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Great Lakes Waterproofing is your home for all basement waterproofing needs. We have been waterproofing the Midwest since 1978! Our experienced inspectors will assess your situation and apply the appropriate solution by doing a 24 pt. checklist. At Great Lakes Waterproofing, our team utilizes three main technologies to eliminate water and moisture in your wet basement. Our systems are outlined below and based on where your basement leaks are coming from.

Our 3 systems for basement waterproofing categorized by the problem you are experiencing:

Water Build Up Below Floor (Drain Tile System)
Water Entering Through Basement Walls (“No Digging” Bentonite System)
Water Entering through floor joint (Channel System)


Water Build Up Below Floor

(Drain Tile System)

Read More about our drain tile process here 

Your floor is cut 12″ from the wall. Cement and debris are removed and a channel is dug down to the footing. This channel is cleaned and the proper slope installed. Then each cylinder in the blocks is drilled, removing all water which has accumulated.

Once the blocks are drilled, water does not build up in them, but will flow freely through the holes into the drain system. Air circulates through the blocks drying the wall (except on poured walls).

Waterproofing paneling is placed over the 1 1/2 rows of blocks and a waterproof barrier is placed behind panels. Water pressure that built up under the floor is released into the drain system.

Perforated tubing is laid in the channel and enveloped in pee gravel to prevent mud, silt and sand from clogging up the drain. A gradual slope in the channel directs the water to the sump pump liner.

The sump pump discharges outside of the foundation wall, according to local codes.

It is necessary for you to provide an electrical outlet for sump pump installation.

The floor is resealed with concrete and all debris is removed. Great Lakes Waterproofing provides all labor and materials unless otherwise indicated in contract.

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Water Entering Through Basement Walls

(“No Digging” Bentonite System)

This works for wall cracks or to seal crumbling mortar joints

It is likely that your basement will develop leakage of some kind during its lifetime!

The age of the structure does not matter. We see many leaks in homes under five years old.

There are many causes of basement leakage:
1. Cracks in walls and floors due to structural changes such as settling.
2. Insufficient runoff due to improper landscaping and high clay content.
3. High water table.

The solution for cracks and poor run-off is our patented Hydroclay-Injection system. Water can enter block walls due to decay, cracks and missing mortar. It often comes through the seam between the wall and floor along poured-concrete walls.

With our patented Pressure Pumping Process, we have eliminated the need for digging. There is no damage to sidewalks, driveways and landscaping.
During the process, Bentonite Clay is injected into the soil around the basement at 3-4ft intervals. The Bentonite coats the walls from footing to grade.

As the Bentonite absorbs groundwater, it swells up to 15 times it’s volume and thickens, creating an impenetrable gelatin membrane, which protects against further water penetration.

This system is effective against water entering cracks and tie rods in poured walls, and mortar joints and pores in block walls.

Another effective means of waterproofing with Hydro-Clay is in the panel form is Volclay Panels.

Sheets of corrugated cardboard are filled with Bentonite. These sheets are applied to the walls before backfilling. After repeated wetting, the cardboard decays, leaving a layer of Bentonite against the wall. Wall cracks which can be excavated can also be sealed in this manner.

The Hydro-Clay Bentonite is unchanged with age. Once it is in the ground, it is a permanent repair. Should structural changes occur after application, the Hydro-Clay Bentonite will move with the soil to fill any gaps that may develop within the walls.

There are certain instances where the Hydro-Clay Bentonite alone would not be sufficient enough to solve your water problems.

These instances include water which enters the basement above the concrete foundation (due to improper landscaping), water which enters block walls above grade (due to improper landscaping), water which enters block walls above grade (due to decayed and missing mortar), and construction debris dumped against outside walls before backfilling, by contractors who do not want to carry it away.
In the latter case, the Hydro-Clay Bentonite cannot completely coat and seal the walls.

If one of these or other unforeseen conditions exist, a Drain Tile or Flume System would be installed.

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Water Entering Through Floor Joint

(Channel System)


In the case where the Hydro-Clay Bentonite cannot completely seal the walls, but there is not a high water table, a Channel System would be installed.

A Channel System is a 1 1/2″ by 1 1/2″ galvanized steel channel, sealed in a hydraulic cement cove.

On poured walls, the water travels between the wall and the footing, and leaks through the gap between the floor and the wall. No drilling is necessary on a poured wall.

On block walls, the water seeps through mortar joints and pores in the blocks. The hollow cores of the blocks must be drilled to exhaust the water into the Channel System.

The Channel System is laid atop the floor, against the wall, and is sealed in place with a hydraulic cement cove. The Channel System is drained to a floor or a sump basin.

Hydraulic cement is widely known for its waterproofing qualities. It is non-porous, fast setting, and expands slightly while setting, giving it a strong bond to concrete surfaces.

The Channel System will handle moderate amounts of water. Larger amounts of water, and water entering through the floor, must be handled by a Channel System.

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