| Labour | Management |
| Ontario Pipe Trades Council Neil McCormick 930 Sheldon Court Burlington, ON L7L 5K6 Tel: 905-631-8989 Fax: 905-631-9055 Email: optc@sympatico.ca |
Mechanical Contractors' Association of Ontario Steve Coleman 10 Director Court, Unit 103 Woodbridge, Ontario L4L 4S5 Tel: 905-856-0342 Fax: 905-856-0385 Email: steve.@mcao.org Web Site: http://www.mcao.org/ |

