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IKO Bathroom Remodeling: The Fresno Owner’s Guide
IKO bathroom remodeling in Fresno typically runs $9,000 to $28,000 installed, depending on whether we’re replacing a failing waterproofing system, rebuilding a shower pan, or doing a full tear-out to the studs. Most Fresno homeowners call us after noticing water staining on the ceiling below a second-floor bath, or tile grout that stays dark and damp in the corners days after a shower. We stock IKO-compatible waterproofing membranes, drain assemblies, and setting materials, and we can usually start diagnostics within a few days of your call.
Here’s the pattern we see across Fresno: a bathroom remodel was done five to ten years ago with an IKO shower system or waterproofing membrane, and now something underneath is failing. Maybe the weep holes in the drain are clogged with hard-water scale from Fresno’s municipal supply, which runs hard enough to shorten the life of most drainage assemblies. Or the membrane was never properly sealed at the curb, and water has been wicking into the subfloor in a neighborhood like Woodward Park or Bullard, where slab-on-grade construction means trapped moisture has nowhere to go but sideways into wall framing. The result is the same: a bathroom that looks fine from the surface but is quietly rotting underneath.
Key takeaways:
- Full IKO bathroom remodeling in Fresno: $9,000 to $28,000, written price before work starts
- IKO is a waterproofing and roofing manufacturer, and in bathrooms its membranes and shower systems compete with Schluter and Wedi products
- Fresno’s hard water and temperature swings make proper membrane sealing the difference between a 5-year and a 25-year bathroom
- We are an independent remodeler, not an IKO dealer or affiliate, and we match the right IKO or equivalent system to your specific failure
- Every job ends with a signed 365-Day Done Right Promise in your hand
Which IKO Models This Applies To
IKO manufactures roofing underlayment and waterproofing membranes more than it manufactures finished bathroom fixtures, so when a Fresno homeowner says they have an “IKO bathroom,” they usually mean one of three things: an IKO waterproofing membrane installed behind tile in a shower or wet area, an IKO shower pan liner, or an IKO vapor barrier installed under a bathroom floor that sits over a crawlspace or unheated garage. The product labels matter here because IKO’s membrane specs vary by series: some are rated for steam showers, some are not, and installing a non-steam-rated membrane in a Fresno bathroom that sees heavy steam from winter morning showers will lead to premature failure.
When we open up an IKO bathroom in Fresno, we check for the manufacturer’s stamp on the membrane backing, the thickness in mils, and whether the original installer used the IKO-recommended primer and seam tape or substituted a cheaper generic version. That substitution is the most common compatibility gotcha we see: a membrane that is sound in the field but failed at the corners because the installer used off-brand seam tape that delaminated after a few years of expansion and contraction. Fresno’s temperature swings, from 105-degree afternoons in July to near-freezing mornings in January, put real movement stress on seams. If the seam tape wasn’t spec-matched, the seams open.
For OEM versus aftermarket: IKO’s own seam tapes and primers are worth using because the manufacturer warranty only applies when the full IKO system is installed together. But there are quality aftermarket options for drain assemblies, corner dams, and mixing valves that perform as well or better, often at a lower installed cost. We’re transparent about which is which: we’ll show you the line-item difference and let you decide.
Styles & brands we work with
Signs Your IKO Bathroom Remodeling Is Failing
- Water staining on the ceiling below the bathroom. This is the number-one call we get from Fresno homeowners in Fig Garden and Old Fig. The stain means water has already passed through the membrane or failed at a seam and is now soaking the ceiling cavity below. By the time the stain is visible, the leak is not new.
- Grout that stays dark or feels damp days after a shower. Dark grout lines in the shower floor corners usually mean water is sitting in the setting bed under the tile, not draining. Hard-water minerals from Fresno’s supply can clog weep holes and hold water against the membrane.
- A musty smell that doesn’t clear with cleaning. That smell is biological growth in the substrate, and it means the waterproofing has already failed somewhere. In a slab-on-grade Fresno home, that moisture has likely been wicking into wall framing for months.
- Tile that sounds hollow when tapped. A hollow sound in a shower wall or floor means the thinset has lost bond, usually because the substrate got wet and the cementitious material broke down. We see this most often in bathrooms where the original installer skipped the corner reinforcing tape.
- Cracks at the shower curb or where the floor meets the wall. The curb is the most common failure point in any IKO or similar membrane system because it sees standing water, splashing, and movement. A hairline crack there is a warning sign, not a cosmetic issue.
See the difference
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After
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After
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AfterReplacement Cost & What’s Included
In Fresno, a full IKO bathroom remodel runs $9,000 to $28,000 installed. A smaller half-bath or guest bath with a standard tub surround and basic finishes lands in the $9,000 to $14,000 range. A master bath with a walk-in shower, custom tile package, new vanity, and upgraded fixtures typically runs $18,000 to $28,000. The range is driven by square footage, tile selection, whether we’re moving plumbing, and what we find behind the walls once demolition starts.
Every estimate we write for IKO bathroom remodeling in Fresno is a fixed line-item price, not a ballpark. You’ll see the waterproofing system, the setting materials, the tile labor, the plumbing rough-in if needed, the fixture installation, and the haul-away listed separately. That’s The Garrison Standard: a written price before any work starts, with no numbers that move at the door. If we open a wall and find rotted framing, we stop, document it, and give you a written change order before we touch it. You approve it on paper before we proceed.
The workmanship warranty is the 365-Day Done Right Promise: if any part of the remodel fails within one year, we return and correct it at no charge. That covers waterproofing, tile work, plumbing connections, and fixture installation. Materials carry their own manufacturer warranties on top of ours.
| Scope | Installed Price Range |
|---|---|
| Small bathroom / guest bath remodel | $5,000 – $12,000 |
| Full bathroom remodel | $9,000 – $28,000 |
| Walk-in shower installation with IKO membrane | $4,500 – $12,000 |
| Tub-to-shower conversion | $3,500 – $10,000 |
| Bathroom vanity installation | $800 – $3,000 |
DIY or Call Us?
There are things you can safely check yourself. You can inspect the visible grout lines with a flashlight, look for cracks at the shower curb, and feel for damp spots around the drain. You can check the ceiling below the bathroom for staining. These inspections don’t require opening anything up and won’t void any warranty.
What we don’t recommend is pulling tile or cutting into a shower floor on your own, and not just because you’ll void the IKO warranty. Cutting into a shower assembly without knowing where the membrane laps, where the drain body sits, and how the slope was built is how a small fix becomes a full gut. Waterproofing systems are only as good as the weakest seam, and a homeowner with a utility knife is usually the weakest seam. If you’re in Fresno and suspect your IKO bathroom is failing, the move is a professional inspection. Call us at (559) 785-2712 and we’ll schedule a diagnostic visit, walk you through what we find, and hand you a written price for exactly what it takes to fix it.
FAQs
A properly installed IKO membrane system should last 20 to 25 years in Fresno’s climate, but the real-world number we see is closer to 10 to 15 years when the original install cut corners on seam sealing or used mismatched setting materials. Hard water and temperature swings shorten the life of any shower assembly here. If you’d like us to inspect your bathroom for early failure signs, call (559) 785-2712 and we’ll schedule a diagnostic visit.
Sometimes, depending on where the failure is. A failed drain seal or a cracked curb corner can often be repaired without a full tear-out, but a membrane that has leaked into the wall cavity usually requires opening and rebuilding that section. We’ll tell you honestly which path applies and give you a written price before any work starts. Call (559) 785-2712 for a diagnostic visit and we’ll show you exactly what we found.
A full bathroom remodel with IKO waterproofing typically takes 2 to 4 weeks from demo to final walk-through, depending on tile package, plumbing changes, and inspection scheduling. Smaller repairs can be done in 2 to 3 days. We set a schedule in the written estimate and hold to it. Call (559) 785-2712 and we’ll give you a timeline based on your specific scope.
We keep IKO seam tape, primers, drain assemblies, and setting materials on hand for the most common Fresno failure modes, and we can source full membrane rolls within a few days if your project needs them. For fixtures and finishes, we work with a documented roster of brands including Kohler, Moen, KraftMaid, Cambria, and Silestone, and we’ll spec everything in writing. Call (559) 785-2712 to confirm what we have available for your specific job.
Written by Curtis Lane, Owner, Bradford Remodeling Co Fresno at Bradford Remodeling Co Fresno, serving Fresno and nearby areas.
