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

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

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.

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.

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.

Reduction of irritants

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

Prolonged lifespan of HVAC unit

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

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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Endless Energy
Based on 559 reviews
Eydin was very professional and helpful.
Marcus did a great job and gave us detailed information after our energy assessment. Helpful and very knowledgeable. Recommended.
Response from the owner:Hi Jim, thank you for the kind words about your Mass Save Home Energy Assessment and trusting us!
I called Endless Energy to ask for a quote for some plumbing work and everyone I spoke to on the phone was kind, professional and efficient. Josh and Peter came out exactly at the time they were scheduled and were polite and professional. Josh was extremely knowledgeable and spent time understanding my plumbing concerns and explaining everything to me and detailing the process for completing the repairs. He sent me a detailed quote and gave me a timeline for getting the parts needed. Josh and Peter came out for the repairs right on time and did an excellent job. They made sure everything was working perfectly and cleaned up once repairs were completed. I could not recommend them more!
Response from the owner:Thank you so much for your kind words. We're glad our expert plumbing team was able to assist you with your repairs and that our team was responsive. If you need anything else, please let us know!
Just a Wonderful Company that installed a Heat Pump with two Splits.
In addition, Technician Eydin Gomez has been to my home twice recently and has performed exceptional work in making my Oil Burner and Heat Pump perform very well.
I appreciate his hard work and expertise.
Response from the owner:Thank you so much for your kind words, Bob! We’re thrilled to hear you had a wonderful experience with Endless Energy. It's fantastic that you’re enjoying your new heat pump system. Your satisfaction means everything to us! If you ever need assistance, please reach out.
Brad, the account manager, was timely in responding to my many questions and sending quotes to match my requests. Very courteous, professional, organized implementation crew led by Hunter and his helper Shameel and the rest of the crew that came on day 2. This included moving, without complaint, the location of one of the units which made me very happy.

Update: CJ came to provide annual maintenance in April 2026. He was polite and tidy in his work. Also, he was patient with my repeated questions about ice that had built up on the unit over the winter (which turns out is not a problem).
Response from the owner:Ellen, thank you so much for your kind words and for taking the time to share your experience with Endless Energy! We're thrilled to hear that Brad was able to assist you promptly and professionally, and that Hunter, Shameel, and the rest of the crew exceeded your expectations during the installation.

It’s great to know that the team was able to accommodate your request to move the unit and that it brought you satisfaction. Our goal is always to ensure that our customers are happy with both the process and the final results.

If you need anything else in the future or have any more questions, please don’t hesitate to reach out. We’re here to help!
I got a MassSave inspection. It was great, what was being checked and the suggestions were all all described to me very clearly.
The technicians were early, very professional and knowledgeable. Such happy easy demeanor. Very quick and efficient in their job. Really enjoyed talking to them about any issues I was having and any future problems I may have.
Eyden's service today was great. He was polite, courteous, and knowledgeable. Five stars.
He was really great at explaining everything
Eydin and James did our annual AC maintenance and once again they did a great job. They are always on time, very professional in doing the work as well as very informative and pleasant to work with. We highly recommend to whoever needs this service.
Response from the owner:Thank you so much for the glowing review, Tom! We're thrilled to hear that Eydin and James provided you with excellent AC maintenance at Endless Energy. It means a lot to us that you found them professional and pleasant to work with. Your recommendation truly makes our day! If you ever need our services again, we're always here to help.
Keep Allergens Outside
Aeroseal infographic - how it works using a home diagram

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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