Before you sign · Walnut Creek area
How to Choose a Garage Floor Coating Installer
Check the CSLB license, keep the deposit small, and make every quote spell out the prep method, moisture test, product system and warranty exclusions. Those four lines separate a floor that lasts from one that peels.
Talk it through with a local coating pro:
(925) 722-6420
BAY 01License
Start with the license
California requires a CSLB license for jobs over $1,000 in labor and materials (raised from $500 on January 1, 2025) (CSLB bulletin). Floor coating can fall under more than one license classification, so don’t get hung up on a single code: confirm the license is active, the name matches the contract, and ask what the classification covers.
- Look up the license by name or number at CSLB’s license check.
- Confirm the business name and license number on the written contract.
- Ask whether the crew are employees or subcontractors, and who is on site.
Payment and contract basics
CSLB’s guidance is to keep the down payment to 10% of the contract price or $1,000, whichever is less, and to get everything in a written contract (CSLB). Pay progress payments only for work completed.
BAY 02Quote checklist
What every quote should say
- Prep method: diamond grinding, with edges hand-ground
- Moisture test method, the reading, and the plan if it’s high
- Crack, spall and joint repair, and how joints are handled
- Product system by name: primer, base, flake, topcoat
- Film build or number of coats
- Flake coverage: full broadcast or partial
- Stem walls included or not
- Return-to-service time for walking and parking
- Warranty length, what it covers, and every exclusion
BAY 03Red flags
Walk away from these
- Acid etching as the only prep on a pro system
- No moisture test, or “we never need one”
- A “lifetime” warranty that excludes moisture and hot tires
- Can’t name the products or show a data sheet
- Large cash deposit or pressure to sign today
- One-coat “epoxy” at a price far below every other quote
BAY 04Who installs
Franchise or local independent?
Both install good floors. The difference is mostly in how the business runs.
| National franchise | Local independent | |
|---|---|---|
| Products | Usually one proprietary system | May choose among several manufacturers |
| Warranty | Often backed by the brand | Backed by the business itself |
| Pricing | Standardized packages | More case by case |
| What to check | The local owner’s license and crew | Years under the same license, product data |
Low-VOC rules in the Bay Area
The Bay Area Air Quality Management District caps volatile organic compounds in architectural coatings. Under Regulation 8, Rule 3, floor coatings are limited to 100 grams per liter, the same as concrete and masonry sealers and primers, while industrial maintenance coatings are allowed 250 g/L (Table 2, in effect since January 1, 2011) (BAAQMD Reg. 8-3). Ask what category the products are sold under and check the VOC figure on the label or safety data sheet.
Related: what it should cost · what good prep looks like · contact
BAY 05Request
Prefer to send the details?
Fill in what you know. A local installer can call to ask about the slab, confirm measurements and set a time to see it.
Or call (925) 722-6420.
FAQStraight answers
Hiring questions
How many quotes should I get?
Two or three is plenty if you compare them on the same items: prep method, moisture test, repairs, product system, topcoat, return-to-service time and warranty terms. A cheaper quote that skips grinding or testing isn’t comparable.
Is a lifetime warranty on a garage floor real?
Read the exclusions. Many long warranties exclude moisture-related failures, hot-tire marks or “normal wear,” which are the main ways floors fail. A shorter warranty that covers delamination clearly can be worth more.
Do garage floor installers need a license?
For jobs over $1,000 in labor and materials, yes, a CSLB license is required (CSLB). More than one classification can apply to coating work, so check that the license is active and ask what it covers.
Sources
- CSLB — Check a license
- CSLB — AB 2622 implementation bulletin — $1,000 licensing threshold from January 1, 2025
- Contractors State License Board (CSLB) — consumer guidance on contracts and down payments
- BAAQMD Regulation 8, Rule 3: Architectural Coatings — VOC limits, Table 2