning (NCCI code 9170) averages $8.69 per $100 of payroll nationally, meaning a crew member earning $50,000 a year generates roughly $4,350 in workers’ comp premium before your experience rating is applied. Commercial building owners increasingly require $2 million or more in liability coverage for high-rise contracts, which typically means buying umbrella coverage on top of your base policy.

How Do You Get Window Cleaning Business Insurance?

Getting insured is faster than most people expect. Here’s how to do it properly:

1. Assess your actual risk profile. Know what you’re doing before comparing quotes. Do you work at heights above two stories? Do you have employees? Do you own company vehicles? Are you targeting commercial high-rise accounts? If you plan to work with general contractors or commercial property managers, note that most will want to be listed as an additional insured on your policy. Bring this up with your broker at step three, since it shapes which coverage structure you need.
2. Gather your business information. Insurers will ask for your business structure (LLC, sole proprietor, etc.), annual revenue, number of employees, types of services, and five years of claims history. Having those numbers ready speeds everything up.
3. Compare providers and get quotes from multiple carriers. Look specifically for insurers with experience writing policies for trade contractors who work at heights; they understand your risk class better than a generalist carrier.
4. Read the exclusions, not just the premiums. Cheap general liability policies sometimes exclude working above a certain height, or exclude glass damage entirely. A policy that won’t pay when a window actually breaks isn’t worth having.
5. Buy the policy and keep records. Save your COI somewhere you can pull it up instantly. Set a calendar reminder to review coverage at renewal, especially if you’ve expanded into taller buildings, hired new staff, or added services like gutter cleaning or pressure washing.