hup! Walls

The wall system behind every hup! extension

Why the standard rarely slips

A patented hup! wall is built from timber, steel and insulation in a single, engineered structure rather than separate trades layering materials on site one by one.

Brick finish for hup! build for large family home

Light and spacious home extension with blue lounge chair

Patented Ultrapanel technology

The Ultrapanel used within hup! walls is made from a patented blend of timber, steel and insulation. This innovative combination sets it apart from other modern construction methods, creating a highly durable and thermally efficient structure without cold bridging.

Rapid construction

The rapid clip-fit system used across hup! walls and roofs allow your extension to be built up to five times faster than traditional methods. With installation possible in any weather, a small extension can be erected and made weathertight in just 2–3 days, avoiding typical delays.

Light and slim

Thanks to their lightweight design, hup! walls can often be installed onto an existing base, unlike heavier brick construction, which usually requires new foundations. Their reduced thickness also means you can gain 10–15% more internal floor space while making it easy for builders to handle, helping speed up the overall build.

Side view of 3D render image of hup! home extension

Energy Efficient

hup! walls achieve impressive energy performance, delivering up to 6% better efficiency than a standard Building Regulations compliant wall, due to the high level of insulation within each panel.

Controlled manufacturing, consistent results

Because hup! walls are manufactured under controlled conditions and carry BBA approval, the quality of a Barnsley extension matches the quality of any other hup! project nationwide.

Start your project

Spacious kitchen extension with oak countertops and lantern style roof

Still entirely your choice on the outside

Modular extension cost covers the system, not the look. Any wall finish, including brick, render or cedar, and any window and door configuration can sit on top of the same approved structure.

Explore wall finishes