ADU Contractors in Lake Isabella, CA — License-Verified Contractors
Every contractor below holds an active California license with an office of record in Lake Isabella, 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
22 license-verified contractors based in Lake Isabella
Berry Electric
C-10Boyer Construction And Home Repair
BConner Construction
BCrawford Construction
BFigueroa Construction
BGeneral Plumbing And Septic Services Inc
C-36Green Coast Building & Development Inc
BC-39Home Town Builders
BKiko Rods Electrical Services
C-10Lapham Construction Incorporated
BMason
AHAZMountain Plumbing Co
C-36O'donoghue Construction Company
BPierce Electrical Services
C-10Piker Roy
BSmith Mike Construction
BSmith Robert James Construction
BSun Cell Electric & Construction
BC-10C-27Tlc Mechanical LLC
C-10C-20C-36Underground Express Company
AWatson Jay L Electric
C-10Data source: CSLB public records as of November 6, 2026 · Verify any license at CSLB