ADU Company in Westminster, CA
Kitchen remodeling in Westminster CA often means reworking a 1950s or 1960s tract home with a closed-off floor plan, original plumbing, and a family that actually cooks. We see this in Little Saigon every week: homeowners want a kitchen built for heavy wok cooking, with venting that moves real air, not a decorative hood. Bungalow ADU Builders handles the full scope, from opening walls to pull permits and finishing cabinets, so you are not coordinating three trades. Call (866) 730-4828 to schedule a free estimate.
Why Westminster Homes Are Different
Westminster’s housing stock came up fast in the post-war boom, mostly between 1955 and 1975. That means slab foundations, small lots, and galley kitchens that were designed for one cook, not the multigenerational households common across 92683, 92684, and 92685. Many homes still have their original single-story footprint, which is exactly why garage conversions and second-story additions are common ADU paths here. In Little Saigon, rear detached garages often sit on alley access, so any ADU plan has to account for utility routing through the alley and parking requirements the city will enforce. The coastal climate is forgiving – we rarely need heavy HVAC – but the marine layer does create moisture in enclosed garages, which is why we insist on proper ventilation and moisture barriers before any conversion finishes. And because many Westminster kitchens serve serious cooks, we plan for higher-CFM venting, dedicated circuit loads for wok induction burners or gas lines, and cabinets that hold commercial-size cookware without sagging.
Our Main Westminster Services
Westminster homeowners call us about two things most often: building an ADU from a rear garage or second-story addition, and remodeling a bathroom in a home that still has its original 1960s-era layout.
ADU Builders in Westminster
ADU work in Westminster usually starts with a detached garage off an alley, which changes how you think about setbacks, parking, and where the water and sewer lines tie in. The mild climate means a well-insulated unit works year round, but city permitting still expects proper moisture barriers on garage slab conversions. This is what we do every day, and we have the details on our ADU Builders in Westminster page.

Bathroom Remodeling in Westminster
Bathrooms in Westminster’s original tract homes are often cramped, with cast iron drain lines that have served since the Eisenhower administration. Remodeling them means addressing waterproofing properly, especially in homes near the coast where the marine layer keeps bathrooms damp longer than inland homes. We handle the full tear out and rebuild. Read the details on our Bathroom Remodeling in Westminster page.

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.
Kitchen Remodeling in Westminster
Kitchen remodeling in Westminster CA often comes down to one thing: the original 1960s galley kitchen cannot keep up with a multigenerational household that cooks daily. We remove the wall that makes the kitchen feel like a hallway, re-route the plumbing and electrical that has been buried for sixty years, and build a kitchen that vents properly, stores real cookware, and adds value to the property. If you are also thinking about an ADU, this is the moment to plan both under one permit strategy. For more on our approach, see Kitchen Remodeling.
Galley Kitchen Open-Up
Signs you need it
You have to shuffle sideways past another person, the kitchen has no sightline to the dining area, or you cook alone while everyone else is in the living room.
What it costs in Westminster
Most Westminster galley kitchen open-ups run between $28,000 and $45,000, depending on whether the wall you remove is load bearing and how much plumbing gets relocated.
How we do it
We start with a structural assessment of the wall, pull the permit, frame the new opening with proper header support, then re-route plumbing and electrical before finishing with cabinets, counters, and flooring.
Heavy-Cooking Kitchen Build-Out
Signs you need it
Your household cooks with a wok or deep-frying frequently, your current vent hood recirculates instead of venting outside, or your cabinets are buckling under the weight of pots and jars.
What it costs in Westminster
A full heavy-cooking kitchen with high-CFM venting, reinforced cabinetry, and dedicated circuits typically lands between $38,000 and $60,000 in Westminster.
How we do it
We size the vent run for actual cooking load, add a dedicated circuit for high-output burners or induction, upgrade cabinet boxes to hold real weight, and finish with surfaces that stand up to daily heat and oil.
What Kitchen Remodeling Costs in Westminster
| Item | Typical range in Westminster |
|---|---|
| Galley kitchen open-up | $28,000 – $45,000 |
| Heavy-cooking kitchen build-out | $38,000 – $60,000 |
| Full custom kitchen (high-end fixtures and surfaces) | $60,000 – $100,000 |
How long does a Westminster kitchen remodel take?
Most kitchen remodels in Westminster run six to ten weeks from demo to final walkthrough, depending on structural work and whether the city needs multiple inspections. Call (866) 730-4828 for a realistic timeline on your specific floor plan.
Will my Westminster kitchen remodel need a permit?
Yes. Any job that moves walls, changes plumbing, or alters electrical needs a city permit. We pull permits for every Westminster kitchen remodel and schedule the inspections as part of the job.
Brands We Service in Westminster
We work with the ADU and finish brands Westminster homeowners already research: Abodu, Plant Prefab, and Tuff Shed for structure, and James Hardie fiber-cement for exteriors that shrug off the coastal moisture. Parts and finish samples are available locally, which keeps selections moving. See our brands.
Pricing for ADU Company in Westminster, CA
| Service | Typical range in Westminster |
|---|---|
| Galley kitchen open-up | $28,000 – $45,000 |
| Heavy-cooking kitchen build-out | $38,000 – $60,000 |
| Full custom kitchen | $60,000 – $100,000 |
| Bathroom remodel (hall bath) | $18,000 – $32,000 |
| Bathroom remodel (primary bath) | $30,000 – $50,000 |
| Bathroom remodel (aging-in-place) | $22,000 – $40,000 |
| ADU garage conversion | $120,000 – $250,000 |
| ADU above garage (new second story) | $275,000 – $400,000 |
| ADU second-story addition over existing home | $300,000 – $450,000 |
| ADU detached new build | $175,000 – $350,000 |
Westminster prices climb when the job requires alley-access utility routing, structural work on older slabs, or upgrading the electrical panel to support a heavy-cooking kitchen. We give every Westminster homeowner a written line-item quote up front, and we do not change the number once work starts.
Neighborhoods We Serve in Westminster
We work across the entire city, with the highest concentration of jobs around the Little Saigon core where multigenerational ADU plans and heavy-cooking kitchens are most common. Typical response time for a first estimate visit anywhere in Westminster is one to three business days.
- Little Saigon
- Westminster Village
- Northeast Westminster (92683)
- Midway City border area
- South Westminster (92685)
Service Area – Cities Near Westminster
Bungalow ADU Builders serves Westminster and the surrounding Orange County communities. If you are one city over, we can still help. We do regular work in Midway City, CA, Garden Grove, CA, Stanton, CA, and Huntington Beach, CA.
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 ADU Company in Westminster
Yes. We work across 92683, 92684, and 92685, including every neighborhood inside those boundaries. When you call, tell us your cross streets and we will confirm the next available estimate slot for your area.
Westminster enforces standard Orange County setback and utility rules, but alley-access garages in Little Saigon often trigger extra review for parking access and utility routing. We handle that paperwork as part of every job, so you do not sit in line at the counter.
Yes, and in Westminster it often makes financial sense to do both under one permit package, especially if the ADU kitchen shares a wall or utility riser with the main house kitchen. We coordinate the full scope with one project manager.
What happens when you call
- 1A real person answersNo phone trees — talk to a local adu 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
"Sound insulation between the unit and the main house is better than I expected. You genuinely cannot hear the tenant."
— Alicia Ingram"The kitchenette layout he suggested made better use of the space than the one on our original sketch."
— Kelly Schaefer"Garage conversion to a one bedroom unit. He handled the plans, the city submittal, and every round of corrections. Took six months from first meeting to final inspection and he never once made the permit process my problem."
— Wade Pruitt