Promus London
General Contracting
Promus London is a general contracting company in the Westminster neighbourhood on Midpark Rd.
Black & McDonald Limited
Is this your business? Claim this listing for free to keep your hours, phone number, website, logo and description up to date. Claim this listing
Sign in, or create a free account, and we'll bring you back here to finish your claim.
About Black & McDonald Limited
Black & McDonald Limited is an integrated, multi-trade service provider in the Westminster neighbourhood of London, Ontario. The company serves government, institutional, and industry clients across North America. It manages project and asset lifecycles from initial design and build to ongoing maintenance and operations. The company offers multi-trade construction, facility services, utility services and renewables, and energy and sustainability services. Specific offerings include engineering and design, fabrication and modular construction, nuclear services, and EV charging infrastructure. Facility services include heating, ventilating, and air conditioning (HVAC) services, refrigeration and production heating or cooling, electrical services, plumbing, and cleaning solutions. Other programs include multi-site national account delivery, mobile work order processes, asset management, and energy monitoring services. William John (W.J.) McDonald and William R. Black founded the business in 1921 as a partnership. It began as a residential electrical wiring contractor and remains family-owned and operated. The company operates in sectors including healthcare environments, transportation hubs, data centres, and manufacturing plants.