Heating & Air Conditioning / HVAC near Palos Heights

“Jacob Anderson the general manager really went above and beyond to explain everything to me about the new HVAC system being installed by my mothers house. Very trustworthy and reputable company. Upholding warranties and very competitive pricing.“

“Very happy. Good, honest people. Showed up when he said he would every time. Fair price. Good workmanship. Cleaned up after the install. I couldn't be here, but Mike explained everything to my wife very clearly.“

“Excellent service! Friendly efficient knowledge staff. Tim Estimator Alexis Secretary Ryan West and Colin Installation Technicians I have to say everyone I was in contact with was very easy to deal with. I felt bad for the install technicians as it was only 8 degrees outside. They did an all day outside commercial unit install at the house with no complaints. Also did a great job! I highly recommend using them.“

“I am a Senior Widow. On Thursday, my furnace shut completely down and was blowing only cold air! Outside the temperatures were in the 20s and it was frigid inside.
I found PRECISION HVAC through Google, and it was truly a blessing! They came out that afternoon and ran some tests.
At first, they thought they could make some temporary adjustments, till I decided if I wanted a new furnace, but as we continue to have conversation, the Carbon Monoxide Meter showed that carbon monoxide was leaking from my old unit, at a rapid pace! They were forced to shut the whole unit down!

They contacted their estimator, Peter, who came later that evening to discuss a new furnace and various prices. On his way to seeing me, he stopped at the office and brought two Space Heaters, for me to use for that evening and Saturday the next day, until the new installers could get to me at noon.
I was truly touched by the fact that Peter would think of my well-being, and bring space heaters on his own!

I am enjoying my new Trane Furnace, and have already referred a new client to them, and have told our manager of the condo complex about their efficiency, professionalism, and reasonable prices. Needless to say. I HIGHLY RECOMMEND PRECISION HVAC … 5 STARS ‼️“

“Coordinator Elisha was terrific: kept me informed of when technician would be here; Rich Lewis boiler tech was also tops: readjusted settings and cleaned burners - obviously knows his trade well. Reasonable charges. I can't say enough good. Definitely will call Maertin again - Love you guys“

“Thank you Brett for cleaning our furnaces and humidifier. Always professional and knowledgeable. Appreciate Comfortmate -Brett coming out in this cold. Don’t hesitate to call them, they are trust worthy.“

“I Have ALWAYS had top notch service from the phone calls to the pleasant and informative professionals who service my home and business! You Have ALWAYS been a top notch service for me and my family over 30 years..Thank You!“

“Love JC Heating and Cooling. They fixed both of my AC and furnace and have great customer service. I use them for maintenance and my system has been working flawlessly!“

“Temperature Pro has top quality Technicians and Service. We received a free end of year checkup on our furnace and they sent Jeremy to complete it. He checked everything and showed us how to regulate our humidity (which had been too low for us). He also made suggestions for a new thermostat that includes a humidity monitoring option which we are considering. Great service!“

“Can’t thank you enough for the great job you all did. Our home is nice and warm. The best part is it’s worry free. Thank you again.“

“We know Heat Engineering people for as they put heating and cooling system, when we built house 30 years back. Very professional, response time was prompt so was delivery of service. price is now little expensive side but you get what you pay for.“

“I couldn’t be happier with the service I received from Four Seasons! From the moment I contacted them, they were professional, responsive, and truly committed to making sure everything was done right. The technicians arrived on time, explained everything clearly, and worked efficiently. You can tell they really care about their customers and take pride in their work.“

“Jordan the plumber did an excellent job. He was professional, respectful, kind and friendly .He explained all the details as he worked on repairing the toilet. I was amazed and impressed by how clean the work area was after he was finished. He was also consistent with putting on shoe covers each time he came into our house. I give him 10 stars for his service.“

“Both Jake and Ben were very professional and knowledgeable. They were timely in responding , diagnosing, and repairing my wall heater issue.“

“Josh is personable and professional.
Explained things very clearly. Offered advice re: mice a filter.
I really appreciate the bio that is sent re: the technician providing the service. It's nice to have as I congratulated him on his new baby daughter Brinn.?
Happy Holidays to everyone and Comfort Zone. Thank you for the years of excellent service.“

“My mini split was not working I called at like 4:45 pm, my call was picked up was told I would have someone at the house between 8-10 am following day. I was like you don’t know the address, she had it based on prior service call. With the heatwave I did not expect next service or that kind of retention information held. I forgot to mention…they fixed my cooling device and got me back to working from home!! Great ? company!!!“

“Air Source 1 installed our furnace a couple of years back and was great then, we have continued to use them yearly for maintenance and always find the service quick/easy and very affordable.“

“We started to have a problem with our furnace on a Sunday night, called first thing on Monday morning & left a message and Jeff quickly got back to me. He and his team member were able to come out and get the parts replaced and got the furnace up and working same day. Great service, reasonable pricing, and great attitude. Also a veteran-owned business!! Thanks!“

“Our furnace went out in one of the coldest days of the year. We called our usual HVAC company we’ve used and no response. My husband called and texted I also called and texted. And till this day we have not received a callback. I called Kings Heating and Cooling they responded quickly and a technician was sent out within 20 minutes. Cole was polite and honest with us. He set us up with a sales rep. Who also came out the same night. Jordan was very personable, funny and he loved our dog Ozzie. We were given space heaters and our furnace was installed within 2 days. Technicians were also professional and respectful. We are very happy with our furnace and humidifier. Needless to say our old HVAC company is no longer on our contact list. A huge thank you to TJ you are awesome.“

“Great experience with Allegiance. The owners were out of town on vacation. They took our call without hesitation got a tech headed our way and got our house back heating within the hour in below 0 temps. Great company and great service. Highly recommend!!“

“Friendly, professional, informative and efficient, Joe/ Joel was spot on with his expertise. We will consider the other companies’ services when needed.“

“Ceasar was the service man who tuned up our heating/cooling systems. He was very knowledgeable and did a very thorough job. He even cleaned the outside unit, no other service person had ever did that. Going forward we plan to give our business to AABAL“

“Alex from WAN-Tuck . Heating was able to turn my heat on after TWO - other heater companies could not …..I had my aquastat replaced by the second contractor that came to my home . However my heat still kept shutting on and off and eventually it didn’t turn on and my PSI was all over 50 / 60 / 70 The second contractor admitted he did not know what was wrong with my boiler…. That’s when I had to call. Wan-Tuk as they were the ones that installed it in 2008 Never had any issues till now 2025 I have never maintained my boiler ….. I never flushed expansion tank never did anything. I bleed my heaters here and there……. That should’ve been a clue to me of the quality of the work that WAN - Tuck provides since 2008 no issues / no maintenance till now …………As far as the second contractor that replaced the aquastat disrupted my PSI and did not know how to fix it … before new part was installed my PSI was between 15 and 16………… Alex from WAN-Tuck adjusted the temperature on the aquastat which was set above what it should be set for my boiler (the second contractor missed this detail) ….. Alex got my heat turned …… And my heat stayed on and didn’t shut off anymore….Alex tried to flush my expansion ( to regulate PSI ) but tank valve wouldn’t budge so I had to have it replaced ….. I still have my heat …… Thank you Alex from WAN -Tuk for being Courteous / polite and knowledgeable…..and for taking your shoes off before coming in my house / a lot of heating people won’t even ask…. The moral of my story is, I tried to shop around to save money, but in the long run, I spent more if I would’ve just reached out to Wan -Tuck in the beginning I would not have spent as much as I did on the first and the second contractors ….. in the end, Alex…. Diagnose and repairs were cheaper than the first two contractors and with good results heat stayed on my PSI went down to 20 after expansion tank was emptied and refilled …….“

“I had an awesome experience with my technician. Professional, explained the problem in detail and gave reassurance that the problem could be solved. I solve problems for a living. This young man did a phenomenal job.“

“Very satisfied with the total experience and the technicians that came to the house .“

“I hired Assured for some AC work after my system wouldn't turn on this summer. I have a fairly complicated 2 zone SpacePak system and after getting multiple bids and talking extensively with each contractor, selected them for their low price (considering I needed a complete replacement due to refrigerant regulations), as well as their thorough explanations of the work and responsiveness. Assured was professional, on time, clean, and explained the work as well as care and maintenance so I understood what they were doing and confident how to maintain the system for the future. I highly recommend them.“

“We had such a great experience with Marek! He was so kind, professional, and made the whole process stress-free. He explained everything clearly, fixed our AC quickly, and made sure everything was working perfectly before he left. On top of that, he was genuinely sweet and respectful, which made the experience even better. It’s not easy to find people who are both skilled and caring, but he was exactly that. Highly recommend!“