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About RCC

RCC Waterproofing St. Catharines
Family Owned and Operated Since 1920

For over a century, RCC Waterproofing St. Catharines has been the trusted choice for homeowners and businesses seeking effective and reliable waterproofing solutions to their wet basement projects. With a strong reputation built on years of experience, we have established a proven track record in waterproofing, basement foundation repair, and addressing a wide range of issues, including damp basements, foundation cracks, and persistent leaks. Our unmatched expertise is complemented by our commitment to quality, offering a transferable lifetime warranty on our services for added peace of mind. When it comes to addressing wet basements, RCC stands out as the premier waterproofing contractor near you. Trust us to resolve your waterproofing issues effectively and efficiently, allowing you to enjoy a dry, secure space for years to come.

 

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RCC Waterproofing

Industry-leading Waterproofing Services,
Products and Warranty

Two construction workers installing a black dimpled waterproofing membrane on a foundation wall during a basement waterproofing project.
Basement Waterproofing

Let’s face it – leaky basement floods are the worst nightmare of every homeowner. The damp and dark reality of a wet basement that is flooded from the outside water leaking in, does not have to be your reality. Whether you had your basement flooded once upon a time – or you want to prevent that from happening and are just taking precautions, let waterproofing contractors like us introduce you to basement waterproofing in Southern Ontario. When you search basement waterproofing near me, RCC Waterproofing can help prevent basement leaks using tried and true waterproofing solutions.

$50 – $300+ per linear ft.

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A RCC Waterproofing contractor installing a protective membrane and a drainage pipe along a foundation wall for exterior basement waterproofing.
Exterior Waterproofing – External Solution

Exterior waterproofing (or sometimes known as external waterproofing) repairs your leaky basement from the outside of your home by exposing the foundation walls and applying the necessary waterproofing material to create a foundation waterproofing system that will redirect and disperse water away from your foundation walls and away from your home. This is one of the best waterproofing solutions used to fix basement leaks and the most common way waterproofing contractors do a basement foundation repair.

$50 – $300+ per linear ft.

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A close-up of a basement corner showing a dimpled waterproofing membrane installed along the foundation wall and a layer of gravel for drainage in a Toronto home.
Interior Basement Waterproofing – Internal Solution

Interior waterproofing (or sometimes known as internal waterproofing) repairs your basement leaks from the inside of your home and is the best solution for a damp or wet basement. When your basement becomes damp and moist, it is best to have an interior waterproofing done in your basement to prevent the growth of mold and mildew, which will create harmful smells and bacteria that affect your health. This is also one of the waterproofing solutions that will help take care of hydrostatic pressure that builds up and causes a wet basement.

$50 – $100 per linear ft.

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A completed interior basement waterproofing system in Toronto showing a sump pump installed in a basin, surrounded by gravel, with a dimpled membrane on the foundation wall.
Sump Pump Services

A sump pump is a water pump that is used to remove water that has been collected in a water-collecting sump basin (sump pit), found in the basement of your home. The sump pit also has a cover to prevent debris from going in and damaging the mechanism. Sump pumps often work together with an interior waterproofing system, and waterproofing companies will recommend having both inside your basement to have a full waterproofing system. Our sump pumps can be installed with backup battery that will make sure your sump pump is always running, even when the power in your house has been disrupted.

$500 – $3000

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A RCC Waterproofing expert using a jackhammer to break up a cracked basement floor in preparation for waterproofing or foundation repair.
Basement Lowering / Underpinning

If you are looking for a more livable space in your home, your basement is the first and most perfect place you should look at. But what if your basement is unfinished or needs to be lowered to provide a comfortable space for your family? This is where waterproofing contractors can come in offering the service basement lowering or underpinning as it is most commonly known, which is important for expanding your living space in your basement. This waterproofing service will give you higher ceilings and more living space for you and your family in your basement. As well, underpinning is a great way to increase the value of your property.

$300 – $500 per square ft.

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A waterproofing technician applying sealant to a crack in a concrete foundation wall as part of a basement waterproofing and foundation repair process.
Waterproofing Foundation Cracks

Foundation cracks are almost certain to result in a wet basement when left unattended. When basement leaks do happen, an epoxy crack injection can be one of the waterproofing solutions that waterproofing companies can use provided the conditions are right. This type of basement foundation repair uses a two part epoxy resin to seal your foundation wall from water leaks and further water damage. The epoxy is injected into the foundation cracks using special ports placed inside the crack. Then the crack is filled and the epoxy solution bonds the pieces of concrete foundation back together.

$50 – $650

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Newly applied black waterproofing membrane on the exterior foundation walls of a building under construction in Toronto, with a drainage system at the base.
Waterproofing Newer Homes – New Construction

It is important to have an exterior waterproofing done on your home and there is no better time to have it done than when the foundation walls are under construction. Waterproofing newer homes is a service that we offer to contractors and new construction companies and RCC will utilize the exterior waterproofing process on your job site to fully waterproof the foundation walls. Let RCC worry about the leaky basement foundation repair and rely on trusted waterproofing contractors like us to make sure the job is done right and with our lifetime warranty.

$2.75 – $4 per square ft.

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A clean crawl space in a Toronto home fully encapsulated with a white vapor barrier to prevent moisture and improve air quality.
Crawl Space Encapsulation

Crawlspace Encapsulation is a waterproofing service that we offer to customers who have a crawlspace inside their homes. It is possible to have a leaky basement if your crawlspace is not properly waterproofed and we offer waterproofing solutions that solve this very specific issue. While it is more common for older homes to have a crawl space, RCC has plenty of experience doing this type of project and we are a waterproofing contractor that will do a proper crawl space encapsulation and seal your home any water related issues that could happen.

$7 per square ft.

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A repaired corner of a concrete foundation in a Toronto home, showing new concrete work and preparation for subsequent basement waterproofing.
Foundation Structural Repair

A structural crack is where the foundation wall feels uneven or the width of the crack is about ¼” or wider. Some structural foundation cracks will require engineer specifications in order fo waterproofing companies to do a basement foundation repair. The obvious thing to look for is major cracks on the foundation wall. A horizontal crack means that there is a big problem. Though all cracks on the basement wall are generally bad, but horizontal cracks are serious. Horizontal cracks occur with the soil [mainly clay] constantly expanding and contracting putting the basement wall under a lot of pressure. Some walls especially block foundation walls tend to bow.

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A partially renovated basement in a Toronto home showing removed drywall, exposed insulation, and potential signs of past water damage on the foundation walls.
Basement Flooding & Water Damage

Water lines that have been damaged, hot water tanks that have broken, water overflows, and other types of basement flooding can cause significant damage that will only get worse if not addressed quickly. Our flood restoration experts will use sophisticated moisture metres to assess the water damage and dry wet areas with commercial-grade blowers and dehumidifiers to prevent further damage.

$1000 – $100,000 per size of job

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Black mold growth and water stains on a wall near a window in a Toronto home, indicating a moisture problem requiring basement waterproofing or leak repair.
Basement Mould Removal Services

Mould can grow as quickly as three days after a basement flood has caused water damage to your home, putting your family’s health at risk. RCC Flood Restoration provides all mould cleanup and removal services that will get rid of the mould, mildew and other bacteria. We can help you detect, locate, test, identify, remove, and treat mould growth in your home or place of business, preventing further damage to the affected areas.

$1000 – $100,000 per size of job

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A plumber in Toronto using a drain snake to clear a clogged floor drain in a flooded basement undergoing water damage restoration.
Basement Sewage Cleanup

When it comes to sewage damage, timing is everything. RCC Flood Restoration understands how serious sewage water damage can be, and we can clean up sewage water damage as well as disinfect and sterilise the affected areas quickly and effectively. This is critical for preventing the spread of harmful bacteria that can lead to serious health problems and diseases like Hepatitis A, Tetanus, and Giardia.

$1000 – $100,000 per size of job

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News

RCC Waterproofing in
the News

RCC has been featured in many news articles, interviews and television appearances over the years, across news outlets from Toronto, Mississauga, Hamilton and more.

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Why Choose Us

Why RCC Waterproofing is the
Leading Basement Waterproofing
Contractor In St. Catharines

St. Catharines Wet Basement Waterproofing.

Written estimate prior to basement waterproofing.

St. Catharines basement waterproofing reviews and testimonials available.

Guaranteed lowest price in St. Catharines for basement waterproofing and foundation repair!

Over 100,000 G.T.A and surrounding area foundations repaired and waterproofed.

St. Catharines Wet Basements made permanently dry, from the inside or outside (with or without digging!)

Waterproofing Transferable Lifetime Warranty Guarantee

Written guarantee upon basement waterproofing completion!

All basement waterproofing work guaranteed for 50 years!

St. Catharines' most referred basement waterproofing Contractor.

waterproofing faq’s

What Do You Need to Know About Interior Waterproofing in 2026?

In 2026, RCC Waterproofing offers an in-depth look at interior waterproofing, answering common questions homeowners have about this method. Host Anthony Parolin provides a site tour of an active interior waterproofing project and answers your questions.

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How Much Does Waterproofing Cost?

The cost of the waterproofing job depends on a number of factors. Foundation depth, waterproofing method, and size of the job all affect the cost. To learn more about how much it costs to waterproof your home.

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How do I clean-up a flood in the basement?

Flood cleanup is never fun – especially after you start tallying up the damages to your home and personal belongings. Even just an inch of water can cost you new carpet, wallboard, appliances, and furniture. If you are cleaning up after a more devastating storm with deeper flood water…

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How Long is the Duration of A Waterproofing Job?

Waterproofing jobs typically take anywhere between a day to a week for an average job. Waterproofing job durations will vary depending on a number of factors: Type of foundation (concrete or stone), The material that must…

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Where Can I Find References of RCC Waterproofing’s Work?

The best way to you can find out about the quality of our waterproofing services is by speaking with prior RCC customers. Often times our customers who do business with RCC will recommend our services, attest to our workmanship and let you know about our…

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What is RCC Waterproofing’s Warranty?

RCC Waterproofing is committed to our customers and the workmanship that we do on every job we go to. We offer a lifetime warranty guarantee because we are so confident in our external basement waterproofing system…

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Locations

RCC Waterproofing Jobsite
Locations

External Restoration and Waterproofing- Parker St, St. Catherines

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External Waterproofing at Tavistock Rd, St Catharines ON

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Internal Water Management and Sump Pump System at Chaplin Ave, St Catharines ON

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Internal Water Management and Sump Pump System at Glen Park Rd, St Catharines ON

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External Waterproofing at Lora St, St Catharines ON

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External Waterproofing at Arlington Ave, St Catharines ON

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Leaky Basement Repair for Home Foundation in St. Catharines ON

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Reviews

5
16 Reviews
All Reviews
16 Reviews
Yelp
24 Reviews
Opio
16 Reviews
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By Jan Foulon on Jul 13, 2025
Guest Review
Our experience with RCC was very good. Our waterproofing consultant Kurt Tamowski came to our house explained the issues we were having with our cold storage room and our window well, and the procedures needed to fix them. He was very knowledgeable and explained the procedure required to fix them. He gave us a quote and a time line for when it would be done. We were contacted on schedule and given a day for the work to be done. On that day Troy the team leader from St. Catherine showed up on time as did his crew from Toronto. They proceeded to complete the work exactly as Troy explained to us. Troy and his team worked very hard, were very professional and very friendly. They treated our home with respect and clean up was amazing. I would highly recommend RCC to all our friends. Thank-you Troy and Team From Heidelberg

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By Elizabeth Rodrigues on Jun 13, 2020
Verified by business
Its been a few weeks since our basement leak repair and no water in sight. So its safe to write this review about RCC Waterproofing and their services. They did a great job and we are happy with fix. No more wet basement.
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By RCC Waterproofing St Catharineson Aug 15, 2023
Thank you for choosing RCC Waterproofing, Elizabeth! We're thrilled to hear that our team did a great job fixing your basement leak. Your satisfaction is our top priority, and we're glad we could provide a solution to keep your basement dry.

By Sam Servello on May 08, 2020
Verified by email
RCC is one of the best waterproofing companies here in the St. Catharines area. They did our underpinning and then wrapped our basement in membrane to make sure it was all ready to be finished. The process took a while but that's the nature of basement lowering jobs and they did a quality job doing everything. Sam was great to correspond with during the whole process. Couldn't be happier with the job done here.
Employees Tagged in this Review
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By RCC Waterproofing St Catharineson Aug 15, 2023
Thank you for choosing RCC Waterproofing St Catharines, Lewis! We're thrilled to hear that Sam provided excellent correspondence throughout the process. We appreciate your patience with the basement lowering job, and we're glad you're happy with the quality of our work.

By Jeff RCC on Apr 14, 2020
Verified by email
Jeff and his crew did a fantastic with the basement foundation repair. Thanks to them this was taken care of. I'm happy that RCC could still operate during these strange and uncertain times and they really helped out my family. Job well done.
Employees Tagged in this Review
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By RCC Waterproofing St Catharineson Aug 15, 2023
Thank you, James, for your kind words! We're thrilled to hear that Jeff and our crew provided fantastic basement foundation repair. We're grateful for the opportunity to help your family during these uncertain times. Job well done indeed! - RCC Waterproofing St Catharines

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By Martha Wilson on Mar 12, 2020
Verified by business
Excellent service from the crews. This company took our wet basement issue and turned it around for us. They brought in a team to fix it and they did the job in two days. We don't have to worry about our foundation leaking anymore and it has a great warranty attached to the workmanship. Happy that we went with RCC Waterproofing.
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By RCC Waterproofing St Catharineson Aug 15, 2023
Thank you for choosing RCC Waterproofing, Martha! We're thrilled to hear that our crews provided excellent service and resolved your wet basement issue efficiently. Rest assured, your foundation is now leak-free with a great warranty. We appreciate your positive feedback!

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By Mark Simmons on Feb 04, 2020
Verified by business
We were looking for a waterproofing contractor to come and take care of this pesky reoccurring water leak when we stumbled on RCC on Google. We spoke with the rep in the area and let us know that they had solution to our problem and advised us on how to fix it. We decided to take the option to fix it on the inside and the team came shortly after to do the work. Our experience with the rep and crews were great and overall I felt good about the service we recieved.
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By RCC Waterproofing St Catharineson Aug 15, 2023
Thank you for choosing RCC Waterproofing St Catharines, Mark! We're thrilled to hear that our team provided you with great service and a solution to your water leak problem. We appreciate your positive feedback and look forward to assisting you in the future.

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By Gerald Holl on Jan 09, 2020
Verified by business
RCC works quick considering how much feet of foundation they had to do. They showed up to our place (on time might I add) and brought a sizable crew and over 2 days' time they did three sides of our house. That includes digging, doing all the waterproofing work and putting everything back in. These guys were professionals. RCC has a great group of workers and should be proud. Thanks, RCC crews for you hard work.
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By RCC Waterproofing St Catharineson Aug 15, 2023
Thank you, Gerald, for recognizing our hardworking crew at RCC Waterproofing St Catharines. We take pride in our professional team who efficiently completed the foundation work, waterproofing, and restoration in just two days. We appreciate your kind words and support.

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By Sarah Piesse on Nov 30, 2019
Verified by business
Water coming into your house is a real disaster. At first we thought it was a plumbing issue but found out that it was coming from the foundation wall. Not good at all. We then reached out to RCC Waterproofing who confirmed our suspicions. We liked the price and lifetime warranty so we got them to come back and fix the leak from the inside of the basement. Since their visit we haven't had to worry about water at all. They did a very good job. We commend RCC on their work and professionalism.
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By RCC Waterproofing St Catharineson Aug 15, 2023
Thank you for choosing RCC Waterproofing, Sarah. We're glad we could resolve the water issue from your foundation wall. Our team takes pride in providing quality work and professionalism. If you need any further assistance, don't hesitate to reach out.

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By Peter RCC on Oct 04, 2019
Verified by email
Peter and his crew were the best ever! They are better than any other crew in the area!
Employees Tagged in this Review
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By RCC Waterproofing St Catharineson Aug 15, 2023
Thank you, Greg! We're thrilled to hear that Peter and his crew provided exceptional service at RCC Waterproofing St Catharines.

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By Don on Aug 15, 2019
Verified by business
RCC great job. Our interior waterproofing and sump pump replacement is done and I can already notice a difference in air quality and moisture levels. You guys do great work so thank you for fixing our basement issues.
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By RCC Waterproofing St Catharineson Aug 15, 2023
Thank you, Don! We're thrilled to hear that our team at RCC Waterproofing St Catharines did a great job fixing your basement issues.

By Mike Martelli on Jul 23, 2019
Verified by email
Our leak is gone! Thanks Mike for consulting with us this whole time to fix our foundation problems. We really recommend RCC Waterproofing because their price was excellent, workmanship too! Thanks so much
Employees Tagged in this Review
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By RCC Waterproofing St Catharineson Aug 15, 2023
Thank you Caroline for choosing RCC Waterproofing St Catharines! We're thrilled to hear that Mike provided excellent consultation and resolved your foundation issues. We appreciate your recommendation and are here for any future needs.

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By Bill Hube on Jun 25, 2019
Verified by business
Grew up in the same house in Ridgeway for a long time and it's just leaked now. Its held up for all these years but the water has started pooling up in a spot near an old window well. Instead of fixing it ourselves we opted to go with RCC because they offered these services. Not only did we get them to fix the window well, we sprung to fix the spot where we got water enter the home. They sealed from the inside of the house. The price was really good so we couldn't say no to the option. I am satisfied with the job done here thanks guys
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By RCC Waterproofing St Catharineson Aug 15, 2023
Thank you for choosing RCC Waterproofing St Catharines, Bill! We're glad to hear that our team was able to fix the window well and seal the spot where water was entering your home. We strive to provide quality services at affordable prices. If you ever need assistance in the future, don't hesitate to reach out. Thanks again for your feedback!

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By Tim&Beverley on Jun 17, 2019
Verified by email
Thank you so much to RCC on behalf of the both of us. You guys worked really hard to waterproof our house going wall by wall, digging trench by trench and doing what needs to get done. Special thanks to Richard as well!
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By RCC Waterproofing St Catharineson Aug 15, 2023
Thank you, Tim & Beverley, for your kind words! We're thrilled to hear that RCC Waterproofing St Catharines and our team, especially Richard, worked hard to waterproof your house. We appreciate your trust in us!

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By Peggy Mullens on Jun 05, 2019
Verified by email
Had a huge foundation crack found by the RCC guys when they dug up the side of our house. Good thing these guys were equipped to repair it cause it was a doozey and was letting in a lot of water on rainy days. RCC was super easy to work with when it came to the whole process. They worked diligently to repair the exterior of our home and seal it. I can't recommend them enough if you need this type of service. Give them a call cause they do excellent work.
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By RCC Waterproofing St Catharineson Aug 15, 2023
Thank you for choosing RCC Waterproofing St Catharines, Peggy! We're glad our team was able to efficiently repair the foundation crack and prevent water damage. We appreciate your recommendation and look forward to serving you again in the future.

By Jeffery Martin on May 15, 2019
Verified by email
We had waterproofing done by RCC because we had seepage in the basement. Jeffery Martin came and checked our outside and saw the crack. He determined what had to be done, gave us an estimate on the spot and said that we'd be called within 2 to 3 weeks to set a date. The crew came 2 days early because of another cancellation. They said it was a 4 hour job and they did it in 4 hours! They came at 8:30am and left at 12:30pm. The crew had to dig by hand beside the house right to the footings, working really hard. As the work progressed, they would call me over and show me what was being done and before they filled in the hole they showed me the final seal or rubber membrane, and put stones in the bottom of the hole and then filled it all in. They cleaned everything up and it was pristine when they left. I was very thrilled with their professionalism and how hard they worked to get it done. Thanks RCC!
Employees Tagged in this Review
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By RCC Waterproofing St Catharineson Aug 15, 2023
Thank you for choosing RCC Waterproofing St Catharines, Jeanette! We're delighted to hear about your positive experience with our team. We appreciate your kind words about Jeffrey Martin and our hardworking crew. It was our pleasure to provide you with professional service. Thank you for your trust and support!

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By Tim T on Apr 26, 2019
Verified by email
Came in and completely redid the interior of my basement. Thanks to RCC for getting rid of the mildew and smell that kept building up downstairs. I really appreciate it guys!
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By RCC Waterproofing St Catharineson Aug 15, 2023
Thank you, Tim, for choosing RCC Waterproofing St Catharines! We're thrilled to hear that our team successfully eliminated the mildew and smell in your basement. Your satisfaction is our top priority. We appreciate your kind words and support!

By Bill0009 Coyote on Aug 15, 2018
Verified by business
Great work! RCC did a great job solving my basement leak issues by waterproofing the basement from inside. I haven't experienced any issues since they finished up and I know that if something does pop up the generous warranty will protect me. Thanks RCC
By RCC Waterproofing St Catharineson Aug 15, 2023
Thank you, Bill! We're thrilled to hear RCC Waterproofing St Catharines solved your basement leak issues.

By Gail on Oct 02, 2017
Verified by business
RCC was so great in getting my waterproofing issues taken care of. Richard came out and assessed my basement and said it was just a crack which is a fairly easy, half day job. The crew came out the following month after I agreed to the method Richard suggested, and dug down 7 feet as if it was a piece of cake! The membrane went up and the foundation looks spotless. They back filled the hole and left my property clean and tidy. What a great team, they were so kind and Richard really made me feel comfortable in my choice to work with you and your team.Thank you RCC
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By RCC Waterproofing St Catharineson Aug 15, 2023
Dear Gail, thank you for choosing RCC Waterproofing St Catharines. We're thrilled to hear that Richard and our team provided excellent service in resolving your waterproofing issues. We appreciate your kind words and look forward to serving you again in the future.

By Brian and Tracy Rook on May 26, 2017
Verified by business
The Crew arrived on time and the Sales Representative/Technicians was very informative. I'd recommend RCC to anyone.
By RCC Waterproofing St Catharineson Aug 15, 2023
Thank you, Brian and Tracy, for recommending RCC Waterproofing St Catharines! We're glad our crew arrived on time and that our Sales Representative/Technicians provided informative service. We appreciate your feedback!

By Joe on May 10, 2017
Verified by business
message is for richard and the hardworking crew who did the job at my home in st catherines i really appreciate the professionalism and the knowledge of the guys that came out. job wll done.
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By RCC Waterproofing St Catharineson Aug 15, 2023
Thank you, Joe, for recognizing Richard and our hardworking crew at RCC Waterproofing St Catharines. We're glad you appreciated their professionalism and knowledge. Your kind words mean a lot to us!

By Victor - Ancaster on Oct 21, 2016
Verified by business
We were so pleased with the work, Great Experience RCC! They respond to calls for service in timely manner, diagnosed our problem quickly and yes they show up when they say they will. We definitely recommend RCC WATERPROFING!
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By RCC Waterproofing St Catharineson Aug 15, 2023
Thank you for your kind words, Victor! We're thrilled to hear that you had a great experience with RCC Waterproofing St Catharines. Our team takes pride in responding promptly, diagnosing issues efficiently, and keeping our promises. We appreciate your recommendation!

By stephanie - st catherines Duck on Jun 15, 2016
Verified by business
job well done rcc crew, danny was a pleasure to deal with. Thank you
By RCC Waterproofing St Catharineson Aug 15, 2023
Thank you Stephanie for your kind words! We're glad to hear that Danny and our RCC crew provided excellent service.
RCC Waterproofing St Catharines 5 out of 5 based on 16 user reviews

A wet basement or foundation damage can compromise your St. Catharines home’s structural integrity and value. RCC Waterproofing offers professional solutions including basement waterproofing, crawl space waterproofing, sump pump installation, and foundation repair. Promotions like 5% off for qualifying groups make it easier to prevent water damage early.

With 0% financing plans and a Price Match Guarantee, homeowners receive premium waterproofing services affordably. Each project comes with a Transferable Lifetime Warranty, delivering long-term protection, moisture management, and peace of mind.

Seniors Citizen Discount

At RCC Waterproofing, seniors receive 5% off any waterproofing job to help protect the homes you’ve built. Professional waterproofing prevents basement leaks, mold, and costly damage, keeping your home safe and dry.

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Military Discount

RCC Waterproofing proudly offers 5% off to military members who need waterproofing. Our professional waterproofing keeps your foundation dry and protected from water damage, cracks, and flooding.

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