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Interior basement waterproofing

Manage water from inside the basement, without digging up the yard. Serving homes across the GTA.

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Greater Toronto AreaToronto, York, Peel, Durham, Halton. Written quotebefore any work starts. 8 AM – 8 PM, 7 days.A real person answers.
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Interior waterproofingSigns you need it

Is this your problem?

Interior waterproofing doesn’t stop water reaching the wall. It catches the water that gets in and carries it to a sump pump before it reaches your floor. It’s often the better choice when digging outside is hard or the water is coming up from below.

  • Water coming up where the floor meets the wall
  • Hard to dig outside: driveway, deck or a close neighbour
  • Water pushing up through the basement floor
  • You’re renovating the basement anyway
  • Damp along several walls at once
  • No sump pump in the house
How the job is done4 steps

  1. Open the perimeter

    The concrete floor is cut along the inside of the leaking walls.

  2. Install the drain

    Perforated pipe is laid in clear gravel to collect water at the base of the wall.

  3. Add the sump pump

    The drain runs to a sump pit, where a pump sends the water outside.

  4. Close it up

    New concrete is poured over the drain and the floor is finished.

Project photosSee the full gallery
Drainage channel along an old stone foundation wall
Drainage channel along an old stone foundation wall
Drain edge set along the wall, floor re-poured
Drain edge set along the wall, floor re-poured
Finished: the drain runs to a covered sump pit
Finished: the drain runs to a covered sump pit
Floor patched where an interior drain runs to a new sump pit
Floor patched where an interior drain runs to a new sump pit
QuestionsInterior waterproofing
Does interior waterproofing stop water getting into the wall?

No. It controls the water that comes through and sends it to the sump pump before it reaches your floor.

Do I need a sump pump?

Yes. An interior drain needs somewhere to send the water, which is almost always a sump pit and pump.

Does my basement need to be unfinished?

No, but the bottom of finished walls along the drain usually has to be opened and put back.

How messy is it?

Cutting concrete makes dust. Ask about dust control and how the work area will be closed off when you get your quote.

Request a callbackTakes about a minute

Get your interior waterproofing quote.

Send the form, or call or text a photo to 416-995-6504. We'll go over it with you and book a time for a waterproofing pro to take a look.

Calls answered 8 AM – 8 PM, Monday to Sunday. Forms sent after 8 PM get a call the next morning.

Your basement

We'll call you back to go over it.

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