Bathroom Remodeling in Riverside, CA | Cottage ADU Builders

Bathroom Remodeling in Riverside — 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 Riverside

A full bathroom remodel in Riverside typically runs $18,000 to $38,000 for a standard 5×8 hall bath, while larger master baths with custom tile work land between $35,000 and $65,000. Most projects we take on in Riverside wrap up in 3 to 6 weeks once demolition starts. If you’re researching costs and timelines right now, call (866) 808-7312 and we’ll give you a straight answer based on your home’s age and what’s behind your walls.

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We’re Cottage ADU Builders, and we’ve worked inside enough Riverside tract homes to know that the tile you pick is rarely the expensive part. It’s what the walls reveal once we open them. That’s the conversation we want to have with you before demolition, not after the invoice shows up.

Why Cottage ADU Builders Is Riverside’s Preferred Bathroom Remodeling Company

We work almost exclusively in Riverside’s older neighborhoods, from the 1950s ranches along Magnolia Avenue and Brockton Avenue to the mid-century tracts near Arlington Park and the foothill streets below Box Springs Mountain. That familiarity means we walk into your bathroom already knowing what to expect: original galvanized supply lines, lead pan showers, and panels that were sized for a house with two circuits, not a modern bathroom with GFCI outlets, a vent fan, and heated floors.

Our team is led by Neil Stratton, who has spent years working through the specific plumbing and electrical issues that Riverside’s 1950s through 1980s housing stock throws at a remodel. His approach is inspection-first. Before we give you a hard number, we look at what’s actually behind the tile and under the floor, so the contract we write reflects the house you own, not an idealized version of it. Homeowners across Riverside 92506, 92504, and 92501 have told us that’s the reason they chose us over a bid that came in lower but fell apart at demolition.

We also handle Bathroom Remodeling as a core trade, not a side project. Our crew does bathroom remodels, kitchen remodels, and ADUs, which means the plumbing and electrical knowledge crosses over. When we trace a supply line issue in your bath, we’re not guessing. We see those same galvanized pipes in every Riverside ranch we open.

Our Bathroom Remodeling Services in Riverside

Full Bathroom Remodels with Inspection-First Allowances

The way we approach a full bath remodel in Riverside is to inspect first, then quote. That means before you sign anything, we’ve already opened or scoped enough of the wall cavities and subfloor to know what the job actually involves. If the original 1954 drain lines are rotted, you’ll have a written allowance for a repipe in your contract before we start, not a change order after we’ve already torn out your shower. Call (866) 808-7312 to schedule an inspection and get a real number.

Full Bathroom Remodels with Inspection-First Allowances

Waterproofing and Tile Installation

Riverside’s hot, dry summers and the occasional Santa Ana dust storm don’t cause shower leaks directly, but the original waterproofing methods in 1950s and 1960s homes do. We regularly pull out lead pans that have been leaking for years, hidden behind walls and under floors. Our rebuilds use modern waterproofing membranes and properly sloped bases, plus we inspect the framing beneath before we lay a single tile. If you’re in 92501 or 92506 and your shower has been there since the house was built, it’s worth having us look at it before the grout lines tell you something’s wrong.

Waterproofing and Tile Installation

Electrical and Plumbing Upgrades for Code Compliance

Riverside’s older tract homes were wired for a different era. When we add a dedicated 20-amp circuit for GFCI outlets, a properly vented exhaust fan, and lighting to a bathroom, the 100-amp panel from 1958 might not have room. We handle the panel assessment and upgrade as part of the remodel, and we’ll tell you early if yours needs it. The same goes for plumbing: galvanized supply lines that pass inspection when untouched can fail once water pressure changes after a new valve installs. We price these upgrades into the allowance line, not as a surprise at punch-list.

Electrical and Plumbing Upgrades for Code Compliance
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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 Riverside

If you’ve been researching bathroom fixtures or materials, you’ve probably run across James Hardie, and you may have seen our ADU work with Plant Prefab or Boxabl. We bring that same brand fluency to bathrooms. James Hardie isn’t a bathroom product, but the standard it represents, durability and a real warranty, is what we carry into every material choice we spec for your Riverside bath. We work with suppliers across the Inland Empire, so sourcing tile, shower pans, and hardware locally in Riverside doesn’t add lead time to your remodel.

Common Bathroom Remodeling Problems We See in Riverside Homes

  • Galvanized supply lines behind original tile: In 1950s Riverside ranches, especially around 92506 and 92501, the original galvanized pipes corrode from the inside. They can pass a visual inspection and fail a pressure test once we open the wall and disturb the joints. We allow for a copper repipe or PEX replacement in the contract, with the cost approval in writing before we cut.
  • Undersized 100-amp or fused panels: Many Riverside tract homes were built with panels sized for lights, a few outlets, and a window A/C unit. Adding a modern bathroom circuit, an exhaust fan, and GFCI outlets can trip the panel and fails code. We assess your panel during the inspection and include the upgrade in the initial quote if it’s needed.
  • Rotted subfloor under failed lead pans: The original shower pans in 1950s and 1960s Riverside homes were made of lead, and they fail over time. By the time the leak shows up in the kitchen ceiling below, the subfloor is frequently rotted. We’ve replaced more subfloors in Riverside 92504 and 92506 than we can count, and we always check the framing while we’re in there.
  • Missing or improper venting: Riverside’s semi-arid climate means surface mold is less common than in coastal cities, but stagnant moisture in a poorly vented bathroom still causes plaster damage and wood rot. Older ranch homes often have either no exhaust vent or a vent that dumps into the attic, which is a code violation. We correct the venting as part of every full remodel.

Pricing for Bathroom Remodeling in Riverside, CA

A standard hall bath remodel in Riverside, with new tile, a cast-iron tub or shower pan, a new vanity, and updated plumbing fixtures, typically runs $18,000 to $30,000. A larger master bath with a walk-in shower, custom tile, and possibly moving the toilet or sink lands between $35,000 and $65,000. What moves the number isn’t the tile selection, it’s what we find when the walls are open. A galvanized repipe adds $3,000 to $6,000. A panel upgrade runs $2,500 to $5,000 depending on the panel and the distance from the meter. We write these as allowances in your contract, with a line-item price for each, so you approve the actual number in writing before we spend a dollar of it. Call (866) 808-7312 for a free estimate, and we’ll walk your bathroom with you before we talk numbers.

We Also Serve Cities Near Riverside

Our Bathroom Remodeling in Riverside service area extends to the surrounding communities, including Rubidoux, Glen Avon, Pedley, and Sunnyslope. If you’re in one of those neighborhoods and your house is a 1960s ranch with the same galvanized pipes and undersized panel we see across Riverside, give us a call. We schedule inspections across the area every week.

Serving Riverside, CA — Our Local Coverage Area

We’re based in the Riverside 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 Riverside

Call Cottage ADU Builders for Your Riverside Bathroom Remodel

If your Riverside home is a 1950s ranch in 92506 or a 1980s tract house in 92504, the bathroom remodel you’re planning has a real cost and a real timeline, and we’ll tell you both before we start. We’re led by Neil Stratton and based nearby in Murrieta, and we’re in Riverside neighborhoods every week. Call (866) 808-7312 to schedule your free estimate. We’ll walk the bathroom, open what needs opening, and give you a contract with written allowances for what’s behind the walls. No surprises after demo, just a bathroom built for the next 50 years.

Written by Neil Stratton, Owner at Cottage ADU Builders, serving Riverside and the Inland Empire.

Why Riverside Chooses Cottage ADU Builders

We set the standard for bathroom remodeling in Riverside.

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 Riverside

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 Riverside — 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 Riverside Customers Say

Trusted by homeowners across Riverside and surrounding areas.

★★★★★

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

Lucia Flores · Verified customer
★★★★★

"Detached unit in the back yard. Utilities trenched, separate meter, and it passed final on the first inspection."

Ernesto Hernandez · Verified customer
★★★★★

"Unit came out great and the tenant is happy. The timeline ran long, largely because of how slow the city was on plan check, though a couple of the delays were scheduling on their end."

Shane Miller · Verified customer

Ready for Bathroom Remodeling in Riverside?

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(866) 808-7312

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