Replacement roof lanterns in Finchley
Choosing a replacement 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 replacement roof lantern for Finchley
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Replacement roof lanterns for Finchley homes
Swap a tired, leaking or polycarbonate lantern for modern double glazing.
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.
- Reuse the kerb if sound and to size
- Energy standards for replacements explained
- Warmer, quieter, brighter
Delivery and fitting in Finchley
Your quote includes delivery to Finchley at a confirmed price, usually to the kerbside or driveway on pallets.
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.
Replacement roof lantern prices for Finchley
What replacement roof lanterns cost in common sizes (guide, inc VAT, supply only):
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1500 mm | 1.50 m² | £1,295–£1,495£1,079 ex VAT from | Configure |
| 1000 × 2000 mm | 2.00 m² | £1,495–£1,795£1,246 ex VAT from | Configure |
| 1500 × 2000 mm | 3.00 m² | £1,995–£2,295£1,662 ex VAT from | Configure |
| 1500 × 2500 mm | 3.75 m² | £2,295–£2,695£1,912 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
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 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
Can I replace polycarbonate panels with glass?
Usually not in the old frame: glass is much heavier than polycarbonate and the frame was not designed for it. Replacing the whole lantern is the safer route.
Will a new lantern be warmer?
A modern double glazed lantern with a thermally broken frame loses far less heat than polycarbonate.
Do I need planning permission for a roof lantern in Finchley?
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.
Is it worth having solar-control glass in Finchley?
With the midsummer sun about 61.8° high at noon, roof glass in Finchley gets strong summer sun. Solar control is recommended for large or south-facing lanterns.