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Unilock Bathroom Remodeling: The Houston Owner’s Guide
If you’re searching for Unilock bathroom remodeling in Houston, the honest answer is this: you don’t have a Unilock problem, you have a bathroom problem that you want solved with the same quality Unilock represents. Most Houston homeowners land on this page because they’ve got a failing shower pan, a cracked tile surround, or a bathroom floor that’s started to feel spongy in the high-humidity months between May and September. A full bathroom remodel in Houston typically runs $9,000 – $28,000 depending on square footage, waterproofing requirements, and fixture choices. We’re Penhallow Remodeling Houston, and we install Unilock products as part of complete bathroom remodels, with a written price before any work starts.
Here’s the thing about Unilock in a bathroom context worth understanding up front: Unilock is primarily known for concrete pavers and retaining wall systems, not bathroom fixtures. The connection most Houston homeowners make is wanting that same durability and precision in their bathroom materials. What we do at Penhallow Remodeling Houston is bring Unilock-grade thinking to bathroom waterproofing, tile work, and shower construction. We’re an independent contractor, not affiliated with Unilock, but we install their paver and hardscape products and apply the same standard to every bathroom we open up.
Which Unilock Models This Applies To
When it comes to bathroom remodeling, Unilock products typically enter the picture in one of three ways: paver flooring in a spa-style master bath, Unilock wall block as an accent or outdoor shower surround, or homeowners who know the Unilock name from their patio and want the same expectation of quality transferred indoors. The compatibility question is less about model numbers and more about substrate preparation, which is the real make-or-break detail in any Houston bathroom.
Concrete pavers used indoors require a modified thinset mortar and a properly sloped mortar bed beneath. The paver itself doesn’t fail. What fails is the layer beneath it when someone cuts corners on waterproofing or slope. In Houston’s clay-heavy soils, especially in neighborhoods like Meyerland and Bellaire where foundation movement is a documented reality, any rigid bathroom floor system has to accommodate movement without cracking. Trevor Nash grew up in the San Fernando Valley outside Los Angeles and studied construction technology at LA Trade-Technical College, and he’ll tell you the same thing he learned on tract homes there: a straight wall is harder to build than it looks, and a bathroom floor that lasts in shifting soil takes more than a pretty tile on top. Give me the straight story on what you need, and I’ll give you the straight number on what it costs.
OEM versus aftermarket matters less for Unilock in bathrooms than it does for, say, a faucet cartridge. The paver is the paver. What matters is the installation system beneath it. We stock Unilock pavers alongside KraftMaid, Cambria, and Silestone products for the other elements of your remodel, and every material gets paired with the right substrate for Houston’s specific humidity and soil conditions.
Styles & brands we work with
Signs Your Unilock Bathroom Remodeling Is Failing
- Grout cracking along the shower floor perimeter. This is usually the first visible sign that the mortar bed underneath is flexing. In Houston, where summer humidity pushes moisture through every gap, cracked grout lets water reach the substrate long before you see any actual leak.
- A paver or tile that sounds hollow when tapped. This means the mortar bond has broken. It happens most often when thinset was applied over an improperly cured bed or when the installer skipped the membrane. One hollow tile is a warning. Three hollow tiles is a tear-out.
- Musty smell that won’t leave, even after cleaning. Water is sitting somewhere it shouldn’t be. In a Houston bathroom with 80%+ humidity days from June through September, trapped moisture behind a failing shower pan grows mold within weeks, not months.
- Visible efflorescence, which is the white powdery residue, on paver surfaces. This tells you water is moving through the material and carrying minerals with it. On an outdoor patio that’s cosmetic. Inside a bathroom it means your waterproofing has already been compromised.
- Floor feels spongy or has a slight bounce near the shower threshold. The subfloor or mortar bed has absorbed enough water to lose structural integrity. This is the point where you stop patching and start planning a full replacement.
See the difference
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After
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After
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AfterReplacement Cost & What’s Included
A full Unilock-related bathroom remodel in Houston lands between $9,000 and $28,000. The spread comes down to three things: how much waterproofing has to be rebuilt, whether you’re keeping the existing footprint or moving walls, and what fixtures you choose. A small bathroom with a basic paver floor and standard shower might sit at the lower end, around $9,000 – $12,000. A master bath with heated floors, a walk-in shower with Unilock accent walls, and Kohler or Moen fixtures will push toward the upper end.
Every estimate we write includes the same line items: demolition and disposal, substrate repair and waterproofing (Schluter or equal membrane system), material, labor, and a written guarantee on the entire job. That guarantee is our 365-Day Done Right Promise. If something fails inside that year, we come back and fix it at no charge. No service call fee, no re-inspection fee, no argument. Here’s the exact price guidance for the work involved:
| Scope | Houston Installed Range |
|---|---|
| Full bathroom remodel (Unilock materials) | $9,000 – $28,000 |
| Small bathroom remodel | $5,000 – $12,000 |
| Walk-in shower installation | $4,500 – $12,000 |
| Tub-to-shower conversion | $3,500 – $10,000 |
| Shower replacement | $3,000 – $8,500 |
| Bathroom vanity installation | $800 – $3,000 |
The price we quote before work starts is the price you pay. No change orders because we “discovered” something after demo day. We look before we bid, and we write it down. That’s the Kingswell Way, and it’s been our standard since 2004.
DIY or Call Us?
Here’s the honest split. You can absolutely handle the diagnosis: tap your tiles, check for cracked grout, look for efflorescence, and note whether the floor flexes. You cannot safely handle the repair if the problem is beneath the surface. Removing tile or pavers from a failed shower without disturbing the waterproofing layer is like trying to peel a sticker off paper without tearing it. It can be done, but the margin for error is thin, and the cost of getting it wrong in Houston is mold, rot, and a much bigger bill later.
If your issue is purely cosmetic, like a single loose tile or a small grout crack up high on a wall, a careful homeowner with the right tools can usually handle it. If the problem involves the shower pan, the threshold, or any sign of moisture beneath the surface, that’s a professional job. Water damage is the one thing that gets exponentially more expensive the longer you wait. Call (254) 527-5340 and we’ll give you a straight answer, even if the answer is “you can do this one yourself.”
FAQs
A properly installed bathroom floor with a quality waterproofing membrane should last 30 years or more. The materials we use are rated for lifetimes. What actually fails, when it fails, is the installation. In Houston’s humidity and on our clay soils, the two things that shorten lifespan are missing waterproofing and substrate movement. We build for both. Call (254) 527-5340 for a free estimate and we’ll show you exactly what’s under your current floor before we touch anything.
Sometimes. If the damage is isolated to a single area and the waterproofing beneath is intact, a targeted repair is possible. But if the shower pan is compromised or the mortar bed has absorbed water, patching is throwing money away. We’ll tell you which situation you’re in before we bid, and we’ll show you why. The estimate is free. Call (254) 527-5340 to schedule a look.
A typical bathroom remodel in Houston takes 2 to 4 weeks from demo to final walkthrough, depending on scope. A shower replacement is usually 5 to 7 days. We give you a defined arrival window before we start, and we hit it. The Kingswell Way is simple: say the price before the work, show up in the window we gave, leave the place cleaner than we found it. Call (254) 527-5340 and we’ll give you a written timeline with your written price.
Yes. We keep Unilock pavers and wall block in our Houston inventory, along with the modified thinsets and waterproofing membranes required for indoor installation. We also stock KraftMaid cabinetry, Cambria and Silestone countertops, and Kohler and Moen fixtures so your entire bathroom can be sourced and scheduled without waiting on backorders. Call (254) 527-5340 to confirm availability for your specific product.
Ready to get a straight number on your bathroom remodel? Call Penhallow Remodeling Houston at (254) 527-5340. A real person answers, any hour. We’ll schedule a walkthrough, write you a price that holds, and put the guarantee in writing before a single tile comes up.
Written by Trevor Nash, Owner, Penhallow Remodeling Houston at Penhallow Remodeling Houston, serving Houston and nearby areas.
