Square roof lanterns in Finchley
Choosing a square roof lantern for a house in Finchley? Start with the guide prices below, check the planning and building regulations notes for England, then ask for a fixed quote with delivery to N3.
Price a square roof lantern for Finchley
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Square roof lanterns for Finchley homes
Four triangular panes meeting at a point: a pyramid lantern for square openings.
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.
- Strong central focal point from below
- Stock colours or any RAL on request
- Ideal over a table, island or hallway
Delivery and fitting in Finchley
Delivery to N3 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in Finchley before quoting.
Delivery to N3 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Square roof lantern prices for Finchley
Guide prices for common square roof lantern sizes, including VAT, supply only:
| 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 for Finchley
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.
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
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.
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.
Who checks building regulations for a lantern in Finchley?
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.
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.