Clow Darling LTD

About Us

Clow Darling started business in Fort William (now Thunder Bay) in 1937 when Bill Darling and Emerson Clow purchased the local branch of Darling Plumbing & Heating of Winnipeg.

Clow Darling is now the largest complete mechanical service contractor in Northwestern Ontario specializing in plumbing, heating, cooling, boilers and piping for the industrial, commercial, and residential markets. Our services also include a mobile air conditioning and heating department.