A design that turns heads
Slim sightlines, seamless joints and fully concealed fixings mean the Korniche looks as beautiful from the outside as it does from the room below. It’s the kind of addition that genuinely enhances the look of a home.
Stunning Spaces are created by the Korniche Roof Glass Lantern
The Korniche is a British-made roof lantern that we’ve been fitting across Surrey for a number of years, and it’s a product we rate very highly. Designed and manufactured in the UK using die-cast aluminium components, it combines exceptional structural strength with incredibly slim sightlines. That means more light, less frame and a finished result that looks genuinely beautiful from every angle. Whether you’re topping off a new extension or replacing an existing lantern that’s seen better days, the Korniche is a very good place to start.
A Roof Lantern Built Around the Details
Korniche use die-cast aluminium components throughout, which gives the lantern exceptional strength and weather resistance without needing the additional rafters that bulk up competing systems. The sections are just 57mm wide, making them among the slimmest on the market, and the Victorian-inspired rafter design adds a touch of elegance that looks as good from the garden as it does lying on your sofa looking up.
- Die-cast aluminium components for strength and weather resistance
- Just 57mm wide — among the slimmest sections on the market
- Victorian-inspired rafter design for a touch of elegance
- Seamless joints and fully concealed fixings throughout
All joints are seamless and every fixing is fully concealed, so what you’re left with is a clean, considered finish from every angle. It’s also been designed with installation in mind, which means less time with a team on your roof and a more straightforward process from start to finish. With industry-leading maximum sizes available, a Korniche can create a genuinely expansive opening that brings far more natural light into your home than a standard rooflight ever could.
- Fully thermally broken frame to minimise heat transfer
- Designed for straightforward, efficient installation
- Industry-leading maximum sizes for maximum light
Hear from our customers
“The Sheerwater Glass team recently replaced all the uPVC windows in our house with a modern aluminium equivalent. The process was smooth throughout and communication was clear and timely. We’re very happy with the quality of the windows and the installation service. I would definitely use them again.”
Neil
Sheerwater Glass Customer
Why our customers love the Korniche
There are plenty of roof lanterns on the market, but the Korniche stands out for the right reasons. Here’s what makes it worth investing in.
Keep the heat in, not out!
The fully thermally broken frame minimises heat transfer between inside and outside, and combined with high-performance glazing it achieves U-values as low as 1.2 W/m²K. Your home stays comfortable year round and your heating doesn’t have to work as hard.
Glass that looks after itself
Most of our glass options are self-cleaning, which means daylight breaks down organic material on the surface and the rain washes it away. For glass that’s not easy to reach, that’s a genuinely useful thing to have.
Secure and weatherproof
A glass lock system and tamper-proof fasteners secure every lantern firmly in place, with all fixings concealed behind finishing caps. Best-in-class weather seals and gaskets keep draughts and rain firmly out.
Made to fit your home
Available in Gloss White, Matt Grey and Matt Black as standard, or any RAL or BS colour you need. Internal and external colours can be different, and sizes can be tailored to suit your specific roof opening.
Quick and straightforward to fit
The Korniche has been designed from the ground up for easy installation, which means less disruption to your home and a cleaner, more efficient process from start to finish.
Ready to get a quote?
You’ll speak to a real person, not a call centre. We’ll talk you through options, no pressure.
Planning your next project? Check if we cover your area.
Sheerwater Glass proudly provides window and door installations, repairs, and glazing services throughout Surrey and the surrounding areas from our showrooms in Guildford and Woking.
To find out whether we cover your area, simply click the button below and check your postcode.
Technical Information:
What size does the Korniche come in?
The Korniche is available in a wide range of sizes and can be made to measure to fit your specific roof opening. It’s also available in industry-leading maximum sizes, so if you have a large flat roof and want to make the most of it, it’s worth having a conversation with us about what’s possible.
How does the Kornice compare to other roof lanterns on the market?
In our opinion, the Korniche is widely regarded as one of the strongest and most thermally efficient roof lanterns available. The die-cast aluminium components give it a structural integrity that most competitors can’t match, the 57mm sections are among the slimmest on the market, and the seamless, concealed finish sets it apart aesthetically. It’s not the cheapest option out there, but it’s one of the best.
How long does installation take with the Korniche?
Most Korniche roof lantern installations are completed in a single day. We’ll give you a clearer picture of timescales when we visit to survey your roof, as every opening is slightly different.
Does the Korniche come with a warranty?
Yes. The Korniche comes with a manufacturer’s guarantee and is backed by Sheerwater’s own service commitment. We’ve been fitting doors and windows across Surrey since 1972 and we’re not going anywhere, so if anything ever needs attention you know who to call. When we send you a quote you also get more details our warranties and gurantees.
Can the Korniche be fitted to any flat roof?
In most cases yes, though the condition and structure of your existing roof will determine exactly what’s involved. When we visit we’ll assess your roof opening, check the surrounding structure and advise on anything that needs to be considered before installation. There are very few situations we haven’t come across before.
