mechanical contractor specializing in hvac, food service equipment, air conditioning & heating installation, sales, service and repair

Barbara Larson Godiva Chocolatier, Inc
Our Soft Serve machine was installed in a very timely and professional manner. The specialist that installed the machine, Greg Bruyere was fantastic! He was informative and extremely helpful in training myself and the associates. He even... Read More >

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Bridget at Pattonville Highschool
The installation of our new freezer/cooler was smooth and trouble free.  We are happy with the finished product and were well informed through the installation process of any changes in the time line due to unexpected conditions.  The crew was efficient, polite, and did not interfere with our daily processes.  We were very pleased with the process from start to finish.

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Stanley’s Cigar Lounge
Thanks again Greg for all your hard work and thoughtful analyzation of our HVAC needs for the humidor at Stanleys Cigar Lounge. Your calculations for the load with all the humidity we are pumping into the room was dead on and it’s working like a champ. Again, thanks, we will be in touch if we need anything else. Best Regard


The trusted provider of hvac services in St. Louis

Reliable HVAC Service You Can Count On

Since 1989 we have proudly served the St. Louis and Metro areas including Central Missouri and Southern Illinois. We provide our highest quality of workmanship everyday as we continue to build long term relationships with our clients.

For Dependable Service, Quality Installation and 1st rate Solutions in HVAC, Refrigeration and Commercial Kitchen equipment give Tri-State Mechanical a call today.  We service everything from rooftop units on a school or commercial building to residential heating and cooling issues.

We have 24 Hour Emergency Service available with an extensive parts stock for all Commercial and Residential equipment old and new. If we don’t have it we’ll find it.