Residential

Tri State Mechanical is a Residential Air Conditioning repair and replacement company.  Since 1989 every customer has been given one promise, "Your Satisfaction is 100% Guaranteed." To this date 1000s of local homeowners and have come to count on this promise. Our business is keeping you comfortable with the latest in air conditioning technology. Saint Louis Air [...]

Sheet Metal and Galvanized Duct Work Fabrication and design of most common type metals are fabricated within our shop or on site which means you save. Everything is designed within required SMACNA Standards. Galvanized steel is the most common type of sheet metal used in the construction of Residential, Commercial and Industrial HVAC Duct applications. [...]

LACLEDE GAS COMPANY RESIDENTIAL HIGH EFFICIENCY REBATE PROGRAM The Residential High Efficiency Rebate Program provides rebates to residential owners and customers of Laclede Gas Company and Missouri Natural Gas Company for the installation of high efficiency heating systems and thermostats: TERMS AND CONDITIONS Programmable setback thermostats purchased and installed prior to February 26, 2011 must [...]

At Tri State Mechanical we service, repair, maintain and replace all kinds of furnaces.  We handle every brand and type of commercial furnace and residential furnace.  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 [...]

How Clean is Your Indoor Air? According to the Environmental Protection Agency, the air inside your home can be as much as 100 times more polluted than outdoor air. To make sure that your indoor air is as healthy as it can be, Tristate offers a complete line of indoor air purification systems from air-quality [...]