Why choose hup! for modern house extensions?

hup! gives homeowners a modern alternative to traditional building methods, combining precision-engineered walls and roofs with high levels of insulation, flexible design and a faster build process.

Whether you are planning a contemporary house extension with large areas of glazing or a design that blends more closely with your existing home, Rex can tailor the hup! system around your space, style and how you want to live.

Five times faster to build

Five times faster to build

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Design flexibility

Ultimate design flexibility

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Energy efficient

Five times more energy efficient

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High quality

High quality finish every time

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Hassle free

One supplier, one project

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Low carbon

60% more carbon efficient

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Watertight in a fraction of the usual build time icon

Five times faster to build

Watertight in a fraction of the usual build time

A hup! extension can be built up to five times faster than traditional methods, with the structure typically made watertight within a week and far less time spent exposed to ongoing construction.

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spacious and modern hup! extensions with bi-fold doors in Kent
Create a modern house extension in the style and size that suits your home icon

Complete design flexibility

Create a modern house extension in the style and size that suits your home

Your house extension can be designed around the style, size and character of your home. Whether you want a sleek contemporary house extension with full-height glazing and a flat roof, or a more traditional design that blends naturally with your existing property, hup! gives you the flexibility to create the look you want.

Choose where you want your windows and doors, select from our range of extension roof styles, and choose an external wall finish that complements your home.

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Maidstone home with bespoke design extension to the rear
High performance insulation built into every hup! extension icon

Energy efficient by design

High performance insulation built into every hup! extension

hup! is five times more energy efficient than the average UK home, helping to reduce heat loss and keep your living space comfortable throughout the year. The system is also designed with sustainability in mind, producing zero manufacturing waste compared with many traditional building materials.

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brick finish home extensions in Kent
A perfect build every time icon

High quality finish

A perfect build every time

hup! is manufactured in a BBA-approved factory under controlled conditions, helping every modern house extension achieve a precise and consistent standard of construction.

Its patented Ultrapanel technology is also BBA approved and has achieved a lifespan rating of at least 60 years, providing long-term reassurance around the quality, strength and durability of your extension.

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thermally efficient designed home extensions
Complete project management from your hup! builder icon

One team from design to completion

Complete project management from your hup! builder

Rex manages the complete project from initial design through to completion, giving you one coordinated team throughout. Advanced design software also reduces the need to organise architects or structural engineers separately.

The hup! system is pre-approved for Building Regulations, helping to simplify the process and keep your extension moving. Clear visualisations, timescales and pricing give you a clear understanding of your project before work begins.

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detached home ground floor extension with render finish
Lightweight advanced building technology icon

Lightweight

Lightweight advanced building technology

hup! walls are lightweight enough for many conservatory conversions to reuse the existing base, avoiding the need for the heavier foundations often required with traditional brick construction.

The lightweight panels are also easier for installation teams to handle, helping speed up the build and reduce disruption around your home. With less material stored on site and a shorter installation period, there is also less impact on your garden during the project.

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bright spacious hup! orangery extension
Cleaner to manufacture, not just faster to build icon

60% more carbon efficient

Cleaner to manufacture, not just faster to build

hup! is 60% more carbon efficient to manufacture than traditional brick, with zero waste during production and on site. It's a genuine environmental advantage that goes beyond simply building faster, helping to make hup! a more sustainable choice for your modern home extension.

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hup! extension with sliding door and hybrid roof

3D render model of hup! technology for extension roofs

hup! technology

Ground-breaking Ultrapanel technology at the heart of hup!

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3D render model of hup! walls

hup! walls

hup! walls are energy efficient, quick to build and can be positioned anywhere within your design.

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3D render model of hup! roofs

hup! roofs

Choose the right hup! roof system for your modern house extension, with four styles to explore.

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3D render of hup! technology for home extensions

Windows & doors

hup! is compatible with a wide choice of windows and doors.

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3D render of hup! technology for extension walls

Wall Finishes

hup! is suitable for any external wall finish of your choice.

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Tested for strength, safety and long-term performance

Independent accreditations behind every hup! extension

Every hup! extension Rex builds in Maidstone is supported by independent testing for structural strength, thermal performance, fire resistance and overall quality. Explore the accreditations in more detail and download the supporting certificates for the hup! system.

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Pre-approved for Building Regulations

Building Regulations, pre-approved

Because hup! is pre-approved for Building Regulations, compliance on your Maidstone extension is quick and straightforward. Stroma, MFA and Assent are the independent Building Control inspectors, and each has pre-approved the hup! system.

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modern extension building regulations
hup! Network Partner logo

Rex are proud to be part of the hup! Partner Network.

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