• 24/& HVAC maintenance and repair
  • Mobile Welding Sevices
  • Preventative maintenance plans
  • Combustion Analysis
  • Liquid Propane
  • Building Automation, Pneumatics and Commissioning

Our clients satisfaction is number one.

We are pre-qualified contractors with the YRSDB, YCDSB, DDSB ,Town of York Region, and several others.

Proud Members of Union  Local's 46 and 787.

MSB is diverse and able to tackle your needs whether large or small.

From new construction, additions, renovations and maintenance projects we treat every job with the same level of importance and care.

Our portfolio includes the successful construction of schools, commercial buildings, office complexes, and more.

Service contracts with the YRDSB and YCDSB.

completed Projects


Established in 1982 with extensive commercial, institutional and industrial contracting experience. 

Projects including new builds, renovations, plumbing, heating & boiler installation and servicing, rooftop and air handling units,  emergency on-call services and preventative maintenance plans.

Well established and respected for our dedication to provide unwavering client satisfaction with certified tradesmen, consisting of plumbers, gas technicians, oil technicians, steam fitters, refrigeration mechanics, controls technicians, electricians and welders.

We have the team you need to get the job done right.



A division of MSB

our services

  • Complete building plumbing & HVAC systems install
  • Design/build mechanical systems
  • Riello, EnerPro and Fuel Master Certified Boiler Technicians
  • Oil Burner Technicians
  • Natural Gas line Installations

get the job done

What's more important than a deadline? Nothing.


We love nothing more than to help our clients deliver the job they expect by working hand in hand with all parties. We have a proven track record of making that happen, even under the most intense deadline pressure's. Let us manage the details that trip up most big construction projects so that your fate isn't with those who didn't plan for success.


msb team & history