Fast, Reliable Bathroom Remodeling Across Westminster
A bathroom remodel in Westminster typically runs $14,000 to $32,000 for a full gut and rebuild, with smaller refreshes starting around $8,500. We finish most Westminster bathrooms in 3 to 5 weeks, permit time included. If you’re planning a bathroom remodel in one of Westminster’s 1950s-to-1970s tract homes, the biggest variable is what’s hiding behind the walls: galvanized supply lines, aluminum wiring, or a failed shower pan. That’s exactly what we plan for before we write your quote. Call (866) 730-4828 for a free estimate, and we’ll walk your Westminster home first.
Why Bungalow ADU Builders Is Westminster’s Preferred Bathroom Remodeling Company
We know Westminster’s housing stock the way only a local crew can. The tract houses off Bolsa Avenue, the older neighborhoods around Magnolia Street, the 92683 and 92684 corridors: these homes share a construction era, which means they share predictable failure modes. Galvanized pipes that rust from the inside. Cast iron drain lines that crack when disturbed. Subfloors that have been soaking up shower pan leaks since the Nixon administration. Most remodelers write a quote based on what they can see. We write ours based on what Westminster’s homes actually contain.
Our Bathroom Remodeling team has spent enough hours inside Westminster’s slab-on-grade tract houses to know what code enforcement in the city will flag and what it won’t. That knowledge keeps your permit moving and your change orders honest. Homeowners across Westminster tell us the same thing: the quote was clear, the surprises were documented before work started, and the finished bathroom looks like it belongs in a home that’s finally been brought up to date.
Nate Calloway runs the company with a simple rule: inspection first, then pricing. No allowances pulled out of thin air, no vague line items. When we open a wall and find something the quote didn’t cover, we photograph it, price it, and get your written approval before a single new part goes in.
Our Bathroom Remodeling Services in Westminster
Full Bathroom Gut and Rebuild
For homes in Westminster’s 1950s-to-1970s tract developments, a full gut usually means removing everything down to the studs and slab. That’s where we uncover the real story: rotted subfloor, corroded supply lines, undersized drain pipe. We replace what’s failed, upgrade what code now requires, and build back with waterproofing systems that handle Westminster’s marine layer without trapping moisture behind tile.
Shower and Tub Replacement
Westminster homes typically have original cast iron tubs or fiberglass shower pans that have outlived their useful life. We swap them for properly sloped, waterproofed shower bases and install new valves, mixing systems, and drain assemblies. In the 92683 and 92685 neighborhoods, we regularly see failed shower pans that have been leaking into the slab for years before anyone notices. We check the subfloor before we set the new pan, every time.
Plumbing Wall and Drain Line Upgrades
This is the part of the job most Westminster remodels skip, and it’s the part that comes back to bite. In Little Saigon especially, the primary bath often shares a plumbing wall with the kitchen. Heavy cooking means high-volume sink use. A 1.5-inch drain that worked fine in 1968 can’t handle simultaneous shower and wok-station demand. We upsize to 2-inch when the layout calls for it, and we check the shared wall during demo so the change order isn’t a surprise.
Garage-Conversion and ADU Bathroom Remodeling
Westminster has a lot of garage-conversion ADUs, especially where alley-access garages sit at the rear of the lot. A bathroom inside a garage conversion has its own requirements: moisture barrier, proper venting, and a drain system that ties into the main line correctly. Bungalow ADU Builders handles the full ADU lifecycle, from shell to finished interior, so when the bathroom in a Westminster ADU needs a remodel, the same crew that understands the structure is the crew that does the work.
What happens when you call
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A real person answersNo phone trees — you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Westminster
Westminster homeowners ask us about specific products all the time, especially in homes with an existing ADU or a planned garage conversion. We work with Boxabl and Plant Prefab systems on the ADU side, and for exterior cladding we’re familiar with James Hardie fiber-cement, which handles Orange County’s damp marine layer better than wood siding. On the bathroom side, we stock and install common valve bodies, drain assemblies, and waterproofing membranes from manufacturers we trust, so Westminster jobs don’t stall waiting on parts. Call (866) 730-4828 and we’ll tell you what we’d specify for your house.
Common Bathroom Remodeling Problems We See in Westminster Homes
- Galvanized supply lines corroded shut. The original steel pipes in a 1960s Westminster home rust from the inside out. By the time you notice low water pressure in the shower, the pipe is mostly closed. We plan for PEX repipe in our quotes for homes of this era.
- Aluminum wiring that can’t support a modern bath. A new exhaust fan, GFCI outlets, and a heated floor pull more load than 1960s aluminum branch wiring was designed for. Westminster code often requires a panel upgrade or circuit rework once the walls are open.
- Cast iron drain lines that crack during demo. Slab-on-grade homes in the 92684 and 92685 zip codes frequently have original cast iron buried under the slab. Disturbance during a shower pan replacement can crack it, and that’s a second demolition phase. We inspect before we commit.
- Mold behind tile from missing vapor barriers. In garage-conversion bathrooms especially, Westminster’s marine layer pushes moisture through unsealed walls. Without a proper barrier, new tile can hide mold within a year. We check for barrier gaps before we close any wall.
Pricing for Bathroom Remodeling in Westminster, CA
A straightforward fixture swap in Westminster runs $8,500 to $12,000. A full gut and rebuild of a standard 5×8 hall bath typically costs $14,000 to $22,000. Master baths with custom tile, curbless showers, and plumbing wall upgrades run $22,000 to $32,000. The gap between the low and high end comes down to what’s behind the walls. A home with intact copper supply lines and a solid subfloor is a different job than one with galvanized pipe and a rotted joist. We price the known scope in writing, write allowances for the predictable unknowns, and document every change order with photos and a line-item cost before work proceeds. Estimates are free. Call (866) 730-4828 to schedule a walkthrough.
We Also Serve Cities Near Westminster
Our crews work throughout western Orange County, so if you’re in Midway City, Garden Grove, Stanton, or Huntington Beach, we can handle your bathroom remodel with the same local knowledge we bring to Westminster. Each city has its own code quirks and housing era, and we know them all. Call (866) 730-4828 and ask specifically about your neighborhood.
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 – Bathroom Remodeling in Westminster
Yes, in most cases. Westminster code requires a permit for any work that moves plumbing, alters the drain system, or changes electrical wiring. A true fixture-only swap where you’re replacing a toilet or faucet with no pipe movement may not trigger a permit, but anything involving the shower valve, drain line, or new circuits does. Call (866) 730-4828 and we’ll tell you what your specific project needs.
We document it, price it, and get your written approval before we proceed. No surprise work ever happens on our Westminster jobs without a change order in your hand. That’s Nate Calloway’s rule, and it’s been the rule since day one. On a 1968 tract house off Bolsa Avenue near Magnolia Street, our crew opened the hall bath to find the original galvanized supply lines had corroded shut and the subfloor was rotted from a failed shower pan, so we wrote a change order for PEX repipe and joist sistering before any tile went down. We also upsized the shared drain to 2-inch to serve both the new shower and the adjacent kitchen’s wok sink, a detail we caught because we inspected the kitchen wall during demo.
Because the primary bath frequently shares a plumbing wall with the kitchen, and Little Saigon kitchens work hard. Wok stations and high-volume sinks push water through the same drain line that serves the shower. A 1.5-inch line that met code in 1965 can’t handle both at once. We upsize the shared drain to 2-inch when we see this condition, and we don’t bury it as a surprise. Call (866) 730-4828 for an exact quote on your home’s layout.
Yes. Many Westminster ADUs are garage conversions, often on alley-access lots where the garage sits at the rear of the property. These bathrooms need proper moisture barriers, exterior venting, and a drain tie-in that complies with the city’s ADU-specific plumbing requirements. Bungalow ADU Builders handles the full ADU scope, so we’re familiar with how these systems need to be built. Call (866) 730-4828 and we’ll take a look at your conversion.
Three to five weeks, depending on what demo reveals. A straight fixture replacement with no hidden damage finishes in about three weeks. A full gut with a plumbing wall upgrade, joist repair, and custom tile runs closer to five. The permit process in Westminster adds about a week to the front end, which we build into the schedule. Call (866) 730-4828 for a timeline specific to your project.
Written by Nate Calloway, Owner at Bungalow ADU Builders, serving Westminster since our first jobs in Orange County.