Your Local Heating and Cooling Experts in Lemont, IL, and Surrounding Areas

We’re comfort’s best friend.



We are the leading company for all of your air conditioning needs. If you need repairs, maintenance, or a brand new system installed,
the technicians at All Seasons Heating and Air Conditioning are the qualified and professional crew for the job.



Don’t get left in the cold! Is your furnace acting up, blowing cold air, or making too much noise? Our experienced team of professionals is here to keep your home warm and cozy.


Indoor Air

Our team offers a diverse range of systems and products, each suited to solving different indoor air quality complications including air filtration systems, germicidal UV lights, and more.



For all of your commercial heating, cooling, and refrigeration needs from Lemont to Hinsdale. We offer service, repairs, and installation on buildings, schools, offices, restaurants, and more.


At ComforTemp, We Are Comfort's Best Friend.

We offer quality repairs, installation, and other heating and air conditioning services throughout the Cook, DuPage, and Will County areas.

Read What Our Clients Have To Say
About Our Service

Incredible AC Installation

Incredible! No nonsense and very detailed in the install. Clean and professional. Put down drop cloths to protect my flooring and all the old equipment was taken out! Very happy and would recommend to others! Anthony K.

Professional, Timely Furnace Repair

Furnace stopped working on Sunday. Called on Monday morning, they had someone out on Monday afternoon. Very professional, explained everything he was doing, and did the timely. Would use again.

Kyle C.

Knowledgeable HVAC Company with Great Customer Service

Very knowledgeable technician and great customer service. This company is the best they brought the needed parts with them and planned ahead and finished the job quickly and also gave a high level of detail. I highly recommended this company.

Deanna S.

Join Our Comfort Club!

Regular maintenance is a cost effective way to maintain comfort, increase efficiency (saving you money on your utilities), and promote longer equipment life. Our professional technicians will pay attention to potential problems before they become big ones and look for more ways to improve your comfort and equipment’s efficiency.

  • 2 Visits Per Year
  • Priority Response Time
  • Longer Equipment Life
  • Increased Comfort and Efficiency
  • Discounted Diagnostic Fees
  • Parts & Labor Warranty
  • Membership Pricing

Exclusive Offers…Just For You!

Air Filter Subscription
maintenance agreement

Proudly Serving Illinois

Catch Up On The Latest With ComforTemp!

Man fixing furnace. 7 Furnace Maintenance.

7 Furnace Maintenance Tips

17 Sep 2022

It’s understandable that maintenance tasks often fall by the wayside. Many Lemont homeowners follow the mantra of “if it ain’t broke, don’t fix it.” Everyone is busy and many seemingly more important priorities tend to creep up every month to consume time and money.

sleep benefits of using ac

3 Health Benefits For Using Your AC While Sleeping

18 Aug 2022

A major part of your health relies on getting a good night’s sleep. That’s why it’s not just important to run your air conditioner during the hot summer days. You also need to keep your home comfortably cool at night as well.

Summer hot weather. Dog sitting in the sun outside panting.

Video – Summer AC Check Up

26 Jul 2022

Schedule a clean-check today to make sure your air conditioner runs smoothly this summer.

Blog Title : How Does an Air Conditioner Work? Photo: AC unit outside of a home

How Does an Air Conditioner Work?

15 Jul 2022

We at ComforTemp Heating & Air Conditioning in Lemont want you to know all about your cooling system and what it takes for your trusted investment to keep running efficiently for years to come.