Crawl Space Waterproofing

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Crawl space encapsulation, which is essentially wrapping or sealing the crawl space, effectively keeps away unwanted moisture from the foundation of your home. Many homes have their HVAC equipment positioned in the crawl space. And if your home in Portsmouth, Dover, Barrington or Durham, NH is one of these, you probably have ventilation issues there. Originally, these vents were intended to boost airflow, mitigating the growth of mold. However, the vents inadvertently let in more moisture, which leads to challenges like water condensation forming on the cooling ducts. Such conditions not only decrease the energy efficiency of your HVAC unit, they also create a moist environment, which attracts insects, allows for mold growth, and can create poor indoor air quality.


The solution to excessive moisture and all the issues that come with it is crawl space encapsulation. The crawl space waterproofing experts at NH Dry Basement begin by discarding any old and worn-out plastic sheets on the ground, then carefully remove and dispose of old insulation. Our skilled team then installs vapor barriers, wall curtains, and ground liners, and ensures every crawl space vent is securely sealed from the inside. For added protection, we can even install a top-tier, energy-efficient crawl space dehumidifier.


Making your crawl space airtight and enhancing the circulation quality for your HVAC system ensures your home remains less vulnerable to pests, adds value, and increases the performance and efficiency of your HVAC unit. It can also prevent water damage, which can be detrimental to the structural integrity of your home near Dover. Contact our knowledgeable basement ventilation specialists at NH Basements to discover the many ways our services can safeguard your crawl space.

Effective Crawl Space Defense

Trusted Service by NH Dry Basement


For over 20 years, NH Dry Basement has been a trusted company for crawl space repairs and waterproofing solutions in the Dover, NH, community. We've assisted countless homeowners with ensuring their foundations, basements, and crawl spaces are waterproof and secure. When you choose our crawl space encapsulation services in Portsmouth, Dover, Barrington & Durham, NH, expect a transparent and no-nonsense approach. Our team will evaluate the condition of your crawl space and recommend a sensible, cost-effective solution for your property. Our commitment is to quality, clarity, and a dedication to protecting your home. Connect with NH Dry Basement today to request your free inspection!

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