Basement Waterproofing Toronto & the GTA

Interior & Exterior Basement Waterproofing

Are you you dealing with a leaky or wet basement? Has your foundation cracked or been compromised? A waterproofed foundation is the solution. Interhome’s basement waterproofing  Toronto division provides basement waterproofing with expert results for Toronto and GTA residents.  Stop worrying about your property or placing at risk your family’s health and call us at 416-836-5253 for a free full house basement waterproofing evaluation. We are a family operated company, serving homeowners since 2004 and offer interior waterproofing, exterior waterproofing, foundation repairs, sump pump and weeping tile installations.

We are expert basement waterproofing contractors and we have extensive experience repairing foundation cracks and leaky wet basements.. There is little doubt. A waterproofed foundation is a fundamental necessity. Toronto is known for its varied weather temperatures with hot humid summers, heavy rain and snowfall that repeatedly saturates the ground causing shifting soil that is heavily saturated with moisture. The moisture-saturated soil is constantly pushing against your concrete, stone or cement block foundation. This can cause it to crack, heave or crumble.

Exterior Basement Waterproofing

Exterior Waterproofing is one option to resolve this problem and involves the following process:

• Excavation around the perimeter of the building to a depth between 4 to 8 feet deep and 2.5 feet wide to expose the foundation walls and footings.
• The foundation walls are washed down and examined for holes or cracks. Once dried, these areas are chiseled out, and repaired with non-shrink specialized hydraulic cement that is applied to the crevices.
• The foundation walls and footings are fully covered with a rubber bithuthene membrane
• The foundation wall is covered with a plastic drainage mat all the way down to the footing level
• Broken weeping tiles are removed and new weeping tiles are laid and connected to the appropriate drainage point.
• Clean ¾” gravel is laid over the weeping tiles.
• The soil is backfilled and compacted to prevent future settling.
• The debris is removed from the site
• The previous landscape materials such as plantings, mulch, interlocking stone, asphalt, concrete is re-installed like new

Interior Basement Waterproofing

Interior Waterproofing is a reliable alternative when there is no available exterior access to the foundations. It is also known as an internal perimeter drain system.

This method of interior waterproofing is very effective when dealing with a high water table under the basement floor slab, and cracks in the foundation. The interior weeping tile system is interior waterproofing that will keep your basement dry and is as effective as exterior waterproofing without having to excavate the outside foundations. The installation of this system requires bare basement walls.

Interior waterproofing involves the following process:

• In finished basements, the lower part or entire stud walls are removed to expose the bare basement walls.
• The footings are fully exposed and a trench for the installation of drain pipes (or drain tile) is made by jackhammering the basement floor slab next to the foundation walls.
• The exposed bottom course of concrete block is drilled into to make weeping holes
• A perforated drain pipe is laid next to the footings
• An air gap membrane is installed over the entire exposed walls
• Beneath the basement floor a sump liner and submersible sump pump are installed with the liner cover flush to the floor.
• The drain pipe is routed to the sump liner.
• Water collects from the concrete and is mechanically directed to the exterior by the sump pump.
• The lower portion of the drainage membrane and the drain pipe are positioned and new concrete is poured to repair the trenching along the foundation wall and leveled to the floor.
• Upon finishing all that is seen is the membrane secured to all the walls and a discharge pipe leading to the exterior from the sump pump.