Exterior Foundation Waterproofing Systems

When it comes to protecting your structure from long-term water damage, exterior foundation waterproofing is the first and most critical line of defense. At 1 Dry Basement, we provide professional residential and commercial waterproofing solutions that are built to last—because keeping water out is always better than dealing with it after the fact.  

Exterior Waterproofing: Stop Water Before It Enters  

Exterior waterproofing involves sealing the outside of your foundation to prevent moisture from ever reaching your basement or crawlspace walls. This method is especially effective for new construction, but it can also be retrofitted on existing homes and buildings where water intrusion is a recurring problem.  We use a combination of modern sheet membrane systems, liquid-applied waterproof coatings, and foundation drainage to fully protect below-grade walls. 

Our process includes:  

Excavation around the foundation perimeter  Cleaning and prepping the foundation walls  Application of a self-adhering sheet membrane or liquid rubber waterproofing  Installation of a drain board or dimple mat for added drainage  Application of 2" rigid foam board insulation for protection and energy efficiency  Finishing with a French drain or footing drain system connected to a sump pump or daylight discharge   This layered system ensures that water is not only blocked but also redirected safely away from your foundation.  

Our go-to products include 

Henry Blue Skin Waterproofing Membrane, GCP Bituthene 3000, and Blueskin WP200, along with heavy-duty drainage boards. These materials are proven to withstand hydrostatic pressure and long-term exposure to moisture, making them ideal for both residential and commercial applications.  Whether you're dealing with hydrostatic pressure, surface runoff, or poor grading, our exterior foundation waterproofing services are customized for each property’s specific needs.