Rectangular roof lanterns in Downpatrick
Planning an extension in Downpatrick? A rectangular roof lantern is one of the quickest ways to bring daylight into the middle of the room. Use the configurator for a guide price, then send your kerb size for a fixed quote and delivery date.
Price a rectangular roof lantern for Downpatrick
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Rectangular roof lanterns for Downpatrick homes
The classic double-hipped lantern: a ridge, four sloping sides and the most size choice.
On the shortest day Downpatrick gets about 7h 18m of daylight, with the sun only 12.2° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.
- Ridge along the long axis, four glazed slopes
- Stock anthracite, black or white, or any RAL
- Standard sizes or made to your kerb
Delivery and fitting in Downpatrick
We confirm the delivery cost and date for BT30 on your quote. Lanterns arrive palletised, with the glass packed separately.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in Downpatrick before quoting.
Delivery to Northern Ireland is by arrangement: we confirm the carrier, any sea-freight charge and the date on your quote before you order.
Rectangular roof lantern prices for Downpatrick
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 |
| 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 Downpatrick
Northern Ireland has its own building regulations, with energy standards for homes set in Technical Booklet F1.
Permitted development is set by the Planning (General Permitted Development) Order (NI) 2015, with planning handled by your district council.
Building regulations in Downpatrick are checked by your district council's building control service. Replacement and new rooflights are controlled work in most cases. Your council's building control service will confirm whether an application is needed.
Sources: Building Regulations, Department of Finance NI · Planning permission: when to apply, nidirect
Questions from Downpatrick
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.
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.
How quickly can I get a roof lantern in Downpatrick?
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 BT30.
Who checks building regulations for a lantern in Downpatrick?
Your district council's building control service. For a lantern in a new extension it forms part of the extension's approval; replacements in existing homes have their own rules.