Duct Sealing, Duct Maintenance & Duct RepairLincoln Park, IL, Park Ridge, IL, Morton Grove, IL, Chicago, IL, Skokie, IL & Wilmette, 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 (773) 231-9175 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.


Duct Maintenance in Evanston, IL | Duct Sealing Skokie, IL | Duct Repair Morton Grove, IL

Serving Chicago, IL and surrounding areas

Duct SealingDuct RepairDuct Maintenance ∴ Chicago, IL ∴ Skokie, IL ∴ Wilmette, 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
  • Free 2nd Opinion


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

  • $99 Preventative Maintenance


    *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.

  • Carrier Cool Cash is back!

    Carrier Cool Cash

    Up to $1,650 in rebates on qualifying equipment

    Please contact Guardian Heating & Cooling Service at 773-763-9224 for more information. Cannot be combined with any other offer. Promotion runs through 5/28/22.

    Expires: 05/28/2022

  • Respicare Oxy-4 Air Purifier

    $100.00 Off*


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

    Expires: 05/31/2022

What our clients are saying

Maggie HaysMaggie Hays
21:05 09 Mar 22
I called Guardian Heating & Cooling because my Nest had lost power and my furnace wouldn't turn on. Sergio arrived within 1hr and quickly diagnosed & addressed the issue. He was very communicative and helpful throughout the whole process; I will definitely be working with Guardian again.
Paul APaul A
21:18 24 Feb 22
When our heat went out during a particularly cold winter night, Guardian was very responsive in getting our furnace repaired same day. We were able to credit our repair expenses towards a new furnace to replace our aging system - great!Rory and Akeem did a great job installing our new furnace. They had great attention to detail and took the time to do the job right. We am very satisfied with the install.Everyone we interacted with from Guardian was polite and courteous. We would recommend them and plan to use them in the future!
james meissjames meiss
22:31 22 Feb 22
Very courteous and professional technicians. Took them me to make sure everything was in good working order before leaving. Also gave good tip for furnace filter product. I highly recommend Guardian!
Beth SkonyBeth Skony
00:27 16 Dec 21
I just had a great service call on my boiler with Tyler from Guardian Heating. He was extremely thorough and professional, and he took extra time to answer my questions about my system and the possible addition of a smart thermostat. I’m happy to be with such a responsive and caring company after having some unpleasant experiences with a previous heating maintenance company. I contacted Guardian a year ago for a second opinion (based on a referral from another satisfied customer), and ultimately I needed a whole new boiler system and rerouting of some of the piping. They had the new equipment installed within a couple days of the diagnosis, and the installation techs and Jasper, my sales advisor, were wonderful every step of the way. I look forward to working with Guardian for many years to come!
Becca RichardsBecca Richards
22:57 09 Dec 21
Guardian is very reliable and provides wonderful customer service. Sergio was recently at our home to manage a humidifier and heating issue. He was prompt and respectful. He was in a mask and immediately put booties on. He was careful in our home. He assessed the issue and communicated clearly is plan for fixing it. He was efficient and very clean. I would happily have him back anytime. Thank you so much!

Installing the best and servicing the rest!