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Black & MCDonald


a proud heritage
william j mcdonald

In 1921, William J. McDonald and William R. Black formed Black & McDonald Limited, a partnership to engage in residential wiring. Throughout the years, Black & McDonald has remained a family-owned business with an uncompromising commitment to the founder’s principles of delivery as promised and fairness to all.

The company has followed a planned course of diversification and expansion, combining growth and financial stability with ongoing investment in our people, and a willingness to pioneer new business opportunities and directions.

Currently, Black & McDonald has more than 5,500 employees operating out of a network of over 25 offices across Canada, the United States, and Bermuda.

Black & MCDonald


    A Proud Heritage
    Duration: 3:01

Black & McDonald's depth of experience has made us the partner of choice across a wide range of industries. To get there took time and effort. Our management team invested in the development of our people, determined to make our highly-experienced tradespeople renowned as the best in their industries.
With over 90 years of documented lessons learned, we are able to consistently apply that knowledge - meeting our customers’ most demanding challenges, in their most critical environments.