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
Fast, Reliable General Contractor Across Westminster
Finding a general contractor in Westminster who understands the city’s specific housing stock and permitting landscape is the difference between a project that runs on schedule and one that stalls for months. We’ve worked extensively through the 92683, 92684, and 92685 ZIP codes, and we know what happens when a 1960s ranch home gets opened up: unpermitted additions surface, framing needs retrofit, and the county gets involved more often than homeowners expect. Ken Stafford, who leads Milpitas Construction, has seen every version of this scenario. Call us at (877) 752-4194 and we’ll walk you through what your specific house actually needs, not a generic estimate.
Why Milpitas Construction Is Westminster’s Preferred General Contractor Company
Westminster homeowners keep calling us back because we scope the job correctly the first time. That starts with permit history research on mid-century homes, which most contractors skip entirely. On a 1950s ranch off Bolsa Avenue in central Westminster, our crew opened a wall for a family-room addition and found unpermitted electrical and a missing shear wall behind the stucco. We pulled county permits, brought the framing up to current code, and added a legal ADU with proper setbacks, using KraftMaid cabinets and Kohler fixtures for the new bath, then walked the owner through every line of the draw schedule before inspection sign-off. That’s not a story we tell to impress anyone; it’s just how Westminster houses work. Homeowners here deal with stucco-over-mid-century framing, decades of DIY additions, and a permit trail that rarely matches the actual floor plan.
Ken Stafford runs every Westminster project through the same lens: as-built discovery before quoting, county-level research when acreage is involved, and material selection that holds up to Santa Ana wind-driven ash and occasional winter dry-rot. We don’t hand off a Westminster remodel to a rotating cast of subcontractors. One crew, one point of contact, one contract that covers the whole scope from roof to kitchen counter.
Styles & brands we work with







Residential General Contractor in Westminster
Residential General Contractor work in Westminster means remodeling homes that were mostly built between 1950 and 1975, when framing practices, electrical systems, and foundation standards were very different from today’s code. A typical Westminster kitchen remodel runs $14,000 to $45,000, and a full bathroom remodel runs $9,000 to $28,000. But those numbers shift when we open up a wall and find knob-and-tube wiring, a missing shear panel, or a family-room addition that was never permitted. We price the legalization into the bid upfront, so you’re not hit with a change order mid-project.
Working With Mid-Century Ranch Layouts
The single-story tract ranch dominates Westminster. These homes have specific structural quirks: post-and-beam ceilings that hide wiring, stucco exteriors that crack along window lines after decades of sun, and attached garages that were never designed for modern loads. When we plan a kitchen remodel or room addition on this stock, we account for seismic retrofits and electrical service upgrades before we ever order cabinets.
Permit Discovery Before the First Hammer Swing
Westminster’s unpermitted addition problem is real. Decades of homeowners expanded family rooms and added ADU-style structures without pulling permits. Before we quote a remodel, we run a permit history check through the city and county records. If we find unpermitted work, we fold the legalization scope into the bid, including plan revisions and inspection scheduling. Skipping this step is how Westminster remodels turn into six-month ordeals.
Hire a General Contractor in Westminster
Hire a General Contractor in Westminster for any project that touches structure, electrical, plumbing, or roofing, because this city’s housing stock is old enough that almost every job finds something underneath the surface. A home addition in Westminster runs $45,000 to $130,000 depending on square footage and foundation scope. ADU construction runs $90,000 to $220,000 when we’re building detached units with proper setbacks and utility connections. A roof replacement runs $8,000 to $20,000 depending on whether we’re tearing off old layers and addressing dry-rot sheathing underneath.
When the Scope Outgrows a Handyman
Anything that requires a structural calculation, a county permit, or coordination between multiple trades belongs with a general contractor. In Westminster, that includes kitchen and bath remodels, room additions, ADUs, roof replacements, and any work that reveals unpermitted conditions. Our General Contractor team handles all phases under one contract, so you’re not playing phone tag between an electrician, a plumber, and a roofer.
County vs. City Permitting on Acreage
Some Westminster properties, especially the pockets east of Beach Boulevard toward the Santa Ana River channel, fall under county-level building department jurisdiction rather than city. If your lot has a septic system or a well, or if you’re planning an outbuilding or detached ADU with setback questions, we confirm which authority governs your address before we draw plans. Building on the wrong assumption adds weeks to the permit timeline. We don’t guess; we verify.
Trusted Brands We Service in Westminster
Westminster homeowners want materials they can trust, not whatever’s on sale at a big-box store. We spec contractor-grade product lines by name: Jerith aluminum fencing for the property line along Bolsa Avenue traffic, Belgard pavers for driveways and patios that hold up to Santa Ana sun and occasional heavy rain, and Bufftech vinyl fencing when a low-maintenance perimeter matters more than a metal profile. We order these directly through our supply channels, which means shorter lead times for Westminster projects and no markup surprises. When we quote a paver patio or a fence replacement, the brand is written into the line item. You’ll know exactly what’s going into your home and onto your property before we start digging.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in Westminster Homes
- Unpermitted additions baked into the floor plan. Westminster’s 1950s-to-1970s ranch stock was expanded constantly over decades, often without permits. When we open walls or pull original blueprints, we regularly find family rooms and extra bedrooms that don’t exist in county records. We legalize those before touching the remodel scope.
- Electrical panels and wiring that predate modern code. Homes built before 1975 in Westminster often still run on 100-amp panels or original cloth-wrapped wiring. Any kitchen remodel, ADU addition, or room expansion that adds load requires a service upgrade. We include that in the bid, not as a surprise line item later.
- Dry-rot and stucco damage from seasonal rains and Santa Ana-driven moisture. Westminster’s semi-arid climate means long dry stretches, then brief winter rain that seeps into old stucco cracks and window frames. By the time a homeowner notices, the damage is already into the framing. Our exterior scopes always include a sheathing inspection under the stucco.
- Commercial tenant-improvement work along the Little Saigon corridor. Bolsa Avenue’s older stucco-and-tile commercial shells need constant tenant build-out work, and those projects require careful coordination with the small-business owners and inspection timelines around the busiest retail district in Westminster. We’ve done enough of these to know how to schedule inspections around business hours.
Pricing for General Contractor in Westminster, CA
Westminster pricing is driven by the age of the housing stock, not by the prestige of the ZIP code. Here’s what you’re looking at for the most common scopes:
| Project Type | Typical Westminster Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Roof Replacement | $8,000 – $20,000 |
The range depends on whether we’re doing a cosmetic refresh or opening walls to structural level, whether unpermitted work needs legalization, and whether your property falls under county or city permitting. Every Westminster estimate we produce is a written line-item quote, not a ballpark. Call (877) 752-4194 and we’ll schedule a free on-site walkthrough. You’ll get real numbers, not a sales pitch.
We Also Serve Cities Near Westminster
Our General Contractor in Westminster service area extends throughout northwestern Orange County. We regularly work in Midway City, Garden Grove, Stanton, and Huntington Beach, which means we know how Westminster’s permit and housing-stock challenges compare to the neighboring jurisdictions. If you’re in Westminster proper or just across the city line, the same crew and the same single-contract accountability apply.
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 General Contractor in Westminster
Certain Westminster properties, especially those with septic systems, wells, or agricultural zoning remnants near the eastern edges of the city, fall under Orange County building jurisdiction rather than the City of Westminster. The county has different setback requirements, different inspection timelines, and different plan-check standards than the city. We confirm which authority governs your specific parcel before we draft any scope, because guessing wrong adds weeks to the permit process and thousands in rework.
We don’t walk away from them, and we don’t pretend they don’t exist. Our process is straightforward: we document the unpermitted scope, bring it to the appropriate building department (city or county, depending on the lot), produce as-built drawings, and fold the legalization work into the overall remodel bid. That includes any structural corrections, electrical upgrades, or framing retrofits the inspector requires. The goal is a fully permitted, fully legal final product, and that’s what we deliver. Call (877) 752-4194 if you suspect your home has unpermitted work; we’ll tell you what legalization actually costs.
A detached ADU in Westminster typically runs $90,000 to $220,000, depending on size, utility runs, and whether you’re using prefab or stick-built construction. We work directly with modern prefab manufacturers including Abodu, Dvele, and Plant Prefab, which can shorten the build timeline significantly. Setbacks, sewer lateral connections, and electrical service upgrades are the three biggest cost variables. We’ll scope all three before you sign anything.
Santa Ana wind events push ash and fine dust into every rough opening, and the brief winter rain that follows can drive moisture into old stucco cracks and window frames. That combination creates dry-rot conditions in the sheathing and framing that are easy to miss if a contractor isn’t looking for them. Our exterior scopes always include a sheathing inspection under the stucco, and we schedule exterior rough-in work around the wind season when possible. It prevents pre-punch-list failures on stucco and roofing that would otherwise slow down occupancy.
A Westminster kitchen remodel in a 1960s ranch typically runs $14,000 to $45,000, and our bids include everything from cabinet tear-out to final inspection: demo, structural framing if walls are moving, electrical service upgrade if needed, plumbing rough-in, drywall, flooring, cabinet installation from brands like KraftMaid, countertop fabrication (Cambria, Silestone, or Caesarstone), backsplash, and fixture installation from Kohler or Grohe. The bid is a written line-item quote, and the price doesn’t change once work starts unless you change the scope. Call (877) 752-4194 for a free on-site estimate.
Written by Ken Stafford, Owner at Milpitas Construction, serving Westminster and surrounding Orange County communities.