Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
IKO Bathroom Remodeling: The Austin Owner’s Guide
If you’ve got an IKO product in your Austin bathroom and it’s failing, you’re likely looking at a full remodel rather than a simple part swap, because IKO doesn’t manufacture bathroom fixtures like vanities or shower valves. What IKO makes is roofing and waterproofing underlayment, and in Austin bathrooms we occasionally find IKO underlayment or waterproofing membrane that was installed as part of a previous remodel and has since failed behind tile or under flooring. A bathroom remodel in Austin dealing with failed waterproofing typically runs $9,000 – $28,000 depending on the size of the wet area, how far the water damage spread, and whether you’re replacing the shower, the floor, or the whole room. Most homeowners discover the problem the hard way: a soft spot in the floor near the tub, grout that stays dark no matter how much you scrub it, or a musty smell that won’t leave the room.
If your IKO waterproofing layer is the culprit, the fix isn’t a patch. Water that got behind tile has already done damage to the substrate, the framing, or both, and you need to pull the affected area apart to see how far it went. That’s the honest answer, and it’s the one we give before any work starts.
Which IKO Models This Applies To
IKO’s bathroom-relevant products fall into a few categories, and identifying what you have matters before we quote the job. In Austin remodels from the last 10 – 15 years, we most often see IKO’s AquaBarrier waterproofing membrane or one of IKO’s self-adhered underlayments installed behind shower surrounds or under bathroom floors. These aren’t sold as finished bathroom materials, they’re the moisture barrier underneath tile, stone, or vinyl.
The model number matters because each IKO membrane has different installation requirements and failure modes. AquaBarrier 500, for example, is a peel-and-stick membrane rated for intermittent wet areas, while AquaBarrier 700 handles continuous water exposure and is what should have been used in a shower pan. The gotcha we see in Austin: a contractor used the 500 in a walk-in shower because it was cheaper, and now the seams are delaminating from the steam and temperature swings that come with a Texas summer followed by a cold snap. To identify what you have, look for a printed roll label on any exposed membrane edge behind a removed escutcheon plate or inside an access panel. If it’s not visible, we identify it by thickness and backing material once the first tile is removed.
As for OEM versus aftermarket: IKO doesn’t sell replacement bathroom parts in the way Kohler or Moen sells cartridges. When an IKO membrane fails, the replacement is a new waterproofing system, and we typically spec Schluter Kerdi or Laticrete Hydro Ban as the aftermarket equivalent because they carry their own lifetime warranties and are easier to source in Austin. The short version: you’re not ordering a replacement part from IKO. You’re replacing the waterproofing system, and the brand choice becomes ours to recommend.
Styles & brands we work with
Signs Your IKO Bathroom Remodeling Is Failing
Here’s what we see in Austin homes when waterproofing has gone bad. If any of these sound familiar, don’t wait, because water moves fast through framing once it gets past the barrier.
– Grout lines that stay dark after cleaning. The grout is wicking moisture from behind the tile, which means the IKO membrane has a seam that opened up. Sealing the grout won’t fix it; the water is coming from the back side.
– A musty smell that doesn’t clear with venting. That’s mold or mildew feeding on soggy gypsum board or wood framing. By the time you smell it, the affected area is usually bigger than you’d guess.
– Tiles that flex or sound hollow when tapped. The mortar bed has lost its bond because the substrate underneath is swelling from moisture. In Austin’s humidity cycles, this gets worse every season.
– Soft spots in the floor near the tub or shower curb. Water has saturated the subfloor. The IKO underlayment wasn’t sealed correctly at the floor-to-wall transition, and every shower sends more water into the framing.
– Baseboards that are swollen, warped, or separating from the wall. Water is traveling along the bottom plate of the wall. This is a sign the leak is no longer contained anywhere near the shower.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
A bathroom remodel in Austin to correct failed IKO waterproofing runs $9,000 – $28,000. The spread is big because the job depends on scope:
– $9,000 – $12,000: A small full bathroom, roughly 5×7 or 5×8, where the shower surround and floor are gutted, new waterproofing goes in, and you get a new fiberglass or tile surround, new pan, and basic finishes.
– $13,000 – $18,000: A standard full bathroom with tile shower, new vanity, new flooring, and moderate plumbing adjustments. This is the most common range in Austin.
– $19,000 – $28,000: Larger master bathrooms, custom tile work, moving fixtures, or replacing a tub with a walk-in shower. If you want Cambria or Silestone countertops on the vanity, that pushes toward the upper end too.
Every quote includes demolition, haul-away, new waterproofing membrane, substrate repair, the finish materials we agreed on, and labor. We hand you a written price before we cut anything open, and that number does not change unless you change the scope. If we hit water damage behind the tile that extends further than we could see during the estimate, we stop, show you what we found, and give you a revised written price before we keep going. No surprises at the end.
DIY or Call Us?
You can safely check a few things yourself: inspect visible grout lines and caulk joints, note whether caulk is pulling away from the tub or shower base, and check the floor for soft spots by walking the perimeter slowly. What you should not do is start pulling tile to inspect the IKO membrane underneath unless you’re prepared for what comes next, because once the tile is off, you cannot just stick it back on.
The reason to call us has nothing to do with a sales pitch. Water damage behind tile spreads, and every week you wait moves the cost upward. We’ll open the wall or floor in the smallest area needed to see what’s happening, give you the written number, and go from there. If you’d rather talk it through first, call (325) 225-5429 and we’ll walk you through what to look at.
FAQs
How long should an IKO waterproofing membrane last in an Austin bathroom?
A properly installed IKO AquaBarrier membrane should last 20 years or more, but Austin’s humidity swings and hard water can shorten that to 10 – 15 years if the installation had any seam defects.
Can the IKO membrane be repaired instead of replacing the whole bathroom?
In rare cases, if the failure is caught early and the damage is limited to one seam, a localized repair is possible. By the time most Austin homeowners see symptoms, however, the framing behind the membrane has been wet long enough that a partial fix just moves the problem down the line.
How long does an IKO-related bathroom remodel take in Austin?
A small bathroom gut and rebuild runs 5 – 7 working days. A larger master bathroom with custom tile and structural work can run 2 – 3 weeks. We give you a written schedule with the written price, and we show up in the window we gave.
Do you stock IKO waterproofing products on the truck?
We don’t carry IKO membrane on the truck because we standardize on Schluter and Laticrete systems for our bathroom remodels, they perform better in Austin’s climate and carry their own warranties. If you specifically want IKO reinstalled, we can order it and price it into the written quote.
If you need a bathroom remodel in Austin and want a real number before any work starts, call (325) 225-5429 for a free estimate. We’ll send a background-checked tech in uniform, we’ll look at what you’ve got, and we’ll hand you a written price. 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.
