McMullen’s Refrigeration & Heating Ltd was started in 1961 in a small residential garage in the Mountview area of Red Deer. Today, when people think about McMullens Heating & Cooling, they recognize a company that’s grown to over 24 employees with three trades on staff. In the early years, only commercial refrigeration service work was performed, but as word spread, the demand for heating and plumbing services quickly followed. Now McMullen’s Refrigeration & Heating Ltd offers commercial refrigeration, heating, and plumbing, while specializing in residential furnace change-outs, residential plumbing service with our “plumbing parts warehouse on wheels,” and hot water heating upgrades.