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Oldcastle Bathroom Remodeling: The Austin Owner’s Guide
If you have an Oldcastle bathroom product that’s failing, you’re likely looking at a full bathroom remodel rather than a quick part swap. Oldcastle is primarily a manufacturer of concrete, masonry, and hardscape materials, not a fixture brand, so “Oldcastle bathroom remodeling” in Austin typically means the tile, backer board, or mortar bed has failed, or you’re working with an Oldcastle-supplied substrate that’s now compromised. A complete bathroom remodel in Austin runs $9,000 – $28,000 installed. We can typically start your project within two to three weeks of the written estimate, depending on material lead times and permit scheduling with the City of Austin.
Most homeowners discover the problem the same way: cracked grout lines that keep coming back, a shower floor that flexes or shifts underfoot, or water staining on the ceiling below the bathroom. By the time the symptom shows, the substrate (the moisture-resistant layer behind your tile) has usually failed. Trevor Nash and our team see this most often in Austin homes built between 1995 and 2015, when Oldcastle-supplied cement board was used widely in production builder communities like Steiner Ranch, Circle C, and Avery Ranch.
Which Oldcastle Models This Applies To
Here’s the honest part: Oldcastle doesn’t make toilets, vanities, or faucets. What they make, and what Austin builders installed for years, is the structural layer behind the finish. That includes Oldcastle’s PermaBase cement board, their mortar and grout lines carried at local supply houses, and in some cases their precast shower pans. If your builder used Oldcastle PermaBase as the tile substrate and that’s now failing, a targeted repair is rarely the right fix. The failure usually runs deeper than the visible crack.
To confirm what you’re working with, peel back the escutcheon plate behind your shower handle and look at the exposed edge. If you see a gray, cement-like board with fiberglass mesh on the surface, that’s a cement backer board, and in many Austin builds of that era it’s PermaBase. The good news: today’s replacement options outperform it. We install Schluter Kerdi board and Wedi panels for wet areas, which are fully waterproof rather than merely water-resistant. That’s the key upgrade when we rebuild an Oldcastle-era shower.
One compatibility note worth knowing: if your shower pan is an Oldcastle precast unit, it was poured to the exact dimensions of your original framing. A modern replacement means re-sloping the floor with a bonded mortar bed, which changes your finished curb height by roughly a half inch. We account for that when we set your new shower door and glass. It’s a detail that gets missed by crews who don’t do this every week in Austin.
Styles & brands we work with
Signs Your Oldcastle Bathroom Remodeling Is Failing
- Grout cracks that return within months of re-grouting. The tile is moving because the substrate behind it has lost its bond or is swelling with moisture. No grout sealer fixes that.
- A shower floor that feels spongy or flexes. This means the mortar bed underneath has broken down or was never properly sloped. Water is pooling under the tile, not draining out.
- Stains or soft spots on the ceiling below the bathroom. Water is traveling through the failed substrate and pooling on the subfloor. By the time you see the stain, the damage underneath is bigger than the circle on your ceiling.
- A musty smell that never goes away, even after cleaning. That’s mold feeding on moisture trapped in the wall cavity. In Austin’s humidity, a wet substrate never dries on its own.
- Efflorescence, the white chalky powder, on tile or grout. Minerals are being pulled through the cement board as water moves through it. That means the board is saturated, not just damp.
See the difference
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After
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AfterReplacement Cost & What’s Included
A full bathroom remodel in Austin runs $9,000 – $28,000 installed. On the low end, that’s a standard 5×8 bath with a tub-shower combo, mid-grade tile, a new vanity, and a basic toilet and faucet set. The high end covers a larger primary bath with a walk-in shower, free-standing tub, heated floors, and higher-end fixtures from Kohler or Moen.
What drives the number the most is the shower system. A tub-to-shower conversion starts around $3,500 for the labor and materials on the shower itself, but that assumes the framing and subfloor are sound. When an Oldcastle-era substrate has failed, demolition goes deeper, and we’re often replacing studs, subfloor sections, and sometimes floor joists before new cement board goes up. We inspect all of that before we touch a tile.
Every quote from us is a written number before work starts. The line items show exactly what you’re paying for: demo, haul-off, any framing repair, waterproofing, tile and setting materials, fixtures, and finish work. The number on day one is the number on the invoice. If something under the surface changes the scope, you’ll see it in a written change order before we pick up a hammer, not after.
Your remodel is covered by our 365-Day Done Right Promise. If anything we installed fails inside that year, we come back and fix it at no charge. That’s in writing on every project.
DIY or Call Us?
There’s a safe amount an owner can do before calling, and a line where it stops being smart. You can pop off a loose tile and look at what’s behind it. If it crumbles when you scratch it with a screwdriver, you have your answer. You can also check your water meter when nothing is running to see if a supply line is leaking into the wall behind the tile.
What you shouldn’t do is start pulling down wet drywall or prying up a whole shower pan without knowing what’s behind it. Austin homes from the Oldcastle era sometimes hide mold, asbestos in the original drywall compound, and framing damage that needs a structural eye. That’s not a weekend job, and it’s not a handyman job. We do this every week, we know what the inside of a failed Texas shower looks like, and we’ll tell you straight what you’re dealing with after a single visit. Call us at (325) 225-5429 and we’ll walk through it together.
FAQs
A properly waterproofed remodel using modern systems like Schluter Kerdi or Wedi typically lasts 25 to 30 years in Austin, where the humidity and hardness of the water put real stress on shower materials. The failure point in the original build was almost always the substrate, not the tile, and today’s waterproofing methods are a fundamentally different approach. Give us a call at (325) 225-5429 and we’ll tell you exactly what your current setup has and how long it has left.
Almost never. When cement board substrate fails, it fails structurally: the board loses its bond to the studs, the tile bond goes with it, and moisture has already moved through the wall cavity. You can patch a tile and make it look fine for six months, but the water problem underneath keeps working. The honest answer we give Austin homeowners is that a failed substrate means a rebuild, not a repair. Get a free estimate from us and we’ll show you what’s actually happening behind the tile.
A standard 5×8 bathroom remodel takes us 10 to 14 working days from demo to final trim and grout. A larger primary bath with a custom shower and free-standing tub runs three to four weeks. Permitting with the City of Austin adds a few days at the front end, which we handle for you. Call (325) 225-5429 and we’ll give you the real timeline for your specific bathroom.
We don’t stock Oldcastle cement board, because it’s no longer the product we’d recommend in a wet area. What we do carry and install are the modern equivalents: Schluter Kerdi board, Wedi panels, and USG Durock for dry-area substrate work. We also work regularly with KraftMaid and Bertch vanities, Cambria and Silestone countertops, and Kohler and Moen fixtures, so the entire remodel comes from materials we stand behind. Tell me what you need, I’ll tell you what it costs, and we’ll go from there.
Written by Trevor Nash, Owner, Penhallow Remodeling Austin at Penhallow Remodeling Austin, serving Austin and nearby areas.
