Why nobody gives you a straight answer online
Licensing for coating work is set by the state. Cities and counties often add rules on top. And the rules do not resemble each other at all. Four different models are in use around the country.
- Trade licensing. The state licenses flooring, painting or coating work directly. You need it no matter the job size.
- Threshold licensing. No license below a dollar value per job. Required above it. The threshold varies a lot.
- General contractor licensing only. No special license for coatings. But a general contractor license kicks in above some size.
- Registration instead of licensing. No exam. You register as a contractor, carry insurance, and often post a bond.
Cities often want their own business license too, whether or not the state wants a trade license. And the rules change. That is why this page does not list rules by state. A list like that goes stale quietly. A confident wrong answer here is worse than no answer.
Six questions to ask your state board
One phone call settles this. Call your state board. Not a forum. Not a Facebook group. Not a page like this one. Ask:
- Does coating work need a license here, and under what classification? The classification matters. Coating sometimes sits under painting. Sometimes flooring. Sometimes neither.
- Is there a dollar threshold? Does it count labor only, or labor plus material? Almost always both. So the threshold arrives sooner than people expect.
- Does the threshold apply per job or per contract? This decides how phased work gets treated.
- Do I need a bond, and for how much? A bond is often required even where a trade license is not.
- What insurance has to be on file, and with who? Some states want the certificate filed with the board, not just held by you.
- Do any cities or counties near me add their own rules? The board will often tell you. If not, call the cities you work in.
Write the answers down with the date and who told you. The rules change. A dated note is what you want when something comes up two years later.
The paperwork past the license
The license is one item on a longer list. Some of the rest will stop you quoting work well before the state does.
Insurance
General liability is the baseline. Workers comp becomes required in most states the day you have an employee, and the meaning of employee is wider than people expect. Commercial auto if the truck is in the business name.
Here is the part that gets missed. A lot of commercial and property management work will not let you quote at all without a certificate of insurance. Insurance is not only protection. It is access to a whole category of customer.
Silica dust
You grind concrete. That makes silica dust, so federal rules apply no matter what your state does about licensing. Handing out masks is not enough. You need a written exposure plan, dust extraction on the grinder, respirator fit testing, and training records.
Worth being blunt. This is a health thing before it is a paperwork thing. The paperwork is how you prove you took it seriously.
Signing up and tax
Entity registration, an EIN, and sales tax in states that tax coating work. Some do. Some do not. Some tax the material but not the labor. Your accountant will know. Ask before your first invoice, not after your first twenty.
Commercial work asks for more
Move from home garages into commercial floors and the rules stack up fast. They come from the customer as much as the state.
- Higher insurance limits, often with the customer named on the policy.
- Prequalification paperwork and safety records. Sometimes an EMR rating.
- A bond on bigger contracts, and on public work almost always.
- Prevailing wage on public jobs. That changes your labor cost, and so your price.
- Site safety plans, written training records, and sign in rules.
None of that is a reason to avoid commercial work. It is a reason to price it differently. The paperwork is a real cost. It belongs in your overhead, and so it belongs in the price you charge.
This page is not legal advice, and it names no state rules on purpose. License rules, thresholds and bond amounts change. A stale list would be worse than nothing.
Call your own state board and your own city. It takes about an hour. It is also the one item on a startup list where being wrong can cost you work you already finished.
Keep the paperwork where the jobs are
A small practical point that saves real time once you are running.
Licenses renew. Insurance certificates expire, usually every year, and a commercial customer will ask for a current one at the worst moment. Fit testing and training records carry dates. None of this is hard. All of it goes wrong when it lives in three places. A filing cabinet, an email thread, and somebody’s phone.
Keep renewal dates somewhere that warns you before they lapse. Keep the certificates somewhere you can send one from a job site, without driving back to the office. A shop on one system for the whole business gets that for free. A shop on a notebook and a group text hunts for the same PDF every few months.
Compliance material, included with the partnership
Resinwerks partners get OSHA and silica compliance kits along with the software and the Profit-Stack pricing system. Free, because you buy the resin. It does not replace your own licensing check with your state, but it is one less thing to build from scratch.
Get the software free with ResinwerksCoatHQ is free to active Resinwerks partners. You buy the resin. No subscription and no platform fee. Resinwerks makes its money on resin, not on software.
Common questions
Do you need a license to do epoxy flooring?
It depends on your state and often your city. There is no national answer. Some states license flooring or coating work directly. Some require a license only above a dollar threshold per job. Some want no trade license at all but still want business registration, a bond and proof of insurance. Check with your own state licensing board before you quote work. In some states, working unlicensed where a license is required can cost you the legal right to collect on a floor you already finished.
What is a contractor license threshold?
Many states only require a contractor license once a single job goes over a set dollar value, counting labor and material together. Below it you can work unlicensed. Above it you cannot. Two things catch people out. The threshold usually counts the whole contract, not just labor. And splitting one job into two invoices to stay under it is normally treated as evasion rather than clever paperwork.
Do I need a license for residential garage floors?
Same answer, and it usually turns on job value rather than the room. A residential garage is often small enough to sit under a state threshold where one exists, which is why plenty of coating shops start on residential work. Do not rely on that without checking. Thresholds differ a lot, and some states license by trade no matter the size.
What else do I need besides a license?
In practice: business registration, an EIN, general liability insurance, workers compensation once you have employees, commercial auto if the vehicle is in the business name, sales tax registration in states that tax your work, and a written silica exposure plan because you grind concrete. Commercial and property management customers will also want a certificate of insurance before they let you quote, so insurance is a sales requirement too.
What happens if I work without a required license?
It varies by state and it can get serious. Fines are the obvious one. The sharper risk is that some states bar an unlicensed contractor from using the courts to collect on a contract, which means a customer can legally refuse to pay for finished work. Insurance claims can get contested too. This is the one item on a startup checklist where being wrong can unwind work you already did.