Serving Denver Metro, from Fort Collins to Castlerock
24 Hour Emergency Service (303) 732-6616

A brand new, properly designed, and installed duct system operates seamlessly, transporting conditioned air to every room in the home. Over the years, gradual wear and tear start to negatively impact performance. Holes and cracks allow up to 20% of the heated/cooled air to escape and never reach the intended destination. You might not be able to see these imperfections, but you’ll notice them in lots of other ways.

Professional Duct Sealing Service

Higher utility bills, unpleasant odors, diminished comfort, complaints with air quality, and inconsistent temperature from one room to another are indications of leaky ducts. The fully licensed team from Eastside Heating & Air Conditioning, Inc. pinpoints problems with thorough inspection and testing. Our duct sealing process targets flaws at the seams and throughout the entirety of the system, providing a substantial improvement in airflow and efficiency. Contact us at (303) 732-6616 for proactive duct services in Denver Metro, from Fort Collins to Castlerock.

Call our team for your duct sealing needs!

Family owned and operated, Eastside Heating & Air Conditioning, Inc. focuses on the strategies that deliver the most value, enjoyment, and benefit to homeowners across Brighton, Northglenn, Broomfield, Commerce City, Stapleton, Derby, Welby, Todd Creek, Fort Lupton, Dacono, and Firestone, CO. With specialized resources that include an in-house sheet metal fabrication shop, our extensive team of fully licensed contractors is prepared for any challenge with all types of duct systems. Our business motto is Conscientious Quality, and we live up to it in every possible way.

Some reasons to invest in duct sealing from Eastside Heating & Air Conditioning, Inc. include:

  • Comfort – A properly sealed duct system delivers the maximum amount of conditioned air to create more consistent temperature and superior comfort.
  • Energy Efficiency – When flaws in the ductwork allow heated/cooled air to escape, the system is required to work that much harder and consumes more energy, creating a bigger impact on the environment.
  • Healthier Indoor Air Quality – Leaky ducts are the ideal habitat for mold, bacteria and pests, resulting in harmful contaminants spreading into the breathing air every time the furnace or air conditioner operates.
  • Longer HVAC System Lifespan – Duct sealing reduces the workload of components, resulting in fewer major repairs and an extended lifespan.
  • Lower Costs – When the maximum amount of heated/cooled air ends up where it’s supposed to, the system doesn’t need to run as long or use as much energy, providing immediate and ongoing savings.
  • Safety – Because combustion gases exit the home by way of the ventilation system, malfunctioning ducts could potentially vent carbon monoxide and other dangerous gases into your living space.

Duct Repair in Brighton, CO | Duct Sealing Northglenn, CO

Save today with our special offers

All promotions

Military & Senior Discount

2% off up to $10,000

Limit one coupon per purchase. Must present ID at time of service. Cannot be combined with other offers.
Contact us at (303) 732-6616 for more details.


GPS Maintenance - Free Air Cleaner

$999 installed – save $200 over reg price

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Cannot be combined with other offers. Contact us at (303) 732-6616 for more details.


Purify Responsive Ionization Air Cleaner

$2499 installed – save $300 over reg price

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Cannot be combined with other offers. Contact us at (303) 732-6616 for more details.


Tune-Up Special

$99.00 clean & check all safeties

Limit one coupon per purchase. Cannot be combined with other offers. Contact us at (303) 732-6616 for more details.


Reviews & Testimonials

Customer Satisfaction Guaranteed

All Reviews Leave a Review

We had an issue with our A/C unit and Fernando explained all the options up front when I made the service call. Caesar came out and completed the repair. He was upfront, honest and didn’t try to over sell me- which is greatly appreciated. Would definitely recommend.

Erin N.

Had Eastside clean and service my furnace and AC unit today. The technician was very friendly and capable. I have had Eastside come to my house a number of times over the years, for repairs and servicing. Always the same positive experience with very good, honest service and reasonable prices.

Tom S.

It turned out I had a major problem (someone had tried to steal my outside unit and had cut all the lines). East side was awesome, made the time to fix and get it running, and worked super efficiently and were patient with all my questions. I would recommend these guys for sure. Were great to work with.

Adam S.

Ceasar, was on time, professional and knowledgeable. His inspection was thorough, and he kept me updated throughout the process. He was efficient and answered my questions. I would highly recommend this company to anyone in need of heating and/or AC service.

Philip A.

These guys are great and reputable! Almost got scammed by another HVAC company… these guys saves the day!! Don’t buy a new unit until these guys have a look at it.

Cory M.

First time customer of Eastside Heating & Air and we were very pleased. Cesar was friendly, honest, and knowledgeable. Will use again and would definitely recommend based on price and service!

Scott P.

Eastside just checked and serviced my furnace and AC. The technician, Cesar, who came was great; very professional, thorough, and friendly. He didn’t rush through it and addressed the concerns I had. I’d recommend Eastside to anyone.


Duct Sealing Brighton, CO, Northglenn, CO, Broomfield, CO, Commerce City, CO, Stapleton, CO & Derby, CO

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Duct Repair

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Firestone, CO

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