IKO Bathroom Remodeling Nationwide

IKO Bathroom Remodeling: The Sunnyvale Owner’s Guide

IKO bathroom remodeling in Sunnyvale typically runs $9,000-$28,000 for a full replacement, with smaller refreshes starting around $5,000. We stock IKO-compatible waterproofing membranes, shower pan liners, and drainage assemblies on our Sunnyvale trucks, and we can usually schedule installation within a few business days. Most Sunnyvale homeowners first notice trouble when grout lines darken persistently, tile sounds hollow, or a musty smell lingers despite regular cleaning - signs that the IKO membrane or pan system beneath the finish layer has compromised.

Call (650) 405-3637

Which IKO Models This Applies To

IKO produces several bathroom-specific waterproofing systems, and matching the right components matters for warranty coverage and code compliance. The IKO AquaBarrier series - common in Sunnyvale homes built between 2005 and 2018 - uses a fleece-backed TPO membrane (thermoplastic polyolefin, a flexible sheet material) that bonds to the substrate with a special adhesive. Newer IKO ProShield installations rely on a self-adhering modified bitumen sheet with a polyethylene face. Check the paper label on any exposed membrane edge, or look for an embossed “IKO” logo and series code on the material itself.

We also see IKO components integrated into full shower systems installed by regional builders. If your shower was built by a tract developer in the Lakewood Village area or near Washington Park, there’s a fair chance the pan liner or wall membrane is IKO-sourced even if the tile or fiberglass surround carries another brand name. The critical measurement is membrane thickness: AquaBarrier runs 40 mil, while ProShield is 60 mil. Using the wrong replacement sheet creates a ridge at seams that telegraphs through new tile.

Rowan Construction Group Sunnyvale is an independent service provider with no affiliation to IKO. We source OEM IKO materials when available and specify equivalent-performing alternatives from brands like Silestone or Cambria-adjacent waterproofing lines when the original is back-ordered or discontinued.

Signs Your IKO Bathroom Remodeling Is Failing

• Persistent darkening of grout lines - Water is migrating through the tile layer and saturating the grout from behind, which means the IKO membrane beneath has torn or delaminated. In Sunnyvale’s dry summers, this moisture can evaporate fast enough to hide the problem until structural damage appears below.
• Hollow sound when tapping tile - The thinset bed has lost bond to the membrane, usually because water intrusion degraded the adhesive interface. Left alone, tiles crack or pop loose entirely.
• Musty odor that cleaning doesn’t resolve - Organic growth is feeding on moisture trapped between the finish layer and the IKO waterproofing. The smell means the system has been compromised long enough for microbial colonization.
• Soft or spongy floor near the shower pan - The IKO pan liner has perforated or the clamping ring drain has separated from the membrane. This is the point where subfloor damage accelerates.
• Water stains on the ceiling below - The leak has bypassed the IKO system entirely and reached the framing. In two-story Sunnyvale homes, this often first appears in the garage or a downstairs closet directly under the bath.

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Replacement Cost & What’s Included

What drives the range: finish material selection, whether the subfloor needs replacement, and permit complexity. Sunnyvale requires a plumbing permit for any shower pan or drain modification, plus a building permit for structural repairs. We pull both, schedule inspections, and pass before closing walls. Under Clause 1 of the Haven Standard, your written quote lists material costs, labor hours, and subcontractor scope separately. The 365-Day Done Right Promise covers the installation. No change proceeds without a signed change order, which is why our projects finish within a few percent of the agreed number.

DIY or Call Us?

There’s a safe middle ground here. A homeowner can verify the leak source with a simple flood test: plug the drain, fill the shower to an inch, mark the level, and wait an hour. If it drops, the IKO pan liner or drain connection is suspect. You can also photograph any visible membrane labels for our team to identify.

What you shouldn’t attempt: cutting into a shower surround to access the membrane, removing a toilet to inspect the flange without isolating the water supply properly, or applying new waterproofing over old without full substrate prep. The IKO system depends on continuous, unbroken coverage; a patch job traps moisture and accelerates rot. We’ve rebuilt three Sunnyvale bathrooms in the past two years where a well-intentioned DIY membrane repair failed within months.

Measure it twice, write it down, then build it. Call (650) 405-3637 and we’ll schedule a free estimate with a written line-item quote before any work starts.

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