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Serving Englewood, CO and the surrounding areas

(303) 900-4054

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Do You Need Your Ducts Sealed?

If you’re in Highlands Ranch, Centennial, Englewood & Littleton, CO and you want to ensure your ductwork system is sealed properly, Gustafson Heating & Air Conditioning offers quality duct sealing services. Our professionals are all NATE-certified and we guarantee a job that is done correctly every time. Don’t hesitate to give us a call if you are experiencing costly energy bills, hear any whooshing noises from your ducts, or you have trouble with rooms that never seem to feel comfortable. With advanced diagnostic equipment and pressurized duct sealing products, we’ll make sure every single section of your ductwork is completely sealed with no leaks!

Sealed Ducts Provide Efficient, Quality Air Flow

We have proudly served our community with duct sealing and other quality HVAC services since 1971. With our experience, training, and certifications, you can rest easy knowing that the work is in good hands when you hire us. Give us a call at (303) 900-4054 for a free quote!

Did You Know?

Roughly 25% to 40% of energy is lost through the ductwork in homes that use ducted HVAC systems.

Frequently Asked Questions:

Q: What can I learn from the Air Duct Diagnostic and Inspection?

A: The inspection will help determine if there are any problems with the ductwork system. The Air Duct Diagnostic will show the precise amount of leakage coming from the duct system.

Q: What savings can you expect?

A: According to government reports, air duct sealing can permit up to $850 in energy savings annually. Some homeowners can actually save around 40% on their energy bill. Aeroseal air duct certified experts have the qualifications to run a program created by the Environment Protection Agency known as “Duct Investor”. This program takes into consideration a comprehensive list of variables, allowing the homeowner to have a good idea of how much they can save.

Q: In layman’s terms, how does an Aeroseal air duct seal actually work?

A: There will be a preseal test used as a baseline to measure progress. The registers must be blocked with foam or plastic. The UL tested and approved aerosol will be injected into the system. With no other places for the sealant to go, it will find duct holes or cracks and plug up the leaks. There will be a postseal test to check for all improvements with the functionality of your ducts. A full report and certificate will be printed showing the official record of improvements.

Q: How large can the holes be in the ducts that will be sealed by the Aeroseal air duct sealing process?

A: Cracks or holes up to 5/8th of an inch can be entirely sealed during this process.

Q: Does the air duct sealing material become weak or brittle?

A: The sealing material is vinyl with a rubbery texture and will never crack or break.

Q: How long can you expect the air duct sealing material to last after it is applied?

A: Through a rigorous testing process, we have come to find it will last a minimum of 10 years without failing.

Q: Should the ducts be cleaned before initiating the air duct sealing process?

A: In most cases, this is not necessary. However, your aeroseal contractor will let you know if cleaning is necessary for your particular situation.

Q: Will the inside of the ducts be coated with the sealant?

A: Only the holes in the ducts will be sealed by the sealant, it’s designed to stick to the holes to seal them properly.

Q: Is Aeroseal air duct sealing material safe?

A: The sealant is made up of approximately 65% water before it is applied. The dried material has two chemicals known as vinyl acetate polymer (VAP) and 2-ethyl-1 hexanol (2E1H). Most of what will be left in the ducts is VAP which has been used in all types of water-based paints, hair sprays, and certain adhesives. It has also been used in chewing gum and there is no OSHA Exposure limit for this particular chemical. 2E1H also is not considered toxic by OSHA. This sealing material is considered safe through rigorous testing.

Q: Is there an odor left behind from this sealant?

A: There will be no odors left behind for the whole life of the product.

Q: Can Aeroseal improve the performance of my HVAC equipment?

A: Aeroseal will help improve the performance of your HVAC considerably by stopping all the leakage and preventing energy loss.

Q: Can I expect lower energy bills with Aeroseal air duct sealing?

A: Most homeowners should expect to see a significant reduction in energy expenses. Some homeowners report up to 40% on savings with their energy bills.

Q: Will noise from the return and supply vents be reduced with Aeroseal air duct sealing?

A: This noise typically comes from rushing air through undersized ductwork or if there is a limited amount of air flowing through the indoor coil of your HVAC system. Your local HVAC professionals can help you determine the best way to reduce noise levels.

Q: Can I expect less dust built-up in my home with Aeroseal air duct sealing?

A: When there are leaky return ducts, they will pull all sorts of dust and other indoor contaminants that will inevitably return back to the HVAC unit and they will be redistributed in your home. Aeroseal air duct sealing will reduce leakage up to 90%, ultimately reducing dust and other contaminants in your home significantly.

Q: Can I get my money back if Aeroseal air duct sealing doesn’t work? Is it guaranteed?

A: There is a 10-year warranty provided by Aeroseal when their process is used. Aeroseal air duct sealing has been endorsed by The Environmental Protection Agency and we have full confidence in this product. Of course, the warranty is for on-site seal failures and does not cover additional damage from accidents, general wear and tear, damage from rodents, or subsequent replacement of failed ducts. Even so, the number of warranty claims has been minimal.

Serving Highlands Ranch, Englewood, and surrounding areas

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Duct Sealing Service & Ductwork Sealing Englewood, CO, Littleton, CO, Highlands Ranch, CO, Centennial, CO, Wheat Ridge, CO & Arvada, CO

HVAC Services in Englewood, CO | Duct Sealing Service Littleton, CO

HVAC ServicesResidential HVAC ∴ Highlands Ranch, CO ∴ Wheat Ridge, CO ∴ Arvada, CO

Special Offers

Put your worries behind and work with the local experts, Gustafson Heating & Air Conditioning Inc.

More special offers

$150 Off Modifications to Duct Work (for better air flow)

Offer cannon be combined with any other offer. Limited to (1) offer per household, per service call. Additional restrictions may apply, call for more details. Management reserves all rights.

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$50 Off Any Humidifier

Offer cannon be combined with any other offer. Limited to (1) offer per household, per service call. Additional restrictions may apply, call for more details. Management reserves all rights.

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$100 Off Indoor Air Quality Product

Offer cannon be combined with any other offer. Limited to (1) offer per household, per service call. Additional restrictions may apply, call for more details. Management reserves all rights.

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Customer Reviews

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Gary W.

WOW, what a great job Gustafson Heating and Air Conditioning did for my wife and I. They were professional, fast, and way less expensive than the others we looked into. We really appreciate what they did. It was in the winter when our furnace broke down and they replaced it immediately. They left our home clean and warm and we will appreciate the cool air this coming summer. THANK YOU Mike and your team!

Kristina C.

I received a number of quotes to install a whole home humidifier. Gustafson was amazing from start to finish. I was able to handle everything over the phone without needing an additional in-person quote with a number of upcharges. I spoke to a gentleman who walked me through options by seeing pictures of my setup and was extremely knowledgable on what was necessary to ensure I was getting the correct humidifier for my home. The pricing was extremely competitive compared to the others and was not full of hidden charges. When I called, they were able to get an appointment set up within a week. The service tech was on time, courteous, cleaned up after himself, and walked me through the whole setup.

Svein R.

I got three quotes for a heat pump and gas furnace back-up. Gustafson’s was the most competitive. In addition, Mike McCarthy was, and is, a gem; very knowledgeable and responsive. The other Gustafson employees on the job were courteous and professional. I am very pleased with the equipment and the installation, which was a difficult one. I highly recommend Gustafson!

Meagan P.

Gustafson installed our HVAC system in 2019 and have been so great with service! They’re honest and back up their work. Recently our A/C wasn’t cooling to the set temp. Todd was so kind & diligent in teaching us what to do as homeowners, but also servicing/cleaning the mechanics and we’re back to a nice, cool home just in time for higher temperatures!

Scott H.

Purchased a mini-split (AC / Heat Pump) unsure if I’d be able to install it or not. I installed most of it myself but there were a few technical procedures I didn’t have the expertise or tools to undertake. Dillon came out and finished the job, doing top-notch work and taking in account the aesthetics of the unit inside and out. Very reasonable price as far as I’m concerned. My new go to neighborhood HVAC company.

David R.

Basement flooded. This is where my WFH office is, so it was a big deal. Gustafson sent out Todd to fix it. He got it fixed quickly, and charged me a very reasonable fee. Basement is warm and dry now. I can’t say enough good things about Gustafson.

Steven B.

The technician “Luis” was fantastic as usual. All the services and technicians we have used with Gustafson over 12 years have been prompt, professional, timely and reasonable over the years. I definitely approve of this vendor!!!

William R.

Our furnace went out and our regular company gave us a 2 week window for coming out. We have a RHEEM furnace and needed an authorized RHEEM dealer. I called Gustafson and they came out in 48 hrs. They were so nice and the technician –Dylan–was so helpful that I am switching companies. Really a great experience.

Sonja L.

Absolutely the best!!!! This is an honest company with very professional people working for them. The price for all work is always very fair and very reasonable!!!

Krista B.

I had the whole HVAC system installed by Gustafson about three years ago and recently requested maintenance on the system. Technician Robert Gomez was the tech that responded and he was very personable, easy to talk to, and explained what he was doing to me to service my furnace. I felt like I received thorough service and he provided advice for the future as well. Thank you, Robert!! I hope to be able to request you again in the future to do maintenance on my AC next spring.

Code of Ethics:

  • Providing services at or above accepted industry standards
  • Providing exceptional customer service and supportive, long-term
  • relationships with our customers
  • Ensuring that Honesty and Integrity are the hallmark of all of our business practices and services
  • Improving through continuing education and training

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