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How to Choose an Epoxy Floor Installer in Santa Rosa (and Check a CSLB License)

By the Santa Rosa Epoxy Floors team · Updated 2026-10-24 · 4 min read

Santa Rosa Epoxy Floors is a referral service, not a contractor. This guide is general information. Your installer will assess your specific floor.

The installer you choose matters more than the brand of coating. A skilled, licensed installer with a solid prep process will usually deliver a better floor than a cheaper crew cutting corners. This guide shows Santa Rosa homeowners how to check a contractor's license with the state, which license types fit floor coating work, and what to look for in the contract.

About us: Santa Rosa Epoxy Floors is a referral service, not a contractor. We don't install floors. The installer you hire is responsible for their own license, insurance, estimate and work. Always verify a license yourself before you sign.

Step 1: Confirm a license is required (it almost always is)

In California, the Contractors State License Board (CSLB) says a business or individual must be licensed if the project needs a building permit, uses additional workers, or the total cost of labor and materials is $1,000 or more (CSLB; B&P Code § 7048). The small-job exemption doesn't apply to anyone who advertises themselves as a contractor or employs helpers. In practice, a professional garage floor coating job will need a licensed contractor.

Step 2: Look up the license on CSLB's website

Use CSLB's Check a License tool. You can search by license number, business name or person's name. Ask the installer for their license number. Legitimate contractors share it readily, and California requires it on home improvement contracts. On the license detail page, check:

Status: is the license active?
Business name and address: do they match the company quoting you?
Classifications: does the license cover floor coating work? See Step 3.
Bonding and workers' compensation: the page shows bond information and workers' comp coverage or exemption. If a crew will work at your home and the license shows an exemption from workers' comp, ask why.
Complaint disclosures: CSLB discloses certain complaints and legal actions. Read any that appear.

If a salesperson rather than the contractor sells you the job, CSLB's tool also lets you check their Home Improvement Salesperson (HIS) registration.

Step 3: Check the license classification

California licenses specific trades. Several CSLB classifications can relate to epoxy and resinous floor coatings:

C-61/D-12, Synthetic Products. CSLB's description expressly includes "resin and epoxy application" (CSLB D-12). This is the classification that names epoxy directly.
C-15, Flooring and Floor Covering. Covers preparing surfaces and installing flooring materials "established as flooring and floor covering material" (CSLB C-15). CSLB's C-15 exam outline includes concrete treatment and synthetic application.
C-33, Painting and Decorating. Covers preparing surfaces and applying paints and similar materials "which adhere by evaporation" (CSLB C-33). Many floor coating companies hold this license. Whether it fits a particular resin system can depend on the product.
B, General Building. Under B&P Code § 7057, a general building contractor generally can't take a prime contract for a single specialty trade unless the job involves at least two unrelated trades (not counting framing or carpentry), or they hold the right specialty classification, or they subcontract the work to an appropriately licensed contractor. A garage floor coating on its own is a single-trade job.

If you're unsure whether a license covers your project, ask the installer to explain, or contact CSLB directly.

Get free quotes from a local installer

Step 4: Get a written contract (required over $500)

CSLB says a written contract is required for home improvement projects over $500 (CSLB). The contract should include:

The contractor's name, business address and license number.
A detailed description of the work and materials: prep method, products for each coat, flake coverage, square footage.
A written payment schedule. Payments can't exceed the value of work completed, except the down payment.
Start and completion dates.
Any warranty, in writing.
Your right to cancel, as required by law.

Any change in scope or price should be a signed, written change order.

Step 5: Know the down payment rule

For a home improvement job, California limits the down payment to $1,000 or 10% of the contract price, whichever is less (CSLB). CSLB notes there's no exception for special-order materials. Be cautious of anyone asking for more up front.

Step 6: Ask the right questions

How will you prepare my floor, and will you test for moisture? (See our prep guide.)
What products go in each coat, and how thick? (Compare epoxy vs. polyaspartic.)
Can I see photos of floors you installed yourself, ideally local ones?
Can I speak with a couple of recent customers?
Who will do the work: your own crew or subcontractors?
What does the warranty cover and exclude (hot tire pickup, moisture, peeling)?
When can I walk on it, and when can I park on it?
Do you carry general liability insurance, and can you send a certificate?

Red flags

Won't give a license number, or the license is inactive or in another name.
Asks for a down payment above the legal limit.
Pressure to sign today for a "special price."
Vague quotes that don't say how the floor will be prepared.
Cash-only with no written contract.

Comparing installers fairly

Get more than one quote if you can, and compare what's included, not just the total. Our cost factors guide has a line-by-line checklist. Look at online reviews across more than one platform, and read the detailed ones rather than just the star rating.

Request a quote

We connect homeowners in Santa Rosa, Rohnert Park, Windsor and Healdsburg with an independent local floor coating installer. Requesting a quote is free and there's no obligation, and you should still run the checks above before you sign anything. Learn more about how our referral service works.

Common questions

Is a painting (C-33) license enough for an epoxy floor?

Many floor coating companies hold a C-33 license, but CSLB's C-61/D-12 Synthetic Products classification is the one that expressly names resin and epoxy application. If you're unsure whether a license covers your job, ask CSLB.

Does Santa Rosa Epoxy Floors check licenses for me?

We ask participating installers to hold an active license, but we're a referral service, not a contractor, and you should always verify the license yourself at cslb.ca.gov before signing.

How much can an installer ask for up front?

For a California home improvement contract, the down payment can't exceed $1,000 or 10% of the contract price, whichever is less, according to CSLB.

Related guides

Sources

Figures from outside sources are national estimates as published by those sources on the dates shown and may not reflect Sonoma County pricing.