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

Bathroom contractors licensed in Castro Valley, CA

Before you sign anything in Castro Valley, CA, search the 9 bathroom contractors we have on file for it. Every result links back to the state's own record.

Licenses checked · California Contractors State License Board

12median years licensed

What Castro Valley's license record shows

The oldest license among Castro Valley's bathroom contractors dates to 1990.

Castro Valley's median time licensed is 12 years.

56% have held a license for a decade or longer, one data point worth weighing alongside whatever a search turns up.

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

Search bathroom contractors based in Castro Valley, A to Z

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

  • AAA Plumbing & Remodeling INC1052769B General Building / C-36 PlumbingExpires Jun 30, 2027Verify license
  • Elite Home Remodeling970250B General BuildingExpires Feb 29, 2028Verify license
  • Emilio Forni Construction & Remodeling736135B General BuildingExpires May 31, 2027Verify license
  • J&V Pro Construction And Remodeling1141138B General BuildingExpires Jul 31, 2027Verify license
  • New Generation Construction & Remodeling INC1000571B General BuildingExpires Mar 31, 2028Verify license
  • Ocean Remodel INC1120751B General BuildingExpires May 31, 2028Verify license
  • Pacific Bay Remodeling1076321B General BuildingExpires May 31, 2027Verify license
  • Renovations Plus857337B General BuildingExpires Nov 30, 2027Verify license
  • Ric Kitchen + Bath Showroom602812B General BuildingExpires Sep 30, 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

Where Castro Valley's licenses are concentrated

Across Castro Valley's 3 covered ZIP codes, 94546 carries the largest concentration at 6 listed contractors.

Search results for Castro Valley are not filtered by ZIP, so a name search will find a contractor from any of them.

945429454694552

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

More California license lookups

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