Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Unilock Bathroom Remodeling: The San Antonio Owner’s Guide
Unilock bathroom remodeling in San Antonio typically runs $9,000 to $28,000, depending on whether you’re replacing a shower surround, redoing a full wet area, or pulling tile down to the studs and rebuilding waterproofing from scratch. We stock and install Unilock-compatible wall panels, trim pieces, and substrate materials, and we can usually start your project within two to three weeks of the written estimate. Most San Antonio homeowners discover they need this work done when a corner bead cracks, a panel pulls away from the wall, or water starts showing up where it shouldn’t be – often in a guest bath that gets used by kids and then suddenly by visiting family.
Which Unilock Models This Applies To
Unilock manufactures wall panel systems and bath surrounds in several profile depths and edge treatments, and not every part interchanges across their product lines. The most common compatibility gotcha we see in San Antonio homes involves the corner profiles: Unilock’s beveled-edge panels require a matching inside-corner trim with a wider return than their square-edge line, and homeowners who grab the wrong trim at a big-box store end up with a 3/8-inch reveal gap that collects soap scum and water. Before you order anything, measure the panel thickness at the tongue-and-groove edge – most Unilock bath panels sit at 5/16 to 3/8 inch, and the trim piece must be sized for that exact profile. We keep OEM and quality aftermarket trim on hand for the panels we install, and we’re happy to identify what you have by photo before you spend money on the wrong part. We are an independent San Antonio contractor and not affiliated with Unilock; we install their materials because the finished look holds up well in South Texas humidity when the waterproofing behind it is done correctly.
Styles & brands we work with
Signs Your Unilock Bathroom Remodeling Is Failing
- Water beading on the outside of the panel edge. This usually means the silicone bead at the tub flange or pan lip has separated. In San Antonio’s hard-water environment, mineral buildup accelerates that separation and then traps moisture behind the panel.
- Corner trim pulling loose or bowing outward. Most often this is substrate movement – the wall behind the panel has swelled from slow moisture intrusion, or the original adhesive was applied over old wallpaper or texture that let go.
- Soft drywall or bubbling paint on the wall opposite the shower. This is the classic San Antonio slow leak. The panel face can look fine for a year while water works its way through a failed seam behind the trim.
- Mold speckles along the bottom course of panels. South Texas humidity plus a weeping seal means mold finds a home within a season. It won’t just clean off – the seal has already failed behind it.
- Panels flexing when you press on them. That’s a sign the adhesive has debonded and the panel is now floating. Every flex cycle works water further into the wall cavity.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
For a full Unilock bathroom remodel in San Antonio, plan on $9,000 to $28,000. A smaller project – say a tub surround replacement with the existing tub staying put – lands in the $5,000 to $12,000 range, while a complete gut with new fixtures, waterproofing, and tile or panel work climbs toward the top of the range. The written price you sign before work starts covers demolition, haul-away, substrate repair and waterproofing, new Unilock panels and trim, fixtures if specified, and the final clean-up with a photo so you can see the job site was left right. Every project carries our 365-Day Done Right Promise: if it’s not done right after the job is complete, we make it right.
What drives the range most in San Antonio is what we find behind the wall. Houses in Alamo Heights and older parts of King William often have original plaster over rock lath, and getting a flat substrate for Unilock panels takes more prep than drywall in a 2000s build near Stone Oak. We write the scope down before a single tool leaves the truck – no line items added after demo day.
DIY or Call Us?
What you can safely check yourself: look for cracked silicone at the base and corners, press panels to feel for flex, and run a hand along the trim to feel for bulges. That tells you whether you have a problem worth pricing. What you shouldn’t do yourself is pull the panels off to look. Water-damaged substrate in a San Antonio bathroom usually means we’re dealing with mold behind the wall, and opening that up without containment spreads spores through the house – especially bad if you’ve got kids and pets at home. Our crews use shoe covers, drop cloths on the floors, and quiet tools during nap and school hours where possible. If you’ve spotted flex or water, call (432) 233-0976 and we’ll schedule a look. The estimate is written and free.
FAQs
In San Antonio’s humidity, properly installed Unilock panels should last 15 to 20 years before the seals need attention. The panels themselves hold up well; what fails first is the silicone at seams and flanges, which we see most often around year 8 to 10 in homes with hard water. A maintenance bead here and there keeps the assembly watertight. Call (432) 233-0976 and we’ll tell you honestly whether a reseal is enough or the wall needs to come open.
A loose panel can sometimes be re-secured and resealed, but if the substrate behind it has swelled or shows mold, repair means pulling the panel to fix what’s underneath – and at that point you’re into a partial remodel, not a patch job. Graham Stein has walked enough of these in San Antonio to write a scope based on what the wall actually shows, not what would be convenient to promise. Call for a written estimate and we’ll tell you which category yours falls in.
A tub surround replacement with no hidden structural issues typically takes 3 to 5 working days. A full gut to the studs with new waterproofing and custom tile takes 2 to 3 weeks, depending on how much substrate needs to be rebuilt. We schedule around your family’s quiet hours where tool noise allows. Call (432) 233-0976 to get a written estimate with a date range before you sign anything.
We keep common Unilock trim profiles, corner pieces, adhesives, and sealants on hand for the panels we install; if your exact trim profile isn’t on the truck, we can source it within a week and verify it by photo before you pay for anything. We also stock compatible trim for KraftMaid, Cambria, and Silestone lines we install across San Antonio. Call (432) 233-0976 and we’ll confirm what you need.
Written by Graham Stein, Owner, Elmstead Remodeling San Antonio at Elmstead Remodeling San Antonio, serving San Antonio and nearby areas.
