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#1 waterproofing in Toronto and the GTA

Interior Basement Waterproofing Services

Call DGI for the best interior basement waterproofing services in Toronto and the GTA! We will create a custom waterproofing plan for your property so you can relax knowing your home is protected.

IICRC certified waterproofing company
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What Is Interior Basement Waterproofing?

Interior basement waterproofing manages water once it has already reached your foundation, using an interior drainage channel (weeping tile) installed around the perimeter of the basement floor that collects groundwater and routes it to a sump pump, which pumps it out and away from the house. Unlike exterior waterproofing, it does not require excavating outside the home, which makes it faster to install and a good fit for finished yards, tight lot lines, or attached structures where digging outside is not practical.

Interior Waterproofing Specialists in Toronto & GTA

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Same-Day Waterproofing For Basement Interiors

Protect your property with basement waterproofing from the inside! This popular waterproofing method is a favourite among homeowners throughout Toronto and the GTA. Suitable for all kinds of property types, waterproofing the inside of your basement is extremely effective and will keep your basement dry all year round!

All of our interior basement waterproofing services are custom, we consider your unique basement and work with homeowners to provide the best waterproofing service possible. Our pricing starts from $50 per linear ft, however, please note that all prices are approximate and may vary based on the specifics of a project.

  • WSIB and IICRC certified company
  • 10 years warranty on all interior waterproofing services
  • Qualified and insured contractors
  • 5 stars on Google!
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basement waterproofing from the inside

The Best Waterproofing Solution For Interior Basement Walls

When you work with DGI Waterproofing you can guarantee the best waterproofing solutions for your home. Our custom internal waterproofing plans will protect your basement walls, floors and ceiling from future leaks and potential mould. Call us to schedule same-day waterproofing for your basements interior!

structural integrity

Mould Prevention

Waterproofing the inside of your basement is a proactive way to prevent mould growth. By ensuring the area remains dry, you create a inhabitable area for mould to thrive.

improved air quality

Long-Term Basement Protection

You don’t have to suffer with a wet basement! Tackle the problem head on with the help of DGI Waterproofing, we will create a waterproofing plan that will keep your basement dry for years!

customer satisfaction

5 Star Customer Reviews

We always prioritize our customers and it shows! Our technicians will always put our customers first, tailoring services and appointment schedules to suit you.

How We Waterproof The Inside Of Your Basement

Every basement is unique and so is their waterproofing requirements. Our team will work with you to create a custom interior waterproofing plan that considers your properties foundation condition, waterproofing requirements, land grading, local flood zones and more! We have outlined our internal basement waterproofing process below so you know what to expect when you schedule our service.

Step Description
1 Basement Inspection Conduct a through examination of your basement to identify any leaks and areas of concern.
2 Excavation Carefully excavating around the inside of your basements perimeter for the internal drainage system.
3 Drill Weep Holes If required, we will drill weep holes in the foundation to relieve pressure.
4 Waterproofing Layer Apply waterproofing membrane to the inside walls of your basement.
5 Interior Drain Installation Install weeping tile around the perimeter of your basements interior.
6 Gravel Fill Cover the weeping tile with a layer of gravel to allow water to drain into your new internal drain.
5 Concrete Finish Cover the internal drain system with a layer of concrete.

Step 1: Basement Inspection & Foundation Repairs

Basement Inspection

First, we will begin by inspecting the interior of your basement, this will allow us to access the area for damp, mould or decay. At this stage we will discuss any recurring issues with the homeowner and build a custom waterproofing plan.

Foundation Repairs

Once we have stripped the walls down to the frame we will complete any foundation repairs through a method called ‘injection crack repair’. This uses a hydraulic cement or epoxy paste to effectively seal the crack, preventing any leaks or moisture to infiltrate your basement while we complete the waterproofing service.

Drill Weep Holes (if required)

If required we will drill weep holes in the foundation to relieve pressure and prevent future repairs. This is only required when the foundation is made from hollow concrete blocks or your basement suffers from frequent leaks.

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Step 2: Interior Waterproofing & Interior Drain Installation

Install The Waterproof Membrane

Once we have addressed any foundation cracks and sealed any potential leaks, we will install the waterproofing membrane. Our waterproofing contractors only use the best membrane to waterproof the inside of your basement, preventing future basement leaks.

Install An Interior Drain

Next it is time to install the interior drain, this will collect any excess water and channel it to your sump pump. We will begin by excavating around the perimeter, before installing the weeping tile and connecting to the sump pump. Once we have checked that your new basement drainage system works effectively, we will add a layer of gravel to cover the weeping tile, then sealing it off with a concrete layer.

Please note: If you do not have a sump pump already at your property, we can install a new sump pump as part of our basement interior waterproofing service.

Our Customers Love Us!

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DGI recently completed a multi-dimensional waterproofing project for my basement, which included a full bedroom wall replacement, and I could not be more pleased with the results. From the initial consultation to the final walkthrough, Daniel and his team’s professionalism, expertise, and attention to detail were evident at every step. The project was executed with precision and efficiency, with clear communication throughout. Daniel went above and beyond to ensure the work was completed to the highest standard, leaving me with a fully secure, dry, and beautifully finished space. I would confidently recommend DGI to anyone in need of high-quality waterproofing and structural repair work. Their commitment to excellence made this a truly outstanding experience.
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Dev D
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Daniel was very efficient and professional- he explained the process from start to finish. I would highly recommend!
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Angelo Volpe
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DGI Waterproofing is definately the company you want to hire for any waterproofing needs. Daniel and his team are very professional and delivered beyond expectations. I would absolutely use DGI for any future projects and would highly recommend them!!! Pleasure working with you and your team Daniel!!
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Jason Matthews
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Great communication really appreciate their expertise. Best wishes
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Ramy William
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DGI is awesome! Daniel is incredibly helpful, Knowledgeable, cares about his client, and most importantly always wants to do the job right.
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Sunny Gym
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Had an incredible experience and stress free with DGI waterproofing. They took care of everything in a professional and timely matter. Would definitely recommend
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Karamjit Tark
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Amazing service , absolutely 5 star Daniel and his team was just amazing, I will highly recommend him to everyone who have water leak issues
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J Lee
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I had an excellent experience with Daniel and his team. The job was completed on schedule and with great attention to detail. I highly recommend them to anyone looking for reliable and professional waterproofing services.
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Regi Petrocelli
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A big thank you to Daniel and the dgi waterproofing team for your work in waterproofing our basement. The team worked diligently and completed the work quickly. We appreciate how clean and tidy they were. Thank you for the great job!

Interior Waterproofing FAQs

Interior waterproofing addresses water that has entered or could enter your basement through the foundation, while exterior waterproofing prevents water from entering from the outside before it reaches the foundation walls.

The duration of interior waterproofing projects varies, typically ranging from one to three days, depending on the complexity of the project and the size of your basement.

Absolutely, it provides a significant increase in property value by preventing potential damage and enhancing the overall environment of your basement.

The investment in interior waterproofing varies, but it is a cost-effective measure compared to the potential expenses of remedying water damage. DGI’s Interior Waterproofing prices start at $50 – $200 per linear ft. However, please note that all prices are approximate and may vary based on the specifics of a project.

Signs include water stains, damp basement walls or floors, a musty odor, or visible mold growth.

Serving Homeowners Across the GTA

We provide this service throughout Toronto and the surrounding region, including Toronto, Mississauga, Vaughan, Brampton, Markham, Richmond Hill, North York, and Hamilton.