• Duct work (spiral, duct board, flex, custom fabrication)
  • Complete ventilation systems, makeup air units, evaporative coolers
  • Exhaust Systems, piping, chillers, boilers, pumps, expansion vessels.
  • Direct fired heating units, cooling towers, energy management systems
  • Precision Cooling
  • VAV Systems
Design/ Build
  • Title 24 compliance, mechanical pans, blue line drawings
  • Chiller and cooling tower systems designed for space conditioning and manufacturing processing
  • Design HVAC multilevel commercial needs, hot water reheat, heat pumps with evaporative coolers and boiler integration
Energy Management
  • Install, Service and Maintain all major systems; Honeywell Excel, 
    Johnson Metasys, etc.
  • Monitoring complete building automation (lighting, fire systems, ventilation)
  • Pre-audit of HVAC system and capital expenditures needed for maintenance

Sheet Metal Fabrication

  • Duct, insulated and un-insulated
  • Fittings for Heating, Ventilation, and Air Conditioning
  • Forming, bending, punch pressing
  • Computer controlled laser cutting
  • Welding and assembly
Cooling Towers
  • Sales and installation

Call us at 978-649-4550 or contact us for more information. 

Challenger 3000 - 60Hz

single duct terminal unit

Turn-Key Engineering Inc.
HVAC Mechanical Contractors
141 Middlesex Road Unit #13
Tyngsboro, MA 01879
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