Lineman's Testing Laboratories of Canada (LTL) is a privately owned Canadian company specializing in the utility, forestry and industrial sectors. Established in 1958 as a leading high voltage electrical service provider, LTL has diversified and expanded over the years and today offers the services of three divisions: Power Technical Services (Electrical Engineering & Substation Services); LTL Utility Supply; and, NAIL-accredited High Voltage Testing, Calibration and Factory Authorized Tool and Equipment Repair Services. LTL represents national and international manufacturers, and stocks an extensive inventory of insulating rubber goods, personal protective equipment, utility tools, pole line equipment and electrical apparatus, while offering product recertification and calibration in its full service NAIL-accredited high voltage testing laboratories. LTL successfully maintains a loyal customer base across Canada and is recognized and respected for its integrity, and long-term business relationships. LTL provides quality products, comprehensive electrical services, and cost-effective solutions with sales offices across Canada, as well as distribution centres and high voltage testing facilities conveniently located in Toronto and Edmonton. We have the skills, knowledge and tools to ensure you are compliant.