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IKO Bathroom Remodeling: The Long Beach Owner’s Guide
IKO bathroom remodeling in Long Beach typically runs $9,000-$28,000 for a full renovation, with smaller baths starting around $5,000. We stock and install IKO-compatible waterproofing membranes, shower pans, and drainage systems, and we carry common IKO replacement components on our Long Beach trucks. Most IKO bathroom projects we quote in Long Beach are priced and scheduled within 48 hours of the first site visit.
Homeowners usually discover an IKO waterproofing failure when they notice water staining on the ceiling below the bathroom, or when the shower pan no longer drains properly and the tile grout starts crumbling at the edges. In Long Beach’s coastal climate, the salt air accelerates membrane degradation, so we see more perimeter failures here than inland crews do.
Which IKO Models This Applies To
IKO’s bathroom product line centers on their Proforcetile waterproofing membrane system and the IKO ShowerBase prefabricated pans, both common in Long Beach homes built between 2005 and 2018. The Proforcetile comes in two thicknesses: the standard 0.4 mm roll and the heavier 0.8 mm commercial grade. You can identify which you have by checking the printed spec line along the membrane edge, visible if you remove a floor register or access panel.
The IKO ShowerBase series includes the SB-36, SB-48, and SB-60 models, named by their rough opening dimensions in inches. A critical compatibility gotcha: the SB-48 and SB-60 use a center-drain flange with a 2-inch threaded hub, while the SB-36 uses a smaller 1.5-inch hub that is not interchangeable. We have seen Long Beach homeowners order the wrong drain assembly online and discover the mismatch only after demo day.
For OEM versus aftermarket, IKO membranes are proprietary in their fleece backing texture, which bonds to their specified thinset. Generic membranes will adhere initially but delaminate within 18-24 months in Long Beach’s humidity cycles. We source IKO-certified membrane from authorized West Coast distributors and keep the standard 0.4 mm in stock.
Signs Your IKO Bathroom Remodeling Is Failing

- Soft spots near the shower curb. The IKO membrane at the curb fold is the highest-stress point in the system. Once the fleece backing separates from the substrate, the plywood beneath sponges water. We find this in about 30 percent of Long Beach bathrooms over 12 years old, especially where the original installer used a single-piece curb instead of IKO’s recommended two-layer overlap.
- Tile cracks running parallel to the shower door track. This indicates the IKO ShowerBase pan has flexed because the mortar bed underneath was mixed too wet or too thin. The pan itself is sound, but the void beneath it transfers live load directly to the acrylic, which fatigues over time.
- Musty odor that returns after cleaning. When the IKO membrane’s welded seams fail, water reaches the wall cavity without showing surface staining. In Long Beach’s older stucco homes near Alamitos Beach, this trapped moisture also wicks into the exterior wall and shows up as efflorescence on the outside.
- Grout turning dark at the shower perimeter only. This is wicking, not surface mold. The IKO membrane’s top lap seal has lost adhesion at the wall-to-floor transition, and water is traveling behind the tile face. The grout is literally acting as a wick.
- Drain cover sitting proud of the tile surface. The IKO drain assembly includes a threaded adjustment ring that compresses the membrane clamp. If the ring backs off, the drain body drops and the membrane pulls free from the clamping flange. We stock the replacement rings and gaskets.
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AfterReplacement Cost & What’s Included
IKO bathroom remodeling in Long Beach breaks down as follows:
| Scope | Price Range |
|---|---|
| Small bathroom remodel (IKO membrane, new fixtures, retile) | $5,000-$12,000 |
| Full bathroom remodel (IKO system, custom shower, vanity, floor) | $9,000-$28,000 |
| Walk-in shower installation (IKO Proforcetile, glass enclosure) | $4,500-$12,000 |
| Tub-to-shower conversion with IKO pan | $3,500-$10,000 |
| Shower replacement only (membrane, pan, tile) | $3,000-$8,500 |
| Bathroom vanity installation | $800-$3,000 |
What drives the range: bathroom size, whether we are working over a slab or framed floor, tile material selection, and whether the IKO failure has caused structural damage requiring subfloor replacement. Every quote is a flat written price with line-item scope before work starts, under Clause 1 of the Haven Standard. Our 365-Day Done Right Promise covers the installation and materials. Call (424) 567-7009 for an exact quote - estimates are free.
DIY or Call Us?

An owner can safely check the IKO model number printed on the membrane edge or the ShowerBase label on the pan rim. You can also verify whether your drain hub is 1.5-inch or 2-inch with a simple tape measure across the inside diameter.
Where DIY goes wrong: IKO membrane installation requires a flood test - filling the shower pan to the curb height for 24 hours - and if the membrane fails the test, you are now committed to a full removal with no functional shower. The welding of IKO seams with their proprietary fleece-backed tape also demands consistent pressure and temperature; cold welds look fine and leak six months later. In Long Beach’s coastal environment, that delayed failure often means mold remediation that costs more than the original job.
We carry IKO membrane, drain assemblies, and welding equipment on our Long Beach trucks. Measure twice, write it down, then build it. Call (424) 567-7009 to schedule your free estimate.
FAQs
In Long Beach’s coastal climate, a properly installed IKO Proforcetile membrane lasts 15-20 years, though we see premature failure at 10-12 years when the original installer skipped the flood test or used non-specified thinset. Salt air accelerates the adhesive breakdown at seams and penetrations. Call (424) 567-7009 for an exact quote - estimates are free.
Spot repairs are possible for isolated punctures using IKO’s patch kit, but if the failure is at a seam, curb, or drain flange, the membrane has lost system integrity and we recommend full replacement. We have repaired IKO membranes in Long Beach that failed again within two years because the underlying adhesion was compromised. Call (424) 567-7009 for an exact quote - estimates are free.
A full IKO bathroom remodel in Long Beach takes 2-3 weeks: 3-4 days for demo and substrate prep, 2 days for membrane and pan installation plus the required 24-hour flood test, then tile, fixture, and trim. We do not rush the cure times; Clause 3 of the Haven Standard requires documentation of each stage before the next begins. Call (424) 567-7009 for an exact quote - estimates are free.
Yes. We carry IKO Proforcetile 0.4 mm membrane, drain flange assemblies in both 1.5-inch and 2-inch sizes, welding tape, and ShowerBase pans in SB-36 and SB-48. The SB-60 we order same-day from our West Coast distributor. We also stock KraftMaid, Cambria, and Silestone components for full remodels. Call (424) 567-7009 for an exact quote - estimates are free.
Rowan Construction Group Long Beach is an independent service provider and is not affiliated with IKO Industries Ltd.
Written by Grant Rowan, Owner, Rowan Construction Group Long Beach at Rowan Construction Group Long Beach, serving Long Beach and nearby areas.







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