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Oldcastle Bathroom Remodeling: The Houston Owner’s Guide
If you’re reading this, you likely already own an Oldcastle product and something has failed, cracked, leaked, or simply stopped looking right. A full Oldcastle bathroom remodel in Houston typically runs $9,000 – $28,000 depending on whether you’re replacing a single component or gutting the room to the studs. Most homeowners discover the problem in one of three ways: a tile crack that spreads, a shower pan that no longer drains, or water staining on the ceiling below the bathroom. We keep common replacement parts and compatible materials on our trucks, and we’ll give you a written price before a single wall is opened.
We’re an independent Houston remodeling contractor, not affiliated with Oldcastle. That matters because we’re free to recommend the right fix, whether that’s an Oldcastle-spec replacement or a better material for our climate.
Which Oldcastle Models This Applies To
Oldcastle produces a wide range of building products, but in bathrooms the parts homeowners call us about fall into a few categories: precast shower pans, tile backer board systems, and surface-applied waterproofing membranes. The compatibility gotcha we see most often in Houston: Oldcastle shower pans manufactured before roughly 2015 used a slightly different drain collar diameter than current production. If you try to swap a new drain assembly onto an older pan, you’ll find it sits proud by about an eighth of an inch, which means water pools instead of draining. We measure the drain opening first, every time.
Identifying what you have is usually straightforward. The pan will have a manufacturer stamp on the underside or along the curb if it’s a solid surface unit. Tile backer boards have printed labels along the edge. If you can’t find a label, take a photo of the drain and the curb profile and we’ll identify it during a free estimate visit. For most Oldcastle bathroom products, a quality aftermarket equivalent works as well as OEM, but the drain fit has to be confirmed before ordering. We source what’s correct for the application, not just what’s cheapest to buy.
Styles & brands we work with
Signs Your Oldcastle Bathroom Remodeling Is Failing
- Grout lines staying dark after the shower dries. That darkness means water is wicking into the grout and sitting there. The underlying cause is usually a failed sealant layer or a cracked pan underneath, not the grout itself, and regrouting alone won’t fix it.
- Tile movement or a hollow sound when tapped. Loose tile in an Oldcastle installation almost always points to substrate failure behind it – the backer board has absorbed moisture and swelled, breaking the bond. Houston’s humidity makes this worse than in drier climates.
- Water staining on the ceiling below the bathroom. This is the symptom that sends people to the phone fastest. By the time water shows through drywall, the pan or waterproofing layer has been leaking for a while, not just days.
- A shower pan that flexes underfoot. Solid surface pans should not move. Flex means the mortar bed beneath the pan has broken down or was never properly set, which will eventually crack the pan and leak into the floor framing.
- Mold along the baseboard or an odor that won’t leave. Persistent musty smells in a Houston bathroom are almost always trapped moisture inside the wall cavity, often behind a failing waterproofing membrane. The fix requires opening the wall, not masking the smell.
If you’re seeing any of these, don’t wait. Water damage in our climate moves through framing quickly, and what starts as a $300 sealant repair becomes a $9,000 gut remodel within a season or two.
See the difference
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AfterReplacement Cost & What’s Included
Here’s what Oldcastle-related bathroom work costs in Houston, installed, with our written-price guarantee:
- Shower pan replacement (Oldcastle-compatible): $3,000 – $8,500 depending on access and whether the drain assembly also needs replacing
- Tub-to-shower conversion using Oldcastle backer and pan systems: $3,500 – $10,000
- Full bathroom remodel with Oldcastle-compatible materials: $9,000 – $28,000
- Small bathroom update (vanity, fixtures, tile repair): $5,000 – $12,000
What drives the range: whether the subfloor needs work once the old pan comes out, whether framing has water damage, and what finish materials you choose. We install Cambria and Silestone for countertops, Kohler and Moen for fixtures, and the price you get in writing before work starts is the price on the final invoice. Every project includes our 365-Day Done Right Promise: if something we installed fails within a year, we come back and fix it at no charge. That’s in writing, not spoken.
DIY or Call Us?
Here’s the honest split. You can safely diagnose some things yourself: check for loose tile with a gentle tap, mark the permanent grout-darkening with tape so you can see if it spreads, and check whether your shower drain cover spins freely or is seized. That’s useful information to have when we arrive. What you should not do is pull up a shower pan or open a tiled wall yourself. Oldcastle pans are set in mortar, and getting one out without damaging the surrounding tile and waterproofing takes experience, plus cutting into a wall without knowing where supply lines run is asking for a flood. If the pan is leaking, the subfloor beneath it may already be soft, and standing on it while working makes the problem worse. For anything involving drain connections or waterproofing, call a licensed contractor.
Give me the straight story on what you need, and I’ll give you the straight number on what it costs. Call (254) 527-5340 and we’ll set up a free estimate visit. Trevor Nash will walk the bathroom with you, explain exactly what’s failing and why, and hand you a written price before you decide anything.
FAQs
A properly installed Oldcastle shower pan should last 20 – 25 years in Houston before showing meaningful wear. The real-world number we see is closer to 12 – 15 years, and it’s almost never the pan material itself that fails. It’s the work underneath: a poorly mixed mortar bed, a drain assembly that wasn’t sealed correctly, or movement in the subfloor. Houston’s clay-heavy soils shift with our wet-dry cycles, and houses near the Meyerland area especially see more movement than homes on the north side, which shortens the effective lifespan of any rigid pan if the substrate wasn’t built to accommodate it. Call (254) 527-5340 if you want an honest assessment of yours.
Small surface chips can sometimes be filled cosmetically, but a crack that runs through the pan is a replacement job. The issue is that water has already reached the mortar bed, and epoxy or sealant applied to the top will fail within months as the pan continues to flex. In Houston’s humidity, the trapped moisture behind a patched crack keeps working on the framing. Replacing the pan costs more up front, but it’s the fix that stops the damage. We’ll show you the crack and the options before recommending anything, and the estimate is free.
Most Oldcastle-compatible shower pan replacements in Houston take two to three working days from removing the old pan to a waterproof, usable shower. That includes setting the new pan in fresh mortar, reconnecting the drain, and sealing all transitions. If tile work is part of the job, add another day or two for grout to cure. You’ll know the schedule before we start, and our arrival window is set in writing at the time you sign.
We carry common drain assemblies, sealants, and backer board on our trucks so that straightforward repairs can often start the same day we diagnose the problem. For Oldcastle-specific pan units, we order the correct size and drain configuration from our supplier, which usually arrives within a few business days in Houston. If we have to order, you’ll know the lead time and the total price before we start any work. If you’re wondering whether we can get your exact part, call (254) 527-5340 and ask – a real person answers.
Written by Trevor Nash, Owner, Penhallow Remodeling Houston at Penhallow Remodeling Houston, serving Houston and nearby areas.
