In 1988 Henry Thomas set up a company manufacturing commercial aluminium doors for the trade. The business grew, and in 1995 the company was renamed HTL. Terry Lewis joined the company in 2001, as it diversified into automation of their door products. HTL has continued to grow and now offers a complete portfolio of door & window products and services. HTL are the sole UK distributors for certain key American & European automation products and continue to expand their range.