Heating & Air Conditioning / HVAC near University City

“Great work, very communicative, and quick to respond! They were able to diagnose the problem with my HVAC system quickly and Install a new AC unit in a timely manner with a responsible quote.“

“Tom was great . Appreciated his due diligence in identifying the problem as well as his professionalism.“

“Russell Richardson did a great job getting our AC back on. He was familiar with our unit and quickly diagnosed the issue.“

“Blake was courteous and professional. He was thorough in completing our A/C and HVAC inspections. He answered all of the questions l had and provided understandable answers. Blake took the extra time to enter the attic to check the condition of the insulation and provided options for upgrading.
He has very good customer service skills.“

“Great customer service and amazing response time. Aaron is punctual and courteous and trustworthy“

“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“

“Great Install by Hoffmann Brothers. Both Jon and Ben provided excellent service during our recent HVAC install. We needed some ductwork repair and replacement as well. Jon and Ben used their camera system to find the problem areas to avoid having to demo a lot of drywall to fix our problem. They also tested all components to determine where the problems were and allowed us to reuse the existing AC line set, which saved us even more money. I highly recommend Hoffmann Brothers, Jon, and Ben. They are great!“

“VERY PROFESSIONAL TECHNICIANS WHO ARE GOOD AT THEIR JOBS SO SERVICE & REPAIR GOES SMOOTHLY. HVAC SYSTEM WAS ROOF TOP SYSTEM FOR THE MAIL ROOM FOR OUR CHURCH.“

“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.“

“Brady is such a nice man. He provided quick service at a reasonable price. We were very pleased with his attitude and professionalism.“

“Jack was GREAT. Very detailed and knowledgeable. Explained every step and remediation. Very patient.“

“Very prompt response and very professional and conscientious repair service. Nick did a great job and is a very nice guy.
I apparently have an intermittent problem that did not occur today. Your technician was excellent and system is now working, so I will call if issue recurs. You have terrific associatyes.“

“Been with Vogel for years. Geoffrey came out this morning to get my old AC unit repaired. Very professional, up front, honest, and best of all got it fixed!“

“After getting my information, a technician (Eric) called me back within 10 min. He asked me some questions. Let me know I would get a call in the morning for a time slot. He was even nice enough to contact me same day, evening saying it supposed to cool off, to open windows & turn fans on. It’s a great feeling to have someone go the extra step to advise you of ways to help, until they can get to you. He came out the next afternoon & I’m
No longer sitting in a hot house“

“I purchased the maintenance package. Something I should have done in past years. My HVAC air conditioning unit is 6 years old so that is a pretty good deal. The technicians are all good and knowledgeable.“

“The office girl was amazing, tried to work through my problem over the phone but I couldn’t get it to fix very well so they setup an appointment. Really liked that there app sent me a notice that they were on the way and fallowed it with a phone call. Service tech was very thorough explained every step of the process very friendly explained how much it was going to cost for the repair. Very professional and courtesy. Got my system up and running.“

“Climate Masters is totally there for customers. They have taken care of my HVAC needs for years, and I highly recommend them.The office staff and technical staff are quick to respond, knowledgable, and answer any questions that I have.“

“I am so grateful to have found Aireserve. They are the most talented, professional individuals I have dealt with related to AC service. I was thrilled to find out they also have other services including electrical and plumbing. They were able to identify the problem, create a solution to get our home taken care of including recommending a company to fix all the water damage done by improper installation of AC units from another company.
Prior to this, we had 2 new AC units replaced in our home about 2 years ago from another company. Since the prior company’s install, $40,000 later, we have had to call them back out at least 10 times, due to water condensation ruining our ceiling, AC units shutting off and/or not cooling at all! We kept calling them because we were $40,000 invested and we felt like they needed to make it right. Then this summer season started and they have already been out 2 times due to units not cooling and just last week again units stopped working while adding more water damage to our home. I finally decided that it’s time for a second opinion and we called Aireserve. Apparently, the prior company did nothing to address condensation and water has completely destroyed our attic area, ceilings and walls on the 3rd floor of our 2m dollar home. Now we have to have the ceiling and walls repaired due to all the water damage. Thank goodness for Aireserve identifying the problem and creating a solid solution to finally address this issue, for good!“

“We were able to get both the air conditioner and furnace installed the next day. Everyone was helpful and experienced. They answered any questions we had as they worked. They cleaned up the area when they were done. As a team they worked well together. I highly recommend this company.“

“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!“

“Shawn and Nick are absolutely wonderful to work with. I would 100% recommend working with them. We had a problem with our air-conditioning unit. Called them in the morning and the problem was fixed by that same afternoon.“

“Mohammed was excellent. He worked on our plumbing issues, 5 of them, for five hours, completed them all. Five stars for his work and pleasant personality.“

“I can't say enough how happy I am with this company. Every single person I've interacted with have been helpful, nice and friendly. I bought the maintenance package so I'm covered for one year and 2 cleaning and check ups are included.
Bryan was my technician, what a great man, very helpful, explained everything to me and showed me how to check the system/ change the filter etc. I'll never use another company for my HVAC stuff!!!“

“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.“

“Gabe and Caleb did amazing work on our new basement windows! They were thorough and communicative! Would highly recommend them and Building Envelope Experts!“