Rob Evans completed his apprenticeship as a fitter and turner in Lower Hutt, New Zealand before joining Lion Breweries to work on refrigeration units. Rob then travelled to Europe with his wife where he worked at the Tower Hotel in London servicing air conditioning and mechanical equipment. Upon returning to New Zealand, Rob worked for Colonial Mutual Life Assurance as a technical resource to the Property Department in Wellington.
From 1983 until 1999 Rob ran the air conditioning and mechanical services team at Heat Pump Engineering Ltd. Eventually, Rob purchased the business along with two partners. In 1999 Rob sold the company to Tyco International Group, but stayed on to operate the service and contracts in New Zealand as Climatech. Rob became the General Manager during this time and oversaw 14 branches across the country.