ADU Contractors in Escondido, CA — License-Verified Contractors
Every contractor below holds an active California license with an office of record in Escondido, 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
927 license-verified contractors based in Escondido — page 19 of 19
West Tech Contracting Inc
AASBC-21HAZWestern Interiors Inc
BC-2Western Rim Constructors Inc
ABC-13C-27C-8Western State Builders
BWeston Builders Inc
BWhaley John D Construction
BWhitson Contracting & Management Inc
AWier Construction Corporation
ABC-27C-8HAZWills & Son General Building Contractors
Wills & Son General Contractors Inc
BWilson Randy Remodeling
BWimenta Richard
BWolf Building & Contracting
BWoodfill Phillip A
BC-33Woodruff Construction
BYellow Jacket Energy
C-10Young Energy Solutions
Young Home Energy LLC
BC-10Yule Andrew
BZ M K Construction Inc
BZagros Electric Inc
C-10Zarei Electrical Services
C-10Zarrabi Daria Construction
BZech Plumbing Inc
BC-36Zg Construction
BZiggy's Construction Inc
BZion Gates Construction
BZoom Drain Sd North County
Surgexp Corporation
C-36Data source: CSLB public records as of November 6, 2026 · Verify any license at CSLB