fast and efficient service. Quality work. Very knowledgeable staff. better than fair price…read more Thanks, Mike and Jeff!

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.

Requested a HVAC and Furnace tune up through the yelp projects…read more Quick response and got us on the schedule. They came out today and the tech was great, checked everything out. Happy with the service and would recommend to other. We will be repeat customers in the future

Technicians came on time and explained every thing they were doing like I was a kid (which is what…read moreI want...I know nothing about HVACs). Technicians were extremely honest and didn't try to upsell. Even told me that if something were to happen, I can call them again and I wouldn't be charged another fee to come out. You've earned a lifelong customer. Thanks!

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 I once had an outdated furnace that would go out on the coldest days, Williamson has always been there for me.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

BEWARE. They have good reviews, but here is a breakdown of the one star. Would be negative one if…read morepossible. EDIT - They left trash behind. The bucket with all their unnecessary rebuild junk left next to the toilet. For those who have frustrations dealing with AI and auto-booking... they have an annoying robot who books appointments who cannot differentiate members from non-members. Took two phone calls and 6 minutes to connect to an actual human.The things meant to help are harming us. Pay people, not machines. Regarding machines, the plumber took a quick look and confirmed it was the fill value not doing the job. Something I told my mom I could fix easily with a part from ACE. He quoted $368 for a rebuild, which didn't need to be done. I replaced the flapper and chain about a 6 months prior. Not only is this an easy DYI fix with a $20 part, but he tossed the 6 month old flapper and chain. He tossed the work I just did. THIS DID NOT NEED TO BE DONE and it's insane to charge that much. It already costs members $69 to come out, and $368 is with the member discount. I am not the home owner, so I have no say so in approving the work. I have builder friends and my neighbor (HOA) agreed the price is insane. $437 to fix a $20 problem. This is 2026 and my mom is on a very limited fixed income. I spoke to Ben the manager, asked for a breakdown. If the up-charge was the parts or labor. He said there is no break down and that's what it costs. I could not have been more angry with these people. If you know nothing about plumbing, than learn. Because it ridiculous to be charged that much for something so easy to fix.

This is a poorly run business! After charging me $170 for a…read morehalf hour of labor, and a small piece of duct tape, I called in the same day and asked a supervisor to call me. It has been three weeks, and they still have not called. If you want to head on the path of going out to business, this is the way to do it!

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. :)

Provided a free estimate and completed ductwork replacement within days. All staff are…read moreprofessional, amiable, and efficient. Colby completed expert installation in under three hours. Marlon assisted with final cleaning. And Diamond's responsiveness to questions and scheduling was invaluable. Kudos to All at Tech One. I highly recommend them. D. Young in Richton Park

From the owner: Tech One Heating and AC is locally owned and operated HVAC contractor that can provide homeowners…read moreand business owners with a wide range of heating and air conditioning services. We offer our comprehensive services to Northwest Indiana and the South Suburbs of Chicago. With over 20 years of experience in the Heating & Air Conditioning industry, we are confident we can help you with whatever heating or air conditioning service you need. Maintenance Agreements are available to ensure that you are always VIP in our customer database. Regular maintenance is one of the most cost effective ways to maintain comfort and increase efficiency.

Elite Comfort guys are very professional and high quality technicians. We trust them to tell us…read morethe truth about our HVAC system, etc. They were formed by three young men who formerly worked for a south suburban and well known company that sold to a large outfit - we prefer the family business atmosphere of Elite. We chose to stay with Elite because we trust them, they are a small, local business and they know their stuff. They are beyond fair with their rates and answer every question we ask - honestly. They have kept our units running well without incident. Would recommend them, and have, to everyone we know.

From the owner: Elite Comfort Heating & Air Conditioning offers HVAC services in Northwest Indiana. We provide…read moreinstallation, repair, and maintenance for heating, cooling, and indoor air quality, ensuring year-round comfort with a focus on customer satisfaction.

Kind of surprising that reviews from two and three years ago are still effecting these yelp…read morereviews. Michael came out and discussed our needs and reviewed the options. We picked a 15 seer two stage furnace. We look forward to the five year ( twice per season) maintenance contract. Nice to think that there is reliability in the new a/c and furnace. Discussed options on Wednesday and they installed it on Friday. Efficient crew that was very polite and knowledgeable of what was needed. Certainly one of the companies that you should talk to when looking to do HVAC work.

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.

We have used Modern Heating and Cooling multiple times in the last 10 years and recently had a…read morenew A/C and Heating system installed at our daughters home, and had previously gotten a new system in our home. Our experience has been nothing but wonderful, the entire staff is always courteous, arrives on time, and explains what the issue is and most cost effect solution. We would never go anywhere else for our cooling and heating needs.

Needing a new furnace and A/C, I took one week to get estimates from 6 different local companies…read more Jason was the last one to cone out and he was the one I went with. He is a technician, not a sales person like most of the other companies. Therefore, he know what he was talking about as far as what equipment I needed, and why. He was very personable, polite, and an asset to the company. I decided on Modern and scheduling was only a few weeks out. On the appointed day, Jim and Dave showed up on time, and worked all day to get everything installed. They were polite, prompt and obviously knowledgeable. All went without a hitch and they removed the old furnace and AC and cleaned up everything before they left. I certainly chose the right company, I could not be more pleased with them and how flawlessly everything went. Their price was the best around for the very same products other companies quoted considerably more for. Please shop around and do your research before you make this considerable purchase. I did......and happily, I chose Modern!

Highly recommend this company for quick fair priced services! I moved into a new house with no AC…read moreand reached out to 4 companies to give me a quote on central AC vs minisplit system. King was quick to respond and listened to our needs. They provided the lowest price while other companies were looking to up charge and quoting me higher prices so I hired them and couldn't be happier with results. 1 year in and our minisplit works great! I have since used them again to install a tankless water heater after our old one gave out and once again they were able to get someone out next day to complete the job. They also have great financing options if needed. I will definitely continue to use them in the future for all heating, cooling and plumbing needs.

If you're looking for an excellent plumbing service, call King and ask for Seth. I had a badly…read moreclogged sink that wasn't draining at all, and Seth showed up ready to work--and with a great attitude. He was incredibly kind, professional, and respectful, which immediately put me at ease. Seth diagnosed the issue quickly and fixed the clog. My sink is now draining perfectly, and the whole experience was completely stress-free. It's rare to find a plumber who is both highly skilled and genuinely nice, but Seth is exactly that. If you need help with a clogged sink, drain issues, or plumbing repairs, I can't recommend them enough. Reliable, efficient, and an all-around great people. King is the plumber you want to call.