How to Choose a Roofing Contractor: Avoid Scams & Find the Best
Your roof is a 30-year investment, but hiring the wrong contractor can turn it into a money pit. With 1 in 5 roofing projects involving scams or subpar work, knowing how to choose a roofing contractor isn’t just smart—it’s essential. Here’s your step-by-step guide to vetting roofers like a pro.
5 Red Flags When Hiring a Roofer
1. No Physical Address or Local Reviews
Fly-by-night contractors often use PO boxes. Verify their office via Google Street View and check for 10+ local reviews on Google My Business.
2. Pressure to Pay Upfront
Legitimate contractors like GAF Master Elite pros rarely demand full payment before work begins.
3. “Storm Chaser” Tactics
Unsolicited door-knocking after bad weather? Verify their track record via the Better Business Bureau.
4. No Written Estimate
Always insist on a line-item quote. Vague proposals hide hidden fees.
5. Lack of Manufacturer Certifications
Top brands like Owens Corning and CertainTeed certify contractors who meet strict standards.
7 Questions to Ask Before Signing a Contract
- “Are you licensed and insured?”
- Ask for license numbers and verify them via your state licensing board.
- Confirm general liability ($1M+) and workers’ comp insurance.
- “Can you provide references from the past year?”
- Call 2–3 recent clients and ask about cleanup, timelines, and communication.
- “What warranties do you offer?”
- Look for at least 10-year workmanship warranties and manufacturer-backed material guarantees (e.g., IKO’s Golden Pledge).
- “Will you handle permits?”
- Reputable contractors handle permits; if not, it’s a red flag.
- “Who’s doing the work—employees or subcontractors?”
- Subcontractors increase liability. DaVinci Roofscapes certified installers use in-house crews.
- “How do you handle unexpected repairs?”
- Rotting decking or structural issues? Get a written change order process.
- “Are you certified by any manufacturers?”
- Certifications like GAF Master Elite or Owens Corning Platinum signal advanced training.
How to Verify Licenses, Insurance & Warranties
Licenses
- Search your state’s licensing database (e.g., CSLB for California).
- Confirm the license is active and matches the contractor’s business name.
Insurance
- Request certificates of insurance (COI) for general liability and workers’ compensation.
- Call the insurer to confirm policies are current.
Warranties
Type | What’s Covered | Top Providers |
---|---|---|
Workmanship | Installation errors | Contractor-specific (min. 10 years) |
Material | Defective shingles/underlayment | GAF, CertainTeed |
Extended | Full system (decking, ventilation) | Owens Corning |
3 Steps to Finalize Your Choice
- Compare Bids
- Get 3+ quotes. Prices vary by 40%+ for the same scope.
- Watch for lowball bids—they often cut corners.
- Check Supplier Relationships
- Contractors with accounts at SRS Distribution get bulk pricing, saving you 10–15%.
- Review the Contract
- Ensure it includes start/end dates, payment schedule, and warranty details.
Need a Vetted Contractor?
USA Supplies connects homeowners with licensed, insured roofers certified by top manufacturers.
Have a contractor horror story or success tip? Share below to help others learn!