Cool Z Heating

Cool Z Heating specializes in residential heating and cooling systems including furnaces, boilers, and mini splits. Our certified technicians install, repair, and maintain systems to ensure year-round comfort. We prioritize minimizing home disruptions while optimizing system efficiency for homeowners.

Our commercial HVAC services address large-scale heating and cooling needs for businesses. We handle installations, maintenance, and emergency repairs for systems serving offices, retail spaces, and industrial facilities. Our 24/7 availability ensures minimal operational downtime for commercial clients.

We provide urgent heating repair services with 99% same-day response rates. Our technicians diagnose and fix furnace, boiler, and hydronic system issues using fully equipped service vehicles. Emergency repairs are available 24/7 to restore warmth quickly during critical failures.

Cool Z Heating offers professional AC installation for residential and commercial properties. Our experts size and install systems tailored to building requirements, ensuring optimal efficiency and comfort. We work with modern mini-split and central air systems for both new builds and replacement projects.

Our maintenance services include seasonal checkups for heating and cooling systems. Technicians inspect components, clean systems, and identify potential issues to prevent breakdowns. Regular maintenance improves system longevity and energy efficiency for residential and commercial clients.

Yes, we provide 24/7 emergency HVAC repair services for urgent heating and cooling system failures.

We serve Itasca, Illinois, and the broader Chicagoland region for residential and commercial HVAC needs.

All our HVAC technicians undergo background checks and regular drug testing for safety and accountability.

No, we use transparent time-and-materials pricing so you know exact costs before work begins.

Yes, we specialize in HVAC solutions for both residential properties and commercial facilities.

Our technicians service all major HVAC brands for repairs, installations, and maintenance projects.

Always the best, great results at a reasonable price. Been my guy for 10+ years after cycling through for a long time.

I am an elite Yelper. I know good. I know bad. The owner is a genuine businessman and knows the true meaning of customer service His staff, esp Lukasz is amazing and respectful and knowledgeable (I had little ones running around) They installed central air in our old bungalow (we had old school window AC units) I wish I could rate him 10 stars.

We had Cool Z heating service both our boilers on our two flat last year and had him replace one boiler from 1987 this year! He is honest, kind, curteous, and is everything you would want in a HVAC company. Out of the four people we called, he was the second lowest and price matched the lowest quote. As a new hone owner I was out of my element when it came to heating maintenance and he was always available to answer my questions with knowledge and patience.

He respected that this was an enormous purchase for us and I am glad we were recommended him by a friend in the community. I highly recommend him to anyone needing to get their furnace or boiler maintained for the yearly maintenance of cleaning and servicing and should you have to replace a boiler, give him a call and get a quote. I don't think you will be sorry. Maciej, if you read this, thank you again for your hard work today and I am happy to give you a rave review!

I have a wall space heater, and they said they worked on them so I scheduled an appointment. First, no one showed up at the specified time. I called back, and whoever answered the phone agreed to swing out and take my furnace cleaning appointment. He looked at my furnace and told me I needed a new control "because plastic had melted around the control". I asked for a price, and a follow up to replace it. Never heard back. We went down later to "remove the plastic", and we did not see any material "melted" around the control at all. I would find it hard to trust this business.

This guy and his workers are the best. I used them for several different projects. They replaced an AC unit on my roof. When we had some issues with drainage, he was there within half a day of when i called. He stood by his work and fixed any problems that came up. even if we couldn't prove it was directly related to his work. I gave him keys to my place and he would come and go as he needed to (even when we weren't home). They are very trustworthy and honest/upfront with prices. I highly recommend.

I called at 8:45 on Friday afternoon because my furnace was not working when I got home. I was surprised when someone answered, he was pleasant and ready to help me. Wow. I couldn't have been more surprised. I could not have been more impressed. Good job.

I called around noon and we scheduled an appointment for the next day. That was great as it was a hot August day in Cicero, IL. I did ask in case they could come later that night and they said it was hard to schedule a same day visit but they'd try. Impressive communication, I must say. The visit was to the point, Mark asked about the problem and proceeded to check the outside unit and within five minutes came to show me a burnt-out part that needed repair.

He said I could buy it myself or he had some in the car. He replaced the part, he cleaned the outside unit, he brought a light to show me the issue in the inside unit and the system was back at work. He mentioned my unit is old and may need to be totally replaced sooner than later; I've heard this before but we're not ready for the investment so I thanked him for his recommendation. Overall, everything went great, it was fast, and the communication from the company is excellent.