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 I once had an outdated furnace that would go out on the coldest days, Williamson has always been there for me.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!

Great service. They did an excellent job and I highly recommend. Tim and his team were fantastic!read more

We had a mouse chew through the wires on our air conditioner outside. It was over 90 degrees…read moreoutside and we were in desperate need of a fix. They came out promptly and were extremely nice, professional and honest. They fixed everything quickly for a very reasonable price. The first company we called tried to, I assume, take advantage of the hot temperatures and gave us an astronomically high quote (7x higher than Air Source 1), which we declined. I can't recommend Air Source 1 enough. We will certainly be using them for any and all HVAC needs in the future!

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. :)

Steve's work is fantastic and I'm recommending him to everyone I know…read more Our furnace went out this year, and it ended up being in need of some major repairs (cracked heat exchangers). I asked around and got a strong recommendation from a friend for Smart Move. I'm so glad I did. They helped us out, sourced all the parts we needed, and coordinated an inexpensive but very thorough repair. Steve and his team did great work quickly and at a fair price. They're friendly, helpful, and they're happy to discuss technical details with interested nerds like me. But more importantly, our house is very comfortable and we feel safe thanks to the thorough repairs Smart Move made. Thanks so much!

Steve installed a hot water tank bought from Menards for me but refused to give me the receipt…read morethat held my warranty. He literally argued with me on why I should have a receipt of an item I paid him to purchase. He still have not given me the receipt. This is a bad business man!!! He lost a customer for his ruse unprofessional behavior!!!

Even though we hadn't adjusted the thermostat settings, we were unable to understand why our energy…read moreexpenses had been gradually increasing each month for some time. We requested a comprehensive home energy assessment from this company. They went above and beyond what I had anticipated, a simple once-over. The professional tested HVAC performance, insulation levels, duct leaks, and even conducted a blower door test to find leaks and drafts for several hours. He compiled a list of fixes based on potential savings and produced a detailed report including thermal photos. We improved the attic insulation and sealed the ducts. The improvement has been amazing--the home stays more consistently conditioned and our heating and cooling system operates less frequently. We have already observed a 25% decrease in our utility costs. In addition to selling us equipment, They truly stand out for their expertise and transparency.

Quick and quality service for the replacement of my old rooftop air conditioning unit.read more

Mark came out on a holiday weekend as our AC was not cooling. He was able to quickly diagnose the…read moreproblem and repair it on the spot. Mark walked me through every step of what he was doing, and within a half an hour our AC was pumping out cold air again. I would HIGHLY recommend Collins to anyone. They truly want to help their customers and not just sell unneeded items. Easily a 5 star company!

My furnace stopped working and cold temperatures were starting to come in.. after looking up a few…read moreheating places and seeing reviews I chose Collins. I'm so glad I did. Mark the owner is honest and friendly. I felt confident in the opinion he gave me and would trust him again in the future. I'm enjoying my new furnace and humidifier without worries for the winter. Give him a try, you won't regret it!!

Without a doubt call Naughton for HVAC needs. They were friendly, helpful, and the service was top…read morenotch. They came much cheaper than I was quoted from another company and a repairman was here in 15 minutes.

Can\'t say enough good things about Naughton- they were prompt, courteous, and quickly diagnosed…read morethe problem and provided an estimate for the repairs. Once the parts were ordered and received, they returned and installed everything quickly. Price was fair, and Mike Naughton and his staff were very professional, efficient, and friendly. Would highly recommend without hesitation.

Stay away from this business! My entire cooling and heating system was left in an inoperable state…read more I called for a diagnostic of the air conditioner today because cool air isn't coming from the vents. I was told the diagnostic would cost $149. I asked to be informed of any repairs that had to be done. Technician checked the system and recommended replacing unit. We discussed replacement unit and cost. I was ready to pay deposit. In the next 10 minutes I was told that the model I selected is old and not available. New model costs $1000 more. I asked for a proposal to decide later. Technician told me that the visit costs $396. He said that he fixed air conditioner that was not working. He never told me that he is fixing anything. Through our the visit it looked like he was figuring out the problem. I talked to the owner and we agreed that any repairs that were done will be undone so that I do not have to pay for repairs. Then the technician removed all the wires from the board making both heat and fan unusable. He did not just undo the "repairs", but made entire system unusable including fan and heat which were working before his visit. See the photos to show what was done!

Reply to 2 reactions from Harmonic on my 1 star review…read more 1. A. & K. claimed A. fixed my heater Tuesday; lie. Bad customer service. Harmonic deserves 1 star, but all the starts below 5 are NOT indicated on the Google graphic of the numbers of review stars 1-4: false. 2. I never promised a review pull-down for a discount. My husband & I have better things to do than having an "agenda" as Harmonic accused. My husband was on a business trip. 3. I never called for an emergency repair. I did not switch from repair to cleaning & maintenance. I asked A. if C & M was possible afterward, unaware of 2 more with no heat. Harmonic called me "selfish" for this. 4. Any possibility A. and K. have unconscious biases towards people like me? They accused us of "manipulating" what? To save a few hundred bucks, while we spent in the tens of thousands at Harmonic's better former (aquired) company) you imagined up? 5. How could Harmonic accuse me of lying about my pain. Because I was able to and had to carry my 10 lb dog for a short moment because of her barkin? Why do I even have to explain my chronic severe back pain and mostly failed back surgeries and weak immune system? 6. I had no "agenda," but getting my heate fixed. I am not playing any "game" as accused. I am standing up for myself. 7. K.'s statistics on the number of my Goole reviews are false. 8. A. & K. are the ones who were "aggressive, harsh, unethical, disrespectful, and manipulative." Stop projecting and gaslighting. I wish I would remember to record conversations when I am alone with a person like A. Why did K pull down his absurd replies on Google?

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.

Very disappointed. Technician left clamps inside our furnace so the heat wouldnt turn off. The gas…read morefurnace kept running and running and running even when the thermostat was turned off. Didn't matter that the temp was set to 72, the furnace kept running into the mid 80s. I tried adjusting the temperature and when that didnt work I turned the thermostat off. When that didnt work and my screaming hot baby needed put back into bed I had my husband go and check the issue himself. Mertz sent a technician that failed to ensure he took all his equipment with him and left us in a dangerous situation with a nonstop running gas furnace.

I was a loyal customer to this company,when I called on October 31 to have them clean nd tune up my…read morefurnace that I purchased from them the representative on the phone told me the best he could do was dec 4,over. month to send someone three miles away from there shop.Well they seen their last dollar from me.