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CertainTeed Bathroom Remodeling: The Sherman Oaks Owner’s Guide
We stock and install CertainTeed-compatible bathroom systems in Sherman Oaks, with typical full remodels running $9,000-$28,000 installed and most material orders placed same-day once we verify your model. Homeowners usually discover an issue when grout lines crack behind the vanity, waterproof membrane bubbles appear near the tub surround, or the acrylic wall system starts separating at the corner seams after years of Valley heat cycling. In Sherman Oaks, we see this most often in homes built between 1985 and 2005 where the original CertainTeed wet-area components are reaching end of life but the substructure is still solid.
Which CertainTeed Models This Applies To
CertainTeed’s bathroom product line spans several generations, and matching the right component matters for waterproofing integrity. The Panorama series acrylic bath systems, common in 1990s Sherman Oaks tract homes, used a 1/4-inch wall panel with integrated corner posts that CertainTeed discontinued in 2008; replacement panels must be field-cut from modern 3/8-inch stock with adapter trim. The ReNew bath fitter line, sold 2002-2015, used a proprietary snap-lock flange system that differs from standard direct-to-stud mounting by 3/4 inch, a gap that causes leaks if an installer assumes universal fit.
To identify your model, check the embossed stamp on the drain flange or the paper label behind the access panel; the first two digits indicate the series year. We carry both OEM-equivalent CertainTeed panels from our distributor in Pacoima and quality aftermarket options from Swanstone and Transolid that meet the same ASTM E84 flame-spread rating. For Panorama systems, we typically recommend the thicker aftermarket panel; for ReNew systems, the OEM-compatible flange adapter is worth the extra cost to avoid a full surround tearout.
Signs Your CertainTeed Bathroom Remodeling Is Failing

- Soft drywall near the tub edge. CertainTeed’s older membrane systems relied on a solvent-based adhesive that degrades after 15-20 years in dry San Fernando Valley conditions; once the bond fails, water wicks into the greenboard behind. We find this most often on the plumbing wall in Sherman Oaks bathrooms where the original installer skimped on sealant at the tub lip.
- Cracked or lifting grout between wall panels. The thermal expansion gap in CertainTeed’s acrylic systems is 1/8 inch per 8-foot panel; when that gap fills with caulk or grout, summer Valley heat causes the panel to bow and the joint to fracture. The underlying panel is usually intact, but the cosmetic repair never lasts without addressing the expansion clearance.
- Musty odor from the vanity cabinet base. CertainTeed’s integrated vanity tops from the 2000s used a particleboard substrate with a sprayed gelcoat; the gelcoat cracks at the sink cutout, and the particleboard swells. In Sherman Oaks, we see this where hard water accelerates the gelcoat crazing around the drain assembly.
- Discolored or bubbling wall panels. This indicates membrane failure behind the finish layer, almost always at the inside corner where the tub meets the back wall. CertainTeed’s corner seam detail in pre-2010 systems was a pressure-sensitive tape that loses adhesion with age; the fix requires stripping to the studs and reinstalling a liquid-applied membrane.
- Loose or rocking toilet. Not a CertainTeed-specific part, but we mention it because the flange height in their ReNew systems sits 1/4 inch higher than standard, and an uninformed installer stacks wax rings to compensate. The extra compression distorts the wax seal within two years; we use a reinforced extender flange instead.
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AfterReplacement Cost & What’s Included
| Scope | Price Range | What’s Included |
|---|---|---|
| Panel replacement (wet walls only) | $3,500-$7,500 | Removal, membrane install, new panels, trim, sealant |
| Full surround with tub | $6,500-$14,000 | Demolition to studs, new subfloor if needed, membrane, panels, fixtures |
| Complete bathroom remodel | $9,000-$28,000 | Full gut, plumbing rough-in, electrical, tile or acrylic finish, vanity, fixtures |
What drives the range: substrate condition (we find moisture-damaged greenboard in about 40% of Sherman Oaks homes this age), whether the plumbing rough-in needs updating from galvanized to PEX, and finish selections. Our quote is a flat written price with line-item breakdown; under Clause 1 of the Haven Standard, that number does not change unless you sign a change order. The 365-Day Done Right Promise covers workmanship; manufacturer defects are handled per their warranty. We pull permits through the City of Los Angeles when plumbing or electrical is altered, and inspections are included in the price.
DIY or Call Us?

There’s a clear line here. An owner can safely verify the model stamp, photograph the failure, and check for active leaks by running water and watching the access panel for drips. What goes wrong past that point: the membrane system is the waterproofing layer, and a gap or thin spot means mold in the wall cavity within months. Solvent-based adhesives require respirator-rated ventilation; cutting acrylic panels without a fine-tooth blade with negative-hook geometry melts the edge and voids the panel warranty. We carry the right blades, the respirators, and the liquid membrane on every truck. If you’ve identified your CertainTeed model and want a written price before anyone touches the wall, call us at (213) 221-0788.
FAQs
Acrylic wall systems typically last 20-30 years in the San Fernando Valley’s dry climate, though the adhesive membrane begins degrading around year 15. The thermal cycling from 110°F summer days to 55°F winter mornings accelerates sealant fatigue at panel joints. Call (213) 221-0788 for an exact quote on replacement - estimates are free.
Surface-level fixes - recaulking, panel patching, grout touch-up - buy one to three years at most if the substrate and membrane are sound. Once the membrane has failed or the particleboard substrate has swelled, repair is false economy; moisture behind the finish layer continues spreading. Call (213) 221-0788 for an exact quote on replacement - estimates are free.
A wet-wall panel replacement takes two to three days; a full gut remodel with plumbing and electrical updates runs two to three weeks in Sherman Oaks, plus permit scheduling through LADBS. We provide a written timeline with the price, and we do not start demolition until both documents are signed. Call (213) 221-0788 for an exact quote - estimates are free.
We stock universal membrane, sealants, and common adapter flanges; CertainTeed-specific panels and trim are ordered same-day from our Pacoima distributor once we verify your model. For emergency water damage, we can install a temporary membrane seal within 24 hours while final materials arrive. Call (213) 221-0788 for an exact quote - estimates are free.
We also stock and install parts for KraftMaid, Cambria, and Silestone systems.
Rowan Construction Group Sherman Oaks is an independent service provider and is not affiliated with CertainTeed Corporation.
Measure twice, write it down, then build it. That’s how Grant Rowan has run every job since founding the company in 2007, and it’s why 4,000-plus projects have finished within a few percent of the written price the customer agreed to.
Written by Grant Rowan, Owner, Rowan Construction Group Sherman Oaks at Rowan Construction Group Sherman Oaks, serving Sherman Oaks and nearby areas.







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