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Castro Valley, CA

General Contractors in Castro Valley, CA

35 general contractors in Castro Valley, California, with Google ratings, hours and websites where the business has them.

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35 general contractors serving Castro Valley

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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35 of 35 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.

Top rated

Highest-rated general contractors in Castro Valley

Ranked by Google rating, then review count. Only businesses rated 4.5 or higher with 5+ Google reviews qualify.

  1. GAXL Construction & Plumbing

    5.015 Google reviewsVerified

    Bathroom remodeling · Kitchen remodeling · Plumbing

  2. Carmel Construction

    5.012 Google reviewsVerified

  3. Ocean Remodel

    4.9124 Google reviewsVerified

    kitchen remodeling · bathroom remodeling · full home remodeling

  4. Complete Construction

    4.813 Google reviewsVerified

  5. Alameda Engineering

    4.715 Google reviewsVerified

    drainage repair · retaining walls · foundation repair

  6. Summit

    4.520 Google reviewsVerified

    Fireplace installation · Outdoor living spaces · Patio design

See every general contractors in Castro Valley sorted by rating · Best of Castro Valley across every trade

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35 general contractors serve Castro Valley, CA. 15 are rated 4.5 or higher on Google and 11 have a perfect 5.0. 26 have a website. Most common services: bathroom remodeling, foundation repair, kitchen remodeling, Bathroom remodels, BBQ islands, Concrete work….

Verified on Google
8
Average rating
4.8 / 5
Google reviews
255

How Google categorizes general contractors in Castro Valley

Primary and secondary categories from each business’s Google Business Profile. Tap one to filter the list.

Services general contractors 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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All 45 services in Castro Valley

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How general contractors in Castro Valley compare

General ContractorsCastro ValleyCAU.S.
Average Google rating (10+ reviews)4.714.624.57
Median Google reviews468
Reviews for the top quarter15+18+22+
Have a website74.3%70.7%65.4%

Businesses listed in our directory, not every business in the market. Updated November 2026. General Contractors industry report · What is a good rating for general contractors? · Best cities for general contractors

From Page One Partner Research

  • In Castro Valley, half of the general contractors we list with reviews have 4 or fewer Google reviews, and 15+ puts one in the local top quarter; the average rating is 4.71 (35 listed in our directory). General Contractors industry report
  • A good Google rating for general contractors: in our directory, the median is 4.8 and at least a quarter hold a perfect 5.0. Half of them have 8 or fewer reviews. What is a good rating for general contractors?
  • California businesses in our directory average 4.52 stars on Google, ranking 22 of the 50 states we measured; 30.9% list no website. Ratings in every state

Quick answers

Who serves Castro Valley?

Names and Google ratings, straight from each business's profile.

Which general contractors serve Castro Valley, CA?

35 general contractors serve Castro Valley, CA. Highest rated (10+ reviews): GAXL Construction & Plumbing (Verified, rated 5.0 on Google from 15 reviews), Carmel Construction (Verified, rated 5.0 on Google from 12 reviews) and Ocean Remodel (Verified, rated 4.9 on Google from 124 reviews), plus 32 more.

How many general contractors serve Castro Valley, CA, and how are they rated?

35 general contractors serve Castro Valley, California. 15 are rated 4.5 or higher on Google and 11 have a perfect 5.0. 26 have a website. Most common services: bathroom remodeling, foundation repair, kitchen remodeling, Bathroom remodels, BBQ islands, Concrete work…. ZIP codes covered: 94546, 94552.

Which general contractors in Castro Valley, CA have the most Google reviews?

Ocean Remodel (124 reviews, rated 4.9), B.A. Morrison General Contractor (29 reviews, rated 4.1) and Summit (20 reviews, rated 4.5). Review counts are read from each business's Google Business Profile.

Which general contractors in Castro Valley, CA are open on weekends?

5 general contractors in Castro Valley, CA publish hours on Google. 3 are open on Saturdays (Ocean Remodel, GAXL Construction & Plumbing and Alameda Engineering) and 1 on Sundays (Ocean Remodel). Use the Open now filter above to see who is open right now.

What kinds of general contractors are in Castro Valley, CA?

Google lists them under General contractor (5), Construction company (2), Deck builder (2), Bathroom remodeler (1), Concrete contractor (1) and Drainage service (1). A business can carry more than one category, so the counts overlap.

General Contractors near Castro Valley

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FAQ

Questions about Castro Valley businesses

How businesses get here and how up to date everything is.

Yes. Page One Partner is a free directory of local service businesses across the United States. It costs nothing to search, and nothing for a business to be listed. Each profile is built from the business's public Google Business Profile, and an owner can claim, update or hide theirs at any time by contacting info@pageoneinsights.com.

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