Bath Contractor CheckLook up a bathroom contractor's license before you sign anything

San Mateo bathroom contractor license lookup

San Mateo has 7 bathroom contractors on record, searchable below, A to Z by business name. Use it to confirm a name someone gave you, not just to browse.

Licenses checked · California Contractors State License Board

2.4median years licensed

Licensing snapshot for San Mateo

3 of San Mateo's listed contractors registered in the last two years.

1 of the licenses on San Mateo's list need renewing before long, per the state's own file.

A license close to renewal is not a red flag by itself, but it is a reason to search San Mateo's list again closer to your start date.

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

7 bathroom contractors based in San Mateo, CA

Every bathroom contractor based in {city} with an active state license, A to Z by business name, not a ranked or paid list.

  • Bair Renovations1129808B General BuildingExpires Apr 30, 2028Verify license
  • Burt Remodeling1127264B General BuildingExpires Oct 31, 2026Verify license
  • Gilmans Kitchens And Baths817244B General BuildingExpires Feb 28, 2027Verify license
  • Lopez Remodeling988145B General Building / C-36 PlumbingExpires Oct 31, 2027Verify license
  • Mason Remodeling & Construction1003994B General BuildingExpires May 31, 2027Verify license
  • Probuild Home Remodeling1152844B General BuildingExpires Apr 30, 2028Verify license
  • Valdez Fine Home Remodeling INC1120368B General BuildingExpires May 31, 2028Verify license

How to check a license in California

  1. Open CSLB's Check a Contractor License tool.[1]
  2. Enter the license number, the business name, or a name tied to the license. Numbers here run digits only, never letters.[1]
  3. Read the license status and disciplinary history, plus the workers' compensation and insurance information on file.[2]
  4. When the contractor arrives to bid the job, ask to see their pocket license and a photo ID, and confirm the person matches it.[2]

CSLB Check a Contractor License

Warning signs

  • A bid that lands far below every other one you collected.[2]
  • No current business address on file, only a cell phone number.[2]
  • A blank or partially blank contract or change order.[3]
  • A deposit request above the legal cap without a bond to justify it.[2],[3]

Rules that protect you

  • Contractor bond of 25,000 dollars, covering every job during the life of that bond, not per project.[2]
  • Down payment capped at 10 percent of the contract price or 1,000 dollars, whichever is smaller, with a single exception for a contractor carrying a Blanket Performance and Payment Bond.[2],[3]
  • Written contract required once a job passes 500 dollars combined for labor and materials; changes must also be in writing.[3]
  • Three-day written right to cancel a signed home improvement contract.[3]

3ZIP codes with listings

ZIP breakdown for San Mateo

San Mateo spans 3 ZIP codes with a licensed bathroom contractor on file.

94401 leads that count, holding 3 of them.

A contractor's ZIP on San Mateo's license record is a starting point for confirming their business address, not a guarantee of where they will show up to work.

944019440294403

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

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. How do I find the right licensed contractor?, Contractors State License Board, accessed 2026-09-30
  3. What Should I Look for in a Contract and Binding Agreements?, Contractors State License Board, accessed 2026-09-30