Bathroom Remodeling in Highland — Fixed Price, One Bathroom at a Time

Trusted Bathroom Remodeling for Highland Homeowners

Our Bathroom Remodeling in Highland typically runs between $18,000 and $45,000 for a full gut-and-replace, while smaller updates like a shower conversion or vanity swap often land in the $8,000 to $15,000 range. Most Highland homeowners we work with are either fixing a bathroom that’s showing its age or finishing out a new ADU so it can rent for top dollar. Sunburst ADU Builders handles the whole scope – demo, plumbing, tile, fixtures, and finishing – under one contract, so you’re not juggling three different crews and hoping they show up in the right order.

Call (855) 676-6807

We’re led by Noel Carrasco, an ADU-first builder who has spent years navigating San Bernardino County’s permitting process and the specific challenges of remodeling older Highland homes. When you call (855) 676-6807, you’ll talk to someone who can give you a straight answer about scope, cost, and timeline – not a sales script.

What Our Bathroom Remodeling Service Includes

Full Bathroom Gut & Rebuild

This is the most common project we take on in Highland: stripping a bathroom down to the studs and rebuilding it with new waterproofing, plumbing, electrical, tile, and fixtures. You need this when your bathroom has water damage behind the walls, a layout that doesn’t work, or finishes that date the whole house. We handle the demo, manage the dumpster, coordinate inspections with the City of Highland building department, and bring the room back to a finished state that matches the rest of your home.

Shower & Tub Conversions

Highland homeowners frequently ask us to convert a seldom-used bathtub into a walk-in shower, which is both a practical upgrade for aging in place and a rental-value boost for ADU units. The work involves reconfiguring the drain, rebuilding the waterproof pan, and installing new tile or a solid-surface surround. If you’re adding a shower where there was only a tub, we also verify that your existing water heater can keep up with the demand – something that gets overlooked surprisingly often.

ADU Bathroom Build-Outs

If you’re building an ADU in Highland – whether it’s a prefab unit from Cover, Boxabl, or Dvele, or a traditional stick-built structure – the bathroom is where the unit either feels like a real home or a campsite. We handle the full interior fit-out: plumbing rough-in, waterproofing, tile, vanity, toilet, and all fixtures. Because we’re the same team that builds the ADU structure, we don’t have the finger-pointing that happens when a prefab installer hands off an unfinished room to a separate remodeler.

Vanity, Countertop & Fixture Upgrades

Not every bathroom needs to be torn apart. When the bones are solid but the room feels dated, we replace vanities, countertops, faucets, lighting, and mirrors – and we do it in a way that doesn’t disturb the plumbing that’s working fine. This is the fastest way to make a bathroom look current without the cost of moving walls. We also handle accessibility upgrades: comfort-height toilets, grab bars, wider door openings, and zero-threshold shower entries.

Water Damage Repair & Prevention

Highland’s hard water and older housing stock mean we regularly open up bathrooms and find rot, mold, or corroded plumbing hidden behind the tile. We don’t just patch over it – we fix the source of the moisture, replace damaged framing, and rebuild with proper waterproofing so you’re not doing this again in five years. Every remodel we do includes a full inspection of the shower pan, supply lines, and vent fan ducting before we close anything up.

Brands We Service for Bathroom Remodeling

Sunburst ADU Builders works across several prefab and modular platforms, which means we’ve installed bathrooms inside units that most local remodelers have never even walked through. With Boxabl, for instance, we’re familiar with the foldable unit’s compact mechanical chase and the tight clearances that determine where a shower valve can go and how the ventilation routes. We know how to work within those constraints without compromising on finish quality.

We also build out interiors for Dvele and Mighty Buildings units, where the wall assemblies and plumbing rough-ins are different from what you’d find in a conventional framed wall. That matters because a plumber who shows up expecting standard 2×4 framing will be in for a surprise. Whether your Highland property has one of these units already on site, or you’re planning an ADU and want the bathroom done right the first time, our team can handle it. And if you have a conventional stick-built home, we do that too – no prefab knowledge required.

For more on the ADU side of what we do, see our home page, where we lay out the full range of prefab, modular, and custom build options we work with.

Signs You Need Bathroom Remodeling Right Now

• You smell must or mildew that won’t go away. Persistent odor in a bathroom usually means moisture is trapped somewhere it shouldn’t be – behind tile, under the pan, or in the subfloor. By the time you can smell it, the damage is already underway, and ignoring it turns a $2,000 repair into a $15,000 rebuild.
• Grout is cracking or tile is loose around the shower. When grout fails, water gets behind the tile and into the wall cavity. In Highland’s climate, that moisture rarely dries out on its own. Loose tile is a sign the bond has already failed and water has been working its way in for months.
• The floor feels spongy around the toilet or tub. A soft or flexing floor means the subfloor is compromised – rot from a slow leak is the usual culprit. This is a structural problem, not a cosmetic one, and it typically requires pulling up the floor and replacing the damaged sections before they spread.
• Your bathroom is original to a pre-1990s Highland home. Older bathrooms often have galvanized supply lines that are corroded internally, reducing water pressure and eventually failing at the joints. They also frequently lack proper exhaust ventilation, which is why mold keeps coming back no matter how much you clean.
• You’re building or finishing an ADU and the bathroom isn’t done. A rental unit without a functioning bathroom is not a rental unit. If your prefab ADU arrived with the bathroom unfinished, or the plumbing rough-in was done by a different crew, getting the room completed correctly should be the top priority – not an afterthought.

Our Bathroom Remodeling Process – Step by Step

We keep the process straightforward because a remodel is disruptive enough without mystery. Here’s how it works when you hire Sunburst ADU Builders for a bathroom remodel in Highland.

1. 1
   Site visit and scope meeting. Noel Carrasco walks the bathroom with you, tests what’s working, and identifies what needs to change. We measure, check the vent stack, look at the existing plumbing, and talk through your goals – whether that’s a rental-ready ADU bathroom, an aging-in-place update, or a dated room that needs a refresh. This visit is free.
2. 2
   Written, line-item estimate. Within a few days, you get a written estimate that breaks down materials, labor, and any subcontractor work (electrical, plumbing, tile). We don’t do vague allowances that balloon later. If something comes up during demo – and in older Highland homes, something usually does – we discuss it with you before spending a dollar on the change.
3. 3
   Permit pull and schedule lock. Most bathroom remodels in Highland require a permit, especially when plumbing or electrical is being moved. We pull the permit, schedule inspections with the city, and coordinate material delivery so the project doesn’t stall waiting on tile or fixtures. You’ll know the work schedule before demo starts.
4. 4
   Demo, rough-in, and inspection. We protect the rest of your home, demo carefully, and handle the rough plumbing and electrical. Then the city inspector checks the work before we close anything up. This is the step that separates licensed, permitted work from the kind that causes problems when you try to sell the house later.
5. 5
   Finish, walkthrough, and cleanup. Tile, fixtures, paint, trim, and glass go in. We do a final walkthrough with you to catch anything that isn’t right, fix it, and leave the bathroom clean and ready to use. You get a workmanship warranty, and we don’t consider the job done until you’ve had a chance to use the shower and confirm everything works.

How Much Does Bathroom Remodeling Cost in Highland?

A full bathroom remodel in Highland typically costs between $18,000 and $45,000, depending on the size of the room, the quality of the finishes, and whether you’re moving any plumbing. A shower or tub conversion usually lands in the $8,000 to $14,000 range. A vanity and fixture refresh can be done for $4,000 to $9,000. For an ADU bathroom build-out, the number usually falls between $12,000 and $25,000, since we’re starting from rough-in rather than replacing an existing room.

Here’s a breakdown of what drives those numbers:

• Tile and finishes: Basic ceramic tile runs $3 to $6 per square foot installed; large-format porcelain or natural stone runs $15 to $35 per square foot. The shower is usually the single biggest tile line item.
• Fixtures: A builder-grade toilet, faucet, and showerhead might total $400. Moving into solid brass, thermostatic valves, and freestanding tubs pushes that line to $3,000 or more.
• Plumbing changes: Moving a drain or supply line adds $500 to $2,000 depending on access. In slab-on-grade Highland homes, moving a toilet or shower drain means breaking concrete, which is more invasive and more expensive.
• Permits and inspections: City of Highland permit fees for a bathroom remodel are generally a few hundred dollars. It’s a small line item compared to the cost of unpermitted work being flagged when you sell or refinance.

The biggest way to avoid overpaying is to get a line-item quote and ask what’s included. Some contractors quote low, then hit you with change orders for unexpected “discoveries” they should have anticipated during the walkthrough. We quote what we see, flag the likely unknowns up front, and stick to the number unless you make changes. Our estimates are free – call (855) 676-6807 and we’ll walk the room with you.

If you’re also considering a kitchen update, we do that work too – see our Bathroom Remodeling in San Bernardino page for how we approach similar projects across the county line.

Bathroom Remodeling Near Highland – Our Service Area

We’re based near Highland and work throughout San Bernardino County, including Redlands, Loma Linda, Mentone, Grand Terrace, Colton, and Rialto. For homes in the mountain communities around Running Springs, Crestline, and Lake Arrowhead, we schedule project work in consolidated blocks to keep travel costs reasonable. Most of our Highland bathroom remodels begin within two to four weeks of signing, depending on permit turnaround at the city. If you’re in Redlands, our Bathroom Remodeling in Redlands page covers that side of the valley in more detail.

Frequently Asked Questions – Bathroom Remodeling in Highland

Schedule Your Bathroom Remodeling Service in Highland Today

Whether you’re finishing an ADU bathroom for rental income or bringing your primary bathroom into this decade, we’ll give you a straight answer on cost, scope, and timeline. Call Noel Carrasco and the Sunburst ADU Builders team at (855) 676-6807 to schedule a free, no-obligation estimate. We’ll walk the room with you, talk through options, and leave you with a written quote you can actually use – even if you don’t hire us.

Written by Noel Carrasco, Owner at Sunburst ADU Builders, serving Highland and San Bernardino County.