Exterior waterproofing is the only true waterproofing solution for a leaky basement. Meaning, it’s the only solution that actually prevents water from entering the basement. The amount of pressure exerted by the water is too great for any interior seal to handle. Exterior waterproofing requires excavating next to the foundation, removing the dirt to the base of the footing, applying a waterproof membrane and a protective insulating layer. Sometimes this can be done in conjunction with a French drain installed next to the footing.
That being said, while it’s a great waterproofing option it’s not always the practical solution. Many areas of the house can be inaccessible to exterior waterproofing due to garages, crawlspaces, hardscaping etc. Also, costs are higher than interior pressure relief systems. The only way to know for certain what the best option for you is to contact us and allow us to assess your particular issue.
EXTERIOR BASEMENT WATERPROOFING
Exterior Waterproofing – This is when the exterior of a home or building is excavated down to the footings. Depending on the issue weremedy this with a combination of foundation sealers, waterproof membranes and exterior French drains.
INTERIOR PRESSURE RELIEF SYSTEM (FRENCH DRAIN)
Interior PRS (Pressure Relief System) – This solution involves installing a drain around a full or partialperimeter of the basement and works in conjunction with a sump pump. The sump pump then pumps the water a safe distance awayfrom the foundation of the home.
(Note: These systems can be either full perimeter or partial depending on your needs.)
At Main Line Waterproofing we can explain the ins and outs of both exterior basement waterproofing and Interior Pressure Relief Systems and see which method, if either, is right for you.