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1 of these firms is based in Castro Valley; the others serve Castro Valley from towns including Mill Valley (29 mi), Walnut Creek (13 mi) and Danville (9 mi).
6 open weekends · 18 rated 4.5+
Data verified October 18, 2026
Listed for homeowners in and around Castro Valley, CA, these 24 firms take interior work. Whether a firm does full renovations or furnishing and styling only, and how it says it charges, comes from its own website, with ratings and quotes pulled from public reviews.
21 of the 24 firms on this page have a rating, from 4.1 to 5.0 across 126 reviews; 18 are rated 4.5 or higher. When customers rate these firms on specific qualities, they most often praise professionalism (96%), quality (89%) and responsiveness (82%). 5 are open on Saturdays and 4 on Sundays. 1 lists staff certifications (LEED) and 2 have a BBB rating of A or A+. Domain records put 17 websites of the firms on this page at ten or more years old; the oldest dates from 2000. 2 give free estimates and 1 lists coupons or special offers. We have a website on file for all 24 of the firms on this page; 17 publish a contact page and 17 list a public email. We count these figures across the firms on this page; distances are straight-line, and hours and prices change, so confirm the details with the firm before you book.
All 24 firms here list a website, and the portfolio is the part worth studying. Look for projects the size of yours rather than the showpieces, and look for the same hand across several homes. Ask whether the photographs show work the firm designed or work it only styled for the camera.
