Skip to content
Sheet Metal Building

Find a Contractor

Search for a professional contractor from the second largest SMACNA chapter, OSM

Sheet Metal Worker

Find the Resources You Need

Labour, Government, Education & General Information

Welcome to OSM

WHAT IS OSM? OSM stands for Ontario Sheet Metal Contractors Association.

OSM serves the needs of contractors of all sizes, offering educational and training resources for their members. As the second largest chapter of SMACNA, OSM contractors follow SMACNA standards to produce high quality industrial, commercial and institutional (ICI) sheet metal work.

Mark Your Calendar

Learn More

OSM campaign for Feed Ontario

OSM & Partners raised $50,185 this Holiday season in support of Feed Ontario. We thank those that contributed to the campaign and to all those that otherwise supported their local food banks. We hope you will continue to support these worthy causes.


Check out the current and archived editions of CROSSFLOW

Prompt Payment Ontario - Ontario Construction Act - Trade Contractors Guide

OSM was an active member of Prompt Payment Ontario. PPO has published the Ontario Construction Act Trade Contractors Guide. The guide is free for download.


SMACNA - Ontario Chapter

News from the Chapter


Annotation 2019-05-17 174231

SMACNA Contractor Spotlight:

Lor-Don / Technicair

Annotation 2019-05-17 162335

SMACNA Contractor Spotlight:

Black and McDonald


Read about our Chapter member:

Trade-Mark Industrial in the April edition of SMACNews:

SMACNews - April 2019





Read about our Chapter members:

Dilfo, Heather and Little, Lancaster Group and Lopes Ltd. in the February edition of SMACNews:

SMACNews - February 2019

SMACNA technical resources for members.

Find SMACNA Technical Resources

Find SMACNA Education Events

OSM News

Legislative News