Seven Frameless Roof Light Ideas for 2026 Extensions

The appeal of a frameless roof light is what you don't see: no frame, no border, no interruption between plaster and sky. Because every unit we make is bespoke, the glass can follow the design rather than forcing the design to follow a catalogue. Here are the seven applications we see working hardest in current extension projects.

1. The full-length side return

The classic Victorian terrace move. A single narrow unit — say 3000×800mm, made to the exact length of the infill — runs the glazing hard against the party wall, washing the original brickwork with daylight and making the old outside wall an interior feature.

2. The picture frame over the island

A generous square unit centred exactly over the kitchen island puts working light on the worktop all day and turns the island into the room's natural centre. Bespoke sizing matters here: centred means centred, not ‘the nearest stock size, offset 150mm’.

3. Rescuing the middle room

Knock-throughs leave a dark middle zone that no vertical window can reach. A roof light placed directly over that dead centre — usually 1200–1500mm square — does more for the room than any amount of artificial lighting.

4. The run of three

On longer extensions, three identical frameless units in a disciplined rhythm read as architecture rather than accessories. Made-to-order sizing keeps the spacing perfectly even whatever the roof dimensions.

5. The bathroom skylight

Daylight without overlooking: a frameless unit with frosted or satin glass over a bathroom gives full privacy and full brightness at once — and nobody ever regrets showering under open sky.

6. The flat-roof dormer

Loft conversions with flat-roof dormers usually settle for a small opening rooflight. A larger fixed frameless unit over the stairwell or bed position transforms how the whole storey feels — and fixed units are the most cost-effective glass you can buy per square metre.

7. The courtyard borrow

Where an extension wraps an internal courtyard or lightwell, a frameless unit in the adjoining flat roof bounces daylight deeper into the plan, doubling what the courtyard alone achieves.

Every one of these is a standard job for the factory, not a special. Price your exact size on the frameless roof light calculator, or talk to us about anything unusual through the bespoke enquiry page. Made in Liverpool, delivered free UK-wide, guaranteed for 20 years.