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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.

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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
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basement waterproofing from the inside

Best Waterproofing 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 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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waterproofing services for inside basement

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.


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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.