Welp, it doesn't get much better than this. I called Williamson after trying Illiana the same day,…read morehoping Williamson good send someone right away (Illiana couldn't make an emergency call and we needed someone here before we left for work). The technician called me back immediately and stopped by us on his way to another job within 30 minutes of the call. They were in and out within 30 minutes, replacing our 2nd capacitor for $100 less than Illiana charged us for the exact same part last Summer. I am happy to be working with a small, local business, and now I'm never turning back. Thank you Williamson!

Hello everyone, I want to give an enthusiastic 5 thumbs up for Williamson Heating & Cooling. Let…read moreme tell you why, Williamson has been my HVAC team for 17 years. As a single girl, y'all know it's hard to find good help. Wayne and his dad are AWESOME! They've installed and maintained my HVAC system with consistent excellence. I once had an outdated furnace that would go out on the coldest days, Williamson has always been there for me. They arrive on time, clean up and are all very courteous. I have replaced a heating and A/C system with Williamson and there is no other HVAC team for me. I highly recommend my HVAC team. Williamson heating is the best!

Awful company. My family has tried to use him on 3 separate occasions, trying to keep things…read morelocal. Each time he has had an "emergency" but has failed to call us and let us know. Horrible company. Owner is a loser.

Well the tech cane and did a spring service before summer started. No problem paid with a check was…read moretold I was to receive a email invoice I never got it. I'm big on the small things don't tell me you will do something and you don't follow through. So tech tells me I need a leak test I'm low on refrigerant. I call they say they are busy and they will call back in a week. They never call or follow up. I call back set up an appointment for leak test. Appointment is made and day of no tech shows. I call receptionist says it's her fault and she mismanaged the schedule. I really don't care I came home for the tech burned my comp time for a no show. The receptionist should be let go or my time should be compensated due to inefficiency as a secretary on several different levels. I do not recommend. Find another company don't use this one.

From the owner: General HVAC Duct Repair and Service…read moreWhole House Generator Sales and Installation Products: Air Conditioners Solar Roof Exhaust/Vents Geothermal Generators Boilers Humidifiers Dehumidifiers Single-Stage Furnaces Two-Stage Furnaces Heaters Thermostats Wi-Fi Thermostats Services: Heating and Cooling Services Sales and Installation Repair Services General Maintenance Decorative Industrial Duct-work Residential and Commercial Work 24/7 Emergency Services Available Brands: Bryant Service on All Makes and Models Location Facts: Located North of Rt. 2 on Westmeadow

Ken Kever is a diligent hard working honest young man who will do a great job for you We hd a heat…read moreemergency the day afte Christmas 2015, sand as luck would have it he was able to come ot and fix our plugged up condensate pump line in very short time . He didnt try to BS us and sell us parts w did'nt He is a very honest young Man I highly recommend him He ill defintely be installing our next high efffiency furnace We hve hd him here several times and he was great Ournow retired HVAC guy recommended Ken to us Rose

Came out on a fully booked day to fit me in when no one else could. GREAT job diagnosing the…read moreproblem and fixing it quickly at totally fair cost! Thank you Kevin for fitting me in, thank you Shawn for doing a great service call !!!!

Wait until they discover their two-stage furnace was never installed correctly and that it's been…read morerunning on single stage for years. This was a serious oversight. If a two-stage furnace was wired or set up incorrectly and only ever ran in single-stage mode, the homeowner probably missed out on: Comfort benefits - two-stage furnaces are designed to run on low most of the time, giving more even heating and fewer temperature swings. Efficiency - the furnace likely used more gas and electricity than necessary. Longevity - constant high-stage operation puts more wear on components than normal two-stage cycling. It would worth having a qualified HVAC tech inspect the wiring, thermostat settings, and control board configuration.

Today I had a surprise delivery! I am the proud owner of a…read morenew furnace. His delivery was much sooner than expected, but you know how these things go. We are both doing well, but the bill was a little bit painful for my wallet. (But very fair) Full Name: Lennox ML180UHE (Leni) Weight: 127lbs Height: 33" He is warm and already quite a comfort. I know we will enjoy years of happiness with Leni. The whole experience with Illiana HVAC was easy and professionally well done. My old furnace had a great life but reached the end of its service. Illiana understood my needs and got the install done in a few hours. Adam and Vaughan were fantastic with the installation. They were very professional, respectful and talked me through the whole process. I will use Illiana for all my HVAC needs.

I will never use them again. Owner lied to me about repair and ability to fix the furnace. Then…read morewhen I told him I kept the voice recording of his salesman stating the condition of my furnace, he just stopped taking my calls or returning my emails. I would not recommend this company.

This place has really nice technicians but the owner is not very truthful and gives me a lot of…read morerunaround. I purchased a huge AC unit for my business and it has been lots of problems and headaches ever since. He tries to make me out like this is all my fault and my staffs fault and he does not always hold up his end of the bargain..I would not recommend him at all..but I feel bad his technicians have to work for him as they are polite and nice..but he is shady

STI Heating & Air Conditioning saved me so much money! I had another HVAC company looked at my…read morecentral air unit because it was blowing lukewarm air. The other company told me I needed a new compressor for $1699 and they took only cash. After a repairman ran off with $453 of my aunt's cash, I decided I did not feel comfortable giving the HVAC repairman $2000 (with labor) in cash. So, I told him I would seek a second opinion. I called STI Heating & Cooling who were booked for the week so I made an appointment for the following week. Ted arrived on time and was very professional. He took a look at my unit (which is 42 years old) and told me I needed a Hard Start Capacitor for $173. He also checked the amount of Freon (R22) told me I might need a little. He installed the capacitor and added a little Freon and my unit start blowing extremely cold air. Ted's work was great! He told me his father had an old unit like mines and he keeps him father's unit working. I told Ted the other repairman thought I needed a new compressor and Ted suggested maybe the other repairman was not familiar with older units like mine. I am SO glad I called STI Heating & Cooling! I told Ted they are now my go-to company for ALL my HVAC activities. I would highly recommend this company - they proved to be a huge money saver for me.

The service was amazing! Customer service was very helpful and the technician provided excellent…read moreservice. And they were reasonably priced! I would definitely recommend STI Heating & Air Conditioning to anyone looking for repair and/or great service. Will definitely contact them again for future repairs and checks. :)

Beware! Fake Business name of Crown Heating & Cooling doing business in Illinois. They sell used…read moreequipment as NEW. They say they are available 24/7 ....They are not. They say the warrent the equipment and labot.........They do not.

Alex and his team are the very best in the business! My air conditioning unit went out and Alex…read morecame to my house immediately to help me. Alex and his team go above and beyond to provide outstanding customer service and their prices are very reasonable. You can always reach them on the phone anytime which was greatly appreciated.

During Christmas week, Alex and Tony came to our house twice to fix our furnace. It finally was…read moredetermined that our furnace had died. They came on Christmas Eve day to install a new one. We couldn't have been more pleased with their prompt customer service. The furnace works great and our holiday was not spend in the cold. Highly recommend this company. The owner, Alex, is top notch in our book.