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 Michigan charges in sales tax, whether it licenses cleaning companies at all, and what its wage floor does to Gibraltar 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.
Whether a cleaning invoice carries sales tax depends entirely on the state, and a minority of states do tax cleaning services - in those states it adds several percent to every monthly bill a Gibraltar business pays, which is why the contract price is not the whole price.
Most states do not license commercial cleaning companies, which surprises buyers who assume a board exists to check - in Gibraltar that means insurance certificates, a written scope and real references do the verifying that a licence would elsewhere.
Michigan janitors and cleaners earn a median of $17.33 an hour per federal wage data, which is the labor floor under every Gibraltar cleaning quote - labor is roughly the whole cost structure in this trade.
Cleaning is labor, and labor is priced locally. What Michigan sets as its wage floor, and what janitors in the state actually earn at the median, explain more of the spread between Gibraltar quotes than any vendor's sales pitch does.
The federal rules for cleaning contractors are thin; the expensive differences are state-level. Whether Michigan charges sales tax on cleaning services, whether it licenses cleaning contractors at all, and what its wage floor does to labor cost are the three that show up in a Gibraltar quote. All three are below with official sources.
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 Michigan adds to a cleaning contract
| Question | Michigan answer |
|---|---|
| Median janitor wage (federal data) | $17.33 per hour |
| State minimum wage | $13.73 |
Michigan's minimum wage is on a legislated step-up, sitting at $13.73 in 2026 and scheduled to jump to $15.00 on January 1, 2027, so multi-year janitorial contracts priced on today's labor cost face a built-in increase.
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 Michigan rules move Gibraltar 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 Gibraltar buyer can verify before signing.
What this means in Gibraltar
The most expensive cleaning contract is the one that renews itself. The common evergreen clause continues the agreement for successive twelve-month periods with no 'unless you give notice' language attached - so a Gibraltar building that misses the 30-day window has bought another full year at whatever the new rate is.
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
How much does office cleaning cost per month?
For a small office cleaned three times a week, published ranges start around $100-$250 a month at the smallest sizes and run to $250-$800 for a few thousand square feet, with larger spaces at $350-$1200 and up. Restroom count, floor type and whether consumables are included move these more than most buyers expect.
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.
Do I have to pay sales tax on cleaning services?
That depends entirely on your state - most states do not tax cleaning services, but a minority do, and in those states it is a real line on a real invoice: at typical rates it adds several percent to every monthly bill. This site publishes the treatment state by state with the revenue department's own source; check your state's page.
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 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.
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.
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