Best Basement Waterproofing Contractor & Foundation Leak Repair Specialists Family Owned Waterproofing Contractor from 1920 to 2026
Wet basement? Since 1920, RCC Waterproofing Toronto has been the most trusted waterproofing company near you with over 100,000+ waterproofing projects completed and 10,000+ positive reviews. With over 100+ years in the waterproofing industry, our knowledge and skills in basement foundation repair and water leak repair are unmatched. What sets us apart is our commitment to quality as all our waterproofing services are backed by a transferable lifetime warranty. If you’re struggling with a wet basement waterproofing project, RCC is the ideal waterproofing company in the Toronto area. As we enter 2026, we continue to be recognized as the top choice for waterproofing solutions, offering the most competitive pricing in the market with a price match guarantee and in-house 0% financing for 24 months. Trust RCC Waterproofing Toronto to deliver reliable, high-quality services that keep your basement dry and secure for years to come.
“So I just want to give a shout out to RCC Waterproofing. The guys came by a waterproofed one side of my house. I had a terrible leak there in the winter time. The guys were amazing! The crew was incredible. They worked so fast and professional. Down to earth guys. I’m so happy and would definitely recommend this waterproofing company.”
"We had a wet basement and Darwin and his waterproofing crew came to help us out!"
We had a wet basement and Darwin and his waterproofing crew came to help us out. Jamie came and he was very good recommending what needs to be done. Darwin’s crew did a wonderful job as you can see back here. We are very happy that they came and they came even with the low temperature that I didn’t think they were going to come. The temperature was fairly low but the crew worked very hard. I highly recommend RCC and the crew to anybody!
Just to see these guys and how they work is amazing!"
Hi guys just wanted to say RCC, Peter and the crew, the job these guys do is second to none. I know a little bit about construction and waterproofing and just to see these guys and how they work is amazing. First of all, the cleanliness is excellent. These guys do a good job making sure everything is tarped down and none of the dirt goes on top of anything that is going to leave stains. Number 2, the guys are all amazing, they got a good work ethic, they are really happy and you can really see that they love what they do. That goes a long way. Also, the materials that these guys use are second to none. All top-quality material and all up to date and they go above and beyond the minimum standard. They go above and beyond what they are supposed to do. Everything was cleaned properly, they used hydraulic cement to fill any cracks the materials that they used are all top-quality stuff and I felt compelled to do this video review for Pete and his crew because I feel like these guys are the best in the business. So if you ever need any waterproofing done, use these guys. Thanks.
"You would hardly even know that Andy and his crew were here! They left the place immaculate!"
I would just like to say thank you very much to RCC Waterproofing for a job well done. From start to finish, from the first time I made the call, to dealing with Jamie for the quote and working with Andy’s crew for the exterior waterproofing, I’ve only had positive experiences and I can’t recommend RCC enough. You would hardly even know that Andy and his crew were here! They left the place immaculate. Thanks again RCC Waterproofing
"Fixed very efficiently. Thank you Nader!"
“RCC said that if there was a problem with the work done they would come and fix it. Well it happened but Nader came back and it was fixed very efficiently. Thank you Nader!”
"We are thrilled that we chose RCC Waterproofing!"
“We are just finishing up the waterproofing project with RCC Waterproofing. I want to thank Den, Darwin and the waterproofing team for doing an amazing job both inside and outside the house. The crew came early this morning and finished the whole waterproofing job in one day. They did an amazing job getting it all done and putting the plants back in place. They were super cooperative and answering any questions during the day. So thank you RCC waterproofing for an awesome job and we are thrilled that we chose them.”
"Now that they are finished, you wouldn't even know they were here"
“The RCC Waterproofing company just finished my house and did exterior waterproofing down the whole side. Put in two brand new window wells, fixed the weeping tile and did a beautiful job. At one point, the dirt that was piled 4 feet high. Now that they are finished, you wouldn’t even know they were here. They washed the side of the house, they washed the sidewalk, they swept the neighbour’s side down. I’d recommend RCC Waterproofing to anybody in Toronto!”
"Thank you Jamie & Darwin's Crew!"
“Thank you very much to Jamie and especially to Darwin and his crew from RCC Waterproofing. They came early and on time. Finished the waterproofing job very quickly and it was efficiently done. Good job RCC Waterproofing and thank you very much!”
"The crew from RCC took care of our property here. Fantastic job!"
“Peter and crew from RCC took care of our property here. Fantastic job! Yesterday and today, they did a massive job and it was done in less than two days. Thank you so much. Highly recommended. Peter and crew from RCC Waterproofing. Thank you!”
"They are very good people to deal with. I would recommend giving RCC waterproofing a try!"
Hi there, I am another one of the customers from RCC Waterproofing. I had Darwin and his crew here. Mauro is the sales rep and gentleman who set this up. All of those guys were fantastic when dealing with them. They did a great job that is nice and clean. Very efficient and very happy with the work. They are very good people to deal with. I would recommend giving RCC waterproofing a try.
"We just had RCC in with Canroy and the crew. They did a good job!"
We just had RCC in with Canroy and the crew. They did a good job, all cleaned up. One day and not a problem. Highly recommended.
"RCC did about 130ft of internal waterproofing with a sump pump!"
RCC did about 130ft of internal waterproofing with a sump pump. I had phoned 4 other contractors and they got back to me and told me what they were doing but they didn’t explain it very well, not like DJ from RCC Waterproofing did. Everything that RCC did down here in the basement was so efficient. Very efficient! Everything that they did they explained it very well, and what I did learn was about hydrostatic pressure. I’m mechanically inclined but I never knew about the amount of hydraulic pressure that the water creates. But I’m glad the job is done, it’s beyond professional. DJ and Moe are very professional, they cleaned up afterward and left very minimal dust and debris. I am just beyond impressed. If I had another situation happen in another house I own, RCC would be the first one I call. Thank you.
"The company did a good job. They dug everything with excavators efficiently."
The company did a good job. They dug everything with excavators efficiently. There is no more water. Strong rains and still no more water in my basement so everything is okay. You guys are good.
"Thanks RCC, you did a very good job. No leaks so far!"
Thanks RCC, you did a very good job. No leaks so far. Thanks again. We will call you in the spring if anything happens but hopefully it will be fine.
"They were very respectful to the surroundings of my property and I'm really happy, thank you!"
Noel and his crew did a great job. They were fast and efficient and the job was done very quickly. They were very respectful to the surroundings of my property and I’m really happy, thank you. I recommend RCC.
"I appreciate RCC Waterproofing who helped me out in a bind."
I appreciate RCC Waterproofing who helped me out in a bind. I just bought this place and had a small issue. They got it done!
"I'm happy and the job was shorter than I expected. I expected two days but it took one!"
Just to let you know, RCC Waterproofing did a great job. I’m happy and the job was shorter than I expected. I expected two days but it took one. This was the best team I’ve ever seen work. They work together and the work looks great. Awesome and Thank you!
"They came back and made sure that everything was running smoothly!"
I got some service done by RCC. It was real professional and I really appreciate the above and beyond service that I got. They came back and made sure that everything was running smoothly and if I had any issue to let me know that I can contact them at anytime. I recommend them going forward. Cheers
"I’d like to thank Canroy and the crew for an amazing job!"
I’d like to thank Canroy and the crew for an amazing job. They did a great job waterproofing, the service was excellent and definitely, if I have any problems, ill call them again. Thank you.
"RCC just recently came to our house and did our internal drainage system and its great."
RCC just recently came to our house and did our internal drainage system and its great. Not only did it make my house waterproof and safe but it also made it safe for my children and myself.
The best waterproofing team in the business
Over 1000 years of combined team experience makes a difference
As a family owned & operated business, each member of our staff is regarded as a member of the RCC family. Our close knit team includes a wealth of experience for both sales and operational assistance. We pride ourselves with the experience and knowledge of our team. No other waterproofing company can offer the same.
Industry-leading Basement Waterproofing Services, Waterproofing Products and Lifetime Waterproofing Warranty
RCC provides a variety of Industry-Leading Waterproofing Solutions tailored for the foundation repair needed for your home. RCC’s team has experience repairing every type of foundation walls, whether they are older homes or new construction. We use the best waterproofing products for the job and back your basement waterproofing Toronto jobs with a lifetime warranty guarantee. Our Toronto waterproofing costs are competitive with the rest of the market.
Ontario's diverse climate can challenge even the sturdiest foundations. Our expert waterproofing teams use cutting-edge techniques to combat wet basements throughout the province. We offer tried and true waterproofing solutions to prevent basement leaks, keeping your Ontario home comfortable and protected from the Great Lakes to the rural countryside. $50 - $300+ per linear ft.
Our professional basement leak repair service resolves water intrusion issues for homeowners throughout Ontario. We identify the source of leaks, repair damaged areas, and implement effective waterproofing solutions that keep your basement dry year-round. Our comprehensive approach addresses both visible symptoms and underlying causes, ensuring long-lasting protection against moisture damage while maintaining your home's value and creating a healthier living environment in Ontario's challenging climate conditions. $50 - $300+ per linear ft.
Our exterior waterproofing service repairs leaky basements from the outside, ideal for homes across Ontario. We expose the foundation walls and apply necessary waterproofing materials, creating a robust system that redirects water away from your home, effectively preventing basement leaks and protecting your property's structural integrity in Ontario's varied landscape. $50 - $300+ per linear ft.
For Ontario homes already dealing with damp or wet basements, our interior waterproofing is the perfect remedy. We tackle moisture issues head-on, preventing mold growth and eliminating musty odors. Our techniques address hydrostatic pressure – a common issue in Ontario's diverse soil conditions – ensuring your basement stays dry year-round. $50 - $100 per linear ft.
A reliable sump pump is crucial for basement flood prevention in Ontario's varied climate. We install and service sump pumps that work tirelessly to keep basements dry across the province. Our systems come with battery backup options to ensure continuous operation even during power outages, providing 24/7 defense against wet basements for Ontario homeowners. $500 - $3000
Our professional backwater valve installation service prevents devastating sewer backups for homeowners throughout Ontario. We accurately locate the main drain, install the protective valve, and implement seamless concrete restorations that keep municipal wastewater out. Our comprehensive approach addresses both immediate threats and long-term vulnerabilities, ensuring long-lasting protection against sewage damage while maintaining your home's value and creating a safer living environment in Ontario's unpredictable storm seasons. $500 - $3000
Transform your cramped Ontario basement into a spacious oasis with our underpinning services. We use advanced underpinning techniques to increase ceiling height and living space in homes throughout the province. This service not only expands your usable area but also adds significant value to your property while ensuring proper waterproofing. $300 - $500 per square ft.
Unlock the structural possibilities of your basement with our basement lowering services. Using engineered benching, we safely lower your basement floor to provide optimal head clearance and structural strength. This comprehensive structural upgrade addresses foundation stability while delivering the open-concept layout your growing family requires. $300 - $500 per square ft.
Ontario's freeze-thaw cycles can wreak havoc on foundations. Our epoxy crack injection service seals leaky basement cracks throughout the province, preventing water ingress and further damage. We use high-grade epoxy to bond your foundation back together, creating a watertight seal that stands up to Ontario's tough weather conditions. $50 - $650
For new constructions across Ontario, we offer comprehensive waterproofing services. Our team works with local contractors to ensure new foundations are waterproofed from the start. By addressing potential leaky basement issues during construction, we help deliver dry, worry-free basements backed by our lifetime warranty for Ontario's new homeowners. $2.75 - $4 per square ft.
Many Ontario homes feature crawl spaces prone to moisture issues. Our encapsulation service creates a dry, clean environment in these often-overlooked areas. We seal out moisture, preventing leaky basements and protecting homes from the ground up, transforming your crawl space into a dry, functional part of your Ontario residence. $7 per square ft.
Our structural repair experts assess and fix foundation problems in homes across Ontario. From minor cracks to major structural concerns, we use engineer-approved techniques to stabilize and strengthen your home's foundation, preventing leaky basements and ensuring your property's long-term integrity in Ontario's diverse geological settings.
When Ontario's unpredictable weather leads to basement flooding, our rapid response team is ready. We serve the entire province with advanced water extraction and drying techniques, minimizing damage and preventing long-term issues. Our experts use industrial-grade equipment to restore your basement quickly, getting your life back to normal after water damage. $1000 - $100,000 per size of job
CTV News Toronto Interviews RCC Waterproofing to find out how busy the company is during the Spring season and how homeowners all over Ontario can spot situations that may lead to basement floods.
RCC Waterproofing speaks to Breakfast Television on CityTV Toronto about protecting your foundation from flood damage when the spring thaw creates pools of water around your home.
RCC Waterproofing is featured on three episodes of Holmes and Holmes where the crew is waterproofing the exterior and interior of Mike Holmes Jr’s house. Watch one of the episodes here where RCC’s own Anthony Parolin recommends waterproofing his foundation from the outside of the house.
RCC Waterproofing speaks to Breakfast Television on CityTV Toronto about protecting your foundation from flood damage when the spring thaw creates pools of water around your home.
RCC Waterproofing speaks to City News Toronto to provide home waterproofing tips and let homeowners know how the Spring Thaw could cause basement leaks and other types of foundation damage.
RCC Waterproofing tells City News Toronto about how many waterproofing jobs the company has done this Spring season in places like Mississauga, Scarborough, Etobicoke and all over the Greater Toronto Area.
CHCH talks to RCC Waterproofing about the aftermath of the Stoney Creek Storm near Hamilton and how homeowners can prevent basement floods by stopping water from coming through their foundation and into their houses.
Toronto braces for possible flooding amid a multi-day storm. The Globe and Mail speaks to RCC Waterproofing’s President Tony Romanelli about how RCC has been receiving 500 calls a day from homeowners in Toronto, Mississauga, Scarborough and all of Ontario thanks to storms causing basement floods.
The Toronto Star interviews Tony Romanelli from RCC Waterproofing who asks readers “Is your basement waterproofed?” and tells residents and homeowners the likelihood of exterior foundation leaks and how to hire the right waterproofers for the job.
The Toronto Sun interviewed RCC Waterproofing to find out how homeowners can protect their basement from winter water damage and make changes around the house and foundation to prevent your basement from water leaks.
Basement waterproofing costs in Toronto vary by method and home condition—see the chart below for a general pricing guide. Learn more about our waterproofing costs below.
Waterproofing Method
Estimated Cost (Per Linear Foot)
Best For
Details
Exterior Waterproofing
$50 – $300+
Severe leaks, accessible foundation walls
Most durable solution; requires excavation.
Interior Waterproofing
$50 – $100
Finished basements, less invasive options
Installs from inside; ideal when excavation isn’t possible.
Foundation Crack Injection
$50 – $650 (per crack)
Single vertical cracks
Quick, non-invasive solution for poured concrete walls.
Sump Pump Installation
$500 – $3,000 (flat rate)
Water-prone areas or active leaks
Often paired with interior drainage systems.
Weeping Tile Replacement
$100 – $250+
Poor drainage or clogged systems
Improves water flow away from your home’s foundation.
Why RCC Waterproofing is the Leading Basement Waterproofing Company In Toronto
Recognized as the best waterproofing company in Toronto and Southern Ontario, RCC Waterproofing has earned multiple industry awards for exceptional service and workmanship. View below to see why homeowners continue to trust us as the leading choice for waterproofing.
Wet Basement Waterproofing Services
Stop basement flooding before it starts with professional waterproofing and foundation repair. Our experts locate leaks, seal vulnerabilities, and implement solutions that protect against moisture and mold. With a focus on long-term results, we make sure your home remains dry, safe, and structurally sound.
Start your basement waterproofing project with confidence—our team provides a detailed written estimate upfront. We offer reliable, affordable waterproofing and foundation repair solutions designed to protect your home from water damage, preserve structural integrity, and ensure a dry, comfortable basement year-round.
We’re recognized for delivering top-quality basement waterproofing and foundation repair services that get results. Browse our HomeStars and Trusted Pros profiles to read honest reviews from clients who have experienced our reliable wet basement and moisture control solutions firsthand.
Stop basement leaks and foundation damage before they worsen with our professional waterproofing services. Our team delivers cost-effective solutions for wet basements, cracked foundations, and moisture problems, ensuring durable results. All projects are protected by a lifetime warranty, giving homeowners confidence in their investment.
Expert foundation waterproofing contractors delivering reliable solutions for wet basements, foundation leaks, and water damage. With over 100,000 successful projects, our team ensures long-lasting protection using top-rated waterproofing methods.
Keep your basement safe from water intrusion with expert waterproofing solutions. We handle everything from foundation repairs to interior waterproofing systems, providing reliable services that prevent flooding, dampness, and long-term structural issues.
Prevent basement flooding and foundation problems with our trusted waterproofing services. We provide a written lifetime warranty on all repairs, so your investment is safeguarded while keeping your home dry and secure.
Keep your home protected from water intrusion with professional basement waterproofing services. Using premium commercial-grade materials such as Hydro Guard, we provide durable, effective solutions that safeguard your foundation and prevent leaks.
As the most referred waterproofing company, we specialize in basement waterproofing and foundation repair, offering homeowners trusted solutions for wet basements, effective moisture control, and long-lasting structural protection.
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.
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.
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…
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…
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…
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…
Discover RCC Waterproofing’s extensive project portfolio across Southern Ontario through our interactive map. Each pin represents a successful waterproofing solution, from urban centres to suburban areas. Click on locations to view job details, including before-and-after photos and techniques used. With examples from Toronto, Hamilton, London, Barrie, and beyond, this map showcases our vast experience since 1920 and the trust placed in us by homeowners and businesses throughout the region. Explore how we’ve addressed wet basements, foundation issues, and various waterproofing challenges in your area.
Interior and Exterior Waterproofing Cranbrook Av, Toronto, ON
If you’re seeking top-notch waterproofing solutions across Southern Ontario, look no further than RCC Waterproofing. With over 100,000 wet basement problems solved since 1920, our family-owned company has built an unparalleled reputation for excellence throughout the region. From bustling city centres to quiet suburban neighbourhoods, our expertise spans a wide range of foundation types and waterproofing challenges. We offer comprehensive services including exterior and interior waterproofing, foundation crack repair, sump pump installation, basement lowering, and crawlspace encapsulation, all backed by a lifetime warranty. Our century of experience, combined with our use of industry-leading products, ensures that whether you’re in Toronto, Hamilton, London, Barrie, or anywhere in between, RCC Waterproofing has the knowledge and skills to safeguard and enhance your property. Don’t let foundation issues compromise your home or business – join the thousands of satisfied customers who have trusted us with their waterproofing needs across Southern Ontario.
Our RCC Waterproofing Blogs are the ultimate resource for expert waterproofing advice, tips, and the latest innovations in waterproofing solutions. With expert knowledge coming from our waterproofing team, our blog covers everything you need to know about safeguarding your home against leaky basements, basement foundation cracks, and more. Explore topics like basement waterproofing costs in 2026, underpinning and benching, exterior waterproofing your basement foundation, interior waterproofing with a sump pump installed, and more. RCC Waterproofing also shares the many accolades and awards the waterproofing company has won like Top Choice Awards, Holmes on Holmes appearances, and being the Homestars “Best of the Best” Awards recipient 16 times! Stay tuned for regular updates and expert waterproofing advice!
At RCC Waterproofing, we make it simple and affordable to protect your home from water damage. Our exclusive promotions and limited time offers, including 5% off waterproofing services for qualifying groups, help homeowners address their basement leaks before they become costly foundation problems.
These offers can be combined with our Price Match Guarantee, and our flexible 0% financing options make it easier to move forward with essential foundation repairs. Every waterproofing job is backed by our Transferable Lifetime Warranty, giving you lasting protection and peace of mind for years to come.
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.
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.