GreenCat tech inspecting air duct

High energy bills? Dealing with respiratory issues?

Talk to Greencat about air duct sealing today!


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Leaking or damaged ductwork can cost you money, leave your home less comfortable, and introduce air pollutants into the air you breathe inside! With air duct sealing services from Greencat, you can help create a more energy-efficient and healthy HVAC system in your home. Our company serves all of California, including Los Angeles, Orange, Western Riverside, and Western San Bernardino Counties.

Signs You Need Duct Sealing

  • Lots of dust in your house, particularly near vents

  • Indoor air quality-related respiratory health issues

  • Indoor musty smell

  • High energy bills

  • Uneven temperatures throughout your home

The Benefits of Air Duct Sealing

  • Helps keep air pollutants out of your ductwork

  • Reduces energy waste

  • Creates more even home comfort

The negative effects of ductwork with leaks or gaps depend on whether the holes are on the supply line (the side that delivers conditioned air into your home) or the return side (the side that draws air back to your air conditioner or furnace to be reconditioned).

If the holes are on the supply side, then you’ll be wasting energy, as conditioned air will likely be escaping through your holes before reaching your living spaces. If the holes are on the return side, then you’ll be pulling in air from your attic or other unfinished spaces, where there is likely to be dust, animal waste, and other pollutants that can create unhealthy air and indoor air quality issues.

Plus, leaking ductwork can create uneven temperatures throughout your home, as some rooms or areas of your house will struggle to receive as much conditioned air as others. Properly sealed ducts keep your ductwork and the air circulating in your home cleaner and more comfortable.

Is Duct Sealing Worth the Cost? Will Duct Sealing Save You Money?

According to ENERGY STAR, the average home loses 20 to 30% of the air moving through its duct system due to leaks, holes, and poorly insulated ducts, reducing the heating or cooling system’s efficiency by as much as 20%.

Faulty ductwork leads to month after month of higher heating and cooling bills, which is why heating and air conditioning duct sealing is necessary and can make a big impact on your energy costs. How much would you save every year if the cooling bills for your California home were 20% lower?

Schedule Ductwork Sealing Today With the Greencat HVAC Experts

Could your home benefit from duct sealing? Ductwork is often hidden away in attics, behind walls, and in other hard-to-reach areas of your home, which can make it hard for the average homeowner to confirm there’s a problem. That’s where the whole-home experts from Greencat can help. You tell us the symptoms you’re experiencing in your home, and we’ll trace the problems back to their source. Our duct services include sealing, full duct replacement, weatherization, and more.

Stop wasting energy and make your home healthier and more comfortable. Call 323-208-9071 or contact us today for a free air duct sealing quote from the pros at Greencat.

What Our Customers Are Saying About Greencat

  • Very hardworkers, professional and nice, did the work without any problem. Great customer service, neat. I would use their service again and would refer them to friends and family.

    - Temeka L.
  • Thank you so much. Service that was provided was done excellent. Very happy and satisfied.

    - Teresa P.
  • I was very happy to see and talk to the men who came to do the work on my attic. They were kind, respectful and quick. Answered all my questions and were efficiently working throughout the whole time. Very nice. I am so happy I had this done. Thank you!

    - Stephanie A.
  • I thank you for your service. Your guys did a great job!

    - Salvador C.
  • The service by Greencat is a great way to improve homes. The service received today by Victor and Jose was awesome. They were very pleasant, friendly and explained the process, and answered all our questions.

    - Rudy G.
  • Enrique and Edgardo arrived on time and were very very friendly, polite and respectful. They went right to work, did an amazing job and cleaned everything up and left it better than it was before!

    - Patricia G.
  • I love your company, Greencat. The workers are nice and hard working. They explained work in detail. They completed work nicely. They took care of my place. Thank you.

    - WooJoung K.
  • Greencat come to my home early and prepared to get the service done in a timely manner. They were professional, polite and did a great job prepping and cleaning up afterwards. I am thankful I decided to move forward with the services.

    - Marguerite H.
  • Greencat came to my home today and did a great job in my home. The techs were fast and professional. I'm excited for my home to be more cozy in the winter and fresher in the summer. Thank you!

    - Sagrario S.
  • The guys that came by today from Greencat were very professional, polite and fast. The work was clean and they answered any question I had. Thank you Greencat!

    - Erica S.
  • You guys did a wonderful job. Thank you guys for not leaving a mess. Also for being nice to us. Overall, I love you guys. Job is 10 out of 10 rating.

    - Jonathan C.
  • The techs that came in and did the installation did a really good job. Quick, clean, professional. It couldn't have been better. We'd recommend them to others!

    - Andres C.
  • Thank you for your service and professionalism. I appreciate the work you guys have done for us. Great service!

    - Alejandra B.
  • We are very pleased and thankful and also with your great staff in completing the job. Very nice, professional and respectful. 

    - Luis A.
  • The service was great. It was fast and easy. They arrived early and were kind. This service will allow our home to be cooler during the summer. It is great.

    - Leticia S.
  • Thank you so much! Our house runs super hot and cold in the winter. Your workers who came to gate were excellent. Within minutes the truck pulled up, both employees ready to do their job. Fast and efficient. Friendy and polite. Thank God for this program.

    - Jody L.
  • Greencat is a great company, the service they are giving us is perfect. The workers are very polite and out-going. They came and finished very fast. Just want want to thank them for taking their time to come out today. We really appreciate it.

    - Julio A.