Managing director Stephen Pitt founded the company, which supplies BCS and Camon machinery in the UK, in 1984. His sons Alex and Anthony also work for the firm.
Marketing director Alex Pitt said: "With the dealer network now established around the country, turnover has tripled.
"In the past two years we have had great success with snow-clearing equipment and we are excited about new growth opportunities as we take on the distributorship for a Spanish company."
The new facility, next door to the company's building on the Victoria Industrial Estate, has a design suite, spare-parts stores and a showroom.