Fast, Reliable Bathroom Remodeling Across Calimesa
Bathroom remodeling in Calimesa typically runs $14,000 – $28,000 for a full gut and rebuild of a standard 5×8 hall bath, and most projects take three to five weeks once the permit is pulled. That’s the honest number we give homeowners before we open a single wall. Sunburst ADU Builders runs bathroom remodels across Calimesa from our base in Highland, and we know the 92320 housing stock well enough to tell you what’s behind the tile before demo starts. Call (855) 676-6807 to schedule a free estimate.

We spend a lot of time on the I-10 corridor between our Highland shop and Calimesa job sites. The homes out here, especially the 1970s and 1980s builds off County Line Road and Singleton Road, share a few predictable problems: aluminum or cloth wiring, drywall behind shower tile, undersized joists, and pans that were installed wrong from day one. Knowing that before we quote means your number doesn’t balloon mid-project. We do Bathroom Remodeling work that anticipates what Calimesa homes actually contain.
Why Sunburst ADU Builders Is Calimesa’s Preferred Bathroom Remodeling Company
Sunburst ADU Builders is not a general contractor that added bathrooms to the menu. We’re an ADU-first builder, and bathroom remodeling is part of how we finish the units and the primary homes around them. That focus shows in how we handle Calimesa projects. We walk the lot, check the septic if you’re on one, look at the electrical panel, and only then write the quote.
Noel Carrasco leads our Calimesa bathroom remodeling work. He’s the one who reads the Riverside County code amendments, walks the WUI maps, and tells you honestly whether your fire-hazard zone triggers extra ignition-resistant siding or a tempered-glass window the original quote didn’t include. That’s inconvenient to hear early, but it beats a change order at week four. Our customers in Calimesa tend to mention the upfront pricing and the fact that our crew doesn’t leave a job site looking like a bomb went off.
We’re licensed, insured, and bonded. We pull permits on every bathroom remodel in Calimesa that requires one, and we schedule the inspections ourselves. If a surprise shows up behind the wall, we photograph it, price it, and get your written approval before touching it. That discipline matters out here because Calimesa’s older homes hide enough problems already.
Our Bathroom Remodeling Services in Calimesa
Full Bathroom Gut Remodels
A full gut on a Calimesa bath means we strip to studs, fix what’s wrong underneath, and rebuild with cement board, waterproof membrane, and properly sloped pans. Homes off Sandalwood Drive and around the Calimesa Country Club area frequently need subfloor repair once the old vinyl comes up. We quote it honestly so the number you hear at contract sign is close to the final invoice.

Garage Conversion Bathrooms
Calimesa has more detached garages and workshops per block than almost any city we serve in the Inland Empire. When we add a bathroom to a garage conversion ADU, the plumbing tie-in matters more than the tile selection. We check sewer vs. septic, confirm the grade can carry a drain line, and build the wet wall to code. A Bathroom Remodeling in Calimesa project attached to an ADU conversion is our core competency, not an afterthought.

Shower and Tub Replacement
Replacing a shower or tub in a Calimesa home usually means correcting what the original builder got wrong. Drywall behind tile is the big one. We demo, rebuild with fiber-cement backer board, install a waterproofing membrane with corner seals, and only then set tile. In homes with septic, we’ll also verify the drain capacity before we put in a second showerhead or a soaker tub that overflows the leach field.

Aging-in-Place and Mobility Bathrooms
We handle curbless showers, blocking for grab bars, wider door openings, and zero-threshold entries for Calimesa homeowners planning to stay in their homes as they age. The semi-rural lots in 92320 often mean single-story ranch layouts where a master bath conversion is simpler than in a two-story Redlands Victorian. We walk the space and show you exactly where the accessibility changes go before demo starts.

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.
Trusted Brands We Service in Calimesa
We work across the major prefab and modular platforms including Cover, Dvele, and Boxabl, and the interior fit-out of those units is where our bathroom remodeling team comes in. When an ADU arrives as a shell or panelized unit, we finish the bathroom inside with the same material standards we use on traditional builds, including cement board substrates, moisture-rated drywall, and James Hardie fiber-cement finishes where the exterior envelope calls for it. We stock the common substrates, seals, and backer board for Calimesa jobs in our Highland yard, so a material run doesn’t idle your crew for a day.

Common Bathroom Remodeling Problems We See in Calimesa Homes
- Cloth and aluminum wiring. Homes built in Calimesa through the 1970s often have cloth-insulated Romex or aluminum branch circuits. Once a wall opens for a remodel, code requires addressing it, and that turns a simple fixture swap into a re-wire. We price the electrical contingency before we cut drywall.
- Drywall set behind tile with no waterproofing. We demo showers in Calimesa regularly where the original tile was set directly onto green board. The moisture sits in the wall cavity for years, and by the time the tile loosens, the framing is soft. We replace the framing and install a proper pan and membrane.
- Failed shower pan liners. A dry-set PVC liner with no pre-slope is the classic Calimesa failure, and it only shows itself as water stains on the ceiling below or at the baseboard. Opening the shower and seeing the black mold is the worst part of the job. Fixing it correctly is the part we control.
- Septic system constraints on added fixtures. In the rural stretches of 92320 served by septic and well, adding a second bathroom or a larger tub can exceed the system’s designed capacity. We coordinate the capacity check before we commit to a layout that your lot can’t support.
Pricing for Bathroom Remodeling in Calimesa, CA
A straightforward shower replacement in Calimesa runs $6,000 – $11,000 depending on tile choices and whether the pan framing is salvageable. A full hall bath gut with new tub, tile surround, vanity, and fixtures runs $14,000 – $22,000. A master bath addition or garage conversion bathroom runs $20,000 – $35,000 when plumbing and electrical tie-ins are included. Those numbers assume standard finishes; custom stone, imported tile, and accessibility features move the range upward. We write allowances into every contract for the hidden wiring and framing issues we know are likely in Calimesa’s older stock. Call (855) 676-6807 for an exact quote. Estimates are free, and we’ll hand you a line-item scope.
We Also Serve Cities Near Calimesa
We run bathroom remodeling crews up and down the I-10 corridor. Beyond Calimesa, we serve Yucaipa, Mentone, Redlands, and Banning. If you’re on the east side near the Banning bench or west toward Yucaipa’s newer tracts, the same crew and the same upfront pricing apply. No franchised subcontracted crews, just our people.
Serving Calimesa, CA — Our Local Coverage Area
We’re based in the Calimesa 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 Calimesa
A Calimesa bathroom quote goes up once walls open because homes built between the 1960s and 1980s in this area commonly have cloth-insulated wiring, drywall behind tile, and rot in framing from failed pan liners, and code requires those to be corrected during a remodel. We handle this by writing inspection allowances into the original contract and photographing every deficiency before we price the change. You approve the revised written scope before we cut anything further. Call (855) 676-6807 and we’ll walk through the typical findings on your specific home.
Yes, a Calimesa bathroom remodel can trigger a septic capacity check if your 92320 property is on a private septic system and you’re adding a fixture or increasing tank load. The county reviews capacity when a permit pulls, and we coordinate that early in the design phase so a failed perc or undersized tank doesn’t kill the layout mid-project. We’ll tell you in the first walkthrough whether this applies to your lot.
Yes, a garage conversion bathroom in Calimesa can match the primary home’s finishes, and we spec the same tile, vanity, and fixtures once the plumbing and electrical tie-ins are confirmed. The constraint is distance to the sewer or septic line and whether the grade requires a pump. We resolve that before design work finishes, so your finishes are a choice, not a compromise.
If your Calimesa home sits in a WUI fire-hazard zone, a bathroom remodel that opens exterior walls can trigger ignition-resistant siding requirements and tempered-glass windows on the affected elevation. We check Riverside County’s fire maps on every quote, and we tell you upfront if your remodel comes with defensible-space or hardening upgrades. No surprise inspection findings later.
Sunburst ADU Builders pulls all Calimesa bathroom remodeling permits and schedules every inspection, so the homeowner never files paperwork or chases an inspector. Riverside County and Calimesa’s building division both require permit on any remodel that opens walls, moves plumbing, or changes the electrical. We handle the whole sequence from application to final sign-off, and we’ll give you a permit-ready scope with your estimate. Call (855) 676-6807 to start the paperwork on your project.
A Calimesa Bathroom Remodel That Started Behind the Tile
On a Calimesa job off the I-10 corridor, our crew opened up a 1970s bathroom in a home with a detached shop and found cloth-insulated wiring spliced into a junction box, undersized framing behind the shower wall, and a pan that had been dry-set with drywall rather than cement board. Every wall cavity held old moisture damage. We paused work, priced the framing and re-wire, and once the contract was updated in writing, the permit-driven upgrades and a fresh waterproofing system went in. That’s the job out here. The question is never whether a 1970s Calimesa bath hides problems. It’s whether your contractor handles them without blowing your budget.
Key Takeaways
- Realistic pricing: full Calimesa bath remodels run $14,000 – $28,000; shower replacements run $6,000 – $11,000.
- Hidden conditions are common: cloth wiring, drywall behind tile, and failed pans are the norm in 1970s-1980s Calimesa homes.
- Septic and WUI rules matter: rural 92320 lots face capacity and fire-zone upgrades that city lots don’t.
- We pull every permit: Sunburst handles the paperwork, inspections, and written change orders.
Get Your Free Calimesa Bathroom Remodel Estimate
If you’re planning a bathroom remodel in Calimesa, don’t guess what’s behind the walls. We’ll walk the space, check the panel, look at the septic if you have one, and hand you a written estimate with the contingencies already priced. Call Noel Carrasco and the Sunburst ADU Builders team at (855) 676-6807 to schedule your free estimate. We serve the entire 92320 zip code and the surrounding cities along the I-10 corridor.
Written by Noel Carrasco, Owner at Sunburst ADU Builders, serving Calimesa since the company’s founding in Highland, CA.