Rectangular roof lanterns in Ipswich
Whether your Ipswich extension is still on paper or the roof is already on, we can price a rectangular roof lantern to suit it. Standard sizes cost less and arrive sooner; made-to-measure fits a kerb that is already built.
Price a rectangular roof lantern for Ipswich
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Rectangular roof lanterns for Ipswich homes
The classic double-hipped lantern: a ridge, four sloping sides and the most size choice.
On the shortest day Ipswich gets about 7h 44m of daylight, with the sun only 14.5° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.
- Suits kitchen-diners and rear extensions
- Intermediate rafters added on longer lengths
- The most size options of any lantern shape
Delivery and fitting in Ipswich
Your quote includes delivery to Ipswich at a confirmed price, usually to the kerbside or driveway on pallets.
Fitting in Ipswich can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to IP1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Rectangular roof lantern prices for Ipswich
What rectangular roof lanterns cost in common sizes (guide, inc VAT, supply only):
| Kerb size | Roof area | Guide price | 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 for Ipswich
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 Ipswich 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 Ipswich
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.
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 you deliver roof lanterns to Ipswich?
Yes. Delivery to Ipswich (IP1) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.
Do I need planning permission for a roof lantern in Ipswich?
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.