WATERPROOFING BASEMENTS SINCE 1995

Trusted Interior Waterproofing in Toronto

Expert Interior Waterproofing!

At Direct Waterproofing, we provide a comprehensive range of interior waterproofing solutions to protect your home. Our qualified and experienced team can install full interior wall waterproofing, along with additional options like interior drainage, sump pumps, and crack repair tailored to your needs. Our cost-effective treatments prevent water from entering your property, effectively eliminating the risk of dampness and mold.

 

what is interior waterproofing?

Interior waterproofing focuses on protecting the inside of your property using waterproof materials that add extra layers of protection to your walls. This approach is complemented by effective interior drainage to redirect water away from your home, requiring less excavation than exterior solutions.

We also repair cracks and gaps in basement walls using sealant and cement. If water pools in specific areas, our pump and drainage installations can efficiently channel it out of your basement.

Watch This Video Demonstrating Our Interior
Waterproofing Services

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Why Might You Need Interior Waterproofing?

A damp, moldy basement can harm air quality and cause respiratory issues, rendering the space unusable. Our interior waterproofing solutions effectively tackle these problems, restoring your basement.

While exterior waterproofing offers the most protection, it may not be feasible due to access or budget constraints. Interior waterproofing allows us to work from within your home, requiring less excavation while still providing lasting protection against leaks.

These solutions can also help prevent water pooling and minimize flood damage. If you’re facing dampness, mold, or leaks, interior waterproofing may be your ideal solution!

Personalized Interior Waterproofing Services

With over 25 years of experience, we understand that every home is unique, and so are your waterproofing needs. At Direct Waterproofing, we thoroughly analyze your property to identify problem areas and tailor our services to your goals.

Whether you need a simple crack repair with high-quality sealant, a pump system, or drainage solutions, our personalized approach ensures effective and lasting results.

We offer a free, no-obligation consultation to assess your property for damage, leaks, and mold. By the end of the meeting, we’ll provide a quotation for the specific work that best fits your home and budget.

Interior Basement Wall Waterproofing Steps

  • Breaking and Digging

    The basement floor is broken and cleared to prepare for the installation.

  • Drilling Holes

    Holes are drilled in the walls to drain water.

  • Fixing Wall Cracks

    Cracks and gaps are filled with sealant or hydraulic cement.

  • Installing Delta Membranes

    Delta membranes are applied to create a waterproof barrier and direct water flow to the sump pump.

  • Installing Weeping Tiles

    Weeping tiles are laid in the trench to redirect water to the sump pump system.

  • Gravel Filling

    Gravel covers the weeping tiles for effective filtration.

Advantages Of Interior Waterproofing

For a comprehensive and long-lasting waterproofing solution, exterior waterproofing is ideal. However, interior waterproofing is a more cost-effective option that can restore your basement to a functional space. It’s especially beneficial when exterior access is limited and can be combined with exterior methods for added protection.
  • Extremely cost effective solutions available.

  • Get rid of harmful mold and damp, and bring health and well being back to your home.

  • Protect your basement from leaks and water damage.

  • Restore the functionality and beauty of your basement room.

  • Increase the value of your home.

Interior Basement Waterproofing Cost Toronto

In Toronto, interior basement waterproofing typically costs between $70 and $350 per linear foot. This service is essential for keeping your basement dry and preventing moisture-related issues. To get a precise estimate based on your specific circumstances, consider reaching out to professionals like Direct Waterproofing, who can provide free on-site evaluations.

Why Choose Direct Waterproofing For Your Interior Waterproofing?

Direct Waterproofing offers unmatched interior waterproofing services in Ontario. Our solutions effectively restore your basement, eliminating damp, mold, and mildew using high-quality materials and advanced methods.

We prioritize a pleasant experience with minimal disruption and ensure the area is clean after our work. With our interior waterproofing, you can trust that damp and mold issues won’t return, backed by a 25-year full warranty.

Contact Direct Waterproofing today for a free consultation!

Top-Ranked Licensed Interior Waterproofing Experts

When it comes to interior basement waterproofing in Toronto, Direct Waterproofing stands out with the most licensed professionals in the area. Our industry-leading qualifications guarantee that your interior basement waterproofing needs are met with expertise and precision. We are fully licensed to provide a variety of services, including:

  • Ontario Plumbing License: F16194534
  • Toronto Master Plumbing License: T-95-4804177
  • Toronto Plumbing Contractor License: T94-4804170
  • Toronto Building Renovator License for 3 Trades:
    • Basement Waterproofing: T85-4953944
    • Underpinning: T85-4953944
    • Concrete Work: T85-4953944

Our dedicated team ensures top-notch results for your home, providing safety, quality, and peace of mind on every project.

 

Common Interior Basement Leak Problems

  1. Poorly Sealed Windows: Gaps or damaged seals around basement windows can allow water to enter during rain or storms.
  2. Wall Cracks: Cracks in basement walls can let water seep in, especially if the external drainage is insufficient or the foundation is compromised.
  3. Floor Cracks: Cracks in the basement floor can be a pathway for water seepage from beneath, often due to high groundwater levels.
  4. Sump Pump Failures: A malfunctioning sump pump can result in water accumulation in the basement, causing flooding and damage.
  5. Leaking Pipes: Leaking or burst pipes can contribute to moisture problems and water damage in the basement.

Interior Wet Basement Solutions

There are many solutions that we can use to make sure your basement is dry and cosy once again! We tailor the solution to your needs, and may use any one or a combination of the following interior waterproofing methods:

Basement Wall Waterproofing:

This is the main type of interior solution available, and provides a layer of waterproof protection that stops damp and mold from reaching the interior of your building. Delta membrane allows the water to flow away from the walls instead of getting trapped. This is combined with a sump pump and weeping tile drainage, which channels the water away from your home, and averts the crisis. The process is described more fully further below.

Foundation Gap & Crack Repairs:

If hydrostatic pressure or damp has already caused damage, then we can repair any gaps and cracks in your foundation walls or ceilings. These cracks are often points of entry for water. In order to repair the damage, we use hydraulic cement for larger cracks, and high quality water tight sealant where it is possible for smaller gaps.

Drainage Systems:

If water builds up in a certain area, a simple drainage system might be the solution. Drainage systems channel water away from your property. They can be combined with sump pumps and basins; the drain takes the water to the pump, which gets rid of the water. This is known as water control. We often use drainage systems in combination with preventative measures such as basement waterproofing.

Sump Pumps:

A sump pump is a brilliant system that removes excess water from your basement, and pumps it outside and away from your home. We can install sump pumps as a quick measure to rid your home of water, or in combination with full interior waterproofing services.

Full Interior Wet Basement Waterproofing Systems

If you require more than just a small repair to a gap in your foundations, and need a lasting interior waterproofing solution that will provide your basement with full protection against damp, then our interior wet basement full systems can do the job. We still personalize the job according to your home, but this is an overview of the main procedure:

Step 1:

The floor around the perimeter that needs the waterproofing will be broken, and the concrete cleared away. This allows us to excavate on the interior of your home. This trench is not too deep, but allows us to accommodate the weeping tiles.

Step 2:

Holes are then drilled in the walls. This serves a very specific purpose. It allows the water that is trapped to be drained away safely.

Step 3:

Any gaps or cracks in the walls of your basement are repaired. In some cases this only requires a water tight sealant. If cracks are larger, we use hydraulic cement in order to restore the walls, and ensure no more water can get through.

Step 4:

A delta drainage membrane is applied to the walls. This stops any water, damp, or mold from reaching the interior of your building, and helps the water to flow off into the weeping tile drainage and pump systems.

Step 5:

Weeping tiles are installed. These are a high quality piping that will soon divert the water away from your home.

Step 6:

The weeping tiles lead to a sump basin, and a sump pump is installed. When the system becomes active, the water will be guided to the pump, and then will be taken outside of your home and deposited in a safe place elsewhere.

Step 7:

The weeping tile is covered with gravel to provide maximum drainage.

Step 8:

Concrete is then poured into the trench to a flush level with the rest of your basement. We make sure we thoroughly tidy up the area, so that your basement is ready to be enjoyed once again!

Interior Wet Basement Solutions – Direct Waterproofing Ontario

If your house is being affected by wet basement problems, and unappealing and unhealthy damp and mold, then our interior basement solutions can provide you with a highly effective and cost efficient solution that will clear up the mess and leave you with a warm, comfortable, and cosy home. All of our interior wet basement solutions come with a 25 year full warranty, so you can be sure that you will be loving the results for years to come.

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FAQs About Interior Waterproofing

Interior waterproofing provides long-term protection, but regular maintenance of sump pumps and drainage systems is essential for continued effectiveness.

Costs can vary depending on the extent of the problem, but on average, interior waterproofing can range from $3,000 to $10,000.

Yes, interior waterproofing is minimally invasive and can usually be completed without the need to vacate your home.

Reviews of Our
Interior Waterproofing Services

Direct Basement Waterproofing Toronto place picture
5.0
Based on 307 reviews
Callum Tyrrell profile picture
Callum Tyrrell
2 months ago
friendly team, very efficient and quick. Thank you.
IDK profile picture
IDK
2 months ago
excellent customer service and great workmanship no more water issues after heavy rain
Sara Shinwari profile picture
Sara Shinwari
2 months ago
THE MILLION profile picture
THE MILLION
2 months ago
it’s a great company with great workers i highly recommend
Raddish Moment profile picture
Raddish Moment
2 months ago
Quick response and fast repair work. The leak hasn’t returned since.👍
Chris Ho profile picture
Chris Ho
3 months ago
Working with Jack and the team were great. They were all friendly, answered all questions and responds very quickly. Jack in particular is very communicative and ensures all needs are met and questions are answered. The team that did the job worked quickly and ensured the area was clean afterwards. Highly recommend!
Faye profile picture
Faye
4 months ago
We had a great experience working with Direct Waterproofing on our exterior waterproofing project. Terry, the project manager, was very knowledgeable and took the time to clearly explain the situation and the recommended solution. The estimate was accurate and the work was completed in two days as expected.

The two-person crew arrived on time each day and worked efficiently throughout the project. They were professional and the finished work looks very well done. Overall, we're very happy with how everything turned out. Thank you, Terry and Direct Waterproofing Team!
Andrew Glavac profile picture
Andrew Glavac
6 months ago
We recently had waterproofing work done in our basement by Direct Waterproofing, and we’re truly so pleased with the entire experience. Terry Lisevych and his crew were not only highly professional, but also friendly, respectful, and clearly took pride in their work. The quality was excellent, everything was completed on time, and they kept the job site spotless from start to finish.

From the very beginning, Terry was reassuring and took the time to explain everything clearly, which gave us a lot of confidence moving forward. He truly delivered on everything he promised, and the results speak for themselves.

What really stood out was Terry’s knowledge, honesty, and straightforward approach—it made the whole process feel easy and stress-free. It’s clear he genuinely cares about doing the job right.

We’re very grateful for their work and would wholeheartedly recommend Direct Waterproofing to anyone looking for reliable, high-quality service.
Shadan El Shafei profile picture
Shadan El Shafei
6 months ago
Excellent service from start to finish. The inspection was very thorough and the technician answered all my questions patiently. The repair crew arrived on time and worked hard the entire day. They were respectful of my property and made sure everything was clean when the job was finished. After the waterproofing work was completed, the difference was immediately noticeable. Even during strong rainstorms the basement stays completely dry.
Valerie Stubbins profile picture
Valerie Stubbins
8 months ago
We had a great experience with Direct Waterproofing. We contacted Terry on January 5 and he came out the very next morning to assess a foundation crack in our 1980s home. He provided a detailed quote later that same day.

Despite very cold weather and snow to clear, Thomas and John completed the repair on January 19 after the utility lines were marked. They did a great job and left the area clean. Terry provided photos taken throughout the repair and a lifetime warranty.

We also used Direct Waterproofing in 2024 for a window well drainage repair and another foundation crack with the same high-quality service. Highly recommend.
Mr T profile picture
Mr T
1 year ago
Thank you Jack ,Terry & workers Nick and Vasyl. Quality materials & quality work. Attention to detail. Great team.
Response from the owner
1 year ago
On behalf of Terry and Jack, we want to thank you for such a great testimony.It has been a pleasure working for you.
Avin Athari profile picture
Avin Athari
1 year ago
We had a great experience with this company for our waterproofing project. Everything was completed on time and exactly according to plan. Throughout the process, Greg, Terry, Thomas, and Max were all friendly, professional, hardworking, and a pleasure to work with. Thank you for making the process so smooth! We really hope their solution will keep us worry-free for the long run.
Response from the owner
1 year ago
On behalf of Greg, Terry and the crew, we want to thank you for such a great review. Your experience is very important to us. It has been a pleasure working with you.
Paolo Tersigni profile picture
Paolo Tersigni
1 year ago
I couldn’t be happier with the results. Terry and his team were professional, efficient, and clearly experienced. From the initial inspection to the final walkthrough, they explained every step and made sure I understood the process. The work was completed on time, with no mess left behind, and most importantly — no more water issues! I feel confident and secure knowing my home is protected. Highly recommend to anyone looking for quality waterproofing!
Response from the owner
1 year ago
Dear Paolo, thank you so much for such a great testimony. It has been a pleasure working with you.
John Hughes profile picture
John Hughes
1 year ago
Excellent work at a reasonable price. They job started on time in the morning and completed the work by 6.00pm thanks to an Incredibly hard working team. Project manager Jack could not have been more helpful.
Response from the owner
1 year ago
Thank you, John, for your positive feedback! We're delighted to hear that you found our work excellent and reasonably priced. It's fantastic to know that the project started on time and was completed efficiently by our hardworking team. Jack always strives to be as helpful as possible, and we're glad he made a positive impact on your experience. If you need any further assistance in the future, please feel free to reach out.
Alison LoBianco profile picture
Alison LoBianco
1 year ago
Would highly recommend Direct Waterproofing. Terry and his crew were professional, worked fast and did a great job. Fair pricing for interior waterproofing- sump pump and bench installation. Terry took the time to explain all of our questions. We plan to use them again to install a back flow valve.
Just had the back flow valve installed. Terry and team were quick and professional. We would highly recommend and would definitely use again for any future waterproofing needs!
Response from the owner
1 year ago
Thank you, Alison, for your glowing review and recommendation! We're delighted to hear that Terry and the crew provided you with professional and efficient service for both the interior waterproofing and backflow valve installation. It's fantastic that Terry took the time to address all your questions, ensuring you felt informed throughout the process. Your satisfaction with our fair pricing and quality work means a lot to us. We look forward to assisting you with any future waterproofing needs.
Suzana Majcen profile picture
Suzana Majcen
1 year ago
Direct Waterproofing company was amazing. From the 1st interaction, where Greg came to see my basement leak issue, to final day when it was completed. Greg was able to provide a quote right after he inspected the outside and inside the house. Their price was very competitive. They arranged for the "locate service" by City of Toronto. They came when they said they will come. When they discovered that what was under the porch was not what they at first thought, they quickly came up with a second solution, that was still close to the initial quote. The whole activity was lead by Terry. I don't know who the initial crew was, but second crew was Roman and Walter. They worked very hard, and were super careful and tidy. They dug over 25 feet around the front and side of the house, waterproofed the foundation, added weeping tile and cleaned up really well. They also dug a big hole for a sump pump in a tiny space of the furnace room corner without any issues. Now you can't even tell there is a sump pump there. Terry also came a few days later to do some touch ups! They were awesome! I would recommend them to anyone that is looking for a great experience and good workmanship!
Photo from customer reviewPhoto from customer reviewPhoto from customer review
Response from the owner
1 year ago
Dear Suzana, on behalf of Terry, Greg and the crew, we want to thank you for such an amazing review. It has been a pleasure working for you.
Daniel Batista profile picture
Daniel Batista
1 year ago
Great service Jack explained everything very satisfied with the work.
Thanks to your team .
Response from the owner
1 year ago
Thank you, Daniel, for such a great feedback. It has been a pleasure working with you.
David M profile picture
David M
1 year ago
The Directwaterproofing team were amazing, got right to it and worked till it was done. They were hardworking and great to get along with. Thanks John, George, Faro and Terry.
Response from the owner
1 year ago
Dear David, on behalf of Terry and the entire Direct Waterproofing Team, we want to thank you for such a great testimony. John, George and Faro are a very hardworking guys and your positive review will benefit their motivation.It has been a pleasure working with you.
Steven Indrigo profile picture
Steven Indrigo
1 year ago
Walter, Roman, Dima, and Terry from Direct Waterproofing did an excellent job on our exterior waterproofing and sump pump installation. It was a challenging job, as they had to undermine our back extension and work in a narrow alley with little room to move. They were professional, polite, skilled, and hard working. Highly recommend.
Response from the owner
1 year ago
On behalf of the crew and entire Direct Waterproofing Team, we want to thank you for such a wonderful feedback. It has been a pleasure working with you.
Jody Malone profile picture
Jody Malone
1 year ago
This company is FANTASTIC. Terry and his team worked so hard every day. And to finish the job, they returned on the weekend. His team members are strong and physically fit. Terry returns all calls promptly and explains everything respectfully and comprehensively. I recommended them to a friend and she found the exact same thing. They know what a good hard day's work looks like! *****
Response from the owner
1 year ago
Thank you, Jody, for such a great review. We really appreciate it as it motivates us to continue deliver a great service and improve along the way.It has been a pleasure working with you.
The team ensured that everything was correctly sealed and effectively repaired the leak. Even with the intense downpour, my basement is now totally dry. The fact that they cleaned and organised everything afterwards is the finest part. I heartily suggest them for any leaky basement problems!
N Mosk profile picture
N Mosk
2 years ago
Professional crew, timely service, and no more leaks.
Olga Shmyrina profile picture
Olga Shmyrina
2 years ago
Great service! Our basement is dry even after heavy rains. Highly recommend!
Ella profile picture
Ella
2 years ago
Prompt service and high-quality work. No more worries about water damage. Thank you.
Michael Mao profile picture
Michael Mao
2 years ago
Job was well done and Terry assisted and explained to me through out the process from the beginning to the end.
Tracy Cheng profile picture
Tracy Cheng
2 years ago
I don’t typically write reviews but I’ve had a few experiences with Direct Waterproofing now and wanted to call Terry and his crew out for their great work. They are efficient, clean, and Terry is very communicative and responsive.

DW completed the exterior and partial interior waterproofing on our semi and they were very respectful of the space in always keeping it tidy and clean. And it was nice to have people show up when they say they would and finish on time. Shortly after, we had an issue with dampness in our basement and Terry came out immediately to check on the issue (turned out it wasn’t related to the waterproofing). So when it came time to filling the cement in, I didn’t hesitate reaching back out to Terry versus looking for a different company to do the work. They were able to fit the job in shortly after I reached out and they’ll be coming by again to help reroute my sump pump line. All in all, I wish all other contractors were as responsive and easy to work with as Terry.
I had a water leakage issue in the basement after every rain for the last 2 years, but never found the root cause. This time I contacted Direct Waterproofing. Terry came in and checked and provided in depth plan on how to fix the foundation crack issue from outside. He was continuously in touch with me all these days and made me feel confident with the choice of solution seeing the cost involved (C$2000). And today, TERRY and his 2 very hard working team mates, JOHN and THOMAS, came in and dig the whole soil almost 7-8 feet, did all the treatment and re-filled everything in just 8 hours. I was there watching the whole process, and I can say I felt very satisfied with the hard work they put into this project. The price was worth it, but most importantly I got peace of mind now. I would highly recommend Terry and his team for any waterproofing work. They are very genuine and will not try to sell you unnecessary services. And they also give 25 years warranty.
Wolston Lobo profile picture
Wolston Lobo
2 years ago
Terry from Direct waterproofing is one of the best professionals I've met. And I don't say it lightly. We needed a sump pump and backup battery pump + discharge pipe.
Terry took the time to brainstorm ideas on where the discharge pipe should go so we don't cycle back the water into our sump pit.

Before installation he took out a lot of garbage that was in the sump pit. He took out plant roots that had grown from underground.

Terry not only installed both pumps and a discharge pipe but came twice and made sure we got everything needed to receive the city rebate.

After each work was done he took the time to clean the debris as well. This is what I call a true professional. You can tell pretty quickly that Terry really cares about the customer. Would highly recommend. 5 stars!
PAUL W. profile picture
PAUL W.
3 years ago
Thank you to Terry and his wonderful team at Direct Waterproofing . They fixed our water issue in the basement with amazing professionalism. They got the job done and was finished in a very good amount of time . They made sure everything was tidy and finished right . The cost was also reasonable . As you know when you have water coming into your home it can be very upsetting, but Terry was very reassuring and made the process very easy and positive .
Thank you Terry and crew !
Christina and Paul
Matthew McKay profile picture
Matthew McKay
3 years ago
So happy to be able to write another 5 star review for Direct Waterproofing! The team had done some some work for me a couple of years ago (basement inside waterproofing and installing a sump pump - which has been working fabulously!) and while they were here, they applied some concrete parging around my home to seal the area between the foundation and the bottom of the home. Due to weather it had cracked a bit and when I called Terry to see if they could come back and seal it again he was more than willing to help! Although this is a very busy season for them, Terry himself came and did the job. He was so pleasant and thorough and now everything is sealed up before the winter. And … he did it free of charge! I’m very impressed with Terry and his team. Would highly recommend! Thanks!

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Interior Waterproofing