UV Light, Air Purifier & Air FilterMorton Grove, IL, Lincoln Park, IL, Wilmette, IL, Skokie, IL, Niles, IL & Chicago, IL

Let’s improve the health, enjoyment, and overall integrity of your home. Through personalized strategies, Guardian Heating & Cooling Service optimizes indoor air quality in Chicago, IL and surrounding areas. Doesn’t matter if you’re dealing with a specific complaint, unsure of the nature of the problem, or simply taking proactive measures. Our team of factory trained and NATE-certified professionals provide accurate assessment and a straightforward course of action. We target the whole home through an array of industry-leading equipment certain to exceed expectations.

Improve your home air quality with our featured services

From air filtration to purification, we help you determine the ideal course of action and implement efficient, effective, and sustainable solutions.

Air Filtration or Air Purification

The bacterial-killing properties of Respicare Mold Miser and Carrier UV germicidal lights promotes healthier living and superior HVAC operating efficiency.

UV Lights

Providing for the requirements of every room, these systems operate almost silently, require little maintenance, and significantly improve the health, comfort, and efficiency of your home.


The Aprilaire whole house dehumidification system caters to your size of home and style of HVAC system, delivering quiet, low-maintenance, and sustainable improvement.


We provide professional duct system assessment, repair, and maintenance. We recognize the importance of ductwork operating at peak capacity.


Taking advantage of cutting-edge technology, we access the entirety of the duct network without causing damage, mess, or upheaval. According to the US Department of Energy, Aeroseal is one of the most rewarding energy technologies for American consumers.

Duct cleaning

We fix imperfections in the ductwork from the inside out, effectively reaching the entirety of the system without disruption to the home.


Expert Indoor Air Quality Solutions

Guardian Heating & Cooling Service partners with the pioneers in air quality, including Aprilaire, Carrier, and Honeywell, to ensure the right fit and a sustainable solution to any problem. From too much or too little humidity to unpleasant odors, airborne contaminants, mold growth, and more, we accommodate your HVAC equipment, size/style of home, and goals for improvement. Cutting-edge technology operates virtually silently and requires nothing more than annual maintenance.

Call on our team for indoor air quality services you can trust in Lincoln Park, Skokie, Chicago, Niles, Evanston, Wilmette, Park Ridge, and Morton Grove, IL!

Guardian Heating & Cooling Service is large enough to handle your needs and small enough to care. Our goal is not to talk you into something you don’t need. Family owned and operated, we take indoor air quality very seriously. We recognize the impact on your family’s health, comfort, sleep, and productivity, as well as the risk of damage to home furnishing and wear and tear on HVAC equipment. Contact us at 312-818-2840 for honest recommendations, fair pricing, and trustworthy indoor air quality services across Lincoln Park, Skokie, Chicago, Niles, Evanston, Wilmette, Park Ridge, and Morton Grove, IL.

Indoor Air Quality in Niles, IL | UV Light Lincoln Park, IL | Air Filter Park Ridge, IL

Serving Chicago, IL and surrounding areas

Air PurifierUV LightAir FilterIndoor Air Quality ∴ Skokie, IL ∴ Park Ridge, IL ∴ Niles, 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.

  • Mini-Split(Ductless) Installation

    $250.00 Off*


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

    Expires: 03/31/2023

  • Matching Infinity System (Furnace, A/C, Stat)

    $500.00 Off*


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

    Expires: 03/31/2023

  • Respicare Oxy-4 Air Purifier

    $100.00 Off*


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

    Expires: 04/30/2023

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!