ADU Contractors in Chino Hills, CA — License-Verified Contractors
Every contractor below holds an active California license with an office of record in Chino Hills, 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
232 license-verified contractors based in Chino Hills — page 5 of 5
Tensung Construction
BTerriquez Javier
BC-10C-7Theta Builders LLC
BTimax Electric Inc
C-10Toot Construction
BTri - Net Construction
Tri - Net Security Solutions Inc
BC-10Trinetwork Inc
C-10C-7Triple E Construction
Engel Enterprises Inc
BC-6Trump Development & Construction Inc
BTung Tati
BC-54U Can Construction Inc
BUnlimited Developers
BC-33Urias Construction
BVander Zon Construction
BVega Alex
BVenetrics Inc
C-10Voc Engineering And Construction Inc
BC-10Wang Paochih
BWanvo Construction
Wanvo Holdings Inc
BWisdom Construction
Wisdom Creation Inc
BWj Construction & Building
BWj Plumber Inc
C-36Wreck Age Demolition Inc
AASBC-12C-21HAZXiao Du
BYeemy Construction
Golden Rem Investment Inc
BC-10Yte Inc
BC-10Yufeng Dai
BZelpha Construction Inc
BC-21Zeng Guodong
BZh Construction
BZhimin Wang Construction
BData source: CSLB public records as of November 6, 2026 · Verify any license at CSLB