Copper brewhouse vessels hanging over the bar at Sacred Profane in Biddeford, Maine, a Mash Mechanical project.

Scarborough, Maine · Since 2017

Commercial HVAC/R, engineered and built right.

An engineer-led mechanical contractor for Southern Maine healthcare spaces, restaurants, schools and commercial buildings.

Need service now? Call 207-289-6000.

Sacred Profane, Biddeford · Photo by Powers Media House, courtesy of M.W. Hoss Construction

Trusted by Maine businesses and builders

  • Thornton Academy logo
  • Inspire Dental of Maine logo
  • Allagash Brewing Company logo
  • Leeward logo
  • Springer's Jewelers logo
  • Varney Agency logo
  • Northland logo

Led by a Professional Engineer · 20+ Person Team · Serving Southern Maine

What our clients say

Mash has done a few projects for us. They are responsive when we've had questions and the quality of work has been excellent.

Peter Heggeman

For general contractors & architects

The mechanical sub you don't have to chase.

Dependable schedules, clean trade coordination and systems your client's team can actually maintain. We read the drawings closely, ask questions early and show up when we say we will.

Invite us to bid →
“If you have complex commercial HVAC controls, equipment, ductwork, or overall coordination issues, Mash is the team you want on site. They are professional, solution-oriented, and genuine masters of their craft. Mash is my first choice for an HVAC trade partner.”
Jeff Handley, GC Superintendent, Optimum Construction Co.

Built with

  • M.W. Hoss Construction logo
  • Optimum Construction logo
  • Zachau Construction logo
  • Great Falls Construction logo
  • Benchmark logo
  • Doten's Construction logo
  • KMK logo

Our core values

Do what's right.

Mash Mechanical started in 2017 to do HVAC/R the right way. We've grown since then into mostly commercial work, but three things haven't changed:

  • Do what's right.

  • Enjoy what you do.

  • Be better everyday.

More about us →

Now hiring techs

Join our team.

$30–$50 an hour, fully paid medical, and new vans.

See open roles

Got a project?

Send us the scope, the schedule and whatever drawings you have. We typically respond within one business day.