Flat rooflights in London
Choosing a flat rooflight for a house in London? Start with the guide prices below, check the planning and building regulations notes for England, then ask for a fixed quote with delivery to EC1A.
Price a flat rooflight for London
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Flat rooflights for London homes
A single near-flat pane on an upstand: minimal, low and discreet.
At 51.51°N, London sees roughly 7h 49m of daylight in late December and 16h 38m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Fixed or electric opening versions
- Minimal, frameless-looking from inside
- Sized to your upstand
Delivery and fitting in London
We confirm the delivery cost and date for EC1A on your quote. Lanterns arrive palletised, with the glass packed separately.
Fitting in London can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to EC1A is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Flat rooflight prices for London
Guide prices for common flat rooflight sizes, including VAT, supply only:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1000 mm | 1.00 m² | £595–£695£496 ex VAT from | Configure |
| 1000 × 1500 mm | 1.50 m² | £695–£845£579 ex VAT from | Configure |
| 1000 × 2000 mm | 2.00 m² | £845–£995£704 ex VAT from | Configure |
| 1500 × 1500 mm | 2.25 m² | £895–£1,095£746 ex VAT from | Configure |
Guide prices include VAT at 20%, supply only, aluminium with self-cleaning double glazing in a stock colour. Your fixed price is confirmed in writing on your quote before you order.
Planning and building regulations for London
For homes in England, a new or replacement rooflight should achieve a U-value of 2.2 W/m²K or better in the horizontal position, under Approved Document L.
Lanterns on permitted development extensions are part of the extension's height limits. Adding one to an existing roof is different: over 150 mm of projection can mean a planning application.
Building regulations in London are checked by your local authority building control team or a registered building control approver. Replacing a rooflight in an existing home is building work. Installers registered with a competent person scheme can self-certify; otherwise building control must be involved.
Sources: Approved Document L, GOV.UK · Planning Portal
Questions from London
Can I walk on a flat rooflight?
Only if it is a walk-on rooflight designed for foot traffic. Standard rooflights are not designed to be walked on.
Are flat rooflights cheaper than lanterns?
Usually, size for size. They use one glass unit and a simple frame.
Do I need planning permission for a roof lantern in London?
Often not, but it depends on the roof, the property and whether it is listed or in a conservation area. Check with your district, borough or unitary council before ordering.
Is it worth having solar-control glass in London?
With the midsummer sun about 61.9° high at noon, roof glass in London gets strong summer sun. Solar control is recommended for large or south-facing lanterns.