Heating & Air Conditioning / HVAC near Palos Heights

“Paul arrived as scheduled, very polite, got to the a/c clean and check. Appeared to do a good job.“

“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!!!“

“Assured Air Ltd sent a technician out at no charge to check the work of a recently hired technician. Very Happy with Assured Air Ltd and their commitment to customer service.“

“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 …….“

“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!!“

“The contractor came and stopped the knocking coming from the radiator that very disturbing for 30days. He even educated me on the radiator and why the knocking was happening. I really appreciate the help and information being a parent!“

“Good prices. Good work. Good clean-up. Highly recommend Mid-City. Streamlined my basement ceiling ductwork. House feels warmer on lower heat settings. Mission accomplished.“

“Marek was On time. Very polite and friendly. Great service fixed the air conditioning fast“

“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.“

“Ray came out (and has been out for many of my service requests) and was very polite and knowledgeable about my igniter issue. He gave great recommendations and serviced my furnace to ensure it was working properly. Service was fast and efficient.“

“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.“

“Very happy with my new system, Tom came out and walked me through my options. I ended up going with a secondary system for my upper level and couldn’t be happier with the outcome. Very clean and professional work.“

“We used Four Seasons for a plumbing issue. Everything was taken care of in a very prompt, professional manner.“

“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.“

“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.“

“Jeff and his team were excellent! Had the job done quick with affordable pricing! Would highly recommend and will work with them again for sure!“

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

“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!“

“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.“

“Only ones locally who Came out same day for service on the AC unit. Recommend a replacement“

“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.“

“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!“

“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.“

“Made an appointment within 24 hours. The technician was on time and very knowledgeable.
That’s not the first nor the last time I will use Maertin Heating and Cooling.“

“Jeremy and his team replaced our entire HVAC system (AC, humidifier, coil, furnace). Their work was timely, reasonably priced, and well executed. I found the whole team to be very professional, knowledgeable, and respectful throughout the experience. Highly recommend working with them!“

“Hoekstra’s entire team I have dealt with were amazing! Customer Service, Sara, helped me out of a jam and Steve was amazing. He was kind and he explained all the work that needed to be done. Before he left he cleaned up so well I wouldn’t have known he was even here other than I now have AC on this 85 degree very humid day!! You can’t go wrong calling Hoekstra!“

“Mike Brock came out and did a great job with what I needed in a very prompt manner. I would recommend him for bathroom/plumbing and any other remodeling or repair“