Why Frameless, Fixed Rooflights Are 2025’s Top Trend in UK Home Extensions
Thinking about extending your home in 2025? Want more natural light, a cleaner design, and a wow-factor that lasts? Then frameless, fixed rooflights should be on your radar.
Let’s break down why these sleek, non-opening rooflights are taking over UK home extensions this year—and why so many homeowners (and architects) love them.
So, what is a frameless fixed rooflight?
In simple terms, a frameless fixed rooflight is a large piece of glass set into your flat or shallow-pitch roof that doesn’t open and has no visible internal frame. It gives you a crystal-clear view of the sky—just light, no fuss.
Because it’s fixed, it doesn’t open for ventilation. And because it’s frameless inside, you won’t see chunky edges or hardware. Just that beautiful, uninterrupted daylight streaming in.
Why are they trending in 2025?
1. They look incredible.
Let’s be honest—frameless rooflights are just cool. They’re modern, minimal, and they give your space a premium feel. Whether you’re designing a new kitchen extension or a rear flat-roof addition, they make your ceiling look clean and high-end.
2. More natural light, less visual clutter.
Fixed rooflights let in a massive amount of daylight—more than vertical windows of the same size. With no visible frame on the inside, your ceiling line stays sleek and simple. That’s perfect for open-plan living spaces, garden rooms, or even bathrooms.
3. Better insulation = lower bills.
Worried that a big piece of glass means more heat loss? Don’t be. In 2025, most frameless fixed rooflights come with super-low U-values, often below 1.2 W/m²K. That means they meet UK Building Regulations and help keep your home warm in winter and cool in summer.
Some models even come with solar-control or self-cleaning glass, making life easier while improving energy performance.
4. Low maintenance, no moving parts.
Because they don’t open, fixed rooflights are less likely to develop mechanical issues. There are no handles, hinges, or motors to go wrong. Just fit and forget. That’s ideal if the rooflight is out of reach, like over a kitchen island or stairwell.
5. Perfect for voice-activated blinds.
Want to say “Alexa, close the blinds” and actually have it work? Frameless rooflights pair beautifully with automated blind systems. Since you can’t reach them easily anyway, smart tech makes total sense—and homeowners are loving it in 2025.
Common questions homeowners ask (and quick answers)
Do frameless rooflights need planning permission?
Usually not, as long as they don’t project more than 150 mm above the roof surface. But always check with your local council, especially if you’re in a conservation area or listed building.
Can they go on any type of roof?
They’re best for flat roofs or shallow pitches. You’ll need a small upstand or kerb to support them—your builder or installer will handle that.
Are they safe and secure?
Absolutely. Most modern units are double- or triple-glazed with toughened and laminated glass. They’re secure and built to withstand British weather.
Best frameless fixed rooflights in the UK right now
When it comes to stylish, energy-efficient, and reliable rooflights, the UK market offers a fantastic selection. Here are some of the top-rated options to consider:
Wendland Flat Skylight – Known for excellent thermal performance and a clean, modern appearance.
Korniche Flat Glass Rooflight – Minimal visible framing and an innovative quick-install system make this a favourite for sleek designs.
Mardome Glass Trade – Manufactured in the UK, offering customizable sizes and straightforward installation.
Roof Maker Luxlite – A premium option with frameless views from below and optional solar control glass.
Saris-Extensions – A UKCA-certified manufacturer. Saris-Extensions frameless rooflights not only meet British Standards & Building Regulations but also deliver superior energy efficiency and durability. Backed by verified professionals, ISO-certified materials, and a money-back guarantee, they are a trusted choice for both homeowners and trade professionals.
Final thoughts: Why homeowners are choosing fixed, frameless rooflights in 2025
If you're upgrading your home, adding an extension, or just want to make a space feel brighter and more open, frameless rooflights tick all the boxes. They're energy-efficient, low-maintenance, architect-approved, and genuinely transform the way a room feels.
No bulky frames. No fuss. Just sky.
Looking to future-proof your home with natural light and clean design? Frameless, fixed rooflights are the 2025 move.
