hup! walls and the case for a modular house extension
Every modular house extension we build across Northampton, Milton Keynes, Coventry, Leamington Spa and Stratford-upon-Avon starts with the hup! wall system, combining strong thermal performance with fast installation. It adapts to almost any layout, which makes it a genuinely flexible choice for a modular house extension.
Patented Ultrapanel technology
The Ultrapanel system used within hup! walls combines timber, steel and high-performance insulation in a unique patented design. By combining the strength of steel, the versatility of timber and exceptional thermal efficiency, Ultrapanel creates a robust, highly insulated structure that minimises thermal bridging and delivers outstanding energy performance.
Rapid construction
The rapid clip-fit technology used in hup! walls and roofs mean that your new hup! extension can be built up to five times faster than a traditional build. Built in any weather a small extension could be built and watertight in 2-3 days without any weather or scheduling delays.
Light and slim
Due to their lightweight nature, hup!'s walls used in a modular house extension can be built on top of an existing base, unlike bricks and mortar which would be too heavy and require a new base entirely. hup! walls are also incredibly light so are easy for our installation teams to handle, contributing to the speed of the build.
Finally, as they are slimmer than a traditionally built wall, hup! walls create a floor space that is 10-15% larger than one with brick walls.
Energy Efficient
hup! walls are 6% more energy efficient than a fully Building Regulation compliant wall thanks to the large proportion of super-insulation in the panels.
What shapes the price of your extension
What drives modular house extension costs?
Park Lane Windows manages design, planning and build as one team, so several trade handovers disappear from the schedule entirely - a key factor when considering modular house extension costs. hup! walls and roofs are manufactured off site to a fixed specification, helping to provide greater cost certainty once the build starts rather than allowing costs to creep upward as they can with a traditional extension.
hup! technology | A lifespan that's been tested, not just claimed
The patented Ultrapanel system carries a minimum 60-year life expectancy, awarded by the British Board of Agrément (BBA) following independent testing and assessment. It's not simply a figure we've come up with ourselves - the system has been independently tested and verified, giving you confidence in its long-term performance.
hup! technology
The Ultrapanel technology at the heart of hup! is ground-breaking.
hup! walls
hup! walls are the foundation of every modular house extension - energy efficient, fast to build and placed anywhere in your design.
hup! roofs
hup! comes with four roof choices for complete design flexibility.
Windows & doors
hup! is compatible with a huge selection of windows and doors.
Wall Finishes
Personalise your modular hup! extension with an external wall finish that truly reflects your style.
Any questions?
We are proud members of the hup! partner network.Choose us as your trusted hup! experts
What are hup! walls constructed from?
How long do hup! walls last?
What drives modular extension cost?
Still need help?
Visit our advice hub to find answers to questions, useful tips, and more