Wonderlin Roofing Systems
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24 companies listed · 5 in Castro Valley · 2 open 24/7 · 9 open weekends · 21 rated 4.5+
Data verified October 18, 2026
Listed for homeowners in and around Castro Valley, CA, these 24 companies take roofing work. What each one claims about tear-offs, materials and workmanship cover is taken from its own website; ratings and quoted lines come from public reviews.

Of the 24 companies we list here, 5 are in Castro Valley itself and 19 come from towns including Hayward (5, 5 mi), Oakland (3, 10 mi) and Walnut Creek (3, 13 mi). 22 of the companies on this page have a rating, from 4.3 to 5.0 across 667 reviews; 6 have 50 or more reviews and 21 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise quality (83%), professionalism (81%) and responsiveness (81%). 2 are open around the clock; 6 are open on Saturdays and 5 on Sundays. The services the companies on this page list most often on their websites are gutters (3), residential roofing (3), commercial roofing (2), inspections (2) and roof repairs (2). 7 show a license on their websites and 9 have a BBB rating of A or A+. 14 have ten or more years of experience, the longest 47 years. 4 offer emergency call-outs; 2 offer financing or payment plans; 15 give free estimates; 6 are family- or locally-owned and 1 lists coupons or special offers. 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.
Free estimates are stated by 15 of the 24 companies on this page. A free visit is normal for roof work, but it is a sales call as well as an inspection, so ask for the findings in writing with photos of what was seen up there. Get a second look before you commit to a full replacement.
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