Thanks to Warm Roof technology, your new living space will be far more thermally efficient and soundproof than a typical conservatory, important when you want to build a room you can entertain or relax in all year round

These single story extensions are a permanent addition to the home and are designed to last as long as the house. Our Warm roof technology is robust, structurally tested and engineered using cutting edge roofing design and proven construction techniques.

Thanks to the flexibility of the Warm Roof we can actually replace an existing conservatory roof, often keeping the existing window and door frames and base work in place. This allows us to completely transform the existing space into something truly aspirational and luxurious. The Warm Roof also allows us to pre-fix Velux roof lights, which both speeds up installation and gives you a perfect finish to your rejuvinated room.

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Warm Roof Reviews

Watch our WarmRoof video to hear from existing customers and see a step by step WarmRoof build coming together with Extra Windows.  You can see every step of the way from our customer design meeting through to the finished conservatory.  You can also hear warmroof reviews from existing customers and hear how the warmroof has changed the way they use their home.

Why a Warm Roof?


The WarmRoof has so many configuration options, you can design the perfect roof for your home which looks amazing both inside and out. What’s more, Velux roof lights can be pre-installed to speed up installation and give a stunning finish.

Energy Efficiency

You want every area of your home to be usable 365 days a year. This is where the WarmRoof comdes in. This energy efficienct roof system will ensure your conservatory is at your ideal temperature all year round.


Our WarmRoof works perfetectly for our new build conservatories. It is also a great option as a conservatory roof replacement as well being an ideal choice to create an energy efficient space for sunrooms, garden rooms or even extensions.