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Tamko Bathroom Remodeling: The San Francisco Owner’s Guide
A full Tamko bathroom remodel in San Francisco runs $10,620 to $33,040 installed, and we stock the Tamko-compatible materials to start most jobs within a week of your written estimate. If you’re here, you likely have a Tamko product in your bathroom that’s reached the end of its service life, or you’re planning around a failure that’s already happening. Most San Francisco homeowners discover the problem the same way: cracked or lifting flooring around the shower pan, moisture wicking up drywall behind a vanity, or grout lines that won’t stay sealed no matter how many times they’re re-caulked. The Tamko name shows up most often in waterproofing membranes and shower pan liners, and when those fail, the fix is rarely a patch job. It’s a rebuild, done properly, with the right substrate and slope so water moves where it’s supposed to.
Which Tamko Products This Applies To
Tamko’s lineup in bathroom applications centers on waterproofing membranes, shower pan liners, and underlayment products. The most common we see in San Francisco homes are the Tamko AquaFlash membrane and Tamko’s PVC shower pan liners, usually 40-mil thickness. Here’s the compatibility detail most homeowners miss: Tamko membranes are not all interchangeable. AquaFlash is a peel-and-stick membrane meant for walls and transition areas, while the pan liner is a separate PVC sheet product. You cannot substitute one for the other, and doing so voids the manufacturer’s installation specs. The good news: if the manufacturer tag is faded or gone, a 40-mil thickness measurement and the presence of a gray PVC body is the quick field check. Aftermarket equivalents from Oatey or Pasco can work, but Curtis Lane prefers to match Tamko with Tamko when the original system is still partially intact. Mixing membrane brands on a shower pan creates seams that no amount of adhesive will fully reconcile. Bradford Remodeling Co San Francisco is an independent contractor, not a Tamko dealer or affiliate, but we install Tamko products regularly and know their installation specs.
Styles & brands we work with
Key Takeaways
- Full Tamko bathroom remodel in San Francisco: $10,620 to $33,040 installed.
- Tamko membranes are not interchangeable; matching the right product to the application matters.
- We write a fixed price before work starts, and every completed job carries the 365-Day Done Right Promise.
- A live person answers our phone 24/7; call (831) 610-5598 to schedule a free estimate.
Signs Your Tamko Bathroom Remodeling Is Failing
- Persistent musty odor with no visible leak. Tamko membranes fail at seams and corners first. Water gets behind the tile, saturates the substrate, and the smell is often the only early warning. Once you smell it, the framing underneath is already wet.
- Discoloration or staining at the base of the shower walls. This signals capillary action, water wicking upward from a compromised pan liner or membrane. Painting over it doesn’t stop the moisture; it just hides the symptom for a few months.
- Grout that cracks or falls out repeatedly. Movement behind the tile, from a waterlogged substrate, breaks grout lines. Re-grouting on a shifting substrate is wasted effort.
- Soft or spongy spots in the bathroom floor. Substrate rot. By the time the floor feels soft, the plywood or OSB below the tile has lost structural integrity and must be replaced, not reinforced.
- Water stains on the ceiling below the bathroom. If your bathroom sits above a living space, a failing shower pan liner will eventually telegraph straight through the ceiling joists. This is the most expensive version of the same problem.
See the difference
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After
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AfterReplacement Cost & What’s Included
In San Francisco, a bathroom remodel with Tamko waterproofing runs $10,620 to $33,040 installed. The spread is wide for a reason: a small bathroom with a standard tub surround sits at the lower end, while a primary bathroom with a walk-in shower, custom tile, and full floor replacement heads toward the top number. What’s included in our price: demolition of the failed surfaces, removal and disposal of the old substrate down to the studs where needed, new Tamko membrane or pan liner installation, new backer board, tile or surround installation, and plumbing rough-in adjustments. Every bid is a written, line-item price before any work starts. No numbers change at the door. And every completed Tamko bathroom remodel carries the 365-Day Done Right Promise: if anything fails within the first year, we come back and correct it at no charge.
DIY or Call Us?
You can check some things yourself: locate the Tamko product you have, measure the liner thickness, and look for visible seam gaps. That’s helpful information for the estimate call. But removing a failed shower pan liner is not a weekend project. The demo involves cutting into tile, exposing potentially mold-contaminated substrate, and re-sloping the pan so water drains correctly. Get the slope wrong and your new Tamko liner pools water in the corner and fails again within two years. In our experience in San Francisco, older homes in neighborhoods like the Outer Sunset have floor framing that’s shifted over decades, which means the pan often needs custom leveling before the membrane goes down. That’s not a YouTube fix. Call us at (831) 610-5598 and we’ll give you a straight number and a real scope.
Frequently Asked Questions
A properly installed Tamko PVC shower pan liner typically lasts 15 to 25 years in San Francisco, though fog-heavy neighborhoods like the Outer Sunset can shorten that lifespan if bathroom ventilation is poor. The liner itself is not the weak point; it’s the seams and corners where installation quality and substrate movement determine longevity. If your liner is over 15 years old and you’re seeing symptoms, it’s time to plan the replacement. Call (831) 610-5598 for a free estimate and an honest assessment.
In almost every case we see in San Francisco, a failed Tamko membrane cannot be repaired effectively once water has already penetrated the substrate, because the damage behind the membrane is already underway. Spot-patching a membrane only works on small tears caught immediately after installation, not on failures that have had months to soak the framing. A full replacement is the only fix that holds. We’ll give you a written price before any work starts, and our 365-Day Done Right Promise covers the finished job.
Most Tamko bathroom remodels in San Francisco take 2 to 3 weeks from demo to grout seal, depending on the size of the bathroom and whether custom tile is involved. That timeline includes waterproofing cure time, which cannot be rushed. We sequence every step in writing so you know exactly what happens each day. Call (831) 610-5598 and we’ll map out the schedule for your specific bathroom.
We keep Tamko AquaFlash membrane and 40-mil shower pan liner stock on hand for standard sizes, and we order specialty Tamko products direct when a job calls for them. If you have a specific Tamko product installed, we’ll match it or spec the correct equivalent. Along with Tamko, we stock materials from KraftMaid, Cambria, and Silestone for the rest of the bathroom. Curtis Lane checks every material spec against the job before it gets scheduled.
Straight number, real scope, no surprises at close-out. If your Tamko bathroom is failing, we’ll give you a written price to fix it right, and we’ll stand behind the work for a full year. Call (831) 610-5598 today, get a live person on the phone, and schedule your free estimate.
Written by Curtis Lane, Owner, Bradford Remodeling Co – San Francisco, CA at Bradford Remodeling Co San Francisco, serving San Francisco and nearby areas.
