Great Lakes Waterproofing for Basements and Foundations

REAL WATERPROOFING!©

Serving Minneapolis, Saint Paul, the Metro Area and beyond

  • Wet Basement with beaver dam system

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    Beaver Dam System Leaking Everywhere

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  • Foundation waterproofing using bentonite

    Wet Foundation Holes and Cracks

    Foundation Cracks and Holes Allowing Water Into Bloomington Apartment Building

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  • Foundation waterproofing using bentonite

    University Using Exterior Waterproofing

    Real Waterproofing, On The Ouside!

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  • Foundation waterproofing using bentonite

    Mixing Bentonite for Real Waterproofing!

    Bentonite For Exterior Waterproofing

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  • Foundation waterproofing using bentonite

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    Saint Paul Home With Water Leaks

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  • Foundation waterproofing using bentonite

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    Drain Tile in Older Minneapolis Building

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  • Minneapolis Drain tile is leaking

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    Minneapolis New Drain Tile is Still Leaking!

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    Drain Tile Pipe Is Full Of Sand!

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  • Waterproofing paint is not working

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    Basement Waterproofing Paint Is Peeling Off

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  • Using dimple board for inside the wet basement

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    Dimple Board is Not Working on The Inside of my Basement!

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  • Drain Tile Pipes Are Plugged Up

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    Drain Tile Pipes Are Plugged Up

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  • I Have A Drain Tile But My Wall Is Still Leaking

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    I Have A Drain Tile But My Wall Is Still Leaking

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  • Bentonite, The World's #1 Waterproofing Material

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    Bentonite, The World's #1 Waterproofing Material

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  • Basement Waterproofing Sealing Cracks

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    Targeting The Wet Areas at a Fraction of The Cost of Drain Tile.

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  • Real Waterproofing on The Outside of The Foundation

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    Real Waterproofing Starts on The Outside of The Foundation

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Drain Tile or Exterior Waterproofing

Interior or Exterior Waterproofing for your Wet Basement?

Minneapolis and Saint Paul Metro Area Customers ask us all of the time, "What are my options for a wet basement?"  For some small basement and foundation leaks, fixing cracks and holes, refreshing window wells and making sure your yard drainage plan is working will work but for a large majority of our Twin Cities Customers with wet basements, a professional waterproofer is needed. 


Two approaches to basement waterproofing are either on the inside of the home or on the exterior.  Water stopped on the exterior is Real Waterproofing, while most interior drain-tile systems are known as water-management since your not stopping the flow through the basement walls.


Interior waterproofing work might be simple concrete patchwork where water is coming through or painting the whole wall with a "waterproofing" paint.  Like a band-aid, this is only a temporary waterproofing solution, the crusty, crumbling wall won't hold the patch or paint and water pressure will push it off.  Interior "waterproofing" paints are said to provide a seal keeping water in the wall but our experience is water pushes large sections of the paint off the wall or even worse case, the wall fills up with water providing a breeding ground for mold, mildow and those nasty musty smells.

STOPPING BASEMENT WATER WITH EXTERIOR WATERPROOFING

Exterior Waterproofing With Bentonite

Great Lakes Waterproofing specializes in exterior basement waterproofing, stopping water before it goes through your walls for Real Waterproofing.  Most waterproofers want to rip out part of your basement floor, install a drain-tile and pump the water back outside  


Using all-natural bentonite, blended for waterproofing, we inject the surrounding ground with a bentonite slurry that looks like chunky oatmeal. Depending on soil conditions, this can be a few gallons up to hundreds.  Filling voids and water pathways, bentonite is a highly effective all-natural matarial that gets a "excellent" rating from HUD as a basement waterproofing material.


Most ground surrounded buildings starts with a foot or two of hard-packed dirt, but under that we usually find much softer, less dense or even hollow ground, this is where water is collecting looking for any opening into your foundation.  Bentonite will find these voids and water pathways, stopping the flow of water on the outside.

DRAIN-TILE INTERIOR BASEMENT WATERPROOFING

Interior Drain Tile Waterproofing System

Drain-tile for basement waterproofing has been around since the turn of the century but until the last 40 years, it was rarely used inside to help with wet basement issues.  Most homes and buildings are built on dry ground so it was unecessary to install drain-tile under the floor when the building was new.


Interior drain-tile waterproofing systems are now one of the most popular ways to manage water but they're not always the best solution.  For poured, stone or rubble walls they are not effective at stopping water that comes in above the floor straight through the basement wall.  For block walls they can work great but over time dirt and silt may clog inside the blocks, on top of that, they don't do anything to stop mold and mildew from growing on the wet blocks.

EXTERIOR WATERPROOFING BY DIGGING A TRENCH AROUND THE FOUNDATION

Trenching Around Home Foundation For Waterproofing

Exterior waterproofing work may include trenching the foundation down to the footings, this is EXTREMELY DANGEROUS and should only be done by professionals using trench-boxes made to OSHA Specifications.  TRENCH COLLAPSE IS THE NUMBER ONE KILLER OF BASEMENT WATERPROOFERS.  


The foundation should be cleaned, cracks repaired and products like a bentonite membrane should be installed on the foundation surface


We do not recommend backfilling with rocks, gravel or other porous materials, this area will collect a lot of water which may create much larger problems than before.  This water will expand and contract with a change in temperature, pushing it's way back into your basement.

FOUNDATION CRACKS AND A WET BASEMENT

Foundation Wall Crack Leaking Water Into Basement

Foundation cracks and holes are the #1 reason why basements get wet, this 1920 home has a vertical crack that goes all the way down to the footing.  In the Minneapolis, Saint Paul Metro Area, cracks like this are fairly normal, this is most likely from movement of the foundation, the corner sinks just a fraction of an inch and cracks develop.


With Great Lakes Exterior Basement Waterproofing, the crack is sealed up permanently, with interior drain-tile, the water still flows through the wall but is now picked up by the system (if your lucky) and pumped back outside.  Would you rather patch the hole on your boat or keep bailing out the water?


When the exterior isn't sealed the foundation can still deteriorate further with more freeze-thaw cycle that has a wedge effect on cracks and holes, over time the holes will become larger and much more water will migrate through.  Sometimes just a small area needs to be waterproofed but most drain tile installers will want to install a system for the entire basement perimeter, tearing out part of the floor and wallcoverings.

THE VINTAGE EXTERIOR DRAIN TILE PIPE SYSTEM

Vintage Exterior Foundation Drain Tile

Drain tile gets it's name from the original drain pipe system used to move water away from foundations.  Years ago, the pipe was clay and made like tiles in an oven.  Over time new plastic materials have replace the original clay pipe.  This exterior clay drain tile system had 1/2" spacing between the 12" long pipe where water would collect and move through the system into the cities sanitary sewer.  


This system has been dug up and the clay tile exposed. During the 80's most cities made homes, businesses and this apartment building, close up the discharge side of the system which drained into the city septic system.  They didn't want the clean rainwater being treated at the treatment plant.

WATERPROOFING LIMESTONE, STONE, AND POURED CONCRETE FOUNDATIONS

Waterproofing Limestone Foundation

Limestone, stone and poured concrete  foundations are perfect for Great Lakes Waterproofing Exterior Real Waterproofing.  A chunky slurry of bentonite is pumped near the basement foundation, filling voids, following water pathways and filling cracks and holes, stopping water from moving through the foundation.


Other methods of basement waterproofing, especially interior systems, are usually not effective, the points of entry are normally above the floor.  The only way to stop this water is to build an interior wall system, made from plastic panels, and allow the water through the wall where it drains down into either a drain-tile or above floor channel before being pumped outside through the sump pump.


We do not recommend this type of system, allowing water through the walls also does not stop any continued damage to the concrete wall.  Mold and mildew love dark, damp areas, providing the perfect breeding ground.

EXTERIOR FOUNDATION WATERPROOFING USING A RUBBER MEMBRANE

Foundation Waterproofing Using A Rubber Membrane

One of the exterior waterproofing methods we've seen is attaching a rubber membrane on the basement foundation starting at grade and going down 3', the membrane is then rolled out towards the yard another 3'-4'.


This can be effective if the water is entering in this area of the wall, our experience is that cracks go from floor to ceiling and the membrane only covers a portion of the crack, water will work it's way around the membrane down to the softer ground under it and enter the crack.  We've worked on many homes that had this material installed and after a handful of years the water has found new pathways around the outer edge.  See how the area looks like it could hold water?  It does and it holds a lot, this water eventually wraps around the membrane back towards the foundation wall.  The soft porous dirt that was backfilled in this area will hold a ton of moisture.


This also requires a lot of work, a large amount of landscaping around the foundation must be removed to install the membrane.  This is Great Lakes Waterproofing's least favorite way to fix water issues.  

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