Aeroseal Duct Sealing in Massachusetts

Put your Ductwork to Work

Properly sealing ductwork can save you 20-30% on your utility bills! Keep the air you’re paying for indoors with Aeroseal! The non-toxic, non-destructive way to improve your HVAC system’s heating and cooling efficiency!

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Aeroseal Service includes:
  • Pre-Aeroseal duct air loss assessment
  • Minor duct cleaning to ensure sealant is able to be applied fully
  • Aeroseal product will be sent through ducting, sealing 95% of all air leaks
  • After-Aeroseal duct air loss assessment to ensure product efficacy
  • Optional preventative HVAC maintenance at reduced cost if scheduled for the same day
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Aeroseal FAQs

What is Aeroseal duct sealing?

Aeroseal is a patented duct sealing process that sends a non-toxic polymer sealant through your ductwork, sealing up to 95% of air leaks from the inside without cutting into walls or ceilings. It’s the most effective way to stop conditioned air from escaping before it reaches your living spaces.

How much can Aeroseal save on my energy bills?

Properly sealed ductwork can reduce your heating and cooling costs by up to 30%. Most homes lose a significant portion of conditioned air through leaky ducts, so sealing them is one of the highest-impact improvements you can make to your home’s energy efficiency.

How do I know if my ducts are leaking?

Common signs include rooms that are hard to heat or cool, high energy bills despite normal usage, excessive dust on vents or furniture, and inconsistent temperatures throughout the home. Endless Energy performs a pre-Aeroseal air loss assessment to precisely measure how much air your ducts are losing before any work begins.

How long does the Aeroseal process take?

A typical Aeroseal treatment takes 4–8 hours from start to finish, including the pre-treatment air loss assessment, the sealing process itself, and the post-treatment verification to confirm effectiveness.

Is Aeroseal safe for my family and pets?

Yes. Aeroseal is non-toxic and has been tested and certified for use in residential HVAC systems. The sealant is the same type of polymer used in common household products and poses no health risk to people or pets.

How long does Aeroseal last?

Aeroseal carries a 10-year warranty and is tested to maintain its seal for 40+ years under normal operating conditions, making it a long-term solution rather than a temporary fix.

What's the difference between duct sealing and duct cleaning?

Duct cleaning removes accumulated dust, debris, allergens, and contaminants from inside your ductwork to improve air quality. Duct sealing (Aeroseal) closes the gaps and leaks in the ducts themselves to prevent conditioned air from escaping. Endless Energy offers both services, and scheduling them together on the same day qualifies for a reduced rate on preventative HVAC maintenance.

How Much is Aeroseal duct sealing?

For a standard size residential ducted system, Endless Energy offers Aeroseal at $2,999 for the first system and $1,899 for additional system. Zoning and other nonstandard setups may result in additional costs.

Consider Adding Full Service Duct Cleaning

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Improved indoor air quality

Cleaning the ductwork removes pollutants like pet dander, dust, chemicals, and pests, enhancing the air you breathe and protecting your family’s health.

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Increased HVAC unit efficiency

Removing dust and debris from the ducts allows for better airflow, optimizing the performance of your HVAC system and reducing energy consumption.

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Elimination of odors

Cleaning the ductwork removes pollutants like pet dander, dust, chemicals, and pests, enhancing the air you breathe and protecting your family’s health.

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Reduction of irritants

Regular duct cleaning prevents allergens and microorganisms from circulating, improving air quality and reducing allergic symptoms and asthma attacks.

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Prolonged lifespan of HVAC unit

Cleaning the ductwork prevents strain on the system, reducing breakdowns and extending the lifespan of your HVAC unit.

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Longer-lasting air filters

Regular duct cleaning reduces dust accumulation, extending the lifespan of your air filters and reducing the need for frequent cleaning or replacement.

Read our 5-star reviews on Google.

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Based on 597 reviews
Arron from the great company Endless Energy came to service my mini splits and was nothing more than a complete gentlemen, thorough, knowledgeable, cleaned up all his work and Endless Energy how is it should be very happy to have him as an employee.
Hiram was professional and courteous!
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Response from the owner:Thank you so much for your kind words! We're thrilled to hear that Hiram provided you with a professional and courteous HVAC service experience. At Endless Energy, we strive to deliver exceptional service, and your feedback means the world to us!
Endless Energy technician, Aaron Smith, and I at the conclusion of his mini-split maintenance service. He was pleasant, efficient and intelligent, who took care to make sure I knew what work he would be doing on the system and what the results of his service would show about the performance our system! His work left me confident that our mini-splits would perform admirably this summer, and hopefully, many more summers to come!
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Response from the owner:Thank you so much for the fantastic review, Tony! I'm glad to hear our technician made a great impression by being both friendly and professional. We're happy to know he left everything in top shape for you!
Had a Home Energy Assessment, no complaint, very through and respectful of property
Response from the owner:Thank you for your kind words! We're thrilled to hear that you had a positive experience with during your Mass Save Home Energy Assessment. Our team takes pride in being thorough and respectful, and we appreciate your feedback!
Hiram came very quickly to perform the repair and he was very friendly and helpful
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Response from the owner:Thank you so much for your kind words! We're thrilled to hear that Hiram provided prompt and friendly service during your HVAC repair. Your satisfaction is our top priority, and we look forward to assisting you again in the future!
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Response from the owner:Thank you so much for your kind words! We're thrilled to hear that you had a great experience during your AC maintenance. Your support means the world to us!
Very pleased with Eydin work. Very professional and very knowledgeable.
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Response from the owner:Thank you so much for your kind words! We're thrilled to hear that Eydin's professionalism and expertise made a positive impact on your AC maintenance experience with Endless Energy. We appreciate your support and look forward to serving you again!
My guy Hiram came today to service my HVAC unit. Loved him!! He was professional and efficient. Explained my system to me and helped me to understand what problems I could have. He recommended for me to change my capacitors. Thanks Hiram!! Thanks Endless Energy.
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Response from the owner:Thank you so much for your kind words! We're thrilled to hear that Hiram provided you with professional and efficient service while helping you understand your HVAC system. Your satisfaction is our priority, and we appreciate your trust in Endless Energy!
Hiram was a great help. He was punctual and efficient. He was able to quickly diagnose and resolve the problem, and was extremely kind and courteous.
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Response from the owner:Thank you for your kind words! We're thrilled to hear that Hiram provided you with prompt and efficient service while maintaining a friendly demeanor during his HVAC service visit. Your satisfaction is our top priority, and we appreciate your feedback!
CJ did a good kid diagnosing the problem and implementing a fix. The problem was a furnace exhaust line that was freezing up when very cold outside. He verified the pitch of the line was correct. He insulated 15’ of exhaust pipe in the attic. He also applied insulation to a return line from the living room to the furnace. Also in the unheated attic space.
Response from the owner:Thank you for your kind words about CJ's work during his HVAC service visit! We're thrilled to hear that he effectively diagnosed and resolved the issue with your furnace exhaust line. Your comfort is our top priority, and we appreciate your trust in Endless Energy to keep your home running smoothly!
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Diagram of a two-story house showing HVAC duct system airflow and temperature, with an inset highlighting reduced duct leakage from 361 CFM to 17.6 CFM after sealing

Keep Cool with Endless Energy

Keep your home cool while it counts with energy efficient heat pump technology!

Cool Down with Heat Pumps

  • No lugging those bulky AC window units to and from storage this year!
  • Heat Pumps operate 40% more eiciently than traditional air conditioning units. This saves you money on your utility costs!
  • Available rebates up to $10,000!*
  • 0% Financing options available with the Mass Save® Heat Loan*

*Eligibility requirements apply

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