A structural insulated panel, or SIP, is a composite building element consisting of two outer facing boards bonded to a rigid insulation core. It simultaneously functions as the structure, insulation and air barrier of the wall in a single, precisely manufactured component. The hup! system uses SIP technology as the core of every extension, delivering speed, thermal performance and structural precision that traditional methods cannot match.

hup! wall panels are engineered to achieve U-values well below the maximum permitted under current UK building regulations (Part L). The exact figure depends on panel specification, but the thermal performance is consistently superior to a standard cavity wall construction of considerably greater thickness, making every hup! extension in Worcestershire a genuinely energy-efficient addition to your home.

hup! panels are manufactured using the Ultrapanel system in a controlled factory environment, produced to exact tolerances for each individual project. Once manufactured, the panels are delivered directly to site and installed by trained hup! network partner teams. The off-site production process ensures consistent quality, eliminates weather-related delays during manufacture and means the on-site installation phase is clean, fast and requires fewer trades than a traditional build.