Rectangular roof lanterns in Belfast
Planning an extension in Belfast? 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 Belfast
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Rectangular roof lanterns for Belfast homes
The classic double-hipped lantern: a ridge, four sloping sides and the most size choice.
In midsummer the noon sun stands about 58.8° high over Belfast, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- Stock anthracite, black or white, or any RAL
- Suits kitchen-diners and rear extensions
- Intermediate rafters added on longer lengths
Delivery and fitting in Belfast
We confirm the delivery cost and date for BT1 on your quote. Lanterns arrive palletised, with the glass packed separately.
If you would like us to fit it, we will check fitting cover for BT1 and quote a fixed price after seeing photos or surveying.
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 Belfast
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 Belfast
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 Belfast 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 Belfast
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.
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 Belfast?
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 BT1.
Do you deliver roof lanterns to Belfast?
Yes. Delivery to Belfast (BT1) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.