About Coastal Builders
Coastal Builders is a Long Beach ADU builder. We specialize in basement, garage conversions, attached ADU, and detached ADU projects.
Services Offered
Location & Service Area
Long Beach and surrounding areas
Reviews(4)
Highly recommend
We hired them for a garage conversion ADU. The quality of work exceeded our expectations. They handled all permits and inspections smoothly.
Backyard CottageOutstanding work
Excellent communication throughout the project. They kept us informed at every stage and the final result is beautiful.
New ADU ConstructionTop-notch builders
Our prefab ADU was installed quickly and looks custom-built. Very happy with the quality and the timeline.
Prefab ADUWonderful team
We compared several ADU builders and chose them based on their portfolio and reviews. Best decision we made!
Backyard CottageShare Your Experience
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SponsoredFactory-built ADUs delivered to your site. Modern designs from 400–1,200 sq ft. Turnkey installation included.
Unsecured home improvement loans from $5K–$100K. No fees, low fixed rates, and same-day funding available.
Affordable business insurance for contractors. General liability, workers' comp, and commercial auto — all online.