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Tamko Bathroom Remodeling: The Huntington Beach Owner’s Guide
Rowan Construction Group Huntington Beach stocks and installs Tamko-compatible bathroom remodeling systems, with typical installed projects running $9,000-$28,000 depending on scope and material grade. We carry the full Tamko shower surround, wall panel, and accessory line on our trucks, and most Huntington Beach bathrooms we measure on Monday are demo-ready by Wednesday. Homeowners usually discover their Tamko system is failing when the fiberglass shower base cracks at the drain flange, the wall panels delaminate at the seams from years of steam exposure, or the color-matched silicone caulking pulls away from Pacific Coast Highway-area condos built during the 2004-2008 boom.
Which Tamko Models This Applies To
Tamko bathroom systems break into three product families, and matching the right one matters because the mounting hardware and panel thickness changed between generations. The Tamko Shower Systems line (2002-2015) used a 3/16-inch fiberglass-reinforced panel with a proprietary interlock tongue that Tamko discontinued in 2016; if your label shows a part number starting with “SS-” and the wall panels measure 36mm at the seam, you’re in this group. The Tamko Bath & Shower line (2016-2022) switched to a 1/4-inch polymer composite with a universal spline joint, and the current Tamko ProSeries (2023-present) uses a 5/16-inch solid surface with integrated waterproofing membrane.
We source OEM Tamko panels for ProSeries and Bath & Shower jobs; for the older Shower Systems line, we fabricate compatible panels from Swanstone and Maax equivalents that match the interlock geometry without the discontinued hardware. The decision point is always the substrate condition behind the panels. If the cement board or vapor barrier behind your 2008-era SS- series is compromised, swapping in OEM-style panels is throwing good material at bad backing. We check that with a borescope at the estimate, and we put what we find in writing before you decide.
Rowan Construction Group Huntington Beach is an independent service provider, not affiliated with Tamko.
Signs Your Tamko Bathroom Remodeling Is Failing

- Cracked shower base or tub surround. The fiberglass gel coat develops stress fractures at the drain flange or corner radii, usually from flex in the subfloor or thermal expansion against a poorly set mortar bed. In Huntington Beach, we see this accelerated in second-story bathrooms where the original builder skimped on joist blocking.
- Delaminated wall panels at vertical seams. Moisture wicks behind the panel through failed silicone, separating the fiberglass skin from the core. The panel feels spongy when pressed, and you’ll often spot a brown stain at the seam’s lower edge before you feel the give.
- Soft or discolored drywall outside the wet zone. This means water has migrated past the Tamko system’s vapor barrier, usually at a poorly flashed valve escutcheon or a missing seam gasket. The fix isn’t a new panel; it’s finding the path the water took and rebuilding the wall behind it.
- Mold or persistent mildew on caulk lines. Surface cleaning fixes this for a week, then it returns. The real problem is capillary action drawing shower water behind the caulk, which happens when the original installer used generic silicone instead of Tamko’s color-matched, anti-microbial formulation.
- Loose grab bars, soap dishes, or corner shelves. Tamko’s accessory mounting clips embed in the panel core; if the core has absorbed moisture or the installer missed the structural blocking, the clip spins freely and the fixture drags the panel surface with it.
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AfterReplacement Cost & What’s Included
Bathroom remodeling with Tamko-compatible systems in Huntington Beach runs $9,000-$28,000 installed, with most full-gut jobs we quote landing in the $14,000-$22,000 range. The low end covers a direct swap of shower surround and base in a 5×8 footprint with existing plumbing in place; the high end includes moving the drain, expanding the footprint, or upgrading to the ProSeries solid surface with integrated bench and niche.
Every quote we write breaks into three line items: demolition and haul-away, rough carpentry and plumbing modifications, and finish materials plus installation. The materials line specifies Tamko SKU numbers or the equivalent aftermarket match, so you know exactly what you’re buying. Under Clause 1 of the Haven Standard, that written price is fixed; if we find rot in the subfloor during demo, we stop work, photograph it, and write a change order with a new line-item price before proceeding. No signed change order, no additional work. That’s the discipline that has kept our projects within a few percent of the agreed number across 4,000-plus jobs since 2007.
The 365-Day Done Right Promise covers all Tamko bathroom work: if a seam opens, a fixture loosens, or a panel delaminates within a year, we make it right at no charge.
DIY or Call Us?

There’s a clear line between what a Huntington Beach homeowner can safely assess and where the job turns into a permit-and-plumbing affair. You can check your Tamko model number (inside the access panel or on a sticker at the base edge), measure your shower footprint, and photograph any cracks or stains for reference. That’s useful information, and it speeds up our estimate.
What you shouldn’t do: cut into a load-bearing wall without verifying what’s behind it, attempt to reset a shower drain without re-pitching the P-trap to code, or install a vapor barrier without an ICC-ES evaluation report for your specific assembly. The 2019 California Plumbing Code requires a pan liner test on any shower receptor modification, and Huntington Beach inspectors flag improper weep hole protection at the curb. We’ve pulled permits and passed inspections on hundreds of bathrooms here; the photo record we deliver at completion includes the inspector’s sign-off sheet. Call (657) 288-3368 to schedule your free estimate, and we’ll show you exactly what the job entails before anyone picks up a pry bar.
FAQs
A properly installed Tamko system lasts 15-25 years in Huntington Beach’s marine climate, though the salt air accelerates metal component corrosion by roughly 20% compared to inland Orange County. Call (657) 288-3368 for an exact quote on replacement - estimates are free.
Surface gel coat cracks can be filled and refinished for $800-$1,500, but delaminated panels or compromised cores require full replacement because the structural bond is broken and moisture has penetrated. Call (657) 288-3368 for an exact quote - estimates are free.
Most complete replacements take 5-8 working days from demolition to final inspection, assuming no plumbing relocation or structural repair; we schedule Huntington Beach permit inspections in advance to avoid downtime. Call (657) 288-3368 to schedule your free estimate.
We stock Tamko ProSeries and Bath & Shower panels, bases, and hardware in our Huntington Beach warehouse; discontinued Shower Systems components are fabricated to match within 48 hours from our Swanstone and Maax suppliers. Call (657) 288-3368 for an exact quote - estimates are free.
We also stock and install parts for KraftMaid, Cambria, and Silestone systems.
Written by Grant Rowan, Owner, Rowan Construction Group Huntington Beach at Rowan Construction Group Huntington Beach, serving Huntington Beach and nearby areas.







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