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24 companies listed · 8 in Castro Valley · 1 open 24/7 · 8 open weekends · 18 rated 4.5+
Data verified October 18, 2026
Listed for homeowners in and around Castro Valley, CA, these 24 companies build and rebuild retaining walls. Wall types, materials and hours are what each company publishes for itself, and the ratings and quoted lines are drawn from public reviews.
Of the 24 companies we list here, 8 are in Castro Valley itself and 16 come from towns including Danville (2, 9 mi), Walnut Creek (2, 13 mi) and Berkeley (2, 16 mi). 23 of the companies on this page have a rating, from 4.0 to 5.0 across 844 reviews; 5 have 50 or more reviews and 18 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (93%), responsiveness (90%) and quality (88%). 1 is open around the clock; 7 are open on Saturdays and 2 on Sundays. The services the companies on this page list most often on their websites are retaining walls (3), bathrooms (2), decks (2), kitchens (2) and landscaping (2). 13 show a license on their websites; 1 lists staff certifications (EPA) and 5 have a BBB rating of A or A+. Domain records put 14 websites of the companies on this page at ten or more years old; the oldest dates from 2000. 3 offer emergency call-outs; 2 offer financing or payment plans; 9 give free estimates and 5 are family- or locally-owned. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
A website link sits on 23 of the 24 wall builders here. A photograph of a finished wall tells you very little, because everything that fails is behind the face. Look for pictures taken mid-build instead: the base trench, the drainage stone going in, the grid rolled out between courses. A company that photographs that stage is proud of the right part.
