Rectangular roof lanterns in Seaford
Order rectangular roof lanterns for delivery to Seaford and nearby Rottingdean and Eastbourne. Every lantern is checked against your measurements before it is ordered, and the price on your quote is fixed for the specification shown; any extra work is agreed with you first.
Price a rectangular roof lantern for Seaford
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Rectangular roof lanterns for Seaford homes
The classic double-hipped lantern: a ridge, four sloping sides and the most size choice.
In midsummer the noon sun stands about 62.7° high over Seaford, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- The most size options of any lantern shape
- Ridge along the long axis, four glazed slopes
- Intermediate rafters added on longer lengths
Delivery and fitting in Seaford
Delivery to BN25 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
Fitting in Seaford can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to BN25 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Rectangular roof lantern prices for Seaford
Typical guide prices for rectangular roof lanterns, supply only and including VAT:
| 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 Seaford
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 Seaford 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 Seaford
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.
Can a rectangular lantern be made to an exact size?
Yes. Made-to-measure lanterns are built to the external kerb size you give us, usually in 10 mm steps within the range's limits. Made-to-measure takes longer than a stock size and cannot be cancelled once ordered, so measure twice.
Do I need planning permission for a roof lantern in Seaford?
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.
Do you deliver roof lanterns to Seaford?
Yes. Delivery to Seaford (BN25) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.