North York

Interior Waterproofing

Wet basement? Basement waterproofing from inside

Another method of redirecting water away from a leaky basement is an interior waterproofing solution.

Exterior waterproofing is always the best way to go, but some homes might be located too close to neighbouring houses, making exterior waterproofing (involving major excavation work) impossible.

For wet basements, Interior waterproofing doesn’t cost as much. Some homeowners opt both for interior and exterior waterproofing – they don’t want to take any chances with water leaks or flooding and want that extra layer of protection.

It could be a problem where constant rain or snowmelts over-saturate the soil and apply pressure to the foundation walls. Or it could be a situation where the water table below the concrete basement floor is rising, in part because of more substantial rainfall. That in turn puts pressure on the floor, causing water leaks through the floor or the area where the floor meets the wall.

Water and moisture in the basement will only get worse if it’s ignored. Over time it will lead to mould and mildew, and with that severe health issues – headaches, fatigue, coughing, throat and eye irritation, nasal congestion, skin problems, and fever.

Like with exterior waterproofing, building that layer of protection inside the home is labour intensive. It requires expertise. It needs to be planned and executed properly.

This method pushes water that has already entered through the foundation walls or from under the footing away from the finished interior. So the homeowner is re-directing water away, which is good, but it isn’t tackling the problem at its source.

Interior waterproofing is a drainage system located along the inside wall of the home and involves a multi-step process, according to professional home waterproofers:

How easy is waterproofing a basement

Again, you can do it yourself. There are DIY “Dry Systems” out there involving a chisel, grinder, dust mask, knee pads, high torque drill, adhesives and sealers for the foundation walls and concrete floor, directing water via a plastic pipe system into floor drains or sump pumps. That process is detailed and comprehensive to make sure the system works effectively, especially during heavy, steady rainstorms to prevent a wet basement.

However, there are no guarantees on how well-sealed the concrete walls are in any house – especially older homes. Water stays up against the foundation walls for a long time.

If the homeowner has invested money in creating a living space in the basement, perhaps an entertainment area for the family, a workspace, or even a revenue-generating basement apartment, peace-of-mind when talking about putting in place a waterproofing system becomes more of a factor.

If the space feels humid or smells musty, or there is mould present, and water stains, then that’s a sure-fire sign there is a water seepage problem. Water pressure on the foundation of the home, and the effects of that, is a constant issue for homeowners unless there is an effective waterproofing system in place installed by experienced professionals.

Serving our community

Canada Waterproofers is truly the best leaky basement waterproofing and plumbing company in the GTA.

If you are looking for honesty, integrity and the best service for waterproofing, then Canada Waterproofers is your best choice.

We are proud of our work and we look forward to many more years of providing the best waterproofing service in the industry to our community.

Call an expert today and receive a free estimate.

Thank you from the Canada Waterproofers Team

Fully Licensed Waterproofing Services

Internal waterproofing process


Why waterproofing wet basement from inside?


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  • Waterproofing

  • Drain Repair

  • Plumbing

  • 100% free estimate

  • 25 year transferable warranty

  • Fully Insured

Delta-ms drainage membrane is the final layer of protection that is applied when waterproofing your basement from the outside, This product is amazingly high quality that all other products try to simulate.