Rectangular roof lanterns in the Isle of Wight
We supply rectangular roof lanterns across the Isle of Wight, from Newport (Isle of Wight) to the smaller towns, priced to your kerb size and delivered to your site.
Get a price in the Isle of Wight
Send your postcode and kerb size for a fixed written quote.
Choosing rectangular roof lanterns in the Isle of Wight
The classic double-hipped lantern: a ridge, four sloping sides and the most size choice.
Across the Isle of Wight, the shortest day brings around 7h 58m of daylight and the midsummer sun reaches about 62.7° at noon. A lantern collects light from the bright overhead sky all year, and the right glass keeps the long summer days comfortable.
- Suits kitchen-diners and rear extensions
- Ridge along the long axis, four glazed slopes
- The most size options of any lantern shape
- Intermediate rafters added on longer lengths
Delivery and fitting in the Isle of Wight
Delivery across this area is by arrangement, as its postcode districts are island or remote areas for carriers. We confirm the cost and date for your postcode on the quote before you order.
Fitting can be quoted where we have cover; send your postcode and photos of the roof and kerb and we will confirm before quoting.
Rectangular roof lantern prices
Guide prices for common rectangular roof lantern sizes, including 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 |
| 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 in the Isle of Wight
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.
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 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
Rectangular roof lanterns in the Isle of Wight: questions
Does a longer lantern need extra support?
Long lanterns use intermediate rafters inside the lantern itself. The roof structure around the opening must be designed to carry the lantern's weight; your builder or engineer sizes the trimmers.
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.
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.
Do I need planning permission for a roof lantern in the Isle of Wight?
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.