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Windows & doors in Castro Valley, CA

5 windows & doors listed in Castro Valley, California. 5 with a phone number and 4 with a website.

Castro Valley accounts for 0% of the windows & doors listed in California and ranks #188 among California cities for windows & doors.

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Quick answer

Castro Valley, CA has 5 windows & doors listed on USA Business Search. 5 list a phone number and 4 list a website. The most listings are in ZIP codes 94546.

Updated October 2026

How to choose a window company in Castro Valley

  • Get two or three written quotes that list materials, labor and cleanup.
  • Ask for proof of liability insurance and, for bigger jobs, workers' comp.
  • Never pay the full price up front. Tie payments to finished stages of the work.

Check the license: Contractors State License Board (CSLB). In California, most home improvement work above the state's small-job limit requires a CSLB license. Look the number up before you sign, and check that it is active and bonded.

Common questions

How many windows & doors are listed in Castro Valley, California?

USA Business Search shows 5 windows & doors in Castro Valley. 5 list a phone number and 4 list a website.

Which ZIP codes do these listings cover?

They include ZIP codes 94546.

How do I choose a window company in Castro Valley?

Get two or three written quotes that list materials, labor and cleanup. Ask for proof of liability insurance and, for bigger jobs, workers' comp. Check the license with the Contractors State License Board (CSLB).

How do windows & doors in Castro Valley compare with the rest of California?

Castro Valley has 0% of the 3,097 windows & doors listed in California, which ranks #188 among California cities for this category.

How do I add or fix a listing?

Listings are free. Use Add your business, or the Claim or fix link on any listing.

More home services in Castro Valley

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