When Performance Counts


Cox Engineering Company is a Boston based union mechanical contractor providing professional construction services and innovative solutions to HVAC projects in the New England Area.  We self-perform sheet metal and HVAC pipe and work with our in house custom air-handling division to offer inventive solutions to challenging HVAC requirements. Cox serves the plan and spec market in demanding industries such as pharmaceutical, bio-tech, hospitals and commercial renovations that require engaged commitment and performance excellence.


Liberty Mutual Fit-Out Complete


“I would like to take this opportunity to thank Cox’s team for making this a successful project for Turner/Liberty Mutual.  I hope it was a successful project for Cox as well, look forward to working together in the future.”

-Turner Project Superintendent