St. Louis Most Trusted Commercial Hvac Service

Specializing in HVAC Repair, Sales & Installation. Our Quality Commitment Is First Priority.

As a full-service Energy Conservation contractor, we provide Complete Solution, Factory Certified installers and Competitive rates.

Whether it be New Construction, Hvac Maintenance Service, Upgrades or Emergency Service you can rely on us as your long term partner for quality and dependability.

  • We service all brands, types and sizes of HVAC systems including: Furnaces, Air Conditioners, Glycol Systems, Boilers, Chillers, Roof Top Units, Indoor Air Filtration and Ventilation systems.
  • Our workmanship is guaranteed and backed by our company name that has been serving the St. Louis Metro, Central Missouri and Southern Illinois area since 1989.
  • We maintain extensive records of the services we provide–so you won’t have to.
  • We provide both in-house and factory training and technical support for our technicians. Our support staff has the training, experience and resources to assist the field technician and answer any technical questions they may run into. The technician is free to continue working instead of researching.

tyler 319As a leader in the greater Saint Louis area, your complete comfort and satisfaction are our promise to you. Tri State Mechanical consistently delivers ultimate quality Commercial HVAC services.

Our dedicated team excel in customer satisfaction by always providing our clients with on-time, affordable and professional heating and cooling repair service.

We guarantee only the best service without compromise. Excellence in everything we do is our commitment to you.

Common Project Types

  • Apartments
  • Hotels
  • Condominiums
  • Retail Stores
  • Restaurants
  • Schools/Colleges
  • Churches
  • Warehouses
  • Superstores
  • Malls
  • Office Buildings
  • Police/Fire Stations
  • Golf Clubhouses
  • Senior Housing
  • Retrofits
  • State & Federal Projects
  • Manufacturing Facilities
  • Animal Facilities

Ask about our Maintenance Agreements which are designed to keep you safe, keep equipment running efficiently and save on unwanted service calls. All maintenance agreements are subject to discounted rates and priority service.

For free estimates and 24hr. Emergency Service

Give us a call. You’ll be glad you did.

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