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Plant Prefab Bathroom Remodeling: The Long Beach Owner’s Guide
Plant Prefab bathroom remodeling in Long Beach typically runs $9,000-$28,000 for a full replacement, and we stock compatible fixtures, wet-wall panels, and waterproofing assemblies for same-day starts on most Plant Prefab series. Most owners first realize something’s wrong when the integrated wet-wall system shows seepage at the seam joints, or when the factory-installed vanity plumbing develops a slow leak behind the panel that discolors the drywall before anyone notices the source.
Which Plant Prefab Models This Applies To
Plant Prefab’s bathroom modules span the LivingHome series (including the C6, C6.3, and C6.4 models), the Cabana system, and the more recent Juniper and Cypress lines. Each uses a proprietary wet-wall panel system with pre-routed plumbing chases, meaning replacement parts must match the exact panel thickness and chase spacing or the new fixture won’t seat flush. The model badge is usually inside the vanity cabinet door or on the electrical panel cover; if that’s missing, measure the wet-wall panel thickness (typically 2-1/4″ on LivingHome C6, 2-1/2″ on Juniper) and note the plumbing rough-in spacing from centerline.
We source OEM Plant Prefab panels and fixtures through authorized West Coast distributors, but we’ve also vetted aftermarket wet-wall systems from Wedi and Schluter that meet the same 10-year waterproofing spec at lower cost. The catch: Plant Prefab’s LivingHome C6 series uses a non-standard 1-1/2″ drain offset that most aftermarket vanities don’t accommodate without a custom chase modification. We document that in the written quote so there’s no surprise once the panel comes off.
Signs Your Plant Prefab Bathroom Remodeling Is Failing

- Soft spots or discoloration at the wet-wall base. Plant Prefab’s factory membrane is continuous, but the seam tape at the pan-to-wall junction can degrade in Long Beach’s salt-air environment, letting moisture wick into the subfloor. We find this most often in ground-floor units near the beach.
- Vanity plumbing that drips behind the panel. The pre-installed PEX compression fittings in early LivingHome C6 models used a brass insert that corrodes in hard water; the leak shows up as a slow stain on the adjacent wall before any water reaches the floor.
- Shower door that won’t close square. This usually means the wet-wall panel has absorbed moisture and swelled, throwing the door jamb out of plumb. It’s a secondary symptom, but it tells us the primary waterproofing has failed somewhere above.
- Musty odor with no visible source. Plant Prefab’s tight construction traps humidity in the chase cavity; if the exhaust fan duct wasn’t sealed at the roof penetration, condensation runs back and pools behind the panel. We verify this with a borescope before we cut anything open.
- Tile or surface delamination from the panel face. The factory-applied finish on pre-2020 LivingHome modules used an adhesive that degrades above 140°F, which happens faster in Long Beach south-facing units with poor ventilation. The surface lifts before the waterproofing fails, so it’s an early warning.
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AfterReplacement Cost & What’s Included
Full Plant Prefab bathroom remodeling in Long Beach runs $9,000-$28,000 depending on whether we’re replacing the wet-wall panel assembly, the fixtures, or both. A panel-only replacement with aftermarket waterproofing runs toward the lower end; a full gut with OEM Plant Prefab components, custom tile, and relocated plumbing hits the upper range.
| Component | Price Range (Installed) |
|---|---|
| Wet-wall panel replacement (aftermarket) | $3,500-$7,500 |
| Wet-wall panel replacement (OEM Plant Prefab) | $5,500-$11,000 |
| Vanity, toilet, and fixture swap | $2,800-$6,500 |
| Full bathroom remodel (all components) | $9,000-$28,000 |
Every quote is a flat written price with line-item parts and labor before work starts. Under Clause 1 of the Haven Standard, that number doesn’t change unless you sign a change order. We warranty the waterproofing assembly for 5 years and the fixture installation for 2 years, both documented in writing.
DIY or Call Us?

There’s a safe middle ground here. An owner can verify the model badge, check the GFCI test button, and confirm the exhaust fan draws air at the vent hood. What you shouldn’t touch: the wet-wall panel itself. Plant Prefab’s system is a bonded assembly; cutting into it without knowing the chase routing risks hitting live PEX lines or compromising the waterproofing membrane in ways that aren’t visible until the mold shows up six months later.
We’ve also seen homeowners in Long Beach buy “compatible” vanities online that don’t match the 1-1/2″ drain offset, then call us to fix the leak after the fact. Measure twice, write it down, then build it. If you’re unsure on the spec, call (424) 567-7009 and we’ll confirm fitment before you spend anything.
FAQs
The factory wet-wall assembly is rated for 25 years, but in Long Beach’s coastal climate we see seam-tape degradation closer to 12-15 years on ground-floor units with poor drainage. Call (424) 567-7009 for an exact quote on replacement - estimates are free.
Surface delamination can sometimes be re-bonded if the membrane underneath tests intact, but seam-joint failures always require panel replacement because the chase cavity can’t be dried and resealed reliably. Call (424) 567-7009 for an exact quote - estimates are free.
A panel-only replacement takes 3-4 days including cure time for the new waterproofing; a full remodel runs 7-10 days depending on tile selection and whether we’re moving plumbing. Call (424) 567-7009 to schedule - estimates are free.
We stock compatible wet-wall panels, Schluter and Wedi waterproofing assemblies, and common fixture rough-in kits for same-day starts. OEM Plant Prefab panels ship from the Inland Empire in 2-3 business days. Call (424) 567-7009 to confirm availability for your model - estimates are free.
Rowan Construction Group Long Beach is an independent service provider and is not affiliated with Plant Prefab. We also stock and install parts for KraftMaid, Cambria, and Silestone product lines.
Ready to price your Plant Prefab bathroom remodel? Call (424) 567-7009 to schedule your free estimate. We’ll confirm your model, check our stock, and put the full scope and price in writing before anyone picks up a tool.
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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