The revolutionary hup! building system explained

Patented hup! walls, BBA approved performance, and manufacturing precision that sets the hup! building system apart from any traditional build method

At the heart of every Fortress hup! project is the revolutionary hup! building system: a patented approach to construction that delivers exceptional speed, energy efficiency, and build quality. Designed and manufactured by Ultraframe, it is changing the way Chester homeowners think about extending their homes.


Patented Ultrapanel technology

hup! goes further with Ultrapanel technology. This groundbreaking technology combines the best of both timber and steel framing building technology with exceptional insulation properties.

With U-Values of between 0.12 and 0.17 that significantly exceed Building Regulation requirements, a hup! extension is five times more energy efficient than the average UK home.

For homeowners across Northwich, Neston, Ellesmere Port and Cheshire, this means an extension that is not just faster to build, but measurably superior in performance to anything conventional panel construction can deliver.

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hup! technology in 3D render

Super-strong i-beam structure

The hup! wall panels are 68% stronger than a brick wall thanks to the collective force of the panels, which rapidly clip together to form a super-strong i-beam structure throughout your hup! extension.

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hup! extension in 3D render image

Rapid connection details

hup! millimetre precision engineering and patented wall and roof connections will ensure a perfect build with no cold spots. The rapid clip-fit nature of these clever connections across the roof and walls means that a hup! extension is built five times faster than a traditional build.

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Exterior render view of hup! extension

Patented hup! walls built for performance

Patented hup! walls are constructed from a patented combination of timber, steel and insulation, manufactured under controlled conditions for consistent quality and precision. Every panel is produced to exacting standards before arriving on site in Chester, which is why the hup! building system is typically watertight in less than a week. Zero waste in production and on site is an additional benefit that homeowners across Cheshire increasingly value.
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Cheshire home extension with open plan living

Accredited, proven, and built to last

The hup! building system carries BBA approved status and ISO 14001 environmental accreditation. Ultrapanel technology has a 60-year lifespan, giving Chester and Ellesmere Port homeowners genuine confidence in the longevity of their investment. The system is pre-approved by leading Building Control inspectors, which helps streamline the Building Regulations process and keeps your project moving without unnecessary delays.
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Modern Chester home with colourful decorative furniture

Tried and tested by UK Housebuilders

The Ultrapanel technology used in hup! has been adopted by leading UK housebuilders to construct new houses. Every building material used on a new house needs approval from the NHBC who insure all new homes and the hup! technology has therefore been thoroughly assessed and accredited by both the BBA and the NHBC.

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