Square roof lanterns in Farnworth
Order square roof lanterns for delivery to Farnworth and nearby Walkden and Bolton. Every lantern is checked against your measurements before it is ordered, and the price on your quote is fixed for the specification shown; any extra work is agreed with you first.
Price a square roof lantern for Farnworth
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Square roof lanterns for Farnworth homes
Four triangular panes meeting at a point: a pyramid lantern for square openings.
On the shortest day Farnworth gets about 7h 27m of daylight, with the sun only 13.0° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.
- Stock colours or any RAL on request
- Ideal over a table, island or hallway
- Four triangular panes to a single apex
Delivery and fitting in Farnworth
We confirm the delivery cost and date for BL4 on your quote. Lanterns arrive palletised, with the glass packed separately.
Fitting in Farnworth can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to BL4 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Square roof lantern prices for Farnworth
Typical guide prices for square roof lanterns, supply only and including VAT:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1000 mm | 1.00 m² | £1,095–£1,295£912 ex VAT from | Configure |
| 1200 × 1200 mm | 1.44 m² | £1,295–£1,495£1,079 ex VAT from | Configure |
| 1500 × 1500 mm | 2.25 m² | £1,595–£1,895£1,329 ex VAT from | Configure |
| 2000 × 2000 mm | 4.00 m² | £2,395–£2,795£1,996 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
Will a square lantern leak at the top?
It should not when it is correctly installed and maintained. The apex is factory-designed to shed water; leaks usually come from the upstand or roof membrane rather than the lantern itself, which is why the upstand detail matters.
What is the largest square lantern?
Ranges differ. Many go to around 3 m square, with extra hip bars on larger sizes. Tell us your kerb size and we will confirm which ranges can make it.
Is it worth having solar-control glass in Farnworth?
With the midsummer sun about 59.9° high at noon, roof glass in Farnworth gets strong summer sun. Solar control is recommended for large or south-facing lanterns.
Can you fit a roof lantern in Farnworth?
We can quote for fitting where we have cover. Send your postcode and photos of the roof and kerb, and we will confirm before quoting.