Room Additions
Room Addition Contractor in LA & Orange County
More house, same address. We build room additions, primary suites, and second stories — foundation to final inspection, one contractor the whole way.
- Residential & Commercial
- Family Trade Roots Since 1953
- Free Phone Estimates
- Cash, Senior & Military Discounts
An addition opens up your roof, your walls, and your foundation. That's exactly the project where a disappearing crew or a low-bid change-order artist hurts most. You get a fixed scope, a written schedule, and a job site that gets buttoned up weathertight — not a tarp flapping over your living room for a month.
Scope
What's included
- Single-room additions and bump-outs
- Primary bedroom and bathroom suites
- Second-story additions
- Family rooms and great rooms
- Structural engineering and city permits
- Foundation and slab work
- Framing, roofing, and exterior matching (stucco, siding)
- Electrical, plumbing, and HVAC extension into the new space
- Drywall, flooring, paint — finished, not 'framed and gone'
- Final inspection and sign-off
Process & Permits
How this project actually goes
Additions need structural plans and a city permit — we handle engineering, plan check, and every inspection along the way.
We match the existing roofline, stucco, and trim so the addition looks original, not bolted on.
The house stays livable. We seal off the work zone, keep utilities running, and schedule the tie-in so you're never without a kitchen or bathroom longer than we told you.
Why Us
One contractor. Every trade. Straight answers.
Permits & Paperwork
Permits pulled by us, inspections scheduled and passed, and a fixed price in writing before a hammer swings.
One Accountable Contractor
Every trade on the job answers to us. No finger-pointing between subs, no "that's the other guy's problem" — one company owns the result.
Real Numbers, Real Discounts
Free phone estimates, cash discounts, senior and military discounts — and a written rule that nothing changes without your signature and a price first.
Related services
Additions across our service area
Straight Answers
Additions questions, answered straight
How much does a room addition cost in Los Angeles?
Most single-room additions run $300–$500 per square foot depending on what's in the room — a bedroom costs less than a bathroom or kitchen. Second stories run higher. Call and we'll give you a straight range for free.
Do room additions need permits?
Yes, every time. Structure, electrical, plumbing, and mechanical all get inspected. Unpermitted additions come back to bite you at sale time — appraisers won't count the square footage and buyers' lenders walk.
How long does an addition take?
A typical single-room addition runs 2–4 months of construction after permits. Second stories run longer. You get the schedule in writing before we start.
Can we live in the house during construction?
Almost always, yes. We build the shell weathertight before opening the wall into your living space, and we keep the work zone sealed off from the rest of the house.
Get a Straight Number Before We Touch Anything
Free phone estimates. Cash, senior & military discounts.
Call 562-441-4652Or fill out the form below — we call you back within one business day.