Walls Waterproofing in Phoenix, AZ
Protect your home in Phoenix, AZ from hidden moisture with wall waterproofing done by plumbers who understand where water comes from.
- Fast Moisture Source Diagnosis
- Shower Wall Membrane Systems
- Block and Stem Wall Sealing
- Licensed, Insured Technicians
Damp Walls or Leaking Showers? Get Them Sealed in Phoenix, AZ.
Call today and we will trace the moisture with meters and thermal imaging before recommending any waterproofing.
Walls Waterproofing in Phoenix, AZ That Starts With the Source
CVR Plumbing waterproofs interior and exterior walls by first finding where the moisture comes from. We check supply lines, shower valves, drain connections and irrigation before applying membranes such as Schluter Kerdi, RedGard or Hydro Ban, or exterior coatings on block and stem walls.
Our expertise includes:
- Shower wall and pan membrane waterproofing before tile installation
- Exterior block and stem wall sealing against irrigation runoff
- Below-grade foundation wall waterproofing for basements and crawlspaces

Additional Plumbing Maintenance Services in Phoenix, AZ
Our maintenance and specialty plumbing services in Phoenix, AZ catch small problems before they become emergencies.

Customers
Why Choose CVR Plumbing for Walls Waterproofing in Phoenix, AZ?
Waterproofing a wall without fixing the leak behind it only hides the problem. As plumbers, we find and repair the source before sealing anything.
- Source First, We repair the plumbing or drainage issue before applying any waterproofing.
- Proven Membranes, We install manufacturer-approved systems that are rated for wet areas.
- Mold Prevention, Drying and sealing walls promptly keeps mold from taking hold.
Citywide Coverage
Whether you have a single-story slab home or a property with a basement, we can protect your walls. We serve homeowners, landlords and businesses across Phoenix.
Experienced Team
Our team includes plumbers and waterproofing technicians who have rebuilt hundreds of leaking showers and damp walls. They know how water travels through block, stucco and drywall.
Safety-First Approach
We use proper ventilation and protective gear when applying coatings and sealants. Any moldy material we remove is bagged and disposed of carefully.
Trusted Certified Phoenix Plumbing Services Professionals
At CVR Plumbing, we take pride in providing certified plumbing services throughout Phoenix, AZ. Backed by recognized industry credentials, our experienced plumbers combine technical skill with genuine customer care. Whether it is repair, installation, or maintenance, we follow strict safety and quality standards to deliver long-lasting results you can trust.
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PHCC Plumbing Contractor Recognition
Better Business Bureau (BBB) Accreditation
Angi Certified Pro
ISO 9001 Quality Management CertificationReliable Walls Waterproofing Services in Phoenix, AZ
Shower Wall Waterproofing in Phoenix
Tile and grout are not waterproof on their own, so water reaches the backer board in every shower. If the walls were built without a proper membrane, moisture soaks into studs and drywall. We remove failing tile, install cement board or foam board and apply a membrane such as Schluter Kerdi, RedGard or Hydro Ban. Seams, corners and niches get extra reinforcement before new tile is set.

Shower Pan Leak Repair and Waterproofing in Phoenix, AZ
A cracked or poorly sloped shower pan often causes wet baseboards and stained ceilings below. We test the pan by plugging the drain and flooding it to confirm the leak. Then we rebuild the pan with correct pre-slope, a new liner or bonded membrane and a properly clamped drain. A second flood test confirms the pan is watertight before tile.
Plumbing Leak Behind Walls in Phoenix
A slow drip from a shower valve, supply stub or drain fitting can soak a wall for months before you notice. We locate the leak with moisture meters, thermal imaging and pressure tests. The damaged section of pipe or valve is replaced, and wet drywall is cut out and dried. Once the cavity is dry, we restore the wall and seal any wet-area surfaces.
Exterior Block Wall Waterproofing in Phoenix, AZ
Block and stem walls often show efflorescence, which is the white mineral crust left when water passes through masonry. In Arizona, irrigation and sprinklers aimed at the house are common culprits. We adjust or reroute irrigation, clean the wall and apply a breathable masonry sealer or elastomeric coating. Proper grading and drip line placement help keep the wall dry.
Below-Grade and Basement Wall Waterproofing in Phoenix
Basements are less common in Arizona, but homes in higher-elevation and hillside areas often have them. Monsoon rain and snowmelt can push water through foundation walls and cracks. We seal cracks with injection products, apply interior or exterior waterproofing and install drainage where needed. A sump pump may be added if groundwater collects.
Laundry Room and Utility Wall Waterproofing in Phoenix, AZ
Washing machine hoses, utility sinks and water heaters can all leak into nearby walls. We replace burst-prone rubber hoses with braided stainless hoses and install leak pans and shutoff valves. Walls around water heaters and laundry boxes can be sealed to resist water damage. These small upgrades prevent costly drywall repairs.
Commercial Wall Waterproofing in Phoenix
Restaurants, gyms, salons and offices often have restrooms, locker rooms and kitchens with constant water exposure. We waterproof commercial showers, mop sink walls and restroom wet walls with durable membranes. Work can be scheduled after hours to limit downtime. We also repair the plumbing behind those walls when leaks are found.

Waterproofing Costs vs. Repeat Water Damage in Phoenix, AZ
Waterproofing a shower or wall costs far less than repeated drywall, cabinet and flooring repairs. Ignoring moisture also invites mold, which can be expensive to remediate. A typical shower wall waterproofing project falls in the low thousands, while exterior block sealing varies with wall size. We give you a written quote so you can compare options clearly.
Walls Waterproofing Near Me in Phoenix, AZ
Our waterproofing crews are based locally, so we can inspect damp walls quickly and get repairs scheduled fast. We bring moisture meters and thermal cameras to every visit. That lets us give you answers the same day.
We understand the building styles and irrigation habits common around Phoenix. That local knowledge helps us spot the source of wall moisture quickly. It also means we can return easily for follow-up or warranty work.
CVR Plumbing at a Glance
- Licensed and insured plumbers serving Phoenix, AZ
- 24/7 emergency service with same-day scheduling
- Upfront, flat-rate pricing before work begins
- 4.8-star rated by 713+ Arizona customers
Phoenix Map
Phoenix Information
- Population
- 1,650,070
- Area codes
- 602/480/623
- Service area
- Phoenix and communities within 40 miles
- Nearby
- Glendale, Scottsdale, Tempe, Peoria
In Phoenix, AZ, irrigation runoff, monsoon storms and hard-working showers push moisture into block, stucco and drywall, so proper wall waterproofing protects your home's structure.
Expert Services
Trust our professionals for reliable CVR Plumbing solutions in Phoenix, AZ.
Our Specialized Plumbing Services in Phoenix, AZ
At CVR Plumbing, we provide a complete range of plumbing services across Phoenix, AZ. From leak detection to full system installations, our team ensures fast, precise, and affordable service for both residential and commercial properties. Explore our core services below:
How Our Walls Waterproofing Process Works in Phoenix, AZ
Our waterproofing process starts with finding the water and ends with a sealed, tested wall.
Request a Quote
Call (928) 470-9009 and describe the stains, damp spots or leaks you are seeing. We schedule an inspection and explain what to expect.
Find the Source
We use moisture meters, thermal imaging and leak tests to pinpoint where water enters. You get a written plan for repair and waterproofing.
Repair and Seal
We fix the leak, dry the area and apply the correct membrane or coating. Showers and pans are flood tested before finishing.
Frequently Asked Questions About Walls Waterproofing in Phoenix
Shower wall waterproofing with a membrane system typically runs $1,200 to $3,500 including demolition and backer board, not counting new tile. Exterior block wall sealing often costs $800 to $3,000 depending on size. Below-grade foundation waterproofing usually ranges from $2,500 to $8,000.
Shower remodels that change plumbing or drain locations often require a permit. Simple membrane replacement may not. We check local requirements and pull permits when needed.
Look for bubbling paint, soft drywall, stained baseboards and musty odors. White crust on block or stucco walls is another sign of moisture moving through. Loose tiles or cracked grout in a shower also suggest water is getting behind.
Sprinklers and drip lines aimed at the house are the most common cause. Monsoon storms and poor grading also send water toward walls. Masonry absorbs that water and leaves mineral deposits as it dries.
A shower wall waterproofing project usually takes two to four days, including drying time between coats. Exterior block sealing can often be completed in a day. Larger foundation jobs may take several days.
Yes. Sealing a wall with an active leak behind it traps water and causes more damage. We always repair the leak and dry the cavity first.
Waterproofing prevents the moisture mold needs to grow. Existing mold should be removed and the area dried before sealing. We remove affected materials when needed and recommend remediation for larger growth.
Yes. Our workmanship is warrantied, and many membrane systems carry their own manufacturer warranty when installed correctly. We explain the coverage in your written quote.
What People Are Saying About Our Plumbing Experts?

Daniel K.
A pipe burst at 11 pm and they actually answered. The plumber showed up within the hour, shut everything down, and had us back to normal the next morning. Could not ask for more.
Emergency Plumbing · Phoenix, AZ
Patricia H.
We had a slab leak that two other companies could not find. CVR Plumbing located it in under an hour, explained our options, and the price matched the quote to the dollar.
Slab Leak Repair · Glendale, AZ
Robert G.
The trenchless sewer replacement saved our front yard. They walked us through the camera inspection footage first so we knew exactly what we were paying for.
Sewer Line Replacement · Glendale, AZ
Mark T.
When our office needed drain cleaning, CVR Plumbing provided quick, reliable service. The plumber arrived on time and made sure every drain flowed perfectly before leaving. Very satisfied.
Drain Cleaning · Phoenix, AZ
Emily R.
I called CVR Plumbing for plumbing repair, and the technician was fast, polite, and thorough. They explained the problem clearly and fixed it the same day. I will definitely hire them again. Highly recommended!
Plumbing Repair · Avondale, AZ
Sofia M.
Two new toilets installed in one visit, no mess left behind, and the tech even adjusted a faucet he noticed was dripping. Fair pricing and really friendly.
Toilet Installation · Glendale, AZ













