Basement Waterproofing in Gilsum, New Hampshire | Matt Clark's Northern Basement Systems
Challenge
A homeowner in Gilsum, New Hampshire, was dealing with persistent moisture along the base of their stone foundation. Water intrusion had been occurring over time, leaving visible stains on the floor and lower walls. The basement would take on moisture during heavy rains and seasonal changes, creating an environment that felt damp and unreliable.
Upon evaluation, it was determined that groundwater was accumulating outside the foundation and seeping through the natural gaps and joints in the stone wall. The water was entering at the wall-to-floor joint and spreading across the basement floor. The issue was not tied to a single crack or failure point, but rather to consistent pressure and the foundation's natural permeability.
Solution
To properly manage the water intrusion, a comprehensive interior waterproofing system was installed, including:
- WaterGuard® perimeter drainage system
- TripleSafe® sump pump system
- CleanSpace® wall system to manage wall moisture
- IceGuard® discharge protection system
- LawnScape™ outlet for proper exterior drainage
The system now captures water as it enters and directs it safely away from the home before it can reach the basement floor. The space is dry, consistent, and no longer affected by changing weather conditions. The homeowner now has a long-term solution in place designed to handle ongoing groundwater pressure and protect the basement moving forward. Basements in areas like Gilsum, New Hampshire—especially those with older stone foundations—often experience water intrusion due to natural groundwater pressure. Installing a properly designed waterproofing system ensures the problem is controlled at the source, providing a reliable, lasting solution rather than temporary fixes.
