Square roof lanterns in Hanworth
Looking for a square roof lantern in Hanworth? We price it to your kerb size, confirm the fixed price in writing and deliver to TW13 and the surrounding postcodes, ready for your builder to fit or for us to quote fitting.
Price a square roof lantern for Hanworth
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Square roof lanterns for Hanworth homes
Four triangular panes meeting at a point: a pyramid lantern for square openings.
At 51.43°N, Hanworth sees roughly 7h 50m of daylight in late December and 16h 38m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Square sizes from about one metre
- No ridge, a neat apex cap instead
- Four triangular panes to a single apex
Delivery and fitting in Hanworth
We confirm the delivery cost and date for TW13 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 TW13 and quote a fixed price after seeing photos or surveying.
Delivery to TW13 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Square roof lantern prices for Hanworth
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 Hanworth
England's Approved Document L caps the U-value of new or replacement rooflights in existing homes at 2.2 W/m²K, calculated with the glass horizontal.
On a permitted development extension the lantern counts towards the extension's height; on an existing roof, a rooflight projecting more than 150 mm may need planning permission.
Building regulations in Hanworth 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 Hanworth
Can I have an opening vent in a pyramid lantern?
Some ranges can fit a vent in one of the triangular panes, others cannot. We will tell you on the quote whether your chosen range allows it.
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.
Is it worth having solar-control glass in Hanworth?
With the midsummer sun about 62.0° high at noon, roof glass in Hanworth gets strong summer sun. Solar control is recommended for large or south-facing lanterns.
Do I need planning permission for a roof lantern in Hanworth?
Often not, but it depends on the roof, the property and whether it is listed or in a conservation area. Check with your district, borough or unitary council before ordering.