England · Square & pyramid

Square roof lanterns in Greater London

Across Greater London, square roof lanterns are quoted to the external kerb size, with delivery confirmed for your postcode and fitting available on request.

AreaGreater London

NationEngland

Towns listed80

Guide price from£1,095

Configure and price Call 0800 088 6248

Get a price in Greater London

Send your postcode and kerb size for a fixed written quote.

Choosing square roof lanterns in Greater London

Four triangular panes meeting at a point: a pyramid lantern for square openings.

Across Greater London, the shortest day brings around 7h 50m of daylight and the midsummer sun reaches about 61.9° at noon. A lantern collects light from the bright overhead sky all year, and the right glass keeps the long summer days comfortable.

Ideal over a table, island or hallway
Stock colours or any RAL on request
No ridge, a neat apex cap instead
Square sizes from about one metre

Delivery and fitting in Greater London

Delivery to mainland addresses here is quoted for your postcode and confirmed in writing before you order.

Fitting can be quoted where we have cover; send your postcode and photos of the roof and kerb and we will confirm before quoting.

Square roof lantern prices

What square roof lanterns cost in common sizes (guide, inc VAT, supply only):

Square roof lantern prices
Kerb size	Roof area	Guide price	Configure
1000 × 1000 mm	1.00 m²	£1,095–£1,295£912 ex VAT from	Configure
1200 × 1200 mm	1.44 m²	£1,295–£1,495£1,079 ex VAT from	Configure
1500 × 1500 mm	2.25 m²	£1,595–£1,895£1,329 ex VAT from	Configure
2000 × 2000 mm	4.00 m²	£2,395–£2,795£1,996 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 in Greater 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.

On a permitted development extension the lantern counts towards the extension's height; on an existing roof, a rooflight projecting more than 150 mm may need planning permission.

Building regulations 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

Square roof lanterns in Greater London: questions

Is a pyramid lantern more expensive than a rectangular one?

Per square metre it can cost slightly more, because every pane is a triangle and the apex needs a special joint. The difference is usually small next to the effect of size and glass choice.

Will a square lantern leak at the top?

It should not when it is correctly installed and maintained. The apex is factory-designed to shed water; leaks usually come from the upstand or roof membrane rather than the lantern itself, which is why the upstand detail matters.

What is the largest square lantern?

Ranges differ. Many go to around 3 m square, with extra hip bars on larger sizes. Tell us your kerb size and we will confirm which ranges can make it.

Do I need planning permission for a roof lantern in Greater 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.