ADU Contractors in Morongo Valley, CA — License-Verified Contractors
Every contractor below holds an active California license with an office of record in Morongo Valley, 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
32 license-verified contractors based in Morongo Valley
Aiken Daniel K Construction
BAmy Y Medina
BApex Plumbing
C-36Brindle Thomas N
BCarroll Electric
C-10Castle Construction
BCopeland Electric
The Lightning Group Inc
C-10Cumming Construction
ABD V S Plumbing Inc
C-36D Y C Framing Inc
BFisher Jerry Cement Inc
BC-8Fisher Plumbing
C-36Ge Electric
C-10Green Marine Engineering
AHelfman Construction
BHowell Chris Construction
BInfra Utility Construction
ABIronwood Construction
BJohn Cunningham
John Edward Cunningham JR
BKennstruction
BLife Electric
C-10Mabco Maintenance
BC-10Mr D's Construction
BPatterson Greg Construction
BRanger Enterprises Inc
BRedstone Electric
C-10Rlh Construction
BSunset Security & Communications
C-10C-7Turner Engineering
AC-12C-42Valpy S E Construction And Engineering
ABYoungs Solid Construction
BData source: CSLB public records as of November 6, 2026 · Verify any license at CSLB