After the 2017 Tubbs Fire, dozens of unlicensed contractors flooded Sonoma County — some coming from out of state — looking to capitalize on desperate homeowners trying to rebuild. Stories of incomplete work, disappeared contractors, and failed inspections were common. That experience is an extreme version of what can happen anytime homeowners hire the wrong contractor for a roofing project.
Here's a practical guide to protecting yourself when hiring a roofer in Sonoma County.
Step 1: Verify the CSLB License
Every legitimate roofing contractor in California must hold an active license from the California Contractors State License Board (CSLB). For roofing work, the relevant classifications are C-39 (Roofing) and C-43 (Sheet Metal). You can verify any contractor's license at the CSLB website — check that it's active, bonded, and carries workers' compensation coverage.
Sutter Roofing Systems holds CSLB license #1137426, including C-43 Sheet Metal classification. Never hire a contractor who can't provide their license number or who asks you to pull permits yourself (that shifts liability to you).
Step 2: Confirm Insurance
A licensed contractor isn't enough — they must also carry:
- General liability insurance — covers property damage if something goes wrong
- Workers' compensation insurance — covers crew injuries on your property (without this, you could be liable)
Request certificates of insurance directly from the contractor's insurer — don't just accept a certificate they hand you, as these can be falsified. Call the insurer to confirm the policy is active.
Step 3: Ask About Warranties
A reputable roofing contractor stands behind their work. Ask specifically:
- What workmanship warranty do you provide, and what does it cover?
- What manufacturer warranty comes with the materials?
- Is the warranty transferable if I sell the home?
At Sutter Roofing, we offer written workmanship warranties of 3, 5, or 10 years. As a GAF-certified contractor, we can provide manufacturer warranties up to 50 years — including the GAF Golden Pledge Limited Warranty — that are transferable to new homeowners, something unlicensed or non-certified contractors cannot offer.
Step 4: Get Multiple Written Estimates
We recommend getting at least three written estimates before committing. Beware of:
- Significantly low bids — these often indicate cut-rate materials, unlicensed labor, or incomplete scope
- Vague line items — a legitimate estimate should specify the exact shingles, underlayment, and accessories being used
- High-pressure tactics — "this price is only good today" is a red flag
| Material | Typical Cost Range (Installed) | Lifespan |
|---|---|---|
| Asphalt Shingles | $5.50–$9.50/sq ft | 20–30 years |
| Metal Roofing | $10–$20/sq ft | 40–70 years |
| Clay/Concrete Tile | $14–$26/sq ft | 50+ years |
Step 5: Check References and Reviews
Ask for references from projects completed in the last 12 months — not just the best jobs from years ago. Look for Google Reviews (check that they're not all from one date range, which can indicate purchased reviews). The BBB is another resource — Sutter Roofing Systems is a BBB Accredited Business with a verified track record.
What to Ask Before Signing
- Who will be on-site managing my project day-to-day?
- Will you use subcontractors, and are they licensed and insured?
- How do you handle unexpected issues (rotted decking, code requirements)?
- What does your cleanup process look like?
- How do you handle rain delays?
Request a free roof inspection from Sutter Roofing Systems — we'll give you an honest assessment of your current roof and a transparent written estimate. No pressure, no bait-and-switch.
