ADU Contractors in Creston, CA — License-Verified Contractors
Every contractor below holds an active California license with an office of record in Creston, 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
21 license-verified contractors based in Creston
Boche Construction
BBoyd R W Construction
BBremer C Construction
BCrook Construction
BDekorte John Construction
BEnvirotec Environmental
BFaulkner William J
BGenerations Construction & Remodel
BHartzell Horizontal Drilling Inc
AC-57J R P Construction
BJames Henry
BK D B Backhoe Service
AKaizen Construction Consultants Inc
BMadsen Neal General Contractor
BC-27Molnar Darren General Engineering
AReynolds Rob Construction Inc
ABC-10Valente Rick Construction Inc
BWalter Building Company Inc
BWescom Jason Construction
BWiemann G Construction Inc
BC-8Data source: CSLB public records as of November 6, 2026 · Verify any license at CSLB