Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Bathroom Remodeling Across Westminster
A full bathroom remodel in Westminster typically costs $9,000-$28,000, with most slab-on-grade ranch projects landing in the $12,000-$18,000 range once plumbing rough-in and electrical upgrades are factored. We’re Rowan Construction Group, and our crews work Westminster’s post-war tracts regularly - from the Bolsa Avenue corridor near Little Saigon to the quieter neighborhoods off Beach Boulevard and the 405. Scheduling and dispatch run through our Los Angeles office, but the trucks that roll to Westminster carry PEX cutters, asbestos abatement certifications, and permit packets pre-filled for Orange County Building. Call (657) 227-2502 to schedule your free estimate - we’ll bring a written price before any work starts, every time.
Why Rowan Construction Group Irvine Is Westminster’s Preferred Bathroom Remodeling Company
We’ve delivered 4,000-plus projects since 2007, and a measurable share of them have been in Westminster’s aging ranch stock - the 1,100-square-foot three-bedrooms with original pink tile, galvanized supply lines choked with scale from the region’s moderately hard water, and electrical panels that can’t handle a modern heated floor. Westminster homeowners find us because they read the three-star reviews first, and those reviews mention the same things: the photo record we leave behind, the signed change order before any extra dollar gets spent, and the inspection sign-off before tile goes up.
Our response time to Westminster runs same-day or next-day for estimates, depending on Bolsa Avenue corridor traffic patterns and whether we’re coming off a finish in Huntington Beach or Fountain Valley. The live person who answers (657) 227-2502 24/7 can confirm the window while you’re on the call. We know the local inspectors by name, the asbestos-abatement contractors who can mobilize fast for Westminster’s 1970s mastic floors, and the HOA architectural committees in the newer master-planned pockets off Goldenwest Street that want submittals 30 days before rough-in.
Under Clause 1 of The Haven Standard, the price is written before anyone starts. Under Clause 3, no change proceeds without a signed change order. That’s the discipline that has kept our projects within a few percent of the agreed cost across every trade, Bathroom Remodeling included.
Our Bathroom Remodeling Services in Westminster

Full Bathroom Remodeling
In Westminster’s 1950s-1970s slab tracts, a full gut is rarely just tile and fixtures. The original cast-iron drain stack and that undersized 50-60 amp panel are usually the real budget drivers. We open the wall, photograph what we find, and deliver a written scope that sequences the plumbing rough-in upgrade and any subpanel work before the first shower valve gets set. A typical full bathroom remodel in Westminster runs $9,000-$28,000, with the lower end covering cosmetic refreshes in smaller baths and the upper end reflecting the electrical and plumbing infrastructure work these homes often need.

Walk-In Showers & Shower Remodeling
Walk-in shower installation in Westminster costs $4,500-$12,000 depending on whether we’re cutting a curb into the slab or working with an existing pan. The flat, low-lying coastal plain here means some homes fall within FEMA-designated flood zones - new curbless entries in those areas need moisture-barrier detailing that adds cost and permitting complexity not faced in higher-elevation neighboring cities. We specify Schluter-Kerdi or equivalent membrane systems, document the flood-zone compliance in the permit packet, and don’t set tile until the inspector signs the rough.

Tub-to-Shower Conversion
A tub-to-shower conversion in Westminster runs $3,500-$10,000. The common failure mode we see: a homeowner buys a beautiful acrylic shower base without checking the slab drain location against the new unit’s rough-in dimensions. In Westminster’s ranch tracts, that drain is often 14 inches from the sidewall - fine for a 1960s steel tub, wrong for most modern showers. We measure twice, specify once, and if the drain needs to move, that change order is written and signed before the concrete gets cut.

Vanities, Tile & Fixtures
Bathroom vanity installation in Westminster costs $800-$3,000, with tile and fixture packages running additional. We source KraftMaid and Wellborn cabinets, Kohler and Grohe fixtures, and stock common replacement parts locally so Westminster customers aren’t waiting three weeks for a cartridge or escutcheon. On a 1968 ranch off Bolsa Avenue near Little Saigon, we opened a hall bath and found the classic Westminster stack: 1970s vinyl over asbestos floor mastic, a galvanized supply branch that had scaled shut in the city’s moderately hard water, and a 100-amp panel already full. We pulled permits, abated the mastic, ran a new PEX rough-in, set a Kohler Archer tub with a Moen Posi-Temp valve, and tiled to a KraftMaid vanity - with inspection sign-off on the rough-in before any board went up.

What happens when you call
- 1
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.
Before
AfterTrusted Brands We Service in Westminster
We maintain sourcing depth across fifty-plus vetted brands, and for Westminster bathroom projects we regularly specify Grohe pressure-balance valves for the region’s hard-water scaling, Kohler cast-iron and acrylic fixtures for durability in high-use households, and KraftMaid vanities with soft-close hardware that holds up to the humidity of a coastal-plain bathroom without climate control. We don’t inflate the written quote with boutique brands when a Grohe or Kohler spec meets the job; the honest number is the whole point of The Haven Standard. Common replacement parts for these lines sit on local shelves, so a finish trim or cartridge swap doesn’t turn into a two-week wait.
Common Bathroom Remodeling Problems We See in Westminster Homes

- Galvanized supply lines scaled shut. Westminster’s moderately hard water leaves decades of mineral buildup in the original galvanized branches. We pressure-test what’s there, document the flow rate with photos, and if the branch needs replacement, the PEX upgrade is in the written scope before demolition starts.
- Asbestos floor mastic under existing vinyl or tile. The 1950s-1970s ranch stock here is loaded with it. We test before we cut, use certified abatement contractors when needed, and won’t set new tile over unabated mastic - that’s an inspection failure and a health hazard, and we don’t build inspection failures into our schedule.
- Undersized electrical panels blocking modern loads. A heated floor, exhaust fan, and GFCI outlets can push a 50-amp bathroom circuit past its breaker. We load-calculate every panel before quoting, and if a subpanel or service upgrade is needed, it’s line-itemed in the first written price - not discovered on day three.
- HOA architectural submittals skipped for visible exterior changes. Newer Westminster master-planned communities and some older neighborhoods with active associations require 30-day architectural review for bath window replacements, vent relocations, or any exterior modification. We pull the CC&Rs, submit before rough-in, and don’t schedule finish until we have written approval. Skipping this step turns a punch list into a compliance fight.
Pricing for Bathroom Remodeling in Westminster, CA
Here’s what bathroom remodeling costs in Westminster’s market, with line-item ranges you can screenshot and compare:
| Service | Price Range in Westminster |
|---|---|
| Bathroom Remodel (full) | $9,000 - $28,000 |
| Small Bathroom Remodel | $5,000 - $12,000 |
| Walk-In Shower Installation | $4,500 - $12,000 |
| Tub-to-Shower Conversion | $3,500 - $10,000 |
| Shower Replacement | $3,000 - $8,500 |
| Bathroom Vanity Installation | $800 - $3,000 |
What moves a Westminster project toward the top of these ranges: asbestos abatement, subpanel or service upgrades, moving a slab drain, flood-zone moisture-barrier compliance, and HOA-mandated exterior matching. What keeps it toward the bottom: keeping the existing layout, working with the current drain location, and selecting from our standard fixture packages. Every quote is flat, written, and delivered before work starts - no “call for pricing,” no allowance categories that balloon later. Call (657) 227-2502 for your free estimate; we’ll review any competitor’s written quote line by line at no charge.
We Also Serve Cities Near Westminster

Our crews work the full coastal Orange County corridor, including Bathroom Remodeling in Westminster and neighboring Huntington Beach, Fountain Valley, Garden Grove, and Anaheim. Each city’s building department has its own permit rhythm and inspector preferences; we maintain separate permit packets and inspection schedules for each jurisdiction so your project doesn’t stall waiting on paperwork.
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. Any plumbing rough-in, electrical circuit modification, or wall movement in Westminster triggers an Orange County Building permit, and 1960s ranches almost always need at least electrical and plumbing work. We pull the permit, schedule inspections in sequence, and won’t close walls until the inspector signs the rough. Call (657) 227-2502 and we’ll walk through what your specific project triggers - estimates are free.
A typical full bathroom remodel in Westminster runs $9,000-$28,000, with most slab-on-grade ranch projects landing at $12,000-$18,000 once plumbing and electrical infrastructure are included. The cast-iron drain, galvanized supply lines, and undersized panel are the hidden drivers in this housing stock - not the tile. We itemize every line in the written quote so you see where the money goes before anyone picks up a tool. Call (657) 227-2502 for an exact number on your project.
Yes, we convert tubs to walk-in showers regularly in Westminster’s ranch tracts. The critical variable is the slab drain location - many 1960s tubs used a 14-inch sidewall rough-in that doesn’t align with modern shower bases. We measure during the estimate, specify the exact base or custom pan that fits, and if the drain needs to move, that change order is written and signed before concrete gets cut. A typical tub-to-shower conversion in Westminster costs $3,500-$10,000. Call (657) 227-2502 to schedule a measurement.
Yes, and we document everything. For Westminster homes still under builder warranty - common in the newer master-planned pockets off Goldenwest Street - we photograph pre-existing conditions, use specified or equivalent materials, and provide written documentation that the work was performed by a licensed contractor. This protects your warranty coverage while upgrading the builder-grade finishes that most owners replace first: the thin vanity, the basic chrome fixture, the hollow-core door. Call (657) 227-2502 and we’ll review your warranty terms before quoting.
If your home is in a Westminster community with a homeowners association, any visible exterior change - new bath window style, vent relocation, exterior exhaust penetration - typically requires 30-day architectural committee review. We pull the CC&Rs, prepare the submittal package with product cutsheets and elevation drawings, and don’t schedule rough-in until we have written approval. Skipping this step has killed more project timelines than any inspection failure. Call (657) 227-2502 and we’ll verify your HOA requirements during the estimate visit.
Written by Grant Rowan, Owner at Rowan Construction Group, serving Westminster and Orange County since 2007.







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