hup! Walls

Patented hup! walls for modular house extensions in Chester

Discover how patented hup! walls outperform traditional masonry for modular house extensions across Chester, Saltney, and Cheshire

The wall is where every great extension begins. Fortress hup! uses patented hup! walls across all modular house extension projects in Chester and Cheshire. Built from a patented combination of timber, steel and insulation, each wall panel delivers outstanding thermal performance, structural integrity, and faster build times that traditional brickwork simply cannot match.

Spacious living space extension with sliding doors

Built in a factory, installed with precision in Chester

Unlike traditional extensions where walls are built brick by brick on site, patented hup! walls are manufactured under controlled conditions before delivery to your Chester property. This removes weather dependency, reduces on-site waste to zero, and means your modular house extension can be watertight in less than a week. For homeowners in Ellesmere Port and across Cheshire, that is a significant advantage in terms of speed and predictability.

See the hup! system

Thermal performance that makes a real difference

Patented hup! walls achieve a U-value of 0.17, making them five times more energy efficient than the average UK home wall specification. Whether you are adding a kitchen extension in Chester or a rear extension in Saltney, your new space will retain heat effectively and perform well year-round. The 60% carbon efficiency advantage over brick manufacture means your modular extension is also kinder to the environment.

Explore our wall finishes

Illustration of hup! extension with doors and windows

External finish options for hup! walls

hup! walls are designed to complement any home in Chester and Cheshire, with the flexibility to match existing materials from brick and render to timber and modern finishes.

With expert guidance from Fortress, you can confidently choose a finish that suits your style while aligning with local planning preferences, ensuring a seamless, high-quality result from start to finish.

View our wall finishes