Plumbers in Castro Valley, CA
7 plumbers listed in Castro Valley, California. 7 with a phone number and 4 with a website.
Castro Valley accounts for 0% of the plumbers listed in California and ranks #214 among California cities for plumbers.
Sponsored
Quick answer
Castro Valley, CA has 7 plumbers listed on USA Business Search. 7 list a phone number and 4 list a website. The most listings are in ZIP codes 94546, 94552.
Updated October 2026Featured · Aging Safely Baths & Showers4Less
Get an accurate bathroom quote in Castro Valley
Shower replacements, walk-in tubs, roll-in showers and full remodels, installed by factory-certified installers. Tell us about the project, or call and talk to a real person.
Smart Choice Plumbing
Greer Family Plumbing
Absolute Plumbing
Active Plumbing and Rooters
Baek's Plumbing and Rooter
Mr Rescue Plumbing & Drain Cleaning
Shopping for the shower itself?
Steam showers, barrier-free units, Made-in-USA Bestbath systems, saunas and cold plunges. Free shipping on everything at Showers4Less.
How to choose a plumber in Castro Valley
- Ask whether the quote is flat-rate or hourly, and whether there is a trip charge.
- For water heaters and re-pipes, ask about permits and inspections.
- Ask what the warranty covers and for how long.
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 plumbers are listed in Castro Valley, California?
USA Business Search shows 7 plumbers in Castro Valley. 7 list a phone number and 4 list a website.
Which ZIP codes do these listings cover?
They include ZIP codes 94546, 94552.
How do I choose a plumber in Castro Valley?
Ask whether the quote is flat-rate or hourly, and whether there is a trip charge. For water heaters and re-pipes, ask about permits and inspections. Check the license with the Contractors State License Board (CSLB).
How do plumbers in Castro Valley compare with the rest of California?
Castro Valley has 0% of the 5,377 plumbers listed in California, which ranks #214 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.
How much does a bathroom remodel cost in Castro Valley?
It depends on the scope. Shower pans can start under $2,000, and many installed walk-in tubs start around $15,000, while national brands often run $25,000 to $30,000 installed. For an accurate number, call Aging Safely Baths at 1-888-779-2284 or request a quote.
More home services in Castro Valley
Plumbers nearby
Own one of these businesses? Claim your free listing or see what an optimized listing adds.