What the state adds to the price, and what it lets you verify
Federal rules for cleaning contractors are thin; the expensive differences are state-level. What California charges in sales tax, whether it licenses cleaning companies at all, and what its wage floor does to Dublin labor cost are below with official sources.
Two free marketplace paths: one request brings back multiple vetted cleaning contractors who know they are competing for the account.
California does not charge sales tax on commercial cleaning services, so a Dublin cleaning quote is the whole price - California sales tax applies to tangible personal property, not to service-only janitorial labor, because the true object of the contract is the service. Same for residential and commercial..
California requires cleaning contractors to hold a state licence or registration - Every janitorial employer with at least one covered janitorial worker must register with the Labor Commissioner and renew annually; must show valid workers' compensation coverage and provide biennial. - which gives Dublin buyers something most states do not: a public record to check before signing.
California janitors and cleaners earn a median of $19.75 an hour per federal wage data, which is the labor floor under every Dublin cleaning quote - labor is roughly the whole cost structure in this trade.
Most states do not license commercial cleaning companies, which surprises buyers who assume there is a board to check. What California does or does not require - and what that means for verifying a Dublin contractor - is set out below, with the state's own source next to it.
Cleaning is labor, and labor is priced locally. What California sets as its wage floor, and what janitors in the state actually earn at the median, explain more of the spread between Dublin quotes than any vendor's sales pitch does.
Put a compliance check out to competing bids before comparing prices
Two free marketplace paths: one request brings back multiple vetted cleaning contractors who know they are competing for the account. Competing bids on identical scope are the only reliable way to learn what your building actually prices at.
External links go to the marketplaces' own sites and forms. This site may earn a referral fee at no cost to you - it never changes the data above, and no individual cleaning company pays to appear in our research.
What California adds to a cleaning contract
| Question | California answer |
|---|---|
| Sales tax on commercial cleaning | No - not taxable - California sales tax applies to tangible personal property, not to service-only janitorial labor, because the true object of the contract is the service. Same for residential and commercial. Rug and carpet cleaning charges are also untaxed; the cleaner pays tax as consumer of its supplies. (Cal. Code Regs. tit. 18, sec. 1501 (Service Enterprises Generally); CDTFA Annotation 360.0180 (Rug and Carpet Cleaners)) |
| Licence or registration required | Yes - Every janitorial employer with at least one covered janitorial worker must register with the Labor Commissioner and renew annually; must show valid workers' compensation coverage and provide biennial sexual harassment prevention training. Contracting with an unregistered provider is itself penalized. (California Labor Commissioner's Office, Division of Labor Standards Enforcement (Department of Industrial Relations)) |
| Public licence lookup | https://cadir.my.salesforce-sites.com/RegistrationSearch |
| Median janitor wage (federal data) | $19.75 per hour |
| State minimum wage | $16.90 |
California is the only state that makes janitorial employers themselves register with the Labor Commissioner under the Property Service Workers Protection Act, and it fines the building owner who hires an unregistered cleaner.
This page is independent research, not legal, tax or insurance advice. Sales-tax treatment, licensing rules, wage floors and contract law vary by state and change - verify current requirements with your state's revenue and labor agencies, and have significant contracts reviewed by your own counsel or broker before signing.
Why California rules move Dublin quotes
Two of the three state variables land directly on your invoice. Sales tax, where a state charges it on cleaning services, is added to every monthly bill - on a mid-size contract that is real money over a year. The wage floor sets the labor cost every bid is built on, which is why identical buildings in different states get materially different quotes. Licensing is the third and it works differently: it does not change the price, it changes what a Dublin buyer can verify before signing.
What this means in Dublin
A certificate of insurance proves someone had coverage on the day it printed. It confers no rights on you, it does not obligate the insurer to notify you if the policy lapses, and the limits shown may already be partly consumed. Ask for the certificate from the broker, name your entity as additional insured, and re-request it at renewal.
This page is independent research, not legal, tax or insurance advice. Sales-tax treatment, licensing rules, wage floors and contract law vary by state and change - verify current requirements with your state's revenue and labor agencies, and have significant contracts reviewed by your own counsel or broker before signing.
Put a compliance check out to competing bids before comparing prices
Two free marketplace paths: one request brings back multiple vetted cleaning contractors who know they are competing for the account. Competing bids on identical scope are the only reliable way to learn what your building actually prices at.
External links go to the marketplaces' own sites and forms. This site may earn a referral fee at no cost to you - it never changes the data above, and no individual cleaning company pays to appear in our research.
Common questions
Is it cheaper to pay hourly or per square foot?
Neither is inherently cheaper; they suit different jobs. Hourly pricing runs $25-$75 per worker per hour and fits small or irregular scopes. Square-foot pricing fits predictable routine work and makes budgeting easier. The only fair comparison is to ask every bidder for the all-in monthly total on identical scope and frequency, then divide.
What does 'bonded and insured' actually mean?
They are two different things and only one behaves like protection. Insurance - general liability, typically $1 million per occurrence, plus workers' compensation - responds to covered claims. A janitorial surety bond covers employee theft but pays only after the employee is criminally convicted, and the cleaning company must reimburse the surety afterward. It is closer to a credit guarantee than to insurance.
How do I compare two very different cleaning bids?
Normalize three things before you look at price: total cleanable square footage, frequency per area, and exactly which specialty services are inside the monthly fee. Most large gaps between bids disappear once those are matched - and the ones that survive are usually explained by staffing model or supervision, which is worth paying for.
Is a certificate of insurance enough proof?
It is a starting point, not proof. The standard certificate states in its own header that it confers no rights upon the certificate holder - it is a snapshot of what was in force the day it was issued, with limits that may already be partly consumed by other claims. Ask the broker to send it directly, have your entity named as additional insured, and re-request it at renewal.
How much does commercial cleaning cost per square foot?
In 2026 industry ranges, general office space runs about $0.09-$0.17 per square foot per month, medical and healthcare $0.14-$0.29, industrial $0.08-$0.20, retail $0.07-$0.15 and schools $0.07-$0.14. Those figures assume a stated frequency - a per-square-foot price without a frequency attached tells you nothing.
Put a compliance check out to competing bids before comparing prices
Two free marketplace paths: one request brings back multiple vetted cleaning contractors who know they are competing for the account. Competing bids on identical scope are the only reliable way to learn what your building actually prices at.
External links go to the marketplaces' own sites and forms. This site may earn a referral fee at no cost to you - it never changes the data above, and no individual cleaning company pays to appear in our research.
Prices in nearby cities
Dunsmuir · East Palo Alto · Eastvale · El Cajon · El Centro · El Cerrito · El Monte · El Paso de Robles (Paso Robles) · El Segundo · Elk Grove · Emeryville · Encinitas