Year-round enjoyment, come rain or shine

Offering the best-looking lantern roofs around, both Atlas and Korniche roofing structures add unique style and considerable value to any home extension they’re applied to. Effortlessly drenching areas with phenomenal amounts of natural light, our lantern roofs are designed and constructed with the utmost thermal efficiency in mind.

Stunning Atlas and Korniche lantern roofs allow North Somerset homeowners to literally pull natural light into the space via a swift and simple installation process, which is exceedingly beneficial to our local community as well as our valued trade customers.

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Gorgeous aesthetics



Customise your lantern roof with our great range of colours & finishes

At Seal-Lite, our expert team are fully equipped with the skills and knowledge to deliver and exceed the exceptionally high standards expected of the Atlas and Korniche brands. Seamlessly bringing the outside in on a completely different level, personalise your bespoke roof lantern further with an exciting choice of any RAL colour on offer.

Smoothly match your homes aesthetics with a choice of traditionally shaped or contemporary flat roof lantern, manufactured in practical uPVC or minimalist aluminium. Why not really push the boat out and add high-end extras such as housing for increased insulation, speakers and downlights?


Popular colours

More available upon request. Colours may vary across devices. Please request a colour swatch for an accurate representation.







Any RAL Colour

Any RAL Colour

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    Liam Davidson

    "An excellent service all round"

    An excellent service all round. Very friendly and took time to ensure the windows were exactly as I wanted. The windows themselves are well made and have completely transformed my house.

    Anthony Derrick

    "Thoroughly recommend Seal-lite"

    We had Seal-lite install full new double glazing including bi-fold doors a little while ago, excellent products and service. Their after sales service by Simon is very, very good indeed. Thoroughly recommend Seal-lite.

    Chris Townsend

    "Excellent service from start to finish"

    An excellent job done by Paul and his team. Transforming the front of our house with Georgian bar style windows and a fantastic new bay window. Finished off by a new door. Highly recommended excellent service from start to finish.

    Helen Marks

    "Very patient and understanding"

    I would absolutely recommend Seal-Lite Ltd. They have been so helpful helping me to match my new aluminium windows to the existing house. They have also been very patient and understanding with me having to delay installation for several months due to problems with my builder. Kevin fitted the windows very carefully and did an excellent job. A couple of minor things were no problem and resolved quickly to my full satisfaction. I would like to thank Paul and Pete and the team for being so so helpful. A pleasure to do business with this company – I wish all companies were like this.

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    CertassQA National WarrantiesSwish Approved InstallerCEN Solutions Bronze

    Excellent aftercare service and on-site service engineer for complete peace of mind

    Always striving to look after our customers wherever possible, we are extremely proud of the high standards of craftmanship, fabrication, installation and aftercare services that our highly skilled team continue to excel at delivering. Our excellent aftersales service and on-site service engineer proactively deal with any issues that occasionally occur with our products directly - no job is too small for our service engineer!

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    Seal-Lite Showroom

    Visit our showroom

    It’s important for homeowners and businesses alike to actually see the quality of our products up close. So, why not come and see the products for yourself?

    Home under construction

    New build projects

    With an outstanding range of uPVC and aluminium products supplied directly to our trade customers, we are highly experienced in working alongside architects and contractors on new build projects.

    Trade installaters

    Trade supply

    As well as serving the local community, we have many established connections with various different trade customers across the South West who value the high-quality products that we produce.