Large roof lanterns in London
Buy large roof lanterns for homes in London and across Greater London. Choose a standard size or have one made to your kerb, see a guide price straight away, then get a fixed written quote with delivery to your EC1A address.
Price a large roof lantern for London
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Large roof lanterns for London homes
Lanterns of three metres and more for open-plan extensions, with intermediate rafters.
Winter daylight in London lasts about 7h 49m, against 16h 38m in midsummer. Glass in the roof makes the most of the short days, and the right glass keeps the long ones comfortable.
- Approximate weight given with your quote
- Fitting can be quoted on request
- Solar-control glass recommended
Delivery and fitting in London
Delivery to EC1A is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
If you would like us to fit it, we will check fitting cover for EC1A and quote a fixed price after seeing photos or surveying.
Delivery to EC1A is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Large roof lantern prices for London
Typical guide prices for large roof lanterns, supply only and including VAT:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1500 × 3000 mm | 4.50 m² | £2,595–£2,995£2,162 ex VAT from | Configure |
| 2000 × 3000 mm | 6.00 m² | £3,195–£3,695£2,662 ex VAT from | Configure |
| 2000 × 4000 mm | 8.00 m² | £4,095–£4,795£3,412 ex VAT from | Configure |
| 3000 × 4000 mm | 12.00 m² | £5,695–£6,595£4,746 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
Does a large lantern need structural calculations?
The roof structure around it usually does. Your engineer or building control body will want the lantern's weight and the opening size.
What is the biggest roof lantern you can supply?
It depends on the range. Some go to about 6 m by 4 m with intermediate rafters. Send us your kerb size and we will confirm what can be made.
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.
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.