Full Membrane Installation
We install a bonded waterproofing membrane or pan liner over cement backer board, with pre-formed corners and banding at every seam. No folded liner, no gaps at the curb, no shortcuts behind the tile.
Membrane, pan liner, and caulk work that keeps water where it belongs
Shower Waterproofing and Sealing pocatello ID Done Right the First Time
If your shower leaks, smells musty, or the grout keeps cracking, the problem is almost never the tile. Shower waterproofing and sealing pocatello ID is the layer behind the tile that actually stops water, and we install it to code on every job. We handle tile showers, pans, and full rebuilds across Bannock County, with same-day estimates and no surprises on the invoice.
Careful work. Honest options.
About this service
What Shower Waterproofing and Sealing pocatello ID Really Means
Shower waterproofing and sealing pocatello ID is the trade of building a continuous water barrier behind and beneath your shower finishes, then sealing every penetration, corner, and joint so water never reaches the framing. That means a sloped shower pan liner or bonded membrane, cement backer board, thinset mortar, and a waterproofing membrane rolled or sheeted over the walls. We set the drain with a drain wrench, pack the pan to fall toward it, and treat every curb, niche, and valve opening as a leak waiting to happen. Tile is the finish. The membrane is the work.
Most Pocatello homes were built with original tub surrounds or 1990s tile showers that were never waterproofed behind the wall. Add freeze-thaw swings that crack grout, hard Portneuf Valley water that eats caulk, and a shower used twice a day, and you get slow leaks into the subfloor. Homeowners searching for shower waterproofing near me pocatello usually find us after a ceiling stain or a soft spot near the drain. We stop the water at the source instead of caulking over a problem that will come back next winter.
- ✓ Stops Hidden Leaks
- ✓ Kills Mold Before It Starts
- ✓ Protects Your Tile Investment
- ✓ Adds Real Resale Value
What's included
What Our Shower Waterproofing Service Includes
Every waterproofing job we quote includes the steps that actually keep water out. If your scope needs something extra, like a new valve or a bench, we price it upfront so there is no surprise on the invoice.
24-Hour Flood Test
We plug the drain, fill the pan, and let it sit a full day before tile. If it holds, you get a photo. If it weeps, we fix it before the tile goes down. This is the single most important step in the job.
Drain and Valve Sealing
We set the shower drain with a drain wrench, tie it into the pan liner, and seal the valve opening with membrane and silicone caulk. Those two spots cause most of the leaks we get called to fix.
Grout and Silicone Caulk
We grout the field tile and use silicone caulk at every inside corner, the curb, and around the drain and valve trim. Grout in a corner will crack; silicone flexes with the house and stays sealed.
Photo Documentation
You get photos of the membrane and flood test before tile covers it up. That record matters at resale and if you ever need a warranty claim. We keep a copy on file for your job.
Cleanup and Haul-Away
We bag the demo debris, vacuum the work area, and haul everything off the same day. You are left with a watertight shower and a clean bathroom, not a pile of tile in the driveway.
How it works
How Our Waterproofing Process Works
We pull the drain strainer, check the pan for soft spots, and look behind the valve trim for moisture. A moisture meter tells us how far the water has traveled. This takes 30 to 45 minutes, and you get a written scope and price before we touch a tool. If the leak is from a faulty shower valve or a clogged shower drain, we tell you that instead of selling you a rebuild.
We remove tile, backer board, and the old pan down to the studs and subfloor. A tile saw and wet saw cut clean edges for reuse where possible. We check the framing for rot, replace any soft studs, and set a new level line. Most demo days run four to six hours, and we haul every bit of debris away the same day.
This is the part that matters. We install a sloped shower pan liner or a bonded sheet membrane over cement backer board, using a notched trowel to spread thinset evenly. Corners get pre-formed membrane pieces, not folded liner. We flood-test the pan for 24 hours before tile goes down, so any pinhole shows up while it is still cheap to fix.
We set tile with a grout float and thinset mortar, then grout and cure. Silicone caulk, not grout, goes at every inside corner, the curb, and around the valve and drain. We install the shower valve trim, grab bars, or a shower seat if your scope includes them. Tile and sealing typically take two to four days depending on size and pattern.
We run the shower for 20 minutes, check the ceiling below for any sign of moisture, and re-check the pan slope with a level. You get photos of the membrane before tile, a written warranty, and a maintenance sheet. If anything weeps, we fix it before we leave. Final walkthrough takes about 30 minutes.
STEP 01Inspect and Diagnose
We pull the drain strainer, check the pan for soft spots, and look behind the valve trim for moisture. A moisture meter tells us how far the water has traveled. This takes 30 to 45 minutes, and you get a written scope and price before we touch a tool. If the leak is from a faulty shower valve or a clogged shower drain, we tell you that instead of selling you a rebuild.
Tools & methods
Tools and Methods We Use
Notched trowel
Spreads thinset mortar at a consistent depth so the membrane bonds flat with no voids behind it. Voids are where leaks start.
Drain wrench
Sets and tightens the shower drain to the pan liner without cracking the flange. A loose drain is one of the most common leak points we find.
Grout float
Packs grout into the tile joints evenly. We use it after the membrane and flood test are done, never before.
Caulking gun
Applies silicone caulk at corners, the curb, and around trim. We use silicone, not grout, because it flexes with the house.
Wet saw and tile saw
Cuts ceramic tile, porcelain tile, and natural stone tile cleanly for niches, curbs, and drain openings without chipping the edges.
Moisture meter and level
Finds hidden moisture behind tile and confirms the pan slopes toward the drain at the right pitch before we close it up.
Real results
Before and after.
Shower Waterproofing and Sealing
Leaking Pan Rebuild in Highland
A 1990s tile shower with a cracked pan and a stain on the ceiling below. The drain flange gasket had failed, and water had been seeping into the subfloor for at least a year. The backer board was soft to the touch.
After: We removed the pan and lower wall tile, replaced the rotted subfloor section, installed a new sloped pan liner and drain, and waterproofed the walls with bonded membrane. The 24-hour flood test passed, and the new tile went down flat. No leak after two winters.
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Shower Waterproofing and Sealing
Musty Shower Fixed in Old Town
A 1920s home with an original tile shower that smelled musty no matter how often it was cleaned. There was no membrane behind the tile, and the backer board was damp from years of slow seepage. Grout was cracked at every corner.
After: We demoed to the studs, treated the surface mold, replaced two soft studs, and rebuilt with cement backer board and a bonded membrane. We sealed all corners with silicone and flood-tested the new pan. The smell was gone within a week.
Book this service → Shower Waterproofing and Sealing
Tub-to-Shower Conversion in Cedar Hills
A homeowner wanted the tub gone and a walk-in shower in its place. The old tub had been leaking at the overflow for years, and the floor framing near the drain was damp. There was no waterproofing under the tub surround.
After: We removed the tub, repaired the damp framing, built a sloped pan with a liner, and waterproofed the walls with membrane. We flood-tested for 24 hours, then set porcelain tile and installed a frameless glass door. The shower drains fast and the floor below stays dry.
Book this service → Problems we solve
Shower Problems We Fix Before They Spread
Most shower damage starts small and hides behind the tile. These are the problems Pocatello homeowners call us about most, and what happens if they wait.
Ask a pro →Shower leaks staining the ceiling below
We trace the leak with a moisture meter, open the pan or wall at the source, and rebuild the waterproofing. If the pan liner failed, we replace it and flood-test before tile. You get the ceiling stain fixed at the source, not painted over.
Failed caulking and grout at corners
We cut out the old caulk and grout, dry the joint, and reseal with silicone caulk at every change of plane. If the backer board behind it is wet, we tell you and price the repair honestly.
Cracked shower pan or uneven base
We remove the failed base, check the subfloor for rot, and install a new sloped pan with a proper liner and drain flange. We flood-test it for 24 hours before the tile goes back on.
Mold and mildew that keeps coming back
We find where the water is entering, fix the waterproofing, and check ventilation. If the shower needs a better fan or a sealed light, we handle that too so the walls actually dry between uses.
Transparent pricing
What Shower Waterproofing Costs in Pocatello
$250 - $2,800 depending on scope
Typical 2026 pricing in Pocatello runs $900 to $2,800 for a full shower waterproofing and sealing job, depending on size and whether tile comes out. A reseal with new caulk and grout is $250 to $500. A full membrane and pan rebuild on a standard 36x60 shower is $1,400 to $2,200. We quote upfront, and the price does not change unless you change the scope. If we find rot, we show you the photo and price the fix before we proceed.
Waterproofing is the cheapest part of a shower and the only part that prevents a $3,000 to $6,000 subfloor and ceiling repair. A $1,500 membrane job that lasts 20 years costs less than $80 a year.
•affects cost
A 36x60 alcove is the baseline. Larger walk-in showers, benches, niches, and multiple showerheads add membrane area and labor, which pushes the price up $300 to $800.
Get a quote ↗•affects cost
If we can waterproof over existing backer board, the job is faster. If tile and backer board have to come out, demo adds a day and $400 to $900 depending on the wall area.
Get a quote ↗•affects cost
A cracked pan or failed drain flange means a new liner and drain. That adds $300 to $600, and it is the most common reason a reseal turns into a rebuild.
Get a quote ↗•affects cost
Wet framing has to be replaced before waterproofing. We price it by the linear foot and show you photos. Most jobs need zero to two studs replaced.
Get a quote ↗ Proof you can check
Licensed, Insured, and Warranty-Backed
- State-Licensed Contractor · Idaho Division of Occupational and Professional Licenses
- Licensed Plumber (for drain and valve work) · Idaho Division of Occupational and Professional Licenses
- Manufacturer-Approved Membrane Installer · Schluter Systems and Laticrete
- General Liability and Workers Comp Coverage · Carried on every job
Most shower waterproofing and sealing jobs in Pocatello run $900 to $2,800 in 2026, depending on shower size and whether tile comes out. A simple reseal with new caulk and grout runs $250 to $500. A full membrane and pan rebuild on a 36x60 shower sits around $1,400 to $2,200. Add $300 to $600 if we find rot or need a new shower pan liner and drain.
Pocatello's freeze-thaw swings crack grout and caulk every winter, and once water gets behind the tile it soaks the backer board and subfloor. Mold and mildew follow within weeks. A waterproofed shower keeps that water out of your framing, which protects the ceiling below and keeps your tile from popping loose. It is the difference between a 20-year shower and a 5-year repair cycle.
Silicone caulk at corners and the curb lasts 3 to 5 years in a Pocatello shower before it needs replacing. The membrane behind the tile lasts the life of the shower, 20 years or more, if it was installed and flood-tested correctly. We recommend a caulk inspection every two years and a full reseal every four to five, which is a $250 to $450 job.
We do. ShowerPro Installation handles shower waterproofing and sealing across Pocatello and Bannock County, including 83201, 83204, and 83209. We are state-licensed, insured, and we flood-test every pan before tile. Call +1 986-336-9120 for a same-day estimate, or ask us for photos of recent membrane work in your neighborhood.
Ready when you are
Get Your Shower Waterproofing and Sealing pocatello ID Quote
One call gets you a same-day estimate, a written price, and a crew that flood-tests every pan before tile. We are licensed, insured, and we warranty our waterproofing in writing. Call +1 986-336-9120 and tell us what your shower is doing.
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Request an appointment
get your free shower estimate
Call us at +1 986-336-9120 or email info@showerproinstallation.com and we'll set up a free on-site measure. We answer the phone Monday through Friday, 8:00 to 18:00, and we return every message the same business day. For a leaking shower or a valve that's spraying, call any time - we run emergency call-outs 24/7.
Call anytime+19863369120Email the officeinfo@walkinshowerinstallationpocatelloid.com
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