ADU Contractors in Buena Park, CA — License-Verified Contractors
Every contractor below holds an active California license with an office of record in Buena Park, 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
283 license-verified contractors based in Buena Park — page 6 of 6
Swofford Electric LLC
C-10T & R Property Pros
BTanioka Kevin
BTekton Co
BTgc Plumbing Inc
C-36Todd Painting Inc
BC-33Torres General Framing Inc
BC-5Total Care Plumbing
C-36Total Power Solutions LLC
C-10Tri - Chem Technology Corporation
BC-20C-36D-62Truong Ken
C-10Valenzuela Construction
BVector Installation Services
V O S Inc
BVelco Electric Services Inc
C-10Verne's Plumbing Inc
BC-34C-36Villagran Construction
BC-10Walker's Repair
BWatson Thomas Lee
AWatts Express Inc
C-10Wayne Perry Inc
ABC-10C-20C-21C-57D-40HAZWeatime Inc
BWellspring Construction
BWiltron Construction Inc
BWoojoo Construction
BC-10C-23Wrc Restoration
BC-33Yoo Hyuntaeck
BYoon Sukjae
BC-10Yu Yiming
BYun Jeong Kim
BYun Walter
C-10Zeal Plumbing & Rooter
C-36Zion Landscaping Inc
BC-27Data source: CSLB public records as of November 6, 2026 · Verify any license at CSLB