24/7 Emergency Dispatch — Online (416) 609-9290
Our Story

Built to keep facilities running

For over 25 years, M.R.B Mechanical has engineered, installed, and maintained the plumbing and HVAC systems that commercial and industrial facilities depend on every hour of every day.

Commercial HVAC rooftop units at blue hour

A contractor you can build a schedule around

We were founded by journeymen who believed facilities deserve a mechanical partner that shows up, documents the work, and stands behind it. That ethos still drives every dispatch.

Today our crews cover plumbing, HVAC, refrigeration, and preventive maintenance — backed by a 24/7 dispatch line and a project engineer on every job.

25+
Years in operation
60+
Certified technicians

What we stand for

Safety first

Every crew is OSHA-trained and every site follows strict lockout-tagout and confined-space protocols.

Certified craft

C-36 plumbing and C-20 HVAC licensed, with factory-trained technicians on every major equipment line.

Long-term partnerships

We build maintenance relationships that span decades, not transactions.

Efficient by design

We size and tune systems to cut energy waste and keep facilities compliant.

Our timeline

1998

Founded

M.R.B Mechanical opens as a commercial plumbing shop serving the industrial corridor.

2006

HVAC division

Expanded into commercial and industrial HVAC with a dedicated climate-control team.

2014

24/7 dispatch

Launched round-the-clock emergency response for mission-critical facilities.

Today

1,200+ facilities

A full-spectrum mechanical contractor trusted across manufacturing, healthcare, and commercial real estate.

Partner with a mechanical team that lasts

Let's talk about keeping your facility running for the long haul.

Get in touch