Fast, Reliable Bathroom Remodeling Across Orange
Bathroom remodeling in Orange averages $18,000 to $42,000 for a full gut and rebuild, with tub-to-shower conversions typically running $9,500 to $16,500. Most projects in the 92862, 92863, and 92864 ZIP codes take three to six weeks once we start work, and we handle permitting, demolition, and finish work under one contract.
Call (855) 949-1913 to schedule a free estimate. We’ll walk you through what your specific bathroom needs, what it will cost in Orange’s market, and what surprises to expect once walls come down in homes built between 1920 and 1960.
Why Sunstone ADU Builders Is Orange’s Preferred Bathroom Remodeling Company
One of the biggest advantages we bring to Orange homeowners is a team that’s already spent years working inside this city’s housing stock. We know the 1940s bungalows near Plaza Park, the ranch-style homes off Tustin Avenue, and the mid-century construction near 92864 with their particular wiring, framing, and waterproofing quirks.
Our approach grew out of the same discipline used on our Bathroom Remodeling team across Orange County. We quote fixed, line-item prices. If a hidden condition changes the scope, we document it, price it, and get your written approval before touching that wall. There’s no reopen-and-bill cycle.
We also build the interior scope around the final outcome – whether that’s a rental-ready unit or a primary bath you’ll use every morning. Sunstone specs premium materials like epoxy grout and Laticrete waterproofing membranes, and we finish with tile work that holds up to Orange’s hard water. No shortcuts, no “backer board that might be fine.” It’s done right.
Nate Holloway, our owner, personally reviews every Orange bathroom quote before it goes to you. He’s the one who set the standard: any surprise gets priced and approved in writing, in advance. That’s the whole reason we don’t end up in contractor disputes.
Our Bathroom Remodeling Services in Orange
Full Bathroom Gut and Rebuild
Most of the bathrooms we work on in Orange’s older core – the 1920s bungalows east of Glassell and the post-war homes around Santiago Park – need more than a cosmetic refresh. We strip the room to studs, correct any framing and wiring issues, and rebuild the space with new plumbing fixtures, a properly water-proofed shower or tub area, and code-compliant ventilation. You get a bathroom that’ll last 30 years, not five.

Tub-to-Shower Conversions
For homeowners in the 92863 and 92862 areas looking to age in place or just want a cleaner look, a tub-to-shower conversion is often the highest-value change we make. We remove the old cast-iron or fiberglass tub, rework the drain line, install a new pan, and waterproof the full surround. In Orange’s older homes, this almost always involves correcting some underlying subfloor damage first. We’ll show you exactly what we find before we rebuild.

Waterproofing and Tile Work
This is the part of a bathroom remodel that separates a lasting project from a five-year one. In Orange, with its inland dry summers and erratic rain years, we see older showers failing due to paper-backed gypsum and unsealed grout. We install full waterproof membranes – Laticrete Hydro Ban or Schluter Kerdi – behind all tile, around niches, and at every junction. Tile is set with thin-set, not mastic, and we use epoxy grout to resist the mineral buildup common to Orange’s water supply.

Permit-Ready Remodels in Old Towne Orange
For homes in the historic district around Old Towne Orange, we handle the design review component of your permit. If your bathroom work changes any exterior detail – window size, vent placement, or a new exhaust fan outlet – we draw the plans to match the neighborhood’s historic character. We’ve helped homeowners on North Grand and Palmyra navigate this process without getting stalled at City Hall.

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 Orange
Sunstone is an authorized builder and installer for Dvele, Mighty Buildings, Cover, and Boxabl prefab structures, and we bring that same brand-level discipline to bathroom finishes. When we spec a fixture package for an Orange bathroom, we’re using the same supplier relationships that service our ADU projects – which means better lead times and better pricing. We also specify James Hardie fiber cement siding on any ADU or accessory structure where it applies, because it holds up to inland sun and fire conditions better than fiberboard or wood composite. We stock common finish parts locally, so last-minute changes don’t stall your job.
Common Bathroom Remodeling Problems We See in Orange Homes
- Cloth-wrapped wiring and no GFCI protection. Most pre-1955 homes in Orange still have original cloth-sheathed electrical in the walls. If your bathroom is on the original circuit, opening the wall means we have to bring the branch up to code – GFCI protection, grounded conductors, proper junction boxes.
- Notched and undersized floor joists. Older Orange homes often have joists notched for drain lines or cut down for plumbing runs. We see this in the 1940s bungalows near the Plaza. We repair or sister the joist before any tile goes down.
- Failed waterproofing behind tile. Tile alone is not waterproof. We frequently open shower walls in Orange and find dry rot, paper-backed gypsum, and active leaks that have been soaking the framing for years. That’s a full rebuild, not a face-lift.
- Skipped permits on prior remodels. A bathroom remodeled without a permit may have hidden code violations – undersized venting, non-GFCI outlets, improper drain slope. You inherit the cost to correct it when you sell, and sometimes when you refinance.
Pricing for Bathroom Remodeling in Orange, CA
Here’s what you can expect to pay for bathroom work in Orange’s market right now:
- Tub-to-shower conversion: $9,500 – $16,500 (including waterproofing, tile, plumbing, and permit)
- Full bathroom gut and rebuild (5×8 to 5×10): $18,000 – $42,000 depending on finish level and hidden conditions
- Waterproofing and tile redo for existing shower: $6,000 – $12,000
- Cosmetic update (vanity, toilet, lighting, paint, no plumbing move): $7,500 – $14,000
What moves the number most is what we find behind the walls. Orange homes built between 1920 and 1955 often need rewiring, joist repairs, and drain line replacement once the room is open. That’s not contractor padding – it’s reality. We build allowances into our contracts so you know the ceiling, not just the floor. Call (855) 949-1913 for a free, no-pressure estimate. We’ll walk your specific bathroom and give you a written range.
We Also Serve Cities Near Orange
While our main service area covers Orange and the surrounding 92859, 92862, 92863, and 92864 ZIP codes, we regularly take on bathroom remodels in Villa Park, North Tustin, Tustin, and Anaheim. If you’re in one of those areas and want the same old-home-specific expertise, call us. We know the housing stock, the permits, and the inspectors.
Serving Orange, CA — Our Local Coverage Area
We’re based in the Orange 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 Orange
Not usually – but if your remodel changes anything visible from the street, like moving a window, adding an exhaust vent, or altering an exterior wall, the city’s historic review process may apply. Interior-only work with no exterior changes typically doesn’t trigger design review. The safest approach is to show us the planned scope before you commit; we’ve handled enough Old Towne bathrooms to know what gets flagged. Call (855) 949-1913 and we’ll tell you whether your project is in the review zone for free.
Most common: cloth-wrapped wiring, notched or undersized floor joists, failed shower pans, and water damage behind tile. In homes built before 1955, these aren’t exceptional – they’re the norm. That’s why we inspect first and price any likely repairs before you sign. If we hit something unusual during demo, we stop, document it, and get your written approval before we proceed.
You pull a building permit through the city of Orange, and your job will get rough-in and final inspections. The inspector checks plumbing, electrical, structural changes, and waterproofing before we close up any wall. If your project is in Old Towne, they may also check exterior details against the historic district standards. We handle all scheduling, paperwork, and point-of-contact on every permit. We’re used to the inspectors, their pet peeves, and the timeline.
Because the first quote was written without seeing what’s inside the walls. A contractor who bids low on an older Orange bungalow is betting there’s no rewiring, no rotted joists, no failed waterproofing. When those show up, they bill you after the fact – sometimes aggressively. We avoid that by doing an inspection before we quote, building allowances into your contract, and pricing any surprise before we touch it. You’ll never get a change order you didn’t approve first. Call (855) 949-1913 and we’ll show you a quote structured around real costs, not wishful thinking.
A full membrane system – not just cement board and tile. We use Laticrete Hydro Ban or Schluter Kerdi behind all tile, at every junction, and around niches. In Orange’s older homes, we also replace the shower pan and inspect the subfloor for rot before waterproofing goes in. This is the difference between a shower that lasts 25 years and one that fails in five.
Written by Nate Holloway, Owner at Sunstone ADU Builders, serving Orange and surrounding areas.
Ready to talk about your Orange bathroom? Call (855) 949-1913 for a free estimate. We’ll come out, look at your space, and give you a written, line-item quote that accounts for what’s actually in your walls.