Large roof lanterns in Belfast
Whether your Belfast extension is still on paper or the roof is already on, we can price a large roof lantern to suit it. Standard sizes cost less and arrive sooner; made-to-measure fits a kerb that is already built.
Price a large roof lantern for Belfast
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Large roof lanterns for Belfast homes
Lanterns of three metres and more for open-plan extensions, with intermediate rafters.
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.
- Fitting can be quoted on request
- Solar-control glass recommended
- Delivered as a frame kit with glass
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.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in Belfast 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.
Large roof lantern prices for Belfast
Typical guide prices for large roof lanterns, supply only and including VAT:
| Kerb size | Roof area | Guide price | 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 |
| 2500 × 4000 mm | 10.00 m² | £4,895–£5,695£4,079 ex VAT from | Configure |
| 3000 × 4000 mm | 12.00 m² | £5,695–£6,595£4,746 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
In Northern Ireland, the Building Regulations (NI) 2012 and Technical Booklet F1 set the energy standards for dwellings.
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
Do large lanterns overheat a room?
A large area of south-facing glass can make a room warm on sunny days. Solar-control glass, an opening vent and good background ventilation all help. Our guide on overheating explains the options.
Does a large lantern need structural calculations?
The roof structure around it usually does. Your engineer or building control body will want the lantern's weight and the opening size.
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.