Residential RoofersCheck a roofer's license before you sign anything

Check a roofer's license in San Dimas, CA

10 licensed residential roofers are based in San Dimas, CA. Search the list below, then check California's verification steps if you're comparing a bid from somewhere else.

Licenses checked · California Contractors State License Board

24median years licensed

License records for San Dimas

0 of San Dimas's roofing licenses hit their expiration date within the next 90 days from our last check.

An expired license can still show up in a San Dimas search after it lapses, so the date matters as much as the name.

Confirm the expiration date directly on California's own lookup before you sign in San Dimas.

Data: California Contractors State License Board license records, checked 2026-09-30.

Search 10 licensed residential roofers based in San Dimas

Listed A to Z by business name. Search by name or license number; this isn't a ranking.

  • American Services Group Of California INC769061C-39 RoofingExpires Sep 30, 2027Verify license
  • C & C Roofing709658C-39 RoofingExpires Jul 31, 2027Verify license
  • Cabral Roofing & Waterproofing Corporation746649C-39 RoofingExpires Mar 31, 2028Verify license
  • Ces Roofing998787C-39 RoofingExpires Jan 31, 2028Verify license
  • Homeowners Friend Roofing942816C-39 RoofingExpires Jan 31, 2028Verify license
  • Northwood Roofing INC999546C-39 RoofingExpires May 31, 2027Verify license
  • P H Roofing851584C-39 RoofingExpires Dec 31, 2026Verify license
  • Preferred Roofing777824C-39 RoofingExpires Apr 30, 2028Verify license
  • The M & M Construction Group772942B General Building / C-39 RoofingExpires Nov 30, 2027Verify license
  • Wiltshire Urethane Foam Company1008304C-39 RoofingExpires Oct 31, 2027Verify license

How to check a license in California

  1. Search using the license number, the business name, or the name of whoever qualifies the license.[1]
  2. Confirm the classification reads C-39, the roofing classification, rather than relying on a general "B" license for a single-trade roof job.[2]
  3. Check that workers' compensation is shown on file; C-39 roofers must carry it whether or not they have employees.[2]
  4. Review the license's status and any disciplinary history displayed on the same result page.[1]

CSLB Check a Contractor License

Warning signs

  • A license status that reads inactive, revoked, or suspended, or a business name that doesn't match your bid.[1]
  • No pocket license or photo ID offered when someone arrives to give you a bid in person.[3]
  • A deposit bigger than the state's own cap, the smaller of a tenth of the job's price or $1,000, without a bond on record to explain the extra.[4]
  • Pressure to waive or rush past your three-day right to cancel after signing.[4]

Rules that protect you

  • California requires a $25,000 bond for a C-39 license, on top of mandatory workers' compensation coverage for every C-39 roofer.[2]
  • Any roofing job with combined labor and materials of $500 or more requires a C-39-licensed contractor by law.[2]
  • A written contract is required for home improvement work over $500, with a right to cancel within three days of signing.[4]

Storm risk near San Dimas

FEMA's county-level hazard data rates hail risk near San Dimas as Relatively Moderate.

Hail is one of the two most common reasons a roofer knocks on a San Dimas door uninvited, according to insurance-industry fraud warnings.

That's exactly the moment to check a license instead of signing on the spot in San Dimas.

Hail
Relatively Moderate
Strong wind
Relatively Moderate
Wildfire
Very High

Data: FEMA, National Risk Index for Natural Hazards - County-level table, v1.20 (v1.20, December 2025).

Check other cities in California

All cities in California →

Sources

  1. Check a Contractor License or Home Improvement Salesperson (HIS) Registration, Contractors State License Board, accessed 2026-09-30
  2. Roofing Contractor (C-39) Licensing Classification, Contractors State License Board, accessed 2026-09-30
  3. How do I find the right licensed contractor?, Contractors State License Board, accessed 2026-09-30
  4. What Should I Look for in a Contract and Binding Agreements?, Contractors State License Board, accessed 2026-09-30