Hammer Heads is our way of making communities better through training. 10 Reasons to be Unionized. Welcome to the COBT website. The Central Ontario Building Trades represents over 80,000 skilled trades men and women in Central Ontario. It co-ordinates the efforts of the affiliated local unions to ensure that all workers in the construction industry receive fair wages and benefits.

Established in 1967, M-L FIRE has been providing essential Life Safety Services for over 45 years within the Greater Toronto Area and the Golden Horseshoe. Fire Standpipe and Hose Systems. Related Fire and Life Safety Equipment. Highly Trained and Experienced Staff. Quality Inspections, Repairs and Preventative Maintenance. Multi-trade Contractor servicing Industrial, Commercial,.

The many technical, commercial and environmental benefits of the Pipe Trades and maximize their use in the construction industry. Our jobs with skill, dedication and craftsmanship. In our work, our community, and most importantly, our union. Our members, our students, and the public is paramount. PLUMBERS, STEAMFITTERS, WELDERS, SPRINKLERFITTERS AND REFRIGERATION TECHNICIANS. Read the Latest OPTC News.

The work we perform is in the air conditioning, refrigeration and mechanical systems industry. We welcome applications to our Local Union and training facility year-round. We have the best trained craftspeople in th.