Bathroom Remodeling in San Bernardino, CA | Costa Mesa ADU Builders

Bathroom Remodeling in San Bernardino — Fixed Price, One Bathroom at a Time

Free in-home consult and a written, line-item quote before demo starts. We work one bathroom at a time so your house stays livable, and the signed price is the final price. Licensed, insured, permits handled.

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Fast, Reliable Bathroom Remodeling Across San Bernardino

Bathroom remodeling in San Bernardino typically runs $14,000 to $38,000 for a full gut-and-replace, while a builder-grade tub-to-shower conversion lands between $6,500 and $11,000. Most projects take 3 to 6 weeks from demo to final walkthrough, depending on whether we’re working in a newer tract home under builder warranty or an older 1940s-era house that needs new plumbing and wiring. Our crew covers every San Bernardino zip code from 92418 up through 92427, including the neighborhoods along Waterman Avenue, the Verdemont foothills, and the newer subdivisions east of the 215. Call (833) 589-8273 and we’ll give you a written line-item estimate before any work begins.

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Why Costa Mesa ADU Builders Is San Bernardino’s Preferred Bathroom Remodeling Company

We’ve remodeled bathrooms in San Bernardino’s older working-class neighborhoods near downtown, where galvanized pipes from the 1950s are reaching end of life, and in the master-planned tracts near Cal State San Bernardino, where builder warranties still have another five or eight years on them. That split is exactly why homeowners here call us: we’re the same Bathroom Remodeling team that handles full ADU builds and kitchen remodels, so our crews walk onto a San Bernardino job already knowing how to manage structural conditions, HOA rules, and warranty paperwork in one pass.

Nate Calloway runs every San Bernardino project with a simple rule: document everything, change nothing without written approval, and leave the owner with a file they can hand to a builder warranty department or a future buyer. If you’re in the Shandin Hills or North Park neighborhoods, our estimator can usually be on-site within 48 hours for measurements and a written quote. San Bernardino homeowners consistently tell us the same thing: the line-item estimate made the decision easy because they could see exactly what each change costs.

We pull permits for every job that needs them, and we know which San Bernardino building department requirements apply when you’re swapping a tub for a shower or moving a vent terminal. If your home sits in a neighborhood with an active HOA architectural review board, we handle that submission for you. You don’t have to figure out which form goes where.

Our Bathroom Remodeling Services in San Bernardino

Builder-Grade Tub-to-Shower Conversion

Most newer homes in San Bernardino’s east-side tracts and along the north end of Kendall Drive come with a standard chrome tub/shower combo that looks fine on closing day and feels tired by year three. We replace the tub with a tiled shower pan, install a custom valve with a pressure-balanced cartridge, and rebuild the wet wall without cutting any penetration the builder’s warranty department can flag. Expect $6,500 to $11,000 for a standard 60-inch conversion, more if you want a bench or a full-height tile surround.

Builder-Grade Tub-to-Shower Conversion

Vanity and Fixture Upgrades Within Warranty

If your San Bernardino home is less than ten years old and the bathroom still has the original low-profile vanity and chrome builder fixtures, you can upgrade both without touching the warranty so long as the plumbing rough-in doesn’t move. We swap vanities in a day, replace the drain and supply lines with code-compliant flexible connectors, and keep the original shutoff valves accessible. A 48-inch vanity replacement with quartz top, new faucet, and a framed mirror typically lands between $2,800 and $5,400 in San Bernardino.

Vanity and Fixture Upgrades Within Warranty

HOA-Compliant Ventilation and Window Changes

San Bernardino summers regularly push past 100°F, and a builder-grade 50-CFM exhaust fan can’t keep a showering bathroom dry, let alone cool. We upgrade to a 110-CFM or 150-CFM unit and route the vent through the roof or soffit only after the HOA architectural review board has signed off on the exterior terminal location. Swapping a standard aluminum window for a vinyl low-E unit runs $900 to $2,100 per opening here, but the approval timeline is usually two to four weeks depending on your HOA’s meeting schedule.

HOA-Compliant Ventilation and Window Changes

Full Bathroom Renovation for Older San Bernardino Homes

The pre-1970s homes west of the 215 and south of Baseline often need more than new tile. We regularly find galvanized supply lines that have rusted down to pencil-width flow, cast-iron drain stacks that crack when we open the wall, and electrical panels with no spare breaker capacity for a modern bathroom circuit. A complete hall-bath renovation on a 1950s-era San Bernardino home, including re-plumb, re-wire, insulation, and all finishes, starts around $19,000 and can reach $34,000 when we’re relocating fixtures or adding a second sink. We quote the full number upfront so you’re not surprised when the wall comes open.

Full Bathroom Renovation for Older San Bernardino Homes
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What happens when you call

  1. 1
    A real person answersNo phone trees — you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    A background-checked tech heads outLicensed & insured, dispatched right away.
  4. 4
    You approve before work beginsNothing starts until you say go.

Trusted Brands We Service in San Bernardino

We work with fixtures and materials that hold up to San Bernardino’s heat, hard water, and the occasional Santa Ana wind season. For shower surrounds and exterior-facing bathroom walls, we spec James Hardie fiber-cement backer and, where needed, Hardie siding for any exterior penetration work. For vanity and fixture packages, we source from brands that actually stock parts in Southern California warehouses, which matters when a valve cartridge fails during the first Santa Ana heat spike and you need a replacement this week, not in three weeks. We also bring the same brand-agnostic sourcing discipline we use on our Bathroom Remodeling in San Bernardino ADU work: we’ll give you product options from manufacturers like Boxabl and Plant Prefab for a prefab bathroom pod or modular wet-wall kit if that fits your timeline and budget better than a traditional stick-built remodel.

Common Bathroom Remodeling Problems We See in San Bernardino Homes

  • Builder warranty conflicts on wet-wall changes. Homeowners cut into a wall to move a shower valve or drain, then discover the builder’s warranty department voids the plumbing coverage because the work wasn’t documented or approved first. We photograph every stage and keep the original rough-in layout intact when possible.
  • HOA stop-work notices on exterior-visible changes. In San Bernardino’s newer subdivisions east of the 215, a swapped window or relocated exhaust vent terminal triggers an architectural review. We file the paperwork before we touch the exterior, so the job doesn’t stall mid-project.
  • Undersized exhaust fans in hot-climate bathrooms. The standard 50-CFM builder fan can’t keep a 40-square-foot bathroom dry during a San Bernardino summer, which leads to mildew on the ceiling and peeling paint. We upgrade to 110-CFM minimum and verify the duct run actually terminates outside, not into the attic.
  • Galvanized supply lines in pre-1970s homes. The older stock around downtown San Bernardino and the west side frequently has galvanized pipe that’s rusted internally down to a quarter-inch opening. We test flow before we close up any wall, because replacing a shower valve on a dead supply line is wasted money.

Pricing for Bathroom Remodeling in San Bernardino, CA

Here’s what we’re seeing across San Bernardino right now, from Verdemont down through the University District and out to the older west-side neighborhoods:

  • Tub-to-shower conversion (standard 60-inch): $6,500 – $11,000
  • Vanity and fixture upgrade (48 – 60 inch, quartz top, new faucet): $2,800 – $5,400
  • Exhaust fan replacement and roof vent reroute: $750 – $1,900
  • Full hall-bath remodel (newer tract home, no plumbing relocation): $14,000 – $22,000
  • Full hall-bath remodel (pre-1970s home, with re-plumb and re-wire): $19,000 – $34,000
  • Window replacement with HOA architectural review: $900 – $2,100 per opening

Materials drive about 35 to 45 percent of the total, with tile and the shower valve being the biggest swing items. Labor runs higher on older San Bernardino homes because walls hide galvanized pipe, unpermitted additions, or failing cast-iron drain lines. Every quote we give is a written line item, and the number does not change once work starts unless you add scope. Call (833) 589-8273 for your free estimate, and we’ll walk the job with you and hand you the numbers the same day.

Key takeaways: San Bernardino pricing splits by housing age. Budget $6,500 to $11,000 for a tub-to-shower swap in a newer tract home, and $19,000 to $34,000 for a full older-home remodel with plumbing and electrical replacement. HOA architectural review adds two to four weeks on exterior-visible changes. The builder warranty survives if the wet wall’s original penetrations don’t move.

We Also Serve Cities Near San Bernardino

Our bathroom remodeling coverage extends to Muscoy, Highland, Loma Linda, and Rialto. If you’re in one of those cities, the same San Bernardino pricing structure and warranty-aware process applies, and our estimator schedules the same week. Call (833) 589-8273 and tell us which city you’re in; we’ll confirm the coverage and set the site visit.

Serving San Bernardino, CA — Our Local Coverage Area

We’re based in the San Bernardino 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 San Bernardino

Why San Bernardino Chooses Costa Mesa ADU Builders

We set the standard for bathroom remodeling in San Bernardino.

No Change-Order Surprises

The written quote you sign is the price you pay. Anything we find mid-job gets priced and approved by you in writing before we touch it.

Licensed & Insured

Fully certified technicians who meet all local and state licensing requirements.

Upfront Pricing

No hidden fees, no surprises. You approve the price before any work begins.

Guaranteed Work

Every repair and installation is backed by our workmanship warranty and satisfaction guarantee.

How It Works in San Bernardino

Getting your bathroom remodeling handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your bathroom remodeling needs and we provide an upfront, transparent quote — no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in San Bernardino — typically within 30–60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

What happens when you call

  1. 1
    A real person answersNo phone trees — talk to a local bathroom remodeling pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you — the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What San Bernardino Customers Say

Trusted by homeowners across San Bernardino and surrounding areas.

★★★★★

"The kitchenette layout he suggested made better use of the space than the one on our original sketch."

Ryan Padgett · Verified customer
★★★★★

"He gave us a realistic rental number for the finished unit rather than the optimistic one, and it's renting for about what he said."

Andres Rodriguez · Verified customer
★★★★★

"Sound insulation between the unit and the main house is better than I expected. You genuinely cannot hear the tenant."

Imani Ellison · Verified customer

Ready for Bathroom Remodeling in San Bernardino?

Call now for a free estimate — or request one below. Licensed, insured, and here with fast after-hours help in San Bernardino.

(833) 589-8273

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