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IKO Bathroom Remodeling: The Orange County Owner’s Guide
IKO bathroom remodeling in Orange County typically runs $9,000 – $28,000 installed, depending on the size of the bath, whether you’re moving plumbing, and which fixtures and finishes you choose. Here’s the reality most homeowners don’t hear until they’re already mid-project: IKO doesn’t make bathroom faucets, vanities, or shower valves. IKO is a roofing and waterproofing manufacturer, and in bathroom work their materials show up where water gets stopped – under tile, behind shower walls, and at critical transition points. If you’re searching for “IKO bathroom remodeling” because a contractor quoted IKO waterproofing in your shower or tub surround, you’re in the right place. We work with IKO waterproofing membranes regularly in Orange County bathroom remodels, and we can tell you exactly what that means for your project.
The typical symptom that brings an IKO-related bathroom issue to our attention is water – a musty smell from the wall cavity, grout that stays dark after it dries, or paint peeling at the baseboard on the other side of the shower wall. What failed isn’t the tile. It’s the waterproofing layer behind it, and that’s where the IKO product lives.
Which IKO Models This Applies To
In bathroom applications, the IKO products we encounter most often are IKO’s self-adhered waterproofing membranes and flashing tapes, used as the waterproof layer behind tile in showers, tub surrounds, and wet-room floors. The two you’re most likely to have in an Orange County home are IKO’s Armourgard family of ice-and-water membranes, sometimes specified by builders as a shower pan liner or wall waterproofing layer in older construction, and IKO’s Eave Guard or StormShield lines when a contractor used them as a vapor barrier around a bathtub or wet wall.
The compatibility gotcha with IKO membranes is this: they’re engineered for roofing temperature swings, not constant hot-water humidity. A membrane rated for a 40-year roof life under intermittent wetting can fail inside a shower in 10 to 15 years in Orange County because the sustained moisture and daily heat cycling break down the adhesive bond faster than the membrane itself. When we tear out a failed shower, we can usually identify the IKO product by the printing on its surface before we even peel it off the substrate. If you have the original building plans or the previous owner left product labels in the garage, that helps – but a field check during the demo will confirm it for certain.
For most Orange County bathroom remodels, we recommend true shower-system waterproofing – Schluter Kerdi, Wedi, or Laticrete – over a roofing-sourced membrane. IKO materials have their place, but your shower is a different environment than your roof deck, and the products should match the job. Penhallow Remodeling Orange County is an independent remodeling contractor, not affiliated with IKO, and we’ll recommend the right product for the application rather than defaulting to whatever the last guy used.
Styles & brands we work with
Signs Your IKO Bathroom Remodeling Is Failing
- Grout lines stay dark or develop white efflorescence after drying. Water is wicking behind the tile and mineral salts are leaching through. The IKO membrane’s adhesive bond has likely broken down in those areas, and water is now trapped against the backer board.
- Musty or earthy smell from the shower wall cavity. That’s mold feeding on damp drywall or wood framing. The membrane has been allowing moisture through long enough for biological growth to take hold, and it won’t reverse itself.
- Paint peeling or baseboard swelling on the wall opposite the shower. Water has passed through the wall cavity completely and is now attacking the drywall from the backside. This means the waterproofing has failed structurally, not just cosmetically.
- Loose or hollow-sounding tiles near the bottom of the shower. The thinset bond is failing because the substrate behind it is saturated. Tiles may still look fine from the front, but when tapped with a wooden dowel, they’ll sound dull instead of sharp.
- Water stains on the ceiling below a second-floor bathroom. If your Orange County home has the master bath above the living room or kitchen, this is the late-stage symptom. The IKO membrane has failed completely at one or more seams, and water is now finding its way straight down.
See the difference
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After
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AfterReplacement Cost & What’s Included
A full bathroom remodel in Orange County with proper waterproofing replacement runs $9,000 – $28,000 with Penhallow Remodeling. The spread depends on a few honest factors: the size of the bathroom, whether you’re replacing the tub and moving the drain, the tile you choose, and whether the framing behind the failed membrane needs repairs. Most jobs that start as “just fix the shower” become fuller remodels once we open the wall and show you what 10 years of slow moisture intrusion has done to the studs.
What you get for that number: demolition and disposal, framing repair where needed, new cement board substrate (the moisture-resistant layer behind your tile), a top-quality waterproofing system – not a roofing membrane repurposed for a shower – new tile, new fixtures, and a written guarantee. Kohler and Moen fixtures, Cambria or Silestone countertops where the vanity calls for them. The price is written before we start, and it doesn’t change when we find what’s behind the tile. We already know what’s behind the tile: it’s the reason you called.
DIY or Call Us?
This is the one part of the page where we have to be blunt: if your IKO membrane has failed inside a shower, this is not a weekend caulk-and-paint fix. The membrane is behind the tile. To reach it, the tile has to come off. To replace it properly, the substrate and often the framing have to be addressed, and the waterproofing has to be reinstalled as a continuous, sealed system with proper drainage. Water will find a pinhole. It always does.
What you can safely check yourself: whether the caulk at the tub-to-tile joint or the shower pan corners is intact, whether grout is visibly cracked, and whether you can feel moisture under baseboard trim with a bare hand. Replace loose caulk with a good silicone. But if you have two or more of the symptoms above, call (424) 541-1701. We’ll come out, diagnose what’s actually behind the wall, and give you a written number before we touch a single tile. Give you the number first, then pick up the tool.
FAQs
Inside a shower or tub surround, an IKO roofing membrane typically lasts 10 to 15 years before adhesive bond failure and seam separation allow water into the substrate. That’s a real-world lifespan in Orange County’s climate, where daily hot showers and year-round indoor humidity put continuous stress on a product designed for intermittent roof wetting. A purpose-built shower membrane can double or triple that lifespan. Call (424) 541-1701 for an exact assessment of your bathroom.
Not in a way we’d put our guarantee behind. Water migrates laterally once a waterproofing membrane fails, so the visible damage is almost never the full extent of the damage. A patch works when you can isolate a single seam, but when we’re seeing mold, damp framing, or loose tile, the membrane has already failed in multiple places. The honest fix is full removal and reinstallation. We’ll show you exactly what we’re seeing before you commit to anything.
A typical Orange County bathroom remodel with waterproofing replacement takes three to six weeks from demolition to final inspection. The framing repair and drying-out period accounts for the first week or two, and the waterproofing system needs cure time before tile goes up. We’ll give you a written schedule and a defined arrival window before we start, and we’ll keep the job site clean while we work.
We stock the right products for shower waterproofing on every job – Schluter Kerdi, Wedi, and Laticrete membranes, plus the sealants, corners, and drain assemblies that go with them. If your project genuinely calls for an IKO product in a non-shower application, like a laundry room or a wet bar backsplash area, we’ll source it from a local Orange County supplier. We also work with KraftMaid cabinets, Cambria and Silestone countertops, and Kohler and Moen fixtures on bathroom projects, so the whole remodel comes together under one warranty and one team. Call (424) 541-1701 to schedule your free estimate – we’ll have a real person answer.
Written by Trevor Nash, Owner, Penhallow Remodeling Orange County at Penhallow Remodeling Orange County, serving Orange County and nearby areas.
