Heating & Air Conditioning / HVAC near Sauget

“McGinnis replaced my whole HVAC system including new duct work throughout the house. They did an excellent job for a fair price, and the work was completed within the time frame they promised. It's no wonder they've been in business for so long and have a great reputation. They were recommended to me, and I'll now recommend them to others.“

“After Dependable HVAC Clean's cleaned our ducts, we noticed an immediate improvement in the air quality in our home... No more dust and allergens! I really appreciated..!!“

“Tommy did an excellent job doing a tune up on my HVAC. Efficient and informative of what was going on.I would recomend Hoffmann for all of your repair needs“

“I would recommend this company, I have used them twice for different reasons and they are always professional, quick, knowledgeable. They are a joy to work with from beginning to end.“

“I was in the process of selling my home and I needed repairs done due to the home inspection. I was in a bind and a few days from my closing date with the possibility of loosing the sale. I called several HVAC companies with my situation and they were all too busy which was true as it was very hot for a long period of time. THEN I called Seliga Heating and Cooling and they were crazy busy too! However they were understanding and had a technician out the NEXT DAY and Fixed Everything!! I couldn’t believe it. Incredibly Customer Focused Company! I’ll never call anyone else. .....I just used Seliga again at my mothers home and they installed a new Furnace & A/C unit and did a great job Again! Wayne B. Joe F. and Lawson H. were very professional,knowledgable and friendly to work with!“

“Thank you for the service! I called on 12/4/25 and they sent out Technician, Ryan the same day. I am giving Ryan and the company this review because Ryan went above and beyond to repair my boiler issue. He was knowledgeable, concerned and very pleasant. He answered and gave input to my questions. I highly recommend this company and Ryan the technician to handle your heating & cooling needs.“

“This is our third time using Bart Inman. Always prompt and courteous technician's.
They have saved us a few times. And a couple of times have gone above and beyond for us. We are completely satisfied and dedicated to them. Completely worth a call !!!
P.S. This time we replaced the whole AC/And furnace.“

“This is a no nonsense business that gets the job done very professionally and efficiently!! The installers Deonte and Eric were absolutely amazing. These two are a true asset to to the company and their workmanship is exceptional!“

“Adam and his team are amazing! Super nice, professional and a pleasure to do business with. Highly recommend. 10/10“

“Very impressed with the whole process, from the estimate through installation and follow up. Highly recommend Matheny.“

“My family, friends, and I have consistently been using St. Louis heating and AC recently on a few different installs now over the past year. All have been great experiences.

A couple weeks ago I also got a whole new HVAC unit. So far it has been great, and zero complaints. Overall the team that came out to do the install, did a fantastic job with their work and all were exceptionally professional. Couldn't be happier with the work done.

Lastly, The Wells Fargo financing options offered also significantly helped make this a pleasant experience.“

“Eric from Xcell Williams Heating & Cooling stopped by today. He got me signed up again for their seasonal maintenance special. As usual, he did an excellent job with my furnace maintenance. He was professional, thorough, and friendly. I love this company—they’re the best!“

“Great company....friendly, professional and job well done. They were very good at cleaning up and disposing the hot water heater. I would HIGHLY recommend this buisness. My warranty covers the majority of cost..couldn't be happier. I had to get a up to code and out of pocket was reasonable.“

“I was having a minor A/C issue and Unique sent someone out the next day. My tech was helpful, informative, honest, and took care of the issue quickly. Just a nice company to work with.“

“Technicians were very professional and friendly. Worked quickly and efficiently.
System operates quietly and at lowest cost of multiple bids“

“What wonderful group young men Zack Sam Joe and Nick that came out and put a new boiler in our house and a old man all day“

“Koesterer answered the phone when we called (something you don't get from a lot of businesses these days) and they responded quickly to our needs. The job was done quickly and no mess left behind. You can't ask for more than that from a service company. I would certainly recommend Koesteter Heating and Cooling.“

“I've been using Nick Dolinic Heating and Cooling for more than 15 years, and I can't recommend them highly enough. Their customer service has always been outstanding—friendly, professional, and responsive whenever I've needed assistance.

What sets them apart is their reliability and consistency. Whether it's routine maintenance, repairs, or emergency service, their team always arrives promptly and gets the job done right the first time. On several occasions when I had an urgent HVAC issue, they responded quickly and helped restore comfort to my home without delay.

Their pricing is fair and transparent, and the quality of their workmanship is excellent. I appreciate that they take the time to explain the work being performed and never try to sell unnecessary services. They also do a great job with follow-up after service visits to make sure everything is working properly and that I'm completely satisfied.

After 15+ years as a customer, I continue to trust Nick Dolinic with all of my HVAC needs. If you're looking for a company that delivers exceptional service, quality work, fair pricing, and dependable support, I highly recommend them.“

“I have used these guys for years! They are absolutely amazing. I noticed our furnace stopped working and so I called a little bit ago. Alex helped me get it back up and running! Thank goodness in these sub-zero temperatures. Love love love these guys!“

“Had issued with heat not working. Austin came and fixed it replaced ONLY what was needed. He was honest and did a great job. Highly recommend!!!!!“

“Arranging service was easy during very hot demanding time. Excellent service. Competitive fees. Absolutely no complaints. Will be my first call for future service.“

“I really love this company they do good and reliable work, one flaw when you call them to take care of a problem the technician starts working on the problem, before talking to you about the problem and how much it will cost, so make sure you tell the technician to give you a quote before starting work, If it wasn't for this Act I would have given this company a 5 Star Rating.⭐⭐⭐⭐⭐“

“We have had excellent service with Mertens for the past 30 years. They are all so very knowledgeable, friendly and fantastic to deal with. We have had most every service completed by them from new install HVAC, whole house humidifier, maintenance and repairs. I highly recommend them. They are like family to me now.“

“Mr. Mauller has been taking care of my heating and cooling system for many years. This company does a very good job. I highly recommend it!“

“They looked at all of our concerns and checked into them and fixed everything. They were in and out quickly and seemed to be knowledgeable. They cleaned up after themselves and were very polite.“

“Very well equipped. Knowledgeable personnel. Experts in their field. Great service.“

“Brad did a wonder job on my AC unit. Called Haberberger to come out to my home to conduct an investigation to the reason my AC unit wasn't cooling. A guy by the name of Brad came out who concluded the pipes located in the closet of my home had holes in it that leaked freon from it. He torched the pipes that ultimately sealed the holes then he covered the pipes with insulation. He used a machine to vacuum the air out of the pipes and any other matter. My AC unit outside my home was water hosed down to clean the coils. Brad was efficient, informative , professional, and did a thorough job. Thank you for detecting the root issue of my AC problem. My family and I won't have the issue of freon fumes floating throughout our home anymore nor will we be hot inside our home on a sunny scorching day. Feeling extremely blessed!“