Locally Owned & Operated
Lewis Mechanical Sales logo
Enviro Tec Logo
Enviro Tec logo

          Steve Lewis LLC dba

361-882-2233

Enviro-Tec




Since 1979, the ENVIRO-TEC brand has been an industry leader for innovative design and superior performance. Our complete line of zone control airside products for the commercial HVAC industry includes Variable Air Volume (VAV) terminals and controls, fan coil units, blower coil units, indoor air-handling units, and indoor packaged equipment.

VAV Systems

Fan Coil Units


Blower Coil Units


Vertical Stacked Heat Pumps


Enviro-Tec 


Manufacturing Flexibility 
Flexibility is our key to satisfying a rapidly changing market. We meet this challenge using vertically integrated manufacturing. With less than 20% of our products' components being supplied by vendors, we have created a level of autonomy unparalleled in the industry. The results are timely deliveries, precise quality control, and competitive prices. ENVIRO-TEC products proudly carry the blue production label of the Sheet Metal Workers' Association, of the AFL-CIO, CLC.

Engineering and Research
For us, product integrity is a top priority.  That's why we've invested in one of the most sophisticated design and research laboratories in the industry.  All ENVIRO-TEC products are developed using the finest test equipment and sound evaluation facilities available.  As an AHRI participating manufacturer, our products are also tested and evaluated in strict accordance with AHRI standards.

Peace of Mind
33 Years of Combined Experience

Call Us Today for Your Next Project

Single Duct Variable Volume and Constant Volume Terminals 100 - 8000 CFM
Cooling Only, Electric or Hot Water Heat
Low Height Models Available

Series Flow and Parallel Flow Fan Powered Terminals 100 - 4600 CFM
Cooling Only, Electric or Hot Water Heat
Low Height Models Available

Fan Coil Units
Models Include: Horizontal, Vertical, Vertical Hi-Rise 250 to 2400 CFM
Concealed Models or Cabinet Models with Powder Coat Finish

Belt Drive Blower Coil Units 600 to 5,000 CFM
With Electric or Hot Water Heat

Indoor Air-Handling Units 1000 to 9,500 CFM
Plenum or forward curved fan options
Horizontal and vertical configurations

Indoor Packaged Equipment
Vertical Stacked Water-Source Heat Pumps