IKO Bathroom Remodeling Nationwide

IKO Bathroom Remodeling: The Boca Raton Owner’s Guide

IKO bathroom remodeling in Boca Raton typically runs $9,000-$28,000 for a full replacement, with most projects quoted within 24 hours and started within two weeks of signed approval. We stock IKO-compatible waterproofing membranes, underlayment, and flashing systems for the Cambridge, Dynasty, and Nordic series commonly used in South Florida bathroom applications. Most homeowners first notice trouble when water stains appear on ceiling drywall below the bathroom, or when tile grout lines start darkening within months of installation - signs that the membrane system beneath has compromised.

Call (754) 254-8065

Which IKO Models This Applies To

IKO’s Cambridge Architectural, Dynasty, and Nordic lines are the three series we encounter most often in Boca Raton bathroom remodeling, particularly in homes built between 1995 and 2015 where the original builder spec’d IKO for both roof and vertical waterproofing applications. The Cambridge line uses a fiberglass mat base with a heavier asphalt coating, which changes how the membrane flexes at shower pan corners compared to the organic-mat Dynasty series. Nordic, the newer synthetic line, requires a different primer for self-adhering applications.

To identify what you have, check the printed edge tape on any exposed membrane roll ends in your attic or crawl space - the series name and manufacturing date appear in 3/8-inch type. If the original installer used IKO’s Pro4 system, the underlayment will be labeled “StormShield” or “GoldShield” depending on the year. We carry both OEM IKO membranes and equivalent-grade alternatives from Polyglass and CertainTeed that meet the same ASTM D1970 standard for waterproofing, often at lower per-square-foot cost. The compatibility gotcha in Boca Raton’s humidity: IKO’s pre-2018 organic-mat products can delaminate if stored above 90°F before installation, which is common in unconditioned garage stockpiles here. We verify lot dates before any membrane goes down.

Signs Your IKO Bathroom Remodeling Is Failing

• Soft spots near the toilet flange. The wax ring compresses over time, but if the subfloor beneath feels spongy, IKO’s membrane may have pulled away from the flange stack during the original install, letting condensation from the PVC joint wick into OSB. We see this in Boca Raton’s older Spanish Mission homes where the flange was set too high to accommodate tile-over-tile.
• Grout cracking in a straight line across the shower floor. This usually traces to IKO’s membrane bridging at the curb-to-floor junction without proper pre-formed corners. The membrane creases instead of folding, then fatigues with daily thermal cycling from hot showers against air-conditioned walls.
• Musty odor that returns after cleaning. When IKO’s GoldShield underlayment degrades at fastener penetrations, vapor migrates through the stack rather than to the weep holes. The smell is mold metabolizing on the backside of cement board where you cannot reach it without removal.
• Tile popping loose in the first six inches of wall above the tub. IKO’s self-adhered membrane sometimes releases from greenboard or early-generation cement board if the substrate was dusty during application. The tile loses its backing support and tents outward.
• Water staining on ceiling drywall below, but the drain tests clear. This points to IKO’s flashing integration at the shower valve rough-in, where the membrane seal around the mixing valve escutcheon has relaxed. The leak only activates when pressure runs through the valve, so static flood tests miss it.

Before

After

Replacement Cost & What’s Included

The $9,000-$28,000 spread reflects three variables: whether we are removing existing tile and substrate down to studs, whether the IKO membrane failure has rotted structural subfloor requiring replacement, and whether plumbing rough-ins need relocation. Every quote from Rowan Construction Group Boca Raton is a flat written price with line-item breakdown - membrane, labor, substrate repair, tile setting, and permit fees listed separately. Under Clause 1 of The Haven Standard, that written price is delivered before any demolition begins. Our 365-Day Done Right Promise covers both workmanship and materials; if the membrane leaks because of our install, we remove and replace at our cost. No change order proceeds without your signature, which is why our projects finish within a few percent of the original number.

DIY or Call Us?

There is one thing a homeowner can safely check: the condition of visible caulk joints at the tub-to-tile and corner transitions. If the caulk is cracked or missing, re-caulking with a quality silicone buys time but does not fix membrane failure beneath.

Everything else - membrane removal, substrate assessment, and new IKO system installation - involves structural and waterproofing work that affects every finished surface above. In Florida’s humidity, an incomplete membrane seal traps vapor in the wall cavity, and the damage compounds invisibly for months. The real risk is not the work itself but the documentation: permit pull, flood test certification, and inspector sign-off required by Boca Raton building code for wet-area remodels. We pull permits as standard, include the documented photo record of every layer before it gets covered, and schedule inspections so you do not have to. Call (754) 254-8065 to schedule your free estimate.

FAQs