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 Westminster, CA
Home renovation in Westminster runs through older 1950s to 1970s ranch and stucco tract homes that were built for a different era. We handle stripped galvanized plumbing, aging electrical panels, slab cracks, and the rear additions and garage conversions that multi-generational households keep asking for. If you’re planning a remodel, addition, or full gut renovation, call our Westminster team at (855) 901-7266 and we’ll walk the property with you.
Why Westminster Homes Are Different
Westminster’s housing stock is largely single-story ranch and stucco tract homes from the postwar boom. In ZIP codes 92683, 92684, and 92685, we routinely open walls and find original knob-and-tube wiring remnants, galvanized supply lines that have corroded to half their inside diameter, and slab foundations that have settled enough to crack tile and bind doors.
The climate adds its own list. Westminster sits in a coastal-inland band of Orange County with mild wet winters and long dry summers. There’s little freeze stress, but dry-rot in older stucco and wood framing is common, especially on west and south exposures. Termite damage shows up regularly in the older wood-framed homes. Sun-faded exterior paint means a fresh coat is rarely cosmetic only; it’s often the first layer of protection before dry-rot gets worse.
A large share of Westminster’s remodel work is also tied to Little Saigon, anchored along Bolsa Avenue in 92683. Restaurant and retail build-outs there regularly need grease-trap and Type I/II hood upgrades, plus crews who can coordinate with inspectors and owners in both Vietnamese and English. That same bilingual reality carries into residential work, where extended-family households often add on rather than move.
Styles & brands we work with
Our Main Westminster Services
Two services drive most of our Westminster calls: full general contracting for multi-trade projects and home remodeling for kitchens, baths, and interior reconfigurations. Each has its own dedicated Westminster page below.
General Contractor in Westminster
When a Westminster job spans framing, roofing, plumbing, electrical, and finishes, one general contractor should own the schedule and the punch list. Our team manages every trade under a single contract, which matters in older tract homes where a plumbing rough-in change cascades into drywall, paint, and flooring. Homes from the 1960s rarely remodel in a straight line, and coordinating four separate crews through that is where projects stall. For the full scope and process, see our dedicated page: General Contractor in Westminster.
Home Remodeling in Westminster
Westminster kitchens and bathrooms hide their age behind cabinet faces. We regularly find water-damaged subfloor under dishwashers, outdated venting, and tile set directly on drywall that has wicked moisture for thirty years. Remodeling here means correcting the house before dressing it: re-venting, re-flashing, waterproofing with Schluter systems, then installing new cabinetry, counters, and fixtures. For kitchen and bath specifics, see Home Remodeling in Westminster.
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 Westminster
Home renovation in Westminster usually means opening up a 1960s ranch, fixing what the original builder never anticipated, and reconfiguring the floor plan for a multi-generational household that has outgrown the original three-bedroom layout. The work here is less about cosmetics and more about making an aging tract home function like a newer one: re-piping, rewiring, re-leveling, and rebuilding. If you want one team to manage the entire renovation, start with our Home Renovation overview.
Home Renovation Contractors
Signs you need it
You have multiple systems failing at once: corroded galvanized pipes, a panel that cannot support new circuits, and slab settlement cracking tile and drywall.
What it costs in Westminster
Whole-home renovation work in Westminster typically runs from $45,000 to $130,000 depending on square footage and how much of the original plumbing, electrical, and framing must be replaced.
How we do it
We document the existing condition, pull permits, demo to the studs where needed, rough in new plumbing and electrical, pass inspections, then close walls and install finishes.
Home Renovation Companies
Signs you need it
You have a list of projects that touch multiple trades and cannot find a single company willing to coordinate the whole scope.
What it costs in Westminster
Most full-scope renovation projects in Westminster fall between $45,000 and $130,000, with kitchens alone at $14,000 to $45,000.
How we do it
We assign one project lead, sequence trades in the correct order, hold subs to one schedule, and walk the site with you at each inspection milestone.
What Home Renovation Costs in Westminster
| Item | Typical range in Westminster |
|---|---|
| Whole-home renovation | $45,000 – $130,000 |
| Kitchen remodel | $14,000 – $45,000 |
| Bathroom remodel | $9,000 – $28,000 |
How long does a whole-home renovation take in Westminster?
Most whole-home renovations run 10 to 16 weeks depending on permit review and how much of the original plumbing and electrical must be replaced. Kitchen-only work runs 4 to 8 weeks; additions run longer.
Will the price change once the renovation starts?
It shouldn’t if the contractor writes a fixed line-item scope. We price from the existing condition and spec, then hold that number unless you change the scope or we uncover damage that requires a written change order. Call (855) 901-7266 for a fixed quote.
Brands We Service in Westminster
We carry and install Boral roofing products, PGT impact windows, and CGI windows in Westminster projects. Parts and samples for these lines are stocked through our local supply network, so we rarely wait on a specialty order. See our brands for the full portfolio.
See the difference
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AfterPricing for Remodeling Company in Westminster, CA
| Service | Typical range in Westminster |
|---|---|
| Kitchen remodel | $14,000 – $45,000 |
| Small kitchen remodel | $9,000 – $20,000 |
| Cabinet installation | $4,000 – $13,000 |
| Countertop installation | $2,000 – $6,500 |
| Bathroom remodel | $9,000 – $28,000 |
| Walk-in shower installation | $4,500 – $12,000 |
| Roof replacement | $8,000 – $20,000 |
| Window replacement | $4,500 – $15,000 |
| Paver driveway installation | $7,000 – $18,000 |
| ADU construction | $90,000 – $220,000 |
| Garage conversion | $30,000 – $80,000 |
| Home addition | $45,000 – $130,000 |
Westminster prices climb when a 1960s home needs full re-piping, panel replacement, or slab correction underneath an addition or ADU. We write fixed line-item quotes so the price you approve is the price you pay, unless you change the scope in writing.
Neighborhoods We Serve in Westminster
Our crews work across Westminster, from the Little Saigon corridor along Bolsa Avenue to the residential blocks east and west of the 405. We know which neighborhoods have HOA review for exterior changes and which tract parcels need setback variances for ADU work.
- Little Saigon (Bolsa Avenue corridor, 92683)
- Midway City border (92683)
- Westminster Mall area (92683)
- East Westminster (92684)
- North Westminster (92685)
We schedule estimates across Westminster within a few business days and stage material deliveries to avoid narrow street and alley access problems on older blocks.
Service Area – Cities Near Westminster
San Mateo Construction serves Westminster and the surrounding Orange County cities. Our crews are scheduled into Midway City, CA directly for jobs along the shared border, plus Garden Grove, CA, Stanton, CA, and Huntington Beach, CA for projects that spill into adjacent neighborhoods. One team, one contract, one schedule across the area.
Serving Westminster, CA — Our Local Coverage Area
We’re based in the Westminster 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 Westminster
Yes. We pull City of Westminster building permits for all structural, electrical, plumbing, and mechanical work, and we schedule the inspections. If your project is in an HOA with architectural review, we’ll prepare the submittal package and coordinate with the association.
Most projects start within 2 to 5 weeks after the estimate, depending on permit turnaround and material lead times. Our scheduling team is based in Westminster and coordinates the same crew from demo through final inspection.
Yes. We regularly run whole-house renovations where the roofing, siding, and windows are replaced on the same schedule as the kitchen and bathroom remodel. One general contractor owns the entire sequence, including the flashing and waterproofing where exterior walls meet interior remodels.
Call San Mateo Construction at (855) 901-7266 for a free, line-item estimate on your Westminster renovation. We’ll walk the property, identify what needs correcting underneath the finishes, and price the whole scope in writing.
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 Westminster Customers Say
"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"He was upfront about a soil issue that added cost early rather than absorbing it and surprising us at the end."
— Katie Thompson