HVAC reviews in St. Louis, Missouri

Full HVAC replacement. Fast. Professional. Very fair rates.

We’ve used MERTENS for as long as we’ve been in this house (20+ Years) for installation, maintenance and today, repair. When I noticed the AC wasn’t cooling they came out within an hour. Tim had the problem diagnosed and fixed in an hour. This is the caliber of service we’ve come to expect from MERTENS and why MERTENS is our go-to HVAC firm.

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.

Very professional, very reasonably priced and fixed our AC issue, saving us a lot of money. Highly recommend!

Had a company come out to add a vent and was quoted hundred of dollars more than Glosemeyer. Glosemeyer came out within the week and completed the work for an amazing price. They did a great job and were the nicest people. Support this family owned business they are top notch!

Good people.

Excellent customer service

Just amazing all the way around

Glosemeyer mechanical are my go to people tony is the best

They go the extra mile, work extremely hard, and are just great people.

Extremely unprofessional and unreliable. Do yourself a favor and hire a different HVAC company

I love these guys. They have helped me out in a pinch several times. Air conditioning.. water heater.. you name it.

Been using this company for a long time. Always pleasant experience. Highly recommend!

Did great installing our new heater would definitely use them again.

I absolutely recommend Glossemeyer. Always fair and always show up when we need help quickly. I always trust their price and assessment of our fix.

After waiting several days for them to come over and repeated phone calls no one showed up. I would never recommend this company!

They have always been prompt, knowledgeable, dependable, affordable, and just overall great people!! I would give them 100 stars if I could.

I am a realtor and I have used Glosemeyer for inspections, repairs and installations. I also use them for my own home and investment property. They are knowledgeable, fair and affordable.

Erich did a great job installing my new AC and furnace promptly. I recommend this company to anyone replacing their AC/furnace.

We have used Glosemeyer Mechanical for years for all of our HVAC needs. They are the most skilled and knowledgeable HVAC company in the greater St. Louis area. They have installed new systems, repaired and replaced old systems, and have serviced all of our existing and new equipment and systems. I highly recommend Glosemeyer Mechanical for any HVAC needs. They are the best in the business!

The absolute best! We have used them for years & they are always reasonably priced & professional.