ADU Contractors in Huntington Beach, CA — License-Verified Contractors
Every contractor below holds an active California license with an office of record in Huntington Beach, verified against CSLB public data as of November 6, 2026: general builders — A (General Engineering) and B (General Building), the classifications that can build an ADU — and the licensed trades ADU construction uses, C-10 Electrical, C-36 Plumbing and C-5 Framing & Rough Carpentry. Listings are alphabetical; the featured builder is labeled, never ranked.
ADU rules — setbacks, size limits, parking, and fees — are set by the local jurisdiction and change often. Before you hire, read the ADU permit process guide and the Southern California ADU cost guide, and verify any license free at CSLB.
Mars Construction Industries Corp
ADU Cities' own design-build team
CSLB #1138550 · A · B · C-36 · C-20
Building ADUs across Los Angeles, Orange, Riverside, San Bernardino, San Diego & Ventura counties
931 license-verified contractors based in Huntington Beach — page 3 of 19
Bonanni Ed
BBoostrom Construction Inc
BBossie Developers, Inc.
BBowen J Construction Inc
BBoyes Construction Inc
BBp Electric
C-10Bradley W Donovan
BBrady Construction And Design Inc
BC-10Brady F W Development Inc
ABHAZBranson Mechanical Remodeling
C-36C-54Brennan Tom Plumbing Inc
C-36Brereton Steven
C-36Bridge City Electric
C-10Brilliant Construction
BBrooks Larry R
BBrown James Daniel
C-36Bruce Haines
BBrymax Mechanical
Brymax Construction Services Inc
C-20C-36Buchanan Company Inc
AD-24Burgess Building
BBusack Terry Construction
BByrnes Electrical
C-10C & C Homes Inc
BC-7C B S Construction Services Inc
BC-33C M Dailey Electric
C-10C M T Home Improvement
BC R H
BC S Construction Co
Croswell Construction Incorporated
BC S L Building Inc
BC&c Power Company Inc
AC-10Caldwell Builders
BCalifornia Builders Remodeling & Real Estate Inc
BC-15C-54California Construction Svcs
BCalifornia Custom Creations Inc
BCalifornia Design Wood Products Inc
BCalifornia Home Construction
BC-47Calwest Construction
BC-17C-39Caputo Construction
BCarpenter's Construction
BCarroll Ronald Lawrence General Contractors Inc
BCarter General Construction Inc
BCase
Phase 9 Science And Technology Inc
BC-10Cassidy's Construction Company
BCatalyst Development
BCatalyst Plumbing
C-36Cec Construction Engineering
ABC-10C-34C-36C-42Cederquist Steven Design & Construction
BC-10Cgs Plumbing Inc
C-36Champion Plumbing Inc
C-36Data source: CSLB public records as of November 6, 2026 · Verify any license at CSLB