ADU Contractors in Long Beach, CA — License-Verified Contractors
Every contractor below holds an active California license with an office of record in Long Beach, 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
977 license-verified contractors based in Long Beach — page 7 of 20
El Camino Construction & Engineering Corporation
ABEl Property Improvements Inc
BElco Inc
BElec-tech Electrical Contractors
Elec-tech Enterprises Inc
C-10Electra-tech
C-10Electric Construction Company
Pgs Construction Corp
BC-10C-45C-6Electrical Work Any
C-10Electricrey Inc
C-10Elite Builders & Design
Gs Builders Group Inc
BElite Electric
C-10Elx Xiong Electric Inc
C-10Elysium Power Works
C-10Emery Electric
C-10Emmy's Construction
BEmpire Electrical
C-10Energwise
I H A Design Inc
BC-10C-36Eng Richard Construction
BEnsite Environmental
BEnvetco Engineering Services
Envetco Services
ABErickson Design And Construction
BEspinosa & Sons Construction Inc
BEspinoza-leon Guillermo
C-36Estrada Construction
Estrada Doors & Windows Inc
BEuropean Electrical Contr
C-10Ew Electrical Services Inc
C-10Excel Paving Company
Palp Inc
AC-12C-31Exclusive Home Improvement LLC
BExtensive Electrical Inc
C-10F M F Construction
BC-29Fargo Construction Group Corp
BFat Lb King Plumbing
Francisco Marquez
BC-36Fatone Darren Construction
BFcm Millworks LLC
BFearless Const Services
BC-36Feinberg J Jay
ABFelicione Construction
BFence Masters
BC-13C-29Finest Electric Inc
C-10Five Star Bath Solutions
Sarfity Solutions Inc
BFive Walnut Construction Inc
BFloor Coverings International Of Long Beach CA
Flock Flooring Inc
BC-15Foster Michael Andrew
BFoster Ronald Dale
BC-10C-36Four Star Construction
BFrahm Construction
BFraming Square General Construction
BFrancis Electric
C-10Franco Rene Ernesto
BFrank Allan Plumbing Heating Cooling
C-20C-36Data source: CSLB public records as of November 6, 2026 · Verify any license at CSLB