Rectangular roof lanterns in King's Lynn
Choosing a rectangular roof lantern for a house in King's Lynn? Start with the guide prices below, check the planning and building regulations notes for England, then ask for a fixed quote with delivery to PE30.
Price a rectangular roof lantern for King's Lynn
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Rectangular roof lanterns for King's Lynn homes
The classic double-hipped lantern: a ridge, four sloping sides and the most size choice.
At 52.75°N, King's Lynn sees roughly 7h 36m of daylight in late December and 16h 53m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Intermediate rafters added on longer lengths
- Suits kitchen-diners and rear extensions
- Stock anthracite, black or white, or any RAL
Delivery and fitting in King's Lynn
Your quote includes delivery to King's Lynn 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 PE30 and quote a fixed price after seeing photos or surveying.
Delivery to PE30 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Rectangular roof lantern prices for King's Lynn
What rectangular 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 |
| 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 |
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 King's Lynn
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.
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 King's Lynn 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 King's Lynn
Which way should the ridge run?
The ridge runs along the longer side. On a square opening there is no ridge and the lantern becomes a pyramid.
What is the most common rectangular roof lantern size?
Sizes of 1000 × 2000 mm and 1500 × 2500 mm are common standard sizes for kitchen and dining extensions, but the right size is the one that matches your kerb. If your kerb is not built yet, our sizes guide helps you pick a standard size first.
How quickly can I get a roof lantern in King's Lynn?
Stock sizes are typically ready in 5–10 working days, made-to-measure in 3–4 weeks, plus delivery. Your quote gives the date for PE30.
Can you fit a roof lantern in King's Lynn?
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.