21st century extensions only possible with Ultraframe and Listers

Widely considered the one of the most advanced methods of extending a property, Ultraframe’s Extension Plus range allows installers to offer end users the very best extra living space. Especially when combined with Listers Central Ltd’s high quality engineering and construction methods, all elements of the Extension Plus range come pre-approved by Building Regulations to avoid any on-site troubles.

Engineered using a combination of uPVC columns and glazed windows and doors, this first step to a true extension reaches impressive levels of energy efficiency, coming in at just 1.0 W/m²K as standard.

Extension Cross Section