Guides · Published October 2026

How to Choose a Water Damage Contractor in Marin (and Check a CSLB License)

After a storm or a burst pipe, you need help fast, and that's exactly when homeowners are most vulnerable to poor workmanship or scams. The good news: you can vet a contractor in about 15 minutes, even under pressure. Here's how.

Understand the two phases of water damage work

Water damage jobs often have two parts:

  1. Mitigation: emergency extraction, removing wet materials and drying. This is about stopping the damage from getting worse.
  2. Reconstruction: replacing drywall, flooring, cabinets and finishes. This is construction work.

Some companies do both, others only one. Either way, ask exactly what they'll do and whether any part will be subcontracted.

Step 1: Check the license on the CSLB website

In California, most construction work requires a license from the Contractors State License Board (CSLB). Use the free CSLB license check to search by license number, business name or person's name. Look at:

CSLB's Hire a Licensed Contractor section has more consumer guidance, including publications you can download. CSLB also sets rules on when a license is required and on limits for down payments on home improvement contracts. Check CSLB's current guidance for the specifics.

Step 2: Ask about insurance and certifications

Ask for a certificate of liability insurance, and call the insurer to confirm it's current. Many restoration companies follow industry training standards (for example, IICRC certification for water damage restoration technicians). Certifications aren't a substitute for a license, but they show training. Ask for the certificate rather than taking a logo on a website at face value.

Step 3: Get the scope in writing

A good contractor will provide:

Step 4: Watch for red flags

The California Department of Insurance's guide Don't Get Scammed After a Disaster (in its Residential Series) is worth reading. Common red flags include:

Step 5: Ask good questions

Marin-specific considerations

Older homes. Many homes in San Rafael, San Anselmo, Ross and Mill Valley were built before 1978, which means lead paint is possible, and older materials may contain asbestos. Ask how the contractor tests for and handles these before demolition.

Hillside access. Steep driveways and stairs in Mill Valley, Sausalito, Tiburon and Belvedere can affect how equipment gets in. Ask whether that changes the timeline or cost.

West Marin distance. For Stinson Beach and West Marin, ask about travel time and whether the company can return regularly to check drying.

What a written contract should include

Before work moves from emergency drying into repairs, ask for a written contract. At a minimum, look for the contractor's name, address and license number matching CSLB's records; a clear description of the work and materials; the start date and approximate completion; the total price or how pricing is calculated; a payment schedule tied to completed work; and how change orders will be handled. CSLB's consumer publications, available through its Hire a Licensed Contractor section, explain what California home improvement contracts should contain and the rights you have, including cancellation rights in some situations. Don't let urgency push you into signing a contract you haven't read. Drying can begin under a limited mitigation agreement while you review the larger repair contract.

How our referral service fits in

We're a lead-generation service: we connect Marin homeowners with independent local providers. We don't do the work ourselves, and you should still check any provider's license and insurance yourself using the steps above. To get started, submit a request or read our guide to the first 24 hours after water damage.

Frequently asked questions

How do I check a California contractor's license?

Use the free CSLB license check at cslb.ca.gov to see status, classification, bond, workers' comp and certain complaint information.

What classification should a water damage contractor have?

It depends on the work; general building (B) and specialty classes like plumbing or drywall are common. Ask what parts are subcontracted.

Is IICRC certification required?

It's an industry training credential, not a California license. Ask for the certificate.

Can I cancel a contract I signed after a storm?

California law provides cancellation rights in some situations. Check CSLB's consumer guidance or consult an attorney.

Should I pay in cash?

Avoid large cash payments. Pay by check or card and tie payments to completed work.

Can the same company do drying and repairs?

Yes, if properly licensed, but you can also choose different companies.

Need help? Submit a request and we'll connect you with an independent local provider. Marin Water Damage is a referral service and doesn't perform the work itself.

This article is general information, not legal, insurance or medical advice. Sources are linked in the text.

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