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Serving New Hampshire and Massachusetts

Showroom Hours

Mon - Fri 10am to 3pm
Saturday - 10am to 3pm
Sunday closed


531 Front Street
Manchester NH

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Serving New Hampshire and Massachusetts

Request Service: 800-736-2706


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    Duct Sealing & Insulating

    Having improperly sealed and insulated ducts connected to your HVAC system can increase your energy bills, make room temperatures inconsistent, and potentially create unsafe conditions. Armstrong Duct & Vent provides duct sealing and insulating services that can make your home or workspace more comfortable and increase the efficiency of your HVAC system. We seal your ducts using approved HVAC insulation, mastic sealant, and metal tape. Connections at vents and registers are checked to ensure proper fit and air leaks are addressed.

    Contact Armstrong Duct & Vent or call us at 1-603-627-7016 or 1-617-651-1937 to learn more about our Duct Sealing and Insulation Services.

    LEARN MORE ABOUT Duct Sealing & Insulating
    REQUEST SERVICE: 800-736-2706

    Benefits of duct sealing and insulating

    Cost Savings: Many ducts are routed through attics and basements, which are subjected to varying temperatures season to season. As much as 10% to 30% of the energy used to heat or cool air in the ducts can be lost through conduction of the air surrounding the ducts. Sealing and insulating the ducts can drastically improve the energy efficiency of your system and reduce your energy costs.

    Safety: Leaky ducts can cause backdrafts within your HVAC system. These drafts can expel carbon monoxide and other fumes from your fuel-burning appliances back into your living area or workspace, creating a potentially deadly situation.

    Comfort: Some HVAC systems are prone to hot and cold spots. These “spots” can be prevented or controlled by sealing the ducts to keep the conditioned air on its proper course. Leaking ducts also may introduce unwanted odors, allergens, airborne pollutants, and moisture into the system. For proper air distribution, duct sealing is still beneficial when ducts are located in conditioned areas of a home or business.

    Extended Equipment Life/Smaller Equipment Needed: Sealing and insulating the ductwork enables the HVAC system to work much more efficiently, reducing the size of the equipment needed. This helps keep the system cost and ongoing energy costs lower.

    Improved Humidity Control: When leaky systems pull in air from unconditioned spaces, the air likely is not at the humidity level the HVAC system is trying to achieve. Increased humidity levels can contribute to the growth of mold and mildew within the HVAC system. This may result in an unhealthy indoor air environment and added stress on the evaporator coils, which can lead to early system failure and increased energy costs for excessive operation.


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    Duct Sealing & Insulating

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