Brianna HarrisonIs your basement suffering from a leak? In that case, you need to hire the best waterproofing companies in Toronto as soon as possible to prevent further damage to your house’s foundation.
There may be hundreds of waterproofing companies all over the Greater Toronto Area, but worry not because we made a compilation of the ones worth hiring for your convenience.
Before we get to it, we’ll look at the average cost of waterproofing services in the area to help you know how much money you need to shell out to repair home leaks.
The Cost of Waterproofing Services in Toronto
Generally, the cost of basement waterproofing is influenced by multiple factors such as waterproofing method, foundation depth, waterproofing materials, foundation reinforcement, and labor and installation.
The average cost of exterior waterproofing ranges from $50 to $400 per linear ft., while interior waterproofing is around $70 to $300 per linear ft. The former is pricier because it requires a fair amount of digging to reach the foundation and repair the cracks.
These two are the most common solutions offered by most waterproofing companies in the area, but there are other specialised waterproofing solutions that generally cost more money.
Here’s a more detailed look into the average rate of other basement waterproofing services in Toronto:
| WATERPROOFING SERVICE | AVERAGE COST |
| Basement lowering and underpinning | $300 – $500 per square ft. |
| Benching | $300 – $400 per square ft. |
| Sump pump installation | $500 – $4,000 |
| Window well installation | $70 – $350 |
| Cracked foundation repair | $1,600 – $3,200 |
| Mold removal | $1,000 – $5,000 |
| Exterior waterproofing of a new house | $3 – $10 per square ft. |
| Crawl space encapsulation | $8 – 12 per square ft. |
| Internal crack repair | $50 – $750 depending on the size of the crack |
| Spot repair | $1,600 – $3,200 |
| Backwater valve installation | $1,600 – $4,000 |
The Best Waterproofing Companies in Toronto
Let’s now go over which wateproofing companies in Toronto we deem worth every homeowner’s attention.
Continue reading below to see which one can best handle the leak situation inside your home.
1. Dryshield Waterproofing
| SERVICES | Interior Basement Waterproofing, Exterior Basement Waterproofing, Foundation Crack Repair, Crack Injection, Sump Pump Installation, Battery Backup Systems, Crawl Space Encapsulation, Leaky Basement Repair, Wet Basement Repair, Foundation Waterproofing |
| WEBSITE | https://www.dryshield.ca/ |
| ADDRESS | 60 Millwick Drive, Toronto, ON M9L 1Y3 |
| CONTACT DETAILS | 416 361 3323 [email protected] |
| OPERATING HOURS | Monday – Sunday: 6 AM–11 PM Available 24/7 for emergencies |
Dryshield Waterproofing is a trusted Canadian company specializing in basement and foundation protection across Toronto, the GTA, and Southern Ontario. With over 25 years of experience, they provide permanent solutions for homeowners and property managers facing water damage and structural concerns.
Their approach combines engineering-backed methods with premium materials, ensuring results that last for decades. From HDPE drainage membranes to industrial-grade weeping tiles, Dryshield exceeds standard building code requirements for waterproofing.
Interior basement waterproofing is ideal for cost-effective, high-performance moisture control. By installing closed-loop drainage systems and sump pumps, they relieve hydrostatic pressure and keep basements dry even during heavy rainfall.
Exterior waterproofing offers full protection by excavating to the footing, repairing structural cracks, and applying elastomeric membranes. This method stops water before it reaches foundation walls and ensures long-term prevention of leaks.
Dryshield also specializes in foundation crack repair using high-pressure polyurethane for active leaks and epoxy for structural reinforcement. These solutions restore integrity without unnecessary demolition or disruption.
Sump pump installation and battery backups are another highlight, protecting homes from sudden flooding while also qualifying for municipal rebates. Dryshield’s regional hubs allow them to tailor solutions for local soil and water conditions, from clay-heavy areas to high water table regions.
The company maintains in-house crews, ensuring quality control, transparent pricing, and a “Clean Job” standard. Combined with a transferable lifetime warranty and fully insured operations, Dryshield sets itself apart as a premium waterproofing provider.
Pros
- Transferable lifetime warranty
- Fully insured and licensed
- Transparent pricing
- Rebate assistance
Cons
- Exterior excavation may be disruptive
Customer Reviews
Dryshield earns its place among the top waterproofing companies in Toronto, thanks to these glowing customer reviews:
“Our basement has just been repaired by DryShield and we couldn’t be happier. The crew of Jake, Curtis, Brian and Paul were courteous and professional in every way, completing the work in only four days and resolved our concerns entirely.” – Steve in Burlington
“Our home had a leaky basement with unforeseen pools of water that were subtle. A small amount of water or moisture can cause damage when not treated. So, we opted for Dryshield’s service right away!” – Mia & Kane
2. RCC Waterproofing Toronto
| SERVICES | Interior waterproofing, exterior waterproofing, waterproofing foundation cracks, waterproofing newer homes, basement lowering, foundation structural repair, and sump pump installation |
| WEBSITE | https://rccwaterproofing.com/ |
| ADDRESS | 4101 Steeles Avenue West, Suite 201 Toronto, Ontario M3N 1V7 |
| CONTACT DETAILS | 416-747-1920 [email protected] |
| OPERATING HOURS | Monday to Friday: 9:00 AM – 5:00 PM |
You’ve probably heard of RCC Waterproofing as it’s one of the most well-known waterproofing companies in Toronto, with long-term customers from GTA and surrounding areas.
It’s a three-generation waterproofing company that goes all the way back to 1920, making it among the oldest foundation experts in the area. In fact, it’s worked on some of Toronto’s finest residential areas, which says a lot about the quality of its services.
RCC’s waterproofing staff is made up of technicians, foremen, and consultants, all of whom have years of experience under their names. You know a waterproofing company can get any job done when there are more than 40 people in its team.
One noticeable trait about RCC is that it goes beyond the regular waterproofing services. Does your home have serious structural issues? The folks over at RCC can deal with that!
Apart from waterproofing the basement to improve the integrity of your home, RCC can take preventative measures to stop leaks and structural issues from occurring in the first place. This is something that new homeowners should consider upon settling in.
Lastly, RCC offers free estimates to every customer, regardless of whether they’re pushing through with its services or not. Not a lot of homeowners can refuse the quality of its waterproofing services, though.
Pros
- More than a hundred years of experience
- Large staff of waterproofing experts
- Free inspection
- Multiple payment options
Cons
- Above-average rates
Customer Reviews
Phil Bagley shared this comment on Google Reviews:
“The RCC team did a great job. Moe and his team were very professional and courteous. They worked hard and fast. It was very impressive. Thanks go to Rita as well as she kept up on my concerns and addressed them quickly. The basement is dry! Many thanks to RCC!”
Another customer named Fred Kwan sang praise about his experience with RCC:
“I was planning to finish the basement for my kids and have an office as well. However, I found several leaks in my basement foundation. I contacted RCC as they were the most reputable. Rick , our sales person, showed up timely and very knowledgeable. He was trustworthy and gave us confidence in the repair to be done. The crew and Sam showed up on time and were very tidy. Kat at RCC made the invoicing and scheduling very easy. Upon completion, no more leaks even after several rain storms this spring. We are now in-process of finishing our basement and couldn’t be more happy with RCC.”
3. Act Fast Waterproofing
| SERVICES | Basement Lowering / Underpinning Control Mold Crack Injection Sealing Demolition and Excavation External Waterproofing Internal Waterproofing Masonry Services Sump Well & Pump Window Well |
| WEBSITE | https://www.actfastwaterproofing.ca |
| ADDRESS | Toronto, ON |
| CONTACT DETAILS | Phone: 647-993-3466 Email: [email protected] |
| OPERATING HOURS | Contact for more information |
Finding the right waterproofing company is sometimes too big of a task. Fortunately, the next company on our list promises one thing that others haven’t so far.
Act Fast Waterproofing is a waterproofing company that addresses issues regarding basements and crawlspace. Collectively, the Act Fast Waterproofing team has over 15 years of experience in the field, the time of which allowed them to earn the necessary skills, expertise, and techniques they need to offer waterproofing services that will dry up spaces permanently.
That’s right, permanently.
See, Act Fast Waterproofing most efficient, cost-effective, and reliable waterproofing systems available anywhere to dry up the basement or crawlspace once and for all. The company has spent a lot of time conducting research regarding products and techniques; in the end, it allowed them to choose the necessary equipment to deliver on their special promise.
Aside from the longevity of the waterproofing services, Act Fast Waterproofing also offers one of the most solid waterproofing warranties, which can be passed on to future homeowners.
Lastly, Act Fast Waterproofing is commendable for having a team of experts, all of whom underwent proper training to ensure that they are capable of delivering what is expected of them. Alongside their skills and expertise, these professionals are also prompt, polite, and courteous to every client they meet.
Pros
- 25 years of experience in the field
- Transferrable warranty
- Team of waterproofing experts
Cons
- No information regarding rates online
4. AAA Waterproofing & Underpinning
| SERVICES | Waterproofing, Underpinning, and Lowering |
| WEBSITE | https://aaawaterproofing.ca |
| ADDRESS | 1750 The Queensway unit 1339 Etobicoke, ON M9C 5H5 |
| CONTACT DETAILS | P: 416-833-6095 E: [email protected] |
| OPERATING HOURS | Contact for more information |
AAA Waterproofing & Underpinning is one of the longest-running waterproofing companies in Toronto, having served the area for over two decades now.
The company is known to provide quality waterproofing that ensures no leakage in the areas they work on. AAA Waterproofing & Underpinning makes use of quality materials and has keen attention to detail, resulting in such.
Another thing worth noting about AAA Waterproofing & Underpinning is its team, which consists of trained professionals who are not only skilled at their jobs, but are also professional and polite. They endeavour to satisfy customers every time, so they go out of their way to ensure that each and every project ends with resounding successes.
Those who are interested to learn more about AAA Waterproofing & Underpinning’s business will be happy to know that the company offers free, no-obligation estimates.
Pros
- Accepts all major cards
- Offers free quotations
- Quality waterproofing and underpinning services
Cons
- No information regarding rates online
Tips for Finding the Best Waterproofing Company
Here’s a brief guide that homeowners can follow when finding a waterproofing company to deal with the leaks and cracks inside their home and basement:
1. Find out how long have they been in the business
The number of years a contractor has been in operation is a great measure of the quality of its services. After all, a company with poor quality of service wouldn’t be able to survive for years because no customer will dare to go near it.
Luckily, most of the waterproofing companies on our list have been around for more than 20 years. If a company was able to survive that long, that means that it knows how to get the job done right and to not disappoint homeowners.
2. Seek out reliable online reviews
Another way to get a gauge of a waterproofing contractor’s capacity is by checking out online reviews. However, you should know which ones to trust and which ones to take with a grain of salt.
Online reviews are a double-edged sword that show the best and worst of a company. It’s also worth noting that a dissatisfied customer is more likely to leave a review than a satisfied one.
With this mind, you should only pay attention to online reviews shared by verified customers. A verified user usually has a profile picture, a check beside their name, and has posted comments about other companies.
3. Ask how they can meet all your needs
Personally, we suggest going with a waterproofing company that can go beyond fixing the walls and cracks of your walls and floors. That way, if your basement needs more than just waterproofing, you won’t need to hire another contractor to take care of the other problem.
Basement waterproofing is connected to foundational repairs, mold testing and removal, sump pump installation, and backwater valve installation, so make sure that your chosen contractor can at least do most of these.
4. Check their warranty policy
As a homeowner, you want some sort of protection in case a waterproofing task turns out to be faulty since it’s a serious investment that costs a lot of money.
Even the most trusted waterproofing company offers a warranty together with its product and services. Warranty is one of the most effective ways to protect the interests of customers and establish relationships with them.
We recommend opting for a contractor with a warranty policy that lasts between 15 to 25 years.
FAQs about Waterproofing
With that, we conclude our list of the best waterproofing companies in Toronto. We hope that our list helps you decide which waterproofer to hire to put an end to frequent flooding in your basement.
If you know of other waterproofers with quality services, don’t hesitate to share their names with us. If we found them worthy, you’ll definitely see their names here soon.
If you’re dealing with electrical issues as well, we recommend checking out our list of the best electricians in Toronto. Any of these electricians can deal with a variety of electrical issues, from busted circuits down to faulty electric wires.
