Rectangular roof lanterns in Farnworth
Buy rectangular roof lanterns for homes in Farnworth and across Greater Manchester. Choose a standard size or have one made to your kerb, see a guide price straight away, then get a fixed written quote with delivery to your BL4 address.
Price a rectangular roof lantern for Farnworth
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Rectangular roof lanterns for Farnworth homes
The classic double-hipped lantern: a ridge, four sloping sides and the most size choice.
In midsummer the noon sun stands about 59.9° high over Farnworth, 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
- Ridge along the long axis, four glazed slopes
- Standard sizes or made to your kerb
Delivery and fitting in Farnworth
Delivery to BL4 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in Farnworth before quoting.
Delivery to BL4 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Rectangular roof lantern prices for Farnworth
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 |
| 1500 × 2000 mm | 3.00 m² | £1,995–£2,295£1,662 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 Farnworth
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.
Lanterns on permitted development extensions are part of the extension's height limits. Adding one to an existing roof is different: over 150 mm of projection can mean a planning application.
Building regulations in Farnworth 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 Farnworth
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 Farnworth?
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 BL4.
Do you deliver roof lanterns to Farnworth?
Yes. Delivery to Farnworth (BL4) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.