







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Bathroom Remodeling Across Muscoy
Bathroom remodeling in Muscoy, CA typically runs $9,000 – $28,000 for a full renovation, with small bathroom remodels landing between $5,000 and $12,000. Those numbers shift up or down depending on what we find under the slab and around the septic tank, and we’ll explain that plainly before you sign anything. Penhallow Remodeling Riverside serves Muscoy homeowners with written pricing, a defined arrival window, and a 365-day promise to make it right. Call (341) 895-1170 and a real person answers, day or night.
Muscoy is unincorporated county land, which means the permitting and setback questions are different than what a Rancho Cucamonga or Redlands contractor deals with daily. We know that before we quote, not after demo starts.
Why Penhallow Remodeling Riverside Is Muscoy’s Preferred Bathroom Remodeling Company

Muscoy homeowners call us because the number we hand them before work starts is the number on the final invoice. That’s the Kingswell standard, in place since 2004: written price up front, a real arrival window, job site left cleaner than we found it, and a written guarantee on every project. No verbal ballpark that drifts upward once the cabinets are pulled.
Trevor Nash leads our team. Every technician who walks through your door is background-checked and uniformed, so you know exactly who’s on your property. When we schedule a bathroom remodel in Muscoy, we account for the dirt access spurs, the oversized lots, and the county inspection timelines that city contractors rarely factor in. That’s not marketing copy. It’s the difference between a two-week job and a six-week headache.
Our Bathroom Remodeling team has worked on 1950s and 1960s ranch homes throughout Muscoy, and our Bathroom Remodeling in Muscoy experience tells us the first question is rarely about tile. It’s about what’s under the floor.
Styles & brands we work with






Small Bathroom Remodel in Muscoy
Small Bathroom Remodel work in Muscoy usually means a guest bath, hall bath, or compact primary bath in a home built between the 1950s and 1980s, often on a slab foundation with cast-iron drain lines underneath. A small bathroom remodel in Muscoy runs $5,000 – $12,000 depending on whether we’re replacing the shower, moving any plumbing, or dealing with a drain fall issue that forces a re-scope mid-job.
What we typically handle in a small bathroom remodel here: tub-to-shower conversion, vanity replacement, new tile around the tub or shower, a new toilet, updated fixtures, and fresh drywall where years of moisture took a toll. If the existing drain line under the slab has too shallow a fall for a new walk-in shower, we flag that before quoting, not after the tile is ordered.
Replacing Fixtures Without Moving the Footprint
When you stay in the same footprint, the permit path is smoother and the price stays in the lower half of that range. We can swap a tired alcove tub for a shower pan, install a Kohler or Moen fixture set, and replace a laminate vanity with a wider cabinet and Cambria or Caesarstone top. The plumbing stays where it is, so the septic setback question doesn’t get triggered.
Small Bathrooms With Big Drain Problems
If the original cast-iron drain runs too flat, a new walk-in shower can’t flow properly. We open a section of slab, correct the slope, and bring the rough-in to current county code. That adds cost, but it’s the difference between a shower that drains for 30 years and one that backs up by July. We put that number in the written quote before we cut concrete.
Shower Remodel in Muscoy

Shower Remodel projects in Muscoy frequently begin with a homeowner who wants to replace a cramped 32-inch stall or a dated fiberglass surround with something that actually fits the way the household lives. A shower remodel in Muscoy runs $3,000 – $8,500 for a replacement, while a full walk-in shower installation, including framing changes and new glass, lands at $4,500 – $12,000.
We rebuild the wet area with cement board substrate (the moisture-resistant layer behind your tile), install a pre-sloped shower pan or tile base, and finish with either framed or frameless glass. Moen, Kohler, and Delta trims are standard. On a large Muscoy lot, we also check the well pump pressure before you fall for a multi-head shower that your private water system can’t support. That check is free and it’s part of how we scope.
Walk-In Showers for Aging-in-Place
Many Muscoy homeowners plan to stay in the house another 20 years. A low-threshold or zero-entry shower with a built-in bench and grab-bar blocking makes that possible. We frame the blocking behind the tile before the wallboard goes up, so when you need a grab bar at 70, it’s anchored into structure, not drywall anchors.
Tub-to-Shower Conversions on Rural Lots
Converting a tub to a shower means changing the drain from 1.5-inch to 2-inch pipe, which is code. On a 1950s ranch with original plumbing, that pipe run may trace under the slab toward a legacy septic line. We scope it, map it, and quote the conversion correctly the first time. No change order two days into the job.
Trusted Brands We Service in Muscoy
We install materials from recognized trade brands because the guarantee behind our work only matters if the product lasts. For Muscoy bathrooms, we regularly install Kohler and Moen fixtures, Cambria and Caesarstone vanity tops, and Delta or Toto for specialty pieces. We also work with Techo-Bloc and Cambridge Pavers on exterior elements when a bathroom remodel extends to an attached outdoor shower or a garden path that bumps up against the addition. We coordinate material delivery to your Muscoy property around the same schedule as the crew, so lumber and tile don’t sit in the sun for a week before installation.
See the difference
Before
After
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After
Before
AfterCommon Bathroom Remodeling Problems We See in Muscoy Homes
- Shallow drain fall under the slab. Original cast-iron lines in 1950s and 1960s homes often run too flat for modern low-flow showers. We cut the slab, correct the grade, and bring the rough-in to code. This is the number-one reason a Muscoy quote changes after another contractor has already started.
- Undersized private well pressure. A multi-head shower or soaker tub demands more than many legacy well pumps can deliver. We test pressure and storage capacity before quoting, and we’ll tell you if a pressure tank or pump upgrade belongs in the budget. Skipping this check means a beautiful shower that trickles.
- Unpermitted prior work discovered at rough-in. A county inspector opens the wall and finds an addition or plumbing run that was never permitted. We document it, scope the correction, and bring the whole room to current code. It stalls a timeline if it’s a surprise; it’s a line item if we catch it early.
- Legacy septic tank setbacks. In unincorporated Muscoy, many parcels are not on municipal sewer. Any drain line change can trigger a setback review against the existing septic tank and leach field. We walk the parcel, locate the tank, and confirm setbacks before the first permit is filed.
Pricing for Bathroom Remodeling in Muscoy, CA
Here are the line-item ranges we quote in Muscoy right now:
| Service | Price Range |
|---|---|
| Bathroom Remodel | $9,000 – $28,000 |
| Small Bathroom Remodel | $5,000 – $12,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Shower Replacement | $3,000 – $8,500 |
What moves the number inside those ranges: drain line condition, septic and well setbacks, whether we’re moving plumbing or staying in the footprint, the tile and fixture selections, and whether unpermitted prior work needs correction. We don’t give you a range and then surprise you with a change order. We give you a written price after we inspect, and that price is the invoice. Estimates are free at (341) 895-1170.
We Also Serve Cities Near Muscoy
Penhallow Remodeling Riverside handles bathroom remodels in Muscoy and the surrounding Inland Empire communities: Riverside, Anaheim, Ontario, and San Bernardino. If you’re just outside the Muscoy line on either side of Cajon Boulevard or Del Rosa Avenue, we still cover you. Dispatch and scheduling are coordinated from our Inland Empire office in the Riverside – San Bernardino area, and crews serve Muscoy locally.
Serving Muscoy, CA - Our Local Coverage Area
We’re based in the Muscoy 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 About Bathroom Remodeling in Muscoy
No, a fixture-only replacement within the same footprint generally does not trigger a septic setback review because you’re not moving or extending any drain line. The county cares about new drain lines, not a new toilet sitting where the old one sat. If you’re converting a tub to a shower, expanding the room, or moving a toilet or sink, that’s when the setback conversation starts. Call (341) 895-1170 and we’ll tell you which side of that line your project falls on, with a free estimate.
A small bathroom remodel with cast-iron drain correction on a Muscoy rural lot runs $5,000 – $12,000, with the slab correction typically adding $2,000 – $3,500 to the base remodel. The grading fix is the first thing we quote because it determines whether your new shower drains. If we skip the inspection and guess, you pay for a re-scope later. We inspect, we quote the real number, and that number is what you pay.
Yes, because Muscoy is largely unincorporated and not connected to municipal sewer, your tub-to-shower conversion ties into the existing septic system rather than a public line. The conversion requires a 2-inch drain pipe, which we run to the same waste stack your tub used, subject to septic setback confirmation. The job runs $3,500 – $10,000 depending on tile, glass, and whether the old drain needs regrading. Call (341) 895-1170 for a written quote.
Yes, if you are moving plumbing, altering the drain system, or opening walls that expose previously unpermitted work, the county will require a permit and the unpermitted work will likely need to be corrected. In a bathroom, that usually surfaces at rough-in inspection when the inspector sees framing or plumbing that was never signed off. We scope for unpermitted history during the quote, so the correction becomes a line item instead of a stall. No charge for the estimate at (341) 895-1170.
The private well changes the price when your new bathroom demands more water than the existing well pump and pressure tank can deliver. A multi-head walk-in shower or a deep soaker tub can require a pump upgrade, a larger pressure tank, or both, and that’s typically a $1,500 – $4,500 addition depending on your system. Drain line condition and septic setbacks are the other two major drivers. We measure the well pressure during the free estimate and tell you upfront what your system can handle.
If you’re ready to price out a bathroom remodel in Muscoy, call Penhallow Remodeling Riverside at (341) 895-1170. You’ll get a written quote, a defined schedule, and a guaranteed answer from Trevor Nash and our crew. The estimate is free and the price is the price.
Written by Trevor Nash, Owner at Penhallow Remodeling Riverside, serving Muscoy and the Inland Empire.











