Basement Waterproofing in Conway, New Hampshire, by Matt Clark's Northern Basement Systems

Challenge

A homeowner in Conway, New Hampshire, contacted Matt Clark’s Northern Basement Systems after years of dealing with persistent moisture problems in their crawl space. Every spring and after heavy rainfalls, water would pool along the ground and create a damp, musty odor throughout the home. The insulation had begun to sag, the wooden joists showed signs of humidity damage, and the homeowner noticed higher-than-usual energy bills, with the HVAC system working overtime to combat the moisture-laden air. They wanted a long-term solution that would eliminate water issues, improve air quality, and protect their home's structure from further damage.

Solution

A certified crawl space specialist from Northern Basement Systems performed a full inspection of the area. The crawl space had an uneven dirt floor and lacked any proper vapor barrier or drainage system. Groundwater seepage was visible, and the existing sump pump was outdated and unreliable. The inspection confirmed that the space needed both encapsulation and drainage upgrades to prevent further water intrusion. After assessing the conditions, the team designed a custom repair plan using the industry’s best-performing systems for waterproofing and humidity control.

To transform the crawl space into a dry, energy-efficient, and protected environment, Northern Basement Systems installed a comprehensive system consisting of:

• CleanSpace® Crawl Space Encapsulation System: A durable, 20-mil vapor barrier was installed over the entire crawl space floor and walls. This bright white liner completely seals out ground moisture, creates a clean, finished look, and channels any seepage toward the sump system.

• TripleSafe® Sump Pump System: To keep the space dry year-round, the team installed a TripleSafe system—featuring three levels of protection: a primary pump, a secondary pump, and a battery backup for added peace of mind during power outages.

• Drainage Matting: Placed beneath the CleanSpace liner to help channel water toward the sump pump, preventing seepage beneath the liner from becoming a problem.

• Discharge Line and IceGuard® Protection: A new discharge line was routed to carry water away from the foundation, complete with an IceGuard fitting to prevent freezing or blockages during Vermont’s cold winters.

After completion, the homeowner’s crawl space was completely transformed. The once-damp and musty area is now clean, bright, and dry. The TripleSafe sump pump ensures that any future water intrusion is quickly removed, while the CleanSpace system prevents moisture and vapor from entering the air. The homeowner immediately noticed a difference in air quality, and their home’s floors felt warmer and more comfortable. With the encapsulation and sump system in place, the crawl space is now protected for the long term—backed by the industry-leading warranty and the trusted expertise of Matt Clark’s Northern Basement Systems. This Conway, New Hampshire, crawl space project demonstrates how a combination of CleanSpace encapsulation and the TripleSafe sump system can solve even the most challenging moisture problems. The home is now healthier, more energy-efficient, and permanently protected from water intrusion.