Large roof lanterns in Finchley
Buy large roof lanterns for homes in Finchley 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 N3 address.
Price a large roof lantern for Finchley
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Large roof lanterns for Finchley homes
Lanterns of three metres and more for open-plan extensions, with intermediate rafters.
At 51.6°N, Finchley sees roughly 7h 49m of daylight in late December and 16h 39m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Approximate weight given with your quote
- Fitting can be quoted on request
- Intermediate rafters carry the larger glass
Delivery and fitting in Finchley
We confirm the delivery cost and date for N3 on your quote. Lanterns arrive palletised, with the glass packed separately.
Fitting in Finchley can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to N3 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Large roof lantern prices for Finchley
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 |
| 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 Finchley
In England, building regulations energy guidance sets a limiting U-value of 2.2 W/m²K for new and replacement rooflights in existing homes, measured horizontally.
Planning-wise, a lantern on a new extension is judged as part of that extension, while one added to an existing roof can fall outside permitted development if it stands more than 150 mm proud.
Building regulations in Finchley 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 Finchley
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.
How is a large lantern delivered?
On pallets, usually with the frame and glass packed separately. The heaviest single item is normally a glass unit, which needs two or more people to lift safely.
Can you fit a roof lantern in Finchley?
We can quote for fitting where we have cover. Send your postcode and photos of the roof and kerb, and we will confirm before quoting.
Do you deliver roof lanterns to Finchley?
Yes. Delivery to Finchley (N3) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.