Number 1: Creations Remodel
on GoogleLa Mesa, CA
Creations Remodel is a La Mesa, California contractor handling bathroom remodels and home additions.
(619) 604-6665 8869 Echo Dr, La Mesa, CA 91941
Home addition contractors in San Diego
The 10 home addition contractors from Google's results for San Diego, California, ordered by Google rating weighted by review count. No firm pays to be listed or ranked.
Last updated
- Bump-out
- $28,000 – $66,500small single-room extension
- Room addition
- $89,000 – $222,000ground floor, finished
- Second-story addition
- $166,500 – $444,000whole or partial floor
- San Diego vs US
- +11%above the US median
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.
Number 2: Shiro Builders Group
on GoogleSan Diego, CA
Shiro Builders Group is a San Diego design-build contractor focused on interior remodeling. Its work includes kitchen and bathroom remodels, ADUs and room additions planned around how a household uses its home.
(858) 630-6818 4540 Kearny Villa Rd Ste 214, San Diego, CA 92123
Number 3: New Age Design and Build
on GoogleSan Diego, CA
New Age Design and Build is a San Diego design-build contractor centered on custom decks. The team handles design with 3D renderings, permits and HOA approvals, construction and full property renovations, including replacing rotting boards and unsafe railings.
(619) 215-1669 4501 Mission Bay Dr. #2B, San Diego, CA 92109
Number 4: Iltotal Design
on GoogleSan Diego, CA
IL Total Design is a San Diego design-build firm that works on home additions.
(619) 404-0125 9655 Granite Ridge Dr #200, San Diego, CA 92123
Number 5: room additions in San Diego
on GoogleSan Diego, CA
K-Co Construction builds room additions in San Diego, from new bedrooms and home offices to kitchen expansions. Each addition is designed to blend with the existing house, with the homeowner choosing the finishes and details.
(858) 274-0005 3670 Clairemont Dr Ste 9, San Diego, CA 92117
Number 6: Home Additions San Diego
on GoogleSan Diego, CA
Ten Seventy Architecture is a San Diego studio designing modern and minimalist home additions. It pairs architectural design with the permitting process so homeowners can add living space to an existing house.
(619) 800-3488 4411 30th St Ste 202, San Diego, CA 92116
Number 7: PBH Builders
on GoogleSan Diego, CA
PBH Builders is a home addition contractor in San Diego. Typical projects include extra bedrooms, larger kitchens, second stories and custom family rooms for homeowners who would rather expand than move.
(619) 719-5431 4715 30th St, San Diego, CA 92116
Number 8: HK Remodel
on GooglePoway, CA
HK Remodel builds home additions in Poway, California.
(858) 748-6580 13956 Sam O Reno Rd, Poway, CA 92064
Number 9: Affordable Design and Remodel
on GoogleSan Diego, CA
This San Diego design and build firm remodels kitchens for homeowners, changing layouts and opening up space to fit how families live. Project managers, designers and architects guide each remodel, and the company also builds home additions.
(858) 707-7711 4241 Jutland Dr Ste 205, San Diego, CA 92117
Number 10: San Diego Renovators
San Diego
San Diego Renovators is a remodeling contractor centered on kitchen and bathroom renovations. It also builds room additions and ADUs, constructs swimming pools and hardscape, remodels backyards and offers design-build services in San Diego.
What home addition contractors charge in San Diego
In San Diego, a bump-out typically costs $28,000 – $66,500. Remodeling labor in San Diego runs about 11% above the US median, which accounts for most of the difference from the same project elsewhere.
How to choose between them
- Check the license yourself. Where California or San Diego licenses this work, the licensing board's own lookup confirms a license number in a minute. Do it before you sign, not after.
- Get three bids on the same scope. Written down, split into labor, materials, allowances and anything structural. Most people compare a total against a total and end up choosing between two different projects.
- Ask what is not included. Permits, debris removal, fixture and finish allowances, and repairs after demolition are the four that turn a cheap bid into an average one.
- Never pay a large deposit up front. A deposit to order materials and hold a start date is normal. Half the total before anyone shows up is not.
How this list is ordered
These are the firms from Google's results for "home additions san diego", 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.
Home addition contractors in San Diego: common questions
Do I need an architect for a home addition?
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.