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
Diagram showing a duct sealing system, with labeled parts including sealing machine, plastic connector tube, foam plugs, and locations where air leaks are sealed.

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.

Excellent
Endless Energy
Based on 604 reviews
Arron came over a couple ago and after cleaning the mini split he suggested that the internal parts be washed out. He showed me the process and it looked quite intensive so I did. Today Arron and co-worker Mike and did the process. Below are the pictures that show how dirty these 3 year old units were and these great hard working, great personality guys worked. I am glad to be a customer of Endless Energy and these 2 great employees and the rest of the company.
Photo from customer reviewPhoto from customer reviewPhoto from customer reviewPhoto from customer review
Tevin is awesome. So honest and kind. He loves his job and does it well . 10 stars for Tevon .
Response from the owner:Thank you so much for your kind words! We’re thrilled to hear that Tevin made such a positive impression on you during your plumbing service. At Endless Energy, we strive to provide exceptional service, and it's great to know that our team is delivering on that promise!
CJ found the problem quickly. He was able to get us up and running except for down mini split. Ordered part, received within a couple of days. CJ came back and installed new part. Now whole system is operating as it should. Thanks, CJ.
Response from the owner:Thank you for the high praise! It's wonderful to hear that you're happy with our service.
Great response, service for smoke installation needed and courteous professionals Repeatedly used this company and haven't disappointed.
Response from the owner:Thank you, C G! We're thrilled to hear you had a great experience with our Electrical Service Team at Endless Energy. Our team always aims to provide courteous and professional service, so your kind words mean a lot to us. We appreciate your support!
Your guys were here yesterday to upgrade the insulation in my home. They did a great job, left the place cleaner than they found it, and even saved me some attic floor space that I expected to lose!
Response from the owner:Thank you so much for your wonderful review! We're thrilled to hear you had a great experience and appreciate your support. We look forward to welcoming you back soon!
Our experience working with Endless Energy was excellent from start to finish. They just installed two heat pumps in a non-profit conservation building in Plymouth. Our sales rep, Nate M., was knowledgeable, thoughtful and really listened to our questions. He responded quickly to email and voice mail. Our building is older and had some quirky additions. I had confidence that Nate's recommended equipment would meet our needs.

The installation team, led by Ethan J., was outstanding. Ethan had to remove an old oil burner that was full of soot - a messy, messy job. They did an excellent job removing the old and installing two new heat pumps - one for a main building and a smaller one for the addition. What impressed me was Endless Energy's depth of staffing - we had 3 installers, 2 electricians, 3 managers (install, QC, & service) on-site reviewing the work in progress.

Because of the soot from the old burner, the techs left footprints on some of the carpet before they put down dropcloths. The install manager saw them and told me Endless would arrange for carpet cleaning. I even received a call from the COO saying she was aware of the soiled carpet and would have someone contact me to set up a cleaning.

When the job was done, QC manager Jeff T. spent over an hour walking us through the operation and maintenance for each heat pump, including tips on how to run them most efficiently. We are thrilled with the new systems. I would recommend Endless Energy to anyone interested in upgrading to a heat pump. They really have their act together.
Photo from customer review
Response from the owner:Linda all we can say is wow! Thank you so much for taking the time to write such a heartfelt review, as a locally owned business this means so much to us! We shared your review to all of our employees applauding their efforts but also as a reminder of why we do what we do! We are so grateful to have you as a customer and wish you years of comfort ahead!
Harim worked exceptionally hard trying to figure out what was wrong with our system. He was able to get the job done in one day. He called in a second set of hands when a problem arised and together they both solved it. Thank you so much for fixing the issue.
Photo from customer review
Response from the owner:Thank you for your kind words! We're thrilled to hear that Harim and his HVAC service team were able to resolve the issue quickly and efficiently. Your satisfaction is our top priority, and we appreciate your trust in Endless Energy!
Great experience with Endless Energy. Huge help and got my AC all set for the hot weather this Summer. R & M were a great pair!
Photo from customer review
Response from the owner:Thank you so much for your kind words! We're thrilled to hear that Rob & Mike provided you with excellent HVAC service and got your AC ready for the summer heat. If you need anything else or have any questions, feel free to reach out - your comfort is our priority!
Excellent service, personable, patient, and efficient.
Photo from customer review
Response from the owner:Thank you so much for your kind words! We’re thrilled to hear that you had a positive experience with our team at Endless Energy. Your satisfaction is our top priority, and we look forward to serving you again in the future!
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.
Photo from customer reviewPhoto from customer reviewPhoto from customer reviewPhoto from customer review
Response from the owner:Thank you so much for your kind words and always being a huge advocate! We're thrilled to hear that Arron provided you with such excellent HVAC service and showcased the values we strive for at Endless Energy. We appreciate your feedback and hope to assist you again in the future!
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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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