Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Unilock Bathroom Remodeling: The West Covina Owner’s Guide
If you have Unilock pavers or wall units in a West Covina bathroom and something has failed, we stock Unilock-compatible replacement materials and install them, typically for $9,000 – $28,000 for a full bathroom remodel in West Covina. Most homeowners discover a problem the same way: a paver shifts underfoot near the shower, a wall unit cracks behind the vanity, or water starts pooling where it never pooled before. We can usually diagnose the issue on a first visit and give you a written price before any work starts.
Unilock is known for outdoor hardscaping, but plenty of West Covina homes use Unilock pavers and wall blocks inside bathrooms and adjacent wet areas. When a paver fails indoors, it’s rarely just the paver. It’s the substrate underneath, the slope toward the drain, or a waterproofing layer that was never installed correctly in the first place. That’s the part most homeowners don’t see coming: the visible crack is a symptom, not the cause. Isaac Pruett and our crew have pulled up enough failed bathroom pavers in this region to know what’s waiting underneath before we ever lift the first stone.
Key takeaways:
- We carry Unilock-compatible pavers and wall units for bathroom applications, plus the setting materials and waterproofing membranes to do the job right.
- Installed bathroom remodels in West Covina run $9,000 – $28,000, depending on square footage, substrate condition, and whether we’re matching existing Unilock product or replacing the whole surface.
- We are an independent contractor, not affiliated with Unilock. That means we can match your existing Unilock product or recommend an equivalent without brand bias.
- Every project gets a written price before tools come out, and every install is covered by our 365-Day Done Right Promise.
Which Unilock Models This Applies To
Unilock manufactures product lines that show up in West Covina bathrooms more often than people expect. The most common we see are the Series pavers (dimensional, uniform-thickness units originally designed for patios and pool decks), Estate Series wall blocks (used as bathroom half-walls, bench surrounds, and tub surrounds), and the U-Cara multi-face wall system, which some West Covina homeowners used for decorative shower feature walls.
The compatibility gotcha with Unilock indoors: not every Unilock paver is rated for indoor wet-area installation. Unilock designs most products for outdoor freeze-thaw cycles and drainage. Indoors, the failure point is rarely the paver itself. It’s the lack of a proper slope-to-drain and a bonded waterproofing layer like Schluter Kerdi membrane or a liquid-applied membrane underneath. If you have original Unilock paperwork, great, but we can identify the line from a photo and a measurement of the paver joint width. Unilock dimensions are unusually precise, which helps with matching. If OEM product is discontinued, high-quality equivalents from Belgard or Techo-Bloc often match Unilock color blends closely enough that most homeowners can’t tell the difference. We’ll show you samples side by side before any decision is made.
Styles & brands we work with
Signs Your Unilock Bathroom Remodeling Is Failing
- A paver rocks or shifts when you step on it. This means the setting bed underneath has washed out or compacted unevenly. In West Covina bathrooms, this is most common near shower curbs where water has been migrating under the edge for months. The paver isn’t broken; the support under it is gone.
- Water pools in a low spot and doesn’t drain. That’s a slope failure, not a paver failure. Indoor paver floors need a minimum 1/4-inch-per-foot slope toward the drain. When the slope is flat or reversed, water sits, minerals build up, and efflorescence turns the grout white and crusty.
- Cracks run through multiple pavers in a straight line. This is usually movement in the substrate below, often a concrete slab crack telegraphing through the setting bed. West Covina sits on expansive clay in many neighborhoods, and seasonal ground movement shows up indoors as stress cracks in tile and paver floors alike.
- Grout or sand joints wash out and never stay filled. In a bathroom, this means water is getting under the pavers and carrying the joint material away. Re-grouting or re-sanding won’t fix it; the waterproofing below has to be addressed.
- The wall blocks near the tub or shower are bowing outward. This can be a moisture expansion issue or a structural one. Either way, a bowed wall in a wet area will only get worse. Left alone, it can damage surrounding drywall and framing.
Replacement Cost & What’s Included
A full Unilock bathroom remodel in West Covina typically runs $9,000 – $28,000, and the range is driven by three things: how much square footage of paver or block surface exists, what condition the substrate and waterproofing are in, and whether we’re doing a like-for-like swap or a full tear-out and rebuild. A small bathroom remodel lands at $5,000 – $12,000. A walk-in shower installation with Unilock-compatible surfaces runs $4,500 – $12,000.
What’s included in our price: removal of failed material, substrate repair or replacement, slope correction, bonded waterproofing, new setting materials, pavers or blocks matched to your existing Unilock product, grout or jointing sand rated for wet areas, and a written workmanship warranty. You should know what you’re getting before we ever pick up a tool. That means a line-item written price, not a verbal ballpark. No change orders unless you ask for something different mid-project. If the substrate repair is more extensive than expected, we say so before we proceed, not after the invoice is written.
| Scope | Typical Installed Price in West Covina |
|---|---|
| Full bathroom remodel with Unilock surfaces | $9,000 – $28,000 |
| Small bathroom remodel | $5,000 – $12,000 |
| Walk-in shower installation (Unilock-compatible) | $4,500 – $12,000 |
| Paver floor repair only (small area) | $800 – $3,000 (assessed on visit) |
See the difference
Before
After
Before
After
Before
AfterDIY or Call Us?
Here’s the honest answer for a West Covina homeowner: you can safely check the surface symptoms yourself. Note which pavers move, where water pools, and whether cracks run in a line. Take photos. That helps us quote faster. But pulling up pavers in a bathroom is not a weekend project. You’re dealing with waterproofing that sits between your floor and the framing below. If you puncture that membrane or reset a paver on a bad bed, you might create a leak that goes undetected for months and rots the subfloor. That repair starts at four figures and goes up fast. We’ve pulled up bathroom floors in older West Covina homes where a five-paver DIY repair turned into a full subfloor replacement. If you’re not sure, call us at (707) 760-7579. We’ll tell you over the phone whether it sounds like a surface fix or a substrate problem, and we’ll give you a straight answer about what it’s likely to cost.
Can You Match Existing Unilock Pavers That Are Discontinued?
Often, yes. Unilock has consolidated and changed product lines over the years, and West Covina homeowners sometimes find that the specific paver color or size they installed ten years ago is no longer manufactured. We work with Unilock, Belgard, and Techo-Bloc distribution to source close matches, and we can show you physical samples before any work starts. The key is to find a paver that’s dimensionally identical first, then match the color blend. If OEM is truly gone, a high-quality equivalent from Belgard or Techo-Bloc is usually the practical answer. Mason Remodeling Co West Covina is an independent contractor, so we’re free to source the best match from any manufacturer, not just Unilock.
FAQs
Unilock pavers safely installed indoors over a proper waterproofing membrane and sloped setting bed can last 25 years or more. But the membrane underneath is rated for roughly 10 to 15 years depending on moisture exposure, so the waterproof layer usually fails before the paver does. If you’re seeing grout washout or movement in a bathroom floor that’s 10 years old or older, the membrane is likely the culprit, not the paver. Call (707) 760-7579 and we’ll assess it on a visit.
In many cases, yes. If the problem is isolated to one area and the waterproofing is still intact, we can cut out the affected section, rebuild the setting bed, and reset matching pavers. The repair price depends on what we find underneath. If the membrane is compromised, a patch is risky and we’ll tell you so plainly. For an exact quote, call (707) 760-7579 to schedule a visit, estimates are free.
Most Unilock bathroom replacements in West Covina take 5 to 10 working days, depending on the scope and whether the shower or tub area is involved. A small floor repair can be done in 2 to 3 days. We’ll give you a schedule in writing before we start, and we hold to it. If a substrate problem adds days, you’ll know as soon as we know.
We keep common Unilock-compatible paver sizes and setting materials on hand, but for an exact color or line match we usually order from Unilock distribution or a partner brand, which adds 2 to 5 days for delivery. We’ll match your existing product as closely as possible and show you the physical paver before installation. Call (707) 760-7579 with your product information or a photo, and we’ll tell you what’s available now.
Written by Isaac Pruett, Owner, Mason Remodeling Co West Covina at Mason Remodeling Co West Covina, serving West Covina and nearby areas.
