







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Bathroom Remodeling Across Downey
A full bathroom remodel in Downey typically runs between $9,000 and $28,000, with smaller baths falling closer to $5,000 – $12,000. The price depends on what’s behind your walls once we open them up, which is exactly why we put everything in writing before the first tool comes off the truck. If you’re planning a remodel off Firestone Boulevard or anywhere in the 90241 or 90242 zip codes, call Mason Remodeling at (803) 680-2547 for a free estimate with a written price, not a verbal guess.
We know Downey’s housing stock well. The mid-century ranches near Furman Park and the busier corridors along Paramount Boulevard come with specific plumbing and framing realities that change how a remodel should be scoped. Our crews live with those realities every week, and we’ve learned to price for them honestly from the start.
Why Mason Remodeling Is Downey’s Preferred Bathroom Remodeling Company

Downey homeowners don’t hire a remodeler on a handshake. They want to know who’s coming through the door, what it will cost, and what happens if something isn’t right. That’s the job we’ve been doing since 2004, as part of the Threshold Group family of home-service companies.
Every Mason Remodeling crew member is background-checked and identity-verified under The Threshold Standard. Before our technician arrives at your Downey home, you’ll receive their name and photo. When they knock, they’ll be in a clean marked uniform and show a photo ID badge at the door. No surprises about who’s in your bathroom.
We also put the price in writing before any work begins. Always. That’s not a promotion and it’s never waived. If the scope changes because of what we find behind the tile, you’ll know the new number before we proceed, not after the invoice lands. Our work is covered by the 365-Day Done Right Promise: if something isn’t right within a year of completion, we make it right at no cost to you.
Key Takeaways
- Downey bathroom remodels run $9,000 – $28,000, with small baths at $5,000 – $12,000.
- Written price before work starts, on every project, every time.
- Background-checked, uniformed crew with photo ID badge at the door, and you get their name and photo before arrival.
- 365-Day Done Right Promise covers workmanship for a full year from completion date.
- Free estimates: call (803) 680-2547.
Styles & brands we work with







Walk In Shower in Downey
A walk-in shower install or conversion is one of the most requested bathroom upgrades in Downey, especially in the 1940s and 1950s houses off Downey Avenue where the original tub has been scrubbed for seventy years and the homeowner wants a curbless, easy-entry footprint. The work usually means removing the existing tub, re-routing the drain to a 2-inch line for proper flow, waterproofing the surround, and setting a shower pan, glass enclosure, and new valve trim. In Downey, a walk-in shower installation runs $4,500 – $12,000, and a tub-to-shower conversion runs $3,500 – $10,000. The price difference comes down to what we find when the tub comes out: galvanized supply lines, cast-iron drains, or water-damaged subfloor all affect the final number, and those discoveries are exactly why Downey homeowners should never trust a bid that hasn’t opened a wall yet.
What The Threshold Standard Means In Your Shower
Our Bathroom Remodeling team sends you the name and photo of every crew member before they get to your door. When they arrive at your home in Downey, they’ll show a photo ID badge alongside their marked uniform. You’ll know who is in your bathroom, by name, from the first knock to the final caulk line.
Why Fiberglass Liners Don’t Hold Up Here
Downey’s hard municipal water is rough on cheap shower surrounds and plastic pans. We install specification-grade materials instead: tile substrates with real waterproofing membranes, solid-surface pans that won’t flex or crack, and fixtures from Kohler, Moen, or Toto. If you want a frameless glass enclosure, our installers set it with the right reinforcement behind the wall so the hinges don’t pull out of drywall anchors a year later.
Bathroom Remodeling Companies in Downey

Bathroom Remodeling Companies in Downey range from one-man handyman operations to full-service general contractors, and the difference shows up in permits, paperwork, and what happens when a drain leaks six months after the final check clears. Mason Remodeling operates as a general contractor with a written scope, a written price, and a written guarantee on every project we take. We serve all of Downey, from the neighborhoods around Stonewood Center to the residential blocks east of Lakewood Boulevard.
Scoped In Writing, Not On A Handshake
What changes the price on a Downey bath remodel is almost always what’s inside the walls: cast-iron drain lines, galvanized supply pipes, or framing that’s been wet since the Eisenhower administration. A handshake bid hides those costs. Our written price comes after we scope what’s visible, and we flag probable unknowns before demo starts so you’re making decisions with your eyes open.
Permits And Inspections, Every Time
We pull permits for plumbing, electrical, and any structural changes on Downey bathroom remodels. It’s slower than skipping the counter, but it means your shower valve and wiring pass inspection sign-off, and there’s no surprise at resale when an unpermitted bathroom flags the whole escrow. If a local building inspector requires a correction, we handle it and don’t bill you for our own rework.
Trusted Brands We Service in Downey
We stock and install professional-grade bathroom products from Kohler, Moen, Toto, Grohe, KraftMaid, Wellborn, Cambria, Silestone, and Caesarstone. That means we’re not running across town to a big-box store when a Downey customer selects a KraftMaid vanity with a Cambria quartz top. We measure, order, receive, and install the real product, and we stand behind it. Whether you’re after a Toto toilet for a small bath near the 605 or a Grohe thermostatic valve for a walk-in shower off Imperial Highway, the materials come through our supply channels, not a pickup bed.
Common Bathroom Remodeling Problems We See in Downey Homes
- Cast-iron drain lines under mid-century slabs. Homes built in the 1940s and 1950s across Downey often have original cast-iron waste pipes that have scaled shut over 60 to 70 years. We’ve pulled tubs near Furman Park and found P-traps so clogged a pencil couldn’t pass through, which means the drain has to be re-run to current code before any tile work begins.
- Galvanized supply lines behind shower walls. The same era of construction brought galvanized steel water lines that corrode from the inside, restricting flow. When we open a wall to move a shower valve, it’s not uncommon to find the supply pipes need replacement from the wall stub back to the main.
- Subfloor rot under tubs and showers. Slow leaks from 60-year-old tub drains and failed grout lines quietly rot the subfloor and joists underneath. In Downey’s mid-century tract homes, the floor under the tub is often fir or plywood over crawlspace, and once it’s soft, code requires sistering before setting a new pan.
- Low allowances on finish materials. Some Downey quotes set a line-item allowance of $400 for a vanity top, then the homeowner selects Cambria quartz and the price jumps mid-job. We quote the actual spec, not a placeholder number you’ll blow past at the showroom.
See the difference
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AfterPricing for Bathroom Remodeling in Downey, CA
Here’s what a Downey bathroom remodel costs, line by line:
| Scope | Downey Price Range |
|---|---|
| Bathroom Remodel (full gut, 5×8 to 5×10) | $9,000 – $28,000 |
| Small Bathroom Remodel (powder or 5×5) | $5,000 – $12,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Bathroom Vanity Installation | $800 – $3,000 |
What moves the number is what’s behind the tile: the age of the drain lines, the condition of the subfloor, whether we’re relocating plumbing or keeping the same footprint, and the finish level you choose. Downey is a mid-century tract-home city, and we price with that reality in mind. You’ll get a written line-item price before any work starts. Call (803) 680-2547 to schedule a free estimate, and ask us to walk you through the permit path and the schedule with real dates.
We Also Serve Cities Near Downey
Our crews serve Downey and the surrounding communities of Bell Gardens, Santa Fe Springs, Paramount, and Bellflower. If you’re in one of those nearby cities and planning a bathroom remodel, the same written pricing, crew verification, and 365-Day Done Right Promise applies. Call (803) 680-2547 to book a free estimate.
Serving Downey, CA - Our Local Coverage Area
We’re based in the Downey 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 Downey
Yes, a Downey bathroom remodel that changes plumbing, electrical, or structural components requires a building permit from the City of Downey Building Division. Swapping a vanity or a faucet in the same location generally doesn’t, but moving a drain, adding a new circuit for heated floors, or altering wall framing does. We pull every permit the scope requires and schedule inspections so the work passes sign-off before we call the job done.
A full bathroom remodel in Downey runs $9,000 – $28,000, while a small bath remodel comes in at $5,000 – $12,000. Walk-in shower installation runs $4,500 – $12,000, a tub-to-shower conversion is $3,500 – $10,000, and a vanity install runs $800 – $3,000. The final number depends on what’s behind the walls and the finish level you choose. Call (803) 680-2547 for a written line-item quote specific to your home.
Most Downey bathroom remodels run three to six weeks from demo to final inspection. A straightforward vanity and fixture swap might finish in one to two weeks, while a full gut with drain replacement, subfloor repair, and tile work runs longer. Permit review time at the City of Downey can add one to three weeks depending on the current volume. We’ll give you a start date, milestone dates, and a completion date in writing.
Because the original bid didn’t account for what’s behind a 60-year-old Downey bathroom wall. Cast-iron drains that need replacement, galvanized supply lines, and soft subfloor are the three most common change-order triggers. That’s why we write our price after a real walkthrough, flag probable unknowns before demo, and give you a written number on every change before we proceed. No surprise invoice.
Yes, a curbless or low-threshold walk-in shower is one of the most common accessibility updates we build in Downey. We can remove the existing tub, set a slip-resistant shower pan flush to the floor, install grab-bar blocking inside the walls, and widen the entry if your layout allows. The conversion runs $3,500 – $10,000 depending on drain work and enclosure choices. Call (803) 680-2547 and we’ll walk the space with you.
What A Downey Bathroom Remodel Actually Involves

Downey is a mid-century tract-home city. Much of the housing stock off Paramount Boulevard and near Downey Avenue went up in the 1940s and 1950s, which means most bathroom remodels here open up a 60- to 70-year-old cast-iron or galvanized drain system that has to be addressed before any tile goes back. If your home is a 1952 ranch near Furman Park, the odds are high that the original P-trap is scaled shut and the subfloor under the tub is soft from a slow leak that’s been dripping since before you bought the place.
Here’s the sequence, start to finish: we walk the space, write a line-item price, pull permits, schedule the crew, protect the path from the front door to the bathroom, demo to the studs, inspect the drain and supply lines, repair or replace what’s compromised, rough in plumbing and electrical, pass rough inspection, then sheetrock, waterproof, tile, set the vanity and fixtures, paint, and close with a final inspection and a walkthrough. We don’t skip steps, and we don’t hide surprises in a verbal “I’ll take care of it.”
A family on the 8000 block near Furman Park hired us to gut a hall bath in a 1952 ranch, and once we pulled the tub the original cast-iron P-trap was scaled shut and the subfloor under it was soft from a slow leak. We re-ran the drain to current code, sistered the joists, set a KraftMaid vanity with a Cambria top, and turned a Kohler tub-to-shower conversion in the same footprint. Rough-in and final inspection both signed off before the punch list cleared. That’s the Downey bathroom remodel reality: the job is never just tile and a new vanity. It’s the 70-year-old plumbing behind the wall, and the difference between a quote that admits that upfront and one that hopes you won’t notice until the change order hits.
If you’re planning a bathroom remodel in Downey, call (803) 680-2547 for a free estimate. We’ll walk your home with you, talk through what your specific house likely has behind the walls, and give you a written price before any work starts. No pressure, no speculation, just a real number and a real schedule.
Written by Isaac Pruett, Owner at Mason Remodeling, serving Downey with written-price bathroom remodeling since 2004.










