Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Remodeling Company in Costa Mesa, CA
Home renovation in Costa Mesa means working with two very different housing stocks: tight-lot 1920s – 1950s bungalows on the Westside and larger tract homes near South Coast Metro. Salt air, marine layer moisture, and Santa Ana winds all shape which materials hold up and which fail early. San Mateo Construction has served Costa Mesa since 2018 with a single-contract approach covering exterior work, interior finishes, and ADU construction. Call (855) 901-7266 for a free estimate on your project.
Why Costa Mesa Homes Are Different
The Westside (92627) is dense with pre-war and mid-century bungalows on 25-to-50-foot lots. Mature trees crowd rooflines, detached garages often sit right at the setback line, and decades of layered additions mean many homes carry non-conforming conditions a contractor has to work around rather than tear out and start fresh. Drainage and grading on those narrow lots create problems you won’t find in master-planned Irvine or Huntington Beach.
On the Eastside (92626), the mix shifts toward larger tract homes, condos, and a heavy commercial/industrial presence around South Coast Metro and John Wayne Airport. Coastal Orange County’s marine layer delivers persistent onshore moisture and salt air that corrodes exposed fasteners and stresses exterior finishes, while the mild climate means no freeze-thaw cycling and almost no snow load to design for. Santa Ana wind events, though, push dust and grit into window tracks, siding seams, and roof valleys, and raise wildfire concerns at the city’s inland edges. Costa Mesa remodels lean toward replacing tired stucco, upgrading tile roofs, swapping old windows, and converting underused garages into living space rather than building new greenfield homes.
Styles & brands we work with







Our Main Costa Mesa Services
Two services account for most of the calls we take from Costa Mesa homeowners: full-scope general contracting and whole-home remodeling. Both run through the same project management team and the same vetted subcontractor network.
General Contractor in Costa Mesa
Acting as the general contractor on a Costa Mesa job means pulling permits, sequencing trades, and keeping material deliveries moving on streets where parking a roll-off dumpster is its own challenge. Westside bungalows with non-conforming additions often require working with city reviewers on existing-condition approvals before framing begins. General Contractor in Costa Mesa covers how we manage that process from first site visit through final inspection.

Home Remodeling in Costa Mesa
Home remodeling here spans everything from refreshing a 1940s Westside kitchen to reworking a 1970s tract home near the airport. Coastal salt air means exterior trim, window flashing, and patio hardware need corrosion-resistant materials, and any remodel that opens a wall gives us a chance to correct decades of layered shortcuts. Home Remodeling in Costa Mesa walks through the scopes we handle most often.

What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Home Renovation in Costa Mesa

Home renovation in Costa Mesa is shaped by two facts: the Westside’s older bungalows sit on narrow lots with decades of add-ons, and the coastal marine layer along with Santa Ana winds punishes cheap exterior materials faster than homeowners expect. The job here is rarely a simple gut-and-redo; it’s threading new plumbing, electrical, and insulation through walls built before modern codes while keeping the roofline, drainage, and setbacks working together. Home Renovation is the backbone of what San Mateo Construction handles across Costa Mesa, from the first structural assessment to the finish walkthrough.
Home Renovation Contractors
Signs you need it
You’re planning a project that touches multiple systems at once – framing, rough plumbing, electrical, insulation – and coordinating three or four separate trades has already become more than you want to manage.
What it costs in Costa Mesa
Because home renovation pulls together several scopes, costs in Costa Mesa typically land between $45,000 and $130,000 depending on square footage and how much of the existing structure has to be corrected first.
How we do it
We start with a structural and systems assessment, produce a line-item scope, pull permits, then run the job through a single schedule so rough trades, inspections, and finishes happen in order without gaps.
Home Renovators
Signs you need it
Your Westside bungalow has had three different additions put on over the years and the floor plan, wiring, and rooflines no longer connect into one workable layout.
What it costs in Costa Mesa
Renovating an older Costa Mesa home usually runs between $45,000 and $130,000, with the final number driven by how much existing framing can be reused and how many non-conforming conditions must be brought up to code.
How we do it
We map the existing structure against current code, keep what’s sound, replace what isn’t, and rebuild the connections – walls, rooflines, drainage – so the home works as one system instead of four separate remodels stacked on top of each other.
Home Improvement Contractors
Signs you need it
You have a growing list of separate projects – windows, siding, a kitchen refresh, a leaking shower – and you want one accountable company rather than a different crew for each scope.
What it costs in Costa Mesa
Combined home improvement scopes in Costa Mesa typically fall between $45,000 and $130,000, though smaller single-scope projects like cabinet installation or a backsplash land in the $4,000 to $13,000 range.
How we do it
We bundle the scopes under one contract and one schedule, order materials from our supplier network, and keep the same project lead on your job from demolition to final paint.
What Home Renovation Costs in Costa Mesa
| Item | Typical range in Costa Mesa |
|---|---|
| Home Addition | $45,000 – $130,000 |
| Garage Conversion | $30,000 – $80,000 |
| ADU Construction | $90,000 – $220,000 |
How long does a home renovation take in Costa Mesa?
Most Costa Mesa renovations run 3 to 7 months depending on scope and permit review times at the city. Westside jobs with non-conforming existing conditions usually take longer because the city requires additional plan checks. Call (855) 901-7266 and we’ll give you a realistic timeline for your specific project.
Do renovation contractors in Costa Mesa handle the permits?
Yes, San Mateo Construction pulls all required Costa Mesa permits and manages inspections as part of the renovation contract. We also handle existing-condition reviews for Westside homes where older additions may not match current setback or zoning rules. Estimates are free at (855) 901-7266.
Brands We Service in Costa Mesa
We work across 50+ manufacturer partners, including James Hardie siding, Plant Prefab and Boxabl for ADU construction, and Tuff Shed for accessory structures. Parts and samples are ordered directly through our supplier accounts, which keeps lead times predictable on Costa Mesa jobs. See our brands for the full portfolio.
See the difference
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AfterPricing for Remodeling Company in Costa Mesa, CA
| Service | Typical range in Costa Mesa |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Small Kitchen Remodel | $9,000 – $20,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Small Bathroom Remodel | $5,000 – $12,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Paver Driveway Installation | $7,000 – $18,000 |
| Roof Replacement | $8,000 – $20,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Vinyl Fence Installation | $3,500 – $9,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
Prices in Costa Mesa push upward when a Westside bungalow has non-conforming additions that require extra plan review, or when salt-air damage means exterior trim and flashing need replacement rather than repair. Every quote we give is a written line item price, fixed before work starts, with no change orders unless you change the scope.
Neighborhoods We Serve in Costa Mesa
Our crews work across all three Costa Mesa ZIP codes on a regular basis. Response time for estimates in most of the city runs a few business days, with faster scheduling on the Eastside where street access and parking are easier.
- Westside Costa Mesa (92627)
- Mesa Verde (92626)
- South Coast Metro (92626)
- College Park (92626)
- Eastside Costa Mesa (92627)
Service Area – Cities Near Costa Mesa
San Mateo Construction also serves homeowners in the surrounding Orange County cities. We work regularly in Newport Beach, CA, Fountain Valley, CA, Huntington Beach, CA, and San Joaquin Hills, CA. If you’re just outside Costa Mesa, call us and we’ll confirm coverage for your street.
Serving Costa Mesa, CA — Our Local Coverage Area
We’re based in the Costa Mesa area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs About Remodeling Company in Costa Mesa
Most Costa Mesa projects schedule a site visit within a few business days and start work within 2 to 6 weeks, depending on permit review times. Simpler scopes like backsplash or vanity installation move faster. Call (855) 901-7266 to check current availability.
Some Eastside communities near South Coast Metro have HOAs that require design review before exterior changes like windows, siding, or fencing. We handle the contractor paperwork and help you submit plans in the format your HOA wants.
Yes, we take on condo interior remodels and select multi-family work throughout Costa Mesa, including units in the Eastside complexes near the airport. Interior projects are handled with quiet-hours scheduling in mind for shared walls.
What happens when you call
- 1A real person answersNo phone trees — talk to a local construction pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you — the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Costa Mesa Customers Say
"Weekend rate was higher, which they told me up front and I was fine with. What I wasn't expecting was for someone to actually come out on a Sunday."
— Michelle Norris"He caught an error in the engineer's drawings before it got framed, which would have been an expensive thing to discover later."
— Cole Hoffman"Every inspection passed first time. The building department clearly knows him and that made the whole process easier."
— Ernesto Martinez