The 10 home addition contractors from Google's results for Los Angeles, California, ordered by Google rating weighted by review count. No firm pays to be listed or ranked.
Last updated
Licensing in California. California contractors need a CSLB license for most remodeling work. Check the license number and its bond on the CSLB site before you sign.
on GoogleLos Angeles, CA
Across Greater Los Angeles, Phiend Builders adds space to homes through room additions, garage conversions and ADUs. The team covers structural engineering, city plan check, framing and finishes so the new space matches the original house, and it also remodels kitchens and bathrooms.
(323) 393-6552 6677 Santa Monica Blvd #1701, Los Angeles, CA 90038
on GoogleLos Angeles, CA
Ohayon Construction adds rooms to Los Angeles homes, including bedrooms, bathrooms, home offices and larger living areas. The team reviews the existing structure, site access and plans for both ground-floor expansions and second-story additions before setting the construction scope.
(818) 284-7545 340 Hayworth Ave, Los Angeles, CA 90048
on GoogleLos Angeles, CA
Cala Builders works across Los Angeles County on second-story additions, room additions, ADUs and garage conversions. The company also builds new and hillside homes, handles full renovations and remodels kitchens and bathrooms, with architectural plans and 3D renderings offered in-house.
(310) 340-0769 5260 W Pico Blvd, Los Angeles, CA 90019
on GoogleWoodland Hills, CA
From its Woodland Hills base, Delcoi Construction Services builds room additions for homeowners around Los Angeles. Each addition is planned to tie into the existing structure and add living space suited to how the household uses the home.
(888) 272-3727 21650 Oxnard St #1910, Woodland Hills, CA 91367
on GoogleTorrance, CA
Bay Cities Construction is a Torrance contractor taking on home additions and major remodels in the Los Angeles area. The owner runs the company directly and works with homeowners planning large-scale changes to their houses.
(888) 881-7355 22760 Hawthorne Blvd #230, Torrance, CA 90505
on GoogleLos Angeles, CA
Level Works plans and builds home additions in Los Angeles, adding space such as larger kitchens, extra bedrooms or home offices so owners can stay put. It also handles kitchen remodeling, and projects begin with a consultation covering permits, budget and timeline.
(310) 382-1001 925 N La Brea Ave, Los Angeles, CA 90038
on GoogleAgoura Hills, CA
Doobek builds room additions in Los Angeles and nearby communities from its Agoura Hills base. Past projects include a 2,100 square foot addition and complete interior and exterior home renovations.
(310) 930-0047 5308 Derry Ave Unit I-102, Agoura Hills, CA 91301
on GoogleMontclair, CA
Home Improvement LA builds room additions and handles renovations for homes in the Los Angeles area, operating out of Montclair. Additions can extend a house in any direction and are designed to blend with the original building.
(626) 858-3111 9507 Central Ave, Montclair, CA 91763
Los Angeles
Black Wall Builders is a Miami contractor handling kitchen remodels, home additions and basement finishing.
Los Angeles
Go Home Builders is a home addition contractor working in the Los Angeles area.
In Los Angeles, a bump-out typically costs $29,000 – $69,500. Remodeling labor in Los Angeles runs about 16% above the US median, which accounts for most of the difference from the same project elsewhere.
These are the firms from Google's results for "home additions los angeles", with directories, chains and suppliers removed. They are ordered by Google rating weighted by review count, and the ratings shown are Google's. No firm pays to be listed or ranked. The list was last updated in October 2026.
Usually yes, or a design-build firm with in-house design. Additions need stamped structural drawings for the permit in most places, and zoning review on setbacks, height and lot coverage.