What actually drives the cost of insuring a cleaning business in Washington
You came for a number. We are going to give you the ones that are actually published — the state's, to the cent — and then be straight about why the premium is not one of them.
The short answer
Two of the three costs of running a cleaning business in Washington are published and exact. The state business licence is $50 to open and $5 a year to renew. Workers' compensation is $1.6799 per hour worked in 2026 for janitorial risk class 6602, up 4% from 2025.
The insurance premium is the one nobody should quote you sight unseen. Liability in this trade is rated largely on payroll and on what you actually do — height work, water work, and whether the client's property is in your hands — so the same trade produces very different numbers.
What you can control is what the number buys. The cheap quote in this trade is usually cheap because it leaves the care and custody exclusion untouched and covers no equipment. That is a real policy; it is just not the one a cleaning business needs.
Washington State Department of Labor & Industries — 2026 rates by business type
Washington State Department of Labor & Industries — 2026 rates by class code
Washington State Department of Revenue — Business license processing fees
Independent agency · commercial lines across Washington
The costs that are public, to the cent
Before the insurance conversation, two numbers are already fixed and knowable. They are also the two that most new owners get wrong, usually by trusting a figure repeated on a blog rather than the agency that charges it. Both come straight from Washington state.
| Cost | Amount | Who charges it |
|---|---|---|
| Open a business / get a UBI | $50 | Department of Revenue |
| Annual licence renewal | $5 | Department of Revenue |
| Add a location | $0 | Department of Revenue |
| Hire employees, register a trade name | $10 | Department of Revenue |
| Late renewal penalty | up to $150 | Department of Revenue |
| Workers' compensation, class 6602 | $1.6799 per hour worked (2026) | Labor & Industries — the state, not an agency |
Why the L&I line dominates everything
Because it scales with hours rather than with revenue. A full-time cleaner at 2,080 hours costs about $3,494 a year in workers' compensation alone, of which roughly $759 is the worker's share that you may withhold. For most small cleaning businesses that is the largest insurance-shaped cost in the budget.
And it is the one we cannot sell you
Washington is a monopoly state fund state. Workers' compensation is bought from L&I and from nowhere else, so this line is not a quote — it is a rate. The workers' compensation page explains the process we will walk you through regardless.
What moves the liability premium
Commercial liability in this trade is rated mostly on exposure, and exposure is measured through payroll and through what the work involves. The size of your revenue matters less than how many hours of human activity you create and how risky those hours are.
- Payroll. The standard proxy for hours of exposure. More hours, more chances for something to happen.
- What you do. Height work and water work are rated separately and move the number more than headcount does.
- Where you work. Occupied commercial buildings, medical or dental offices, and food premises each carry their own considerations.
- The limits your contracts demand. A building asking for a higher per-occurrence limit is asking you to buy a bigger policy.
- Claims history, weighted toward frequency. Several small property claims read worse than one large accident.
- Whether you add bailee coverage for property in your care. It is a separate inland marine policy with its own premium, and in this trade it is the one most worth paying for.
Offices in Tacoma and Auburn · Serving all of Washington · English and Spanish
Why the cheap quote is cheap
Almost never because someone found a discount. In this trade the low number usually comes from three specific omissions, and each one is invisible on a certificate of insurance — which is exactly why the cheap policy passes a property manager's check and fails at the claim.
The three omissions
No coverage for property in your care, so the client's belongings are excluded. No equipment coverage, so your own machines are your own problem. And a liability limit below what your contracts will eventually require, which means buying it twice.
How to compare two quotes honestly
Put the limits, the deductibles and the endorsement list side by side — not the premiums. If the endorsement lists differ, you are comparing two products. The exclusion to look for by name is the one that decides whether the cheap one was a bargain.
Lowering it without gutting it
There are honest ways to reduce this bill and dishonest ones. The dishonest version is cutting the liability limit and hoping. The honest version is making sure you are classified correctly, moving risk you can absorb onto a deductible, and buying the coverages together rather than separately.
The three that actually work
Classify the work accurately, because a wrong class is a wrong rate applied to every hour. Raise the deductible on property rather than trimming liability. And bundle the liability, the equipment and the vehicle, because carriers price a package better than three unrelated policies.
Getting your actual number
It takes a short conversation, not a form with thirty fields. What you clean, how many people work with you, whether there is a vehicle, how high you work, what any contract in front of you demands, and whether you have had claims. Six answers is enough to quote six carriers.
If you are not open yet
Do the state paperwork first, because the licence and the UBI come before anyone will write you a policy. The order of operations is here. If you are already running and just want the coverage checked, start with what the four products do, then get a quote or read our business insurance page. Who we are.
Frequently asked questions
How much does cleaning business insurance cost?
Anyone who answers that with a single number before seeing your business is guessing. What we can tell you exactly are the government costs, because they are published: the state business licence and the L&I rate per hour worked. The insurance premium depends on the factors below.
Why will nobody publish a price for this?
Because the same trade produces wildly different risks — a solo residential cleaner and a six-person crew doing offices and exterior windows are not the same purchase. A published number is either the best case, which misleads, or the worst, which scares people off.
What is the single biggest driver of my premium?
Payroll, in most commercial liability rating. It is the closest available proxy for how many hours of exposure you create. Second is what you actually do — height work and water work move the number more than the size of the business does.
Is the cheapest policy ever the right one?
Sometimes, and you can only know by comparing what is in it. In this trade the cheap quote is usually cheap because it has the care and custody exclusion unmodified and no equipment coverage — which is a real policy, just not the one your work needs.
Can I lower the cost without lowering the coverage?
Usually yes, in three places: classify the work accurately, raise the deductible on property rather than cutting liability limits, and bundle the general liability with the equipment and the vehicle instead of buying three unrelated policies.
Does a claim raise my premium in this trade?
It can, and frequency matters more than severity. Several small property claims read worse to an underwriter than one unlucky large one, because frequency looks like a process problem rather than bad luck.
Keep reading
Sources
- Washington State Department of Labor & Industries — 2026 workers' compensation rates by business type and class code (class 6602: $1.6098 in 2025 to $1.6799 in 2026).
- Washington State Department of Labor & Industries — 2026 hourly rates by risk classification code and fund.
- Washington State Department of Revenue — Business license processing fees.
- International Risk Management Institute — Care, custody or control exclusion in the CGL.
This article is general information about insurance in the state of Washington. It is not legal advice and it is not an offer of coverage. Whether a policy covers a given loss depends on its own wording, its endorsements and its exclusions; read yours, or send it to us and we will read it with you. Anel Galicia is a licensed insurance producer in the state of Washington.