QA Builders
About QA Builders
Specializing in ADU construction and related services in San Jose, CA.
Services Offered
Location & Service Area
San Jose and surrounding areas
Reviews(3)
Great communication
They helped us design an ADU that perfectly matches our main house. The neighbors love it too!
Backyard CottageWould hire again
We compared several ADU builders and chose them based on their portfolio and reviews. Best decision we made!
New ADU ConstructionGreat communication
From the initial consultation to the final walkthrough, every step was handled professionally. The ADU looks amazing.
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SponsoredPortable power stations and solar panels for ADUs. Off-grid power solutions, backup generators, and whole-home battery systems.
Specialized ADU & renovation loans. Borrow based on your home's after-renovation value — up to $500K with competitive rates.
Unsecured home improvement loans from $5K–$100K. No fees, low fixed rates, and same-day funding available.