Large roof lanterns in Barnet
We supply large roof lanterns to Barnet (EN5) and the rest of Greater London: sized in millimetres to your upstand, priced up front and delivered on pallets. Fitting can be quoted separately if you need it.
Price a large roof lantern for Barnet
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Large roof lanterns for Barnet homes
Lanterns of three metres and more for open-plan extensions, with intermediate rafters.
At 51.65°N, Barnet sees roughly 7h 48m of daylight in late December and 16h 40m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Lengths from about three to six metres
- Solar-control glass recommended
- Intermediate rafters carry the larger glass
Delivery and fitting in Barnet
Your quote includes delivery to Barnet at a confirmed price, usually to the kerbside or driveway on pallets.
If you would like us to fit it, we will check fitting cover for EN5 and quote a fixed price after seeing photos or surveying.
Delivery to EN5 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Large roof lantern prices for Barnet
What large roof lanterns cost in common sizes (guide, inc VAT, supply only):
| 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 |
| 2500 × 4000 mm | 10.00 m² | £4,895–£5,695£4,079 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 Barnet
England's Approved Document L caps the U-value of new or replacement rooflights in existing homes at 2.2 W/m²K, calculated with the glass horizontal.
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 in Barnet 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 Barnet
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.
Do large lanterns overheat a room?
A large area of south-facing glass can make a room warm on sunny days. Solar-control glass, an opening vent and good background ventilation all help. Our guide on overheating explains the options.
Is it worth having solar-control glass in Barnet?
With the midsummer sun about 61.8° high at noon, roof glass in Barnet gets strong summer sun. Solar control is recommended for large or south-facing lanterns.
Who checks building regulations for a lantern in Barnet?
Your local authority building control team or a registered building control approver. For a lantern in a new extension it forms part of the extension's approval; replacements in existing homes have their own rules.