Roof lights
Daylight,
from above.
Flat glass roof lights and roof lanterns that bring a calm sense of volume to kitchens, extensions and living spaces — made to measure, double or triple glazed.
Why roof lights
Dark rooms feel smaller
than they are.
Overhead glazing lets in up to three times more daylight than a vertical window of the same size.
A single roof light brightens deep floor plans, cuts reliance on artificial lighting and makes compact spaces feel open. It's the go-to choice for kitchen and rear extensions, loft conversions, garden rooms and flat-roofed side returns.
Flat roof lights
A near-frameless view of the sky.
A fixed or opening glazed unit set on an insulated upstand in a flat or low-pitched roof. Every unit is manufactured to your exact opening — from a compact 600mm square to a statement structural glass span.
Roof lanterns
Height, drama and 360° light.
A pitched, multi-panel glazed structure that rises above the roofline. Slim, thermally broken aluminium frames in anthracite grey, matte black, classic white and more — a centrepiece for modern extensions and period homes alike.
Not sure which suits your project? We'll walk you through both during your free consultation.
Specified for the job
Built for performance, not just looks.
Solar control
For south-facing roofs, to reduce glare and summer overheating.
Self-cleaning glass
A practical upgrade for glazing you can't easily reach.
Acoustic & tinted options
Choose the glass for your room's orientation and use.
Built for UK weather
Thermally broken frames, safety glazing and weatherproof construction.
Questions
Good to know.
Do I need planning permission for a roof light?
In most cases, no. Roof lights and lanterns usually fall under permitted development, provided they don’t project more than 150mm above the roof plane. Listed buildings and conservation areas are the main exceptions.
How much do flat glass roof lights cost?
It depends on size, glazing specification and whether the unit is fixed or opening. We provide a free written quotation after a quick survey, so you know the exact cost before any work begins.
Can you repair an existing roof light?
Yes — leaks, cracked or misted glazing, failed seals and condensation. See our repair services.
Free design consultation
Tell us about your project.
No pressure, no obligation. We'll talk through proportion, profile, colour and glass, then arrange a survey if you'd like to go further.
- Call020 3835 2583
- Mobile / WhatsApp07925 678210
- Emailinfo@4moonwindows.co.uk
- HoursMon–Fri · 08:00–17:30
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Thank you.
A member of the 4Moon team will call you back to arrange your free design consultation. If it's urgent, call us on 020 3835 2583.