Featured on PBS Ask This Old House
Aeroseal duct sealing has been featured on PBS Ask This Old House and has helped homeowners across North America solve comfort problems caused by hidden duct leaks.
How Aeroseal Seals Hidden Duct Leaks
Hidden duct leaks can make your home less comfortable, waste energy, and force your HVAC system to work harder.
The good news is that Aeroseal is a clean, non-invasive process that seals those leaks from the inside—without opening walls or disrupting your home.
NH Duct Seal helps homeowners and businesses throughout New Hampshire and New England improve comfort, airflow, and energy efficiency with proven Aeroseal technology.
Common Areas Where Duct Leaks Occur
Most homeowners and business owners never see their ductwork, which means small leaks can go unnoticed for years. In fact, many HVAC systems lose conditioned air through loose connections, joints, and seams long before it reaches the rooms you're trying to heat or cool.
Leaks are most common where sections of ductwork connect, change direction, or pass through unconditioned spaces like attics, crawl spaces, garages, and basements. Even small openings in these areas can reduce airflow, increase energy costs, and force your HVAC system to work harder than necessary.
Aeroseal technology seals these hidden leaks from the inside of your ductwork, restoring conditioned airflow where it belongs without opening walls, ceilings, or floors. More heated and cooled air will reach the rooms where you need it most and reduce the stress on your HVAC system.
The result is a more efficient HVAC system, more consistent temperatures, and improved comfort throughout your home or building.
Benefits You'll Notice After Aeroseal Duct Sealing
Too many people live with comfort problems for years without realizing leaking ductwork could be contributing to the issue.
Aeroseal duct sealing can help you enjoy:
-
Less Wear on Your HVAC System
-
Longer Equipment Lifespan
-
A Fast, Non-Invasive Installation
Most Jobs Are Completed in Just One Day
-
No major demolition.
-
Minimal disruption.
-
Little cleanup required.
-
Real-time testing.
-
Before-and-after verification.
-
10-year warranty.
Frequently Asked Questions
Will you cut open walls or perform construction?
No. Our process is non-invasive.
Will there be a mess?
Very little cleanup is required.
How do I know if my ducts are leaking?
Common signs include hot and cold rooms, high utility bills, excessive dust, and uneven airflow.
Will Aeroseal lower my energy bills?
Sealing duct leaks can significantly improve HVAC efficiency and help reduce wasted energy.
How long does the process take?
Most residential projects can be completed in a single day. Commercial projects may take longer depending on the scope of the job.
Can Aeroseal help with indoor air quality?
Yes. Sealing leaks may help reduce the amount of dust and contaminants entering the duct system.
Is Aeroseal safe?
Aeroseal technology has been used in homes across North America and is designed specifically for sealing duct leaks from the inside.
Do you provide Aeroseal duct sealing throughout New England?
Yes. NH Duct Seal serves homeowners throughout New Hampshire and many areas across New England.
What areas do you serve?
NH Duct Seal provides Aeroseal duct sealing services throughout New Hampshire and surrounding New England states, including Massachusetts, Maine, Vermont, Rhode Island, and Connecticut.
About NH Duct Seal
With more than 40 years of experience, Dale Sanford has helped homeowners throughout New Hampshire and New England solve comfort and energy-efficiency challenges.
As a licensed and insured Certified Aeroseal Professional, Dale focuses exclusively on helping homeowners improve comfort and energy performance through Aeroseal duct sealing technology.
Why Choose NH Duct Seal?
-
Over 40 years of experience
-
Licensed and insured
-
Certified Aeroseal Professional
-
Personalized service
-
Serving New Hampshire and New England
