With 30+ years of experience, Tri-State Mechanical Services is known for providing exceptional reliability in HVAC, Piping, Ventilation, Refrigeration, and Steel Fabrication, to just name a few. Our commitment to quality has been recognized by our many patrons in the St. Louis area. We serve educational facilities, multi-story appartments/hotels, office/residential, commercial and industrial clients. Let us make your next project a success. Since 1989 we have proudly served the St. Louis and Metro areas including Central Missouri and Southern Illinois.

I would like to thank you for taking the time to stop at our website. Please take a moment to read about the history of our company and what we stand for since the beginning. Since 1989, Tristate Mechanical Services has carried on a tradition of impeccable service. Influenced by past employment practices from prior experience with other contractors, it was finally time to create a Quality Service Company with Integrity to make a positive impression in the HVAC and Refrigeration Service Industry.

As a full-service Energy Conservation contractor, we provide Complete Solution, Factory Certified installers and Competitive rates. For free estimates and 24hr Emergency Service, the right commercial HVAC contractor is only a call away. As 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 in 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.

At Tristate Mechanical Services, Inc. we firmly believe that preventative maintenance is the most effective way to assure that your HVAC and/or Refrigeration systems are running at their peak efficiency, and to increase the equipment's reliability. Receive Priority Service with Discounted Parts and Labor Rates. A PMA (Preventative Maintenance Agreement) will provide for the basic care of your HVAC and/or Refrigeration equipment, including routine scheduled inspections and preventative maintenance designed to maintain the equipment's operating efficiency and reliability.

Tri-State Mechanical is a full-service design, build, and maintenance company offering sheet metal fabrication including most common metals within our shop or on-site which enables us to save you time and money. Everything is designed within required SMACNA standards. We're able to design and fabricate custom made ductwork tailored to your building for the greatest benefit in energy efficiency, aesthetics, and budgetary requirements. Galvanized steel is the most common type sheet metal used in the construction of Residential, Commercial and Industrial HVAC Duct applications.

Commercial Refrigeration has been our specialty for almost 30 years. We know how important it is to minimize down time and to keep your business running efficiently. Knowing you can rely on quality service to maintain your equipment is invaluable. We develop the kind of relationship you can depend on. Design, Sales, Installation and 24/7 emergency service with an inventory of parts to help you save. We're a trusted refrigeration contractor that works in excellence for our customers. We proudly serve the St. Louis and Metro areas including Central Missouri and Southern Illinois continually meeting our clients highest expectations.

At Tri State Mechanical we service, repair, maintain and replace all kinds of furnaces and boilers for Home and Business. We work on natural gas furnaces, electric furnaces, propane furnaces and oil furnaces. We understand that a heating emergency can happen suddenly without warning. This is why our expert technicians are available 24 hours a day, seven days a week to provide fast, reliable, affordable heating repair. As a full-service energy conservation contractor, we provide complete solutions, Factory certified installers, and competitive rates.

For efficient and trouble-free operation, today's commercial & residential air conditioning applications require a technician with wide-ranging knowledge and technical skills. From standard central AC systems to package roof top units and sophisticated chilled water systems, our technicians can service all makes and models. We serve the entire St. Louis Metro area 24 hours a day, 7 days a week. Our hvac service department is even open on Saturdays and Sundays for emergencies. We are standing by to offer you fast, affordable, friendly service for your home & office.

Tri State Mechanical is the Saint Louis are rep for Advantix Systems Liquid Desiccant Dehumidificationt. This system and it is the only wet desiccant system that actually provides 100% dehumidification and separate cooling form the outside air. It can be installed for any application needing dehumidification such as commercial pools, surgical centers, hotels, churches, assemblies, schools, office space, manufacturing facilities, laboratories, etc. Advantix's clean tech air conditioning and dehumidification systems deliver cooling with powerful, precise humidity control, substantial energy savings and cleaner air free of bacteria and mold.

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