Duct Repair, Duct Maintenance & Duct SealingChicago, IL, Park Ridge, IL, Evanston, IL, Wilmette, IL, Niles, IL & Morton Grove, IL

The majority of homes in Chicago, IL and surrounding areas sacrifice up to 30% of their heated or cooled air to cracks and holes in the ductwork. These same flaws in the duct system draw in dust, bacteria, and all sorts of allergens, then spread them all over the house. You may notice one room is always chilly, excessive dust gathering on surfaces, unpleasant smells, and steadily increasing energy bills. Fortunately, these concerns are easy and affordable to resolve. Simply call Guardian Heating & Cooling Service at 312-818-2840 for professional duct sealing services.

Professional Duct Sealing Service

Guardian Heating & Cooling Service specializes in the industry-leading technology known as Aeroseal. We fix imperfections in the ductwork from the inside out, effectively reaching the entirety of the system without disruption to the home. There’s no mess, and the whole process is completed in a couple of hours. The formula involves safe, non-toxic, adhesive polymer particles that are made of the same material found in baby pacifiers and chewing gum.

Give our team in Lincoln Park, Skokie, Chicago, Niles, Evanston, Wilmette, Park Ridge, and Morton Grove, IL a call for duct sealing service you can count on!

According to the US Department of Energy, Aeroseal is one of the most rewarding energy technologies for American consumers. The NATE-certified, factory trained, fully licensed, insured, and bonded specialists from Guardian Heating & Cooling Service put this innovative process to work for you. You’ll immediately feel the difference in the comfort and cleanliness of your home. You also stand to save between $400 and $700 annually on your heating and cooling bills. Family owned and operated, Guardian Heating & Cooling Service is large enough to handle your needs and small enough to care. We provide affordable duct sealing throughout Lincoln Park, Skokie, Chicago, Niles, Evanston, Wilmette, Park Ridge, and Morton Grove, IL.

Aeroseal: 

Duct Maintenance in Evanston, IL | Duct Repair Niles, IL | Duct Sealing Chicago, IL

Serving Chicago, IL and surrounding areas

Duct SealingDuct MaintenanceDuct Repair ∴ Evanston, IL ∴ Lincoln Park, IL ∴ Skokie, IL

Save today with our special offers

You love getting good deals, so here are some coupons to show our appreciation for considering us for your next heating or cooling installation or repair.

Special Offers
  • 30% off

    30% Off any repair preformed*

    773-763-9224


    *Restrictions apply. Cannot be combined with any other offers. Must present coupon at time of service.

    Expires: 09/30/2023

  • Save Thousands w/ Local & Federal Rebates

    Learn More


    *Scheduling restrictions may apply. Limited spaces available. Ground-level residential equipment. Cannot be combined with any other offers. Must present coupon at time of service.

  • $99 Preventative Maintenance

    773-763-9224


    *Scheduling restrictions may apply. Limited spaces available. Ground-level residential equipment. Cannot be combined with any other offers. Must present coupon at time of service.

  • Mini-Split(Ductless) Installation

    $250.00 Off*

    773-763-9224


    *Restrictions apply. Cannot be combined with any other offers. Must present coupon at time of service.

    Expires: 09/30/2023

What our clients are saying

Paula HagertyPaula Hagerty
16:19 23 Jun 23
My air conditioner was not cooling properly so I contacted Guardian and they were out in 2 days to repair my air conditioner. My technician, Nelson, inspected my A/C unit, diagnosed the issue and made the repair quickly. He explained everything thoroughly and answered all of my questions. I highly recommend Guardian for your A/C and heating needs.
Charlie EvansCharlie Evans
16:35 03 Jun 23
Jasper Pitrello was extremely professional, patient, and helpful for us with the installation of a new mini split AC system. He even took time to diagnose the issue with our current system and estimate repair. He gave us a very positive, low pressure experience that we appreciated very much. This is our second experience with Guardian and we've been very impressed and would recommend them and Jasper to anyone.
james georgeffjames georgeff
19:47 25 May 23
We used Guardian to come and take a look at our system after we had a slight leak from the vent in our bathroom.Nelson came much earlier than expected (which was great), and was diligent and through with his assessment of our unit. He carefully explained the issues and how we should approach fixing and monitoring our system and I felt confident about our situation after he left.I would certainly use Guardian again and wouldn’t hesitate recommending them to a friend.
Josie SullivanJosie Sullivan
21:40 17 Mar 23
We are very pleased with Sergio's great customer service, knowledgeable, and professional service he provided while fixing our heating furnace issue. He explained what the problem was and what our options were. He went out of his way to thoroughly checked his work before leaving to make sure that our furnace issue was resolved. We will definitely ask for Sergio again should we have any more problems in the future. Nowadays, its hard to find an honest person that cares about his work and his customer. Thank you Sergio and Guardian.
James ReedyJames Reedy
20:19 14 Mar 23
Guardian came the same day I called to set up a repair appointment. Nelson, accompanied by apprentice JR, was professional and courteous. He explained the problem and the cause of the short cycling of my furnace, then discussed other services he thought I should be aware of, such as correcting the faulty installation of my hot water heater by a previous contractor. He also encouraged me to have Guardian do an annual inspection of by heating/cool systems. I was pleased with the service and the cost------just by basic service call price of $89!
Amy KhareAmy Khare
22:41 22 Nov 22
I have been a very happy customer of Guardian for years, after having difficult service with larger companies where the technicians circle in and out. What I appreciate the most from the Guardian team is how much they genuinely care about ensuring that we feel safe and secure in our home, as well as educated about our systems so we can ensure preventative maintenance. Today, I had an emergency with a gas leak. Within hours, Nelson was at our home, diagnosing the problem and ensuring resolution. He made sure that the system was running properly rather than just doing a quick fix and running out the door. He helped me feel reassured with the resolution. Megan, who works in the front office, has been a reliable support over the years to help ensure proactive scheduling and that my administrative records are kept and shared via email. This company knows customer service like its a pleasure for them!
Diana VillafuerteDiana Villafuerte
04:37 19 Nov 22
I have the protection plan for my boiler and part of that is an annual regular preventive maintenance service check. Fortunately, a staff member, Meghan, contacted me to renew my plan subscription and schedule an appointment. Service technician Nelson, along with trainee Ray, were assigned to my home. They both were professional and courteous. The PM check was thorough and efficient. They answered my questions and confirmed my system was working properly. I appreciate their professionalism and work ethic. I would request either of them for future service calls to my home. Overall, I'm pleased with Guardian Heating and would recommend their service.
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