Called them to try to save my old furnace, they were out that day. Furnace needed to be replaced…read moredue to cracked heat exchanger in which they pulled out and showed me. They replaced my furnace and central air unit the next day in 20 degree weather. They were efficient, friendly, clean and very knowledgable!

My furnace went out during a really cold evening. They were out the next day to replace it They…read morewere just wonderful. The staff, price, service and just overall experience! It's never fun spending that much money but they really made it easier and even sent a thank you gift!

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!

Wayne is great. He has done a bunch of heating certs and repair work for me. Straightforward, fair…read moreprices, and quick service. They work in the south suburbs and Indiana as well.

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.

They scammed my 90 year old mother!!! They charged $12,000 for an air conditioning unit a year ago…read moreand it stopped working!! Then they tried to charge her to fix it!! Then they fraudulently charged her debit card for $159.00!!!

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.

All American HVAC is professional, knowledgeable and perform quality work…read more 10/10 recommend. Will be referring to all family and friends.

From the owner: At All American HVAC, it is a blessing as a local, family owned company to provide the highest…read morelevel of HVAC service to Lake County and all of northwest Indiana. We ensure your family is comfortable, safe, and treated like family. From indoor air quality products to help with allergies, to a new air conditioner to deal with the summer heat, we have you covered. Our customers are truly what makes us great.

This is a great company. My boiler stopped working and they got my heat working again. They could…read morehave told me I had to put a new pump on, but they fixed it and showed my husband what to do if it stops working again. I've used them before and will use them again they are a very honest company.

I've used Rearick's for several jobs over the years. Most recently, I had a new AC system…read moreinstalled. The workers were prompt, polite, and very professional the whole time. When they finished the work, they left every area they work in, clean and tidy. I'd recommend them highly, any day of the week!

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.

It's good to meet good people, the person that I talk to in the office was very helpful said she…read moredidn't have an opening but called me back when she did, the technician was straight forward and matter of fact not only did he fix the problem but inspected the whole furnace before leaving great value and completely worth it!!!! Any furnace issues I'm calling STI first!!!!

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

Timely, friendly and knowledgable repair team. Thanks for helping me out in less than 24 hours.read more

EcoEdge is great! I have used their services for over 10 years. We just had a new furnace and air…read moreconditioner installed and you can't beat their prices. Knowledgeable and trustworthy!

ExoEdge Systems LLC was sent to my home to service the air conditioner. Instead of focusing only on…read morethe unit, their technician attempted to walk through the house and claimed he needed to check every vent in every room. When I declined, the technician later reported on the number of pets in my home which was unrelated to the service call. I invited this company in with the expectation of a professional HVAC repair, not a house inspection. I felt misled and uncomfortable. A contractor should respect boundaries and stick to the job they were dispatched for.

Wow. What can I say?We have been living on kerosene heaters for the past couple of weeks. I have…read moreconsulted with so many HVAC guys just in the last couple of days. Everyone was expensive. Everyone else suggested to buy a new furnace. Lenard fixed our problem that none of the other guys were able to at a fraction of the cost!! Most importantly, he is very trustworthy walking you through every step of what he is doing. He shows you that the equipment he is installing is brand new, calls the warranty company first before giving you a quote just to make sure that parts are covered . His goal is to save you money. He does not see why a perfectly working furnace should be replaced when he can still salvage it and bring it back to a good working conditon I don't know why of all the places on Yelp I randomly picked him and i thank the HVAC gods I did:). I will be a repeat customer and I will be recommending him to my family and friends. If you have been told by an HVAC guy to replace furnace, ask Lenard first. Don't just go with that recommendation yet. Trust me, give this guy a call and you will not regret it.

Pioneer Heating and Air came through again for us! This year there was a problem with our air…read moreconditioning unit outside and Lenard came explained the issue and gave us tips on keeping up with regular maintenance. I was really concerned we needed a new unit and was stressing about the cost. Lenard saved the day with great work and good pricing! I didn't even have to go a whole 90 degree day without air conditioning