Hiring in Los Angeles

Home Addition Contractors in Los Angeles.

A home addition means new structure tied into your existing house — foundation, framing, and a roofline that has to match what’s already there. Structural know-how matters as much as finish quality here.

A better way to find one

The usual way to hire for a project like this means inviting several strangers to your home just to get a price, then hoping you picked someone trustworthy. Domestra flips that: share a few photos of your project, and verified local contractors send you a real preliminary range before anyone shows up. You compare, then choose who — if anyone — actually comes to see it in person.

What “verified” actually checks

• An active California contractor’s license (CSLB), checked against the state record before they can respond to you.
• Current general liability insurance and workers’ compensation — additions almost always involve a crew, not one person.
• Whether structural engineering is included in their process, especially for a second-story addition, which needs real engineering sign-off, not a guess.

What it typically costs

Home additions in the LA area typically run $200 to $700 or more per square foot, with second-story additions running higher than ground-level ones due to structural reinforcement and roof work.

See the full home addition cost guide for the complete breakdown by tier.

Questions people actually have

• How do I check if a contractor’s license is real? Look them up yourself at cslb.ca.gov (“Check a License”) or call (800) 321-2752 — takes under a minute and shows status, bond, and any complaints.
• Do I have to let someone into my home just to get a price? No — share photos of where the addition would go first and get a preliminary range before anyone visits in person.
• Does the quote usually include design and permits? Not always — ask directly. Per-square-foot numbers often leave out design, engineering, and permit costs, which can add 10-20% on top of construction.