Castro Valley, CA
5 plumbers in Castro Valley, California, with Google ratings, hours and websites where the business has them.
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Plumbers
Castro Valley, CA4.8(47)Website
Plumbers
Castro Valley, CA4.6(9)Website
Plumbers
Castro Valley, CA3.9(8)Website
Plumbers
Castro Valley, CAWebsite
5 of 5 shown. Recommended businesses first, then businesses that have claimed their profile, then Verified ones, then by Google rating and review count. Use Sort to see highest rated first.
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5 plumbers serve Castro Valley, CA. 2 are rated 4.5 or higher on Google. 5 have a website. Most common services: Gas water heaters, Heat pump water heaters, Tankless water heaters, Water heater installation, Water heater repair.
How Google categorizes plumbers in Castro Valley
Primary and secondary categories from each business’s Google Business Profile. Tap one to filter the list.
Services plumbers in Castro Valley list on Google
Service names as each business entered them on its Google Business Profile, with how many businesses list each one.
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Up to 2 businesses can hold a sponsored spot in Castro Valley, CA. A sponsored business sits above the regular results with a Sponsored tag; it never changes how other businesses are ranked.
Page One Partner Research
| Plumbers | CA | U.S. |
|---|---|---|
| Average Google rating (10+ reviews) | 4.71 | 4.62 |
| Median Google reviews | 30 | 32 |
| Reviews for the top quarter | 120+ | 128+ |
| Have a website | 73% | 71.2% |
Businesses listed in our directory, not every business in the market. Updated November 2026. Plumbers industry report · What is a good rating for plumbers? · Best cities for plumbers
From Page One Partner Research
Quick answers
Names and Google ratings, straight from each business's profile.
5 plumbers serve Castro Valley, CA. First on the list: Harris Water Heaters (Verified, rated 4.2 on Google from 89 reviews), Alligator Plumbing (Verified, rated 4.8 on Google from 47 reviews) and Smart Choice Plumbing (Verified, rated 4.6 on Google from 9 reviews), plus 2 more.
5 plumbers serve Castro Valley, California. 2 are rated 4.5 or higher on Google. 5 have a website. Most common services: Gas water heaters, Heat pump water heaters, Tankless water heaters, Water heater installation, Water heater repair. ZIP codes covered: 94546.
Harris Water Heaters (89 reviews, rated 4.2) and Alligator Plumbing (47 reviews, rated 4.8). Review counts are read from each business's Google Business Profile.
Google lists them under Plumber (1) and Service establishment (1). A business can carry more than one category, so the counts overlap.
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