SFM Wind is a leader in performing up tower Wind Turbine Maintenance and is the only authorized dealer for Sage Oil Vac in Canada. Winergy certified service provider. Up tower gearbox repair with OEM original parts, repair report and warranty. Gear box borescope with Winergy report and recomendation. SFM Wind is a division of Soo Foundry & Machine (1980) Limited which has been in business since 1958. We're proud members of the Canadian Wind Energy Association (CanWEA) and we are ISN Safety Certified.