Square roof lanterns in Blackheath
Looking for a square roof lantern in Blackheath? We price it to your kerb size, confirm the fixed price in writing and deliver to SE3 and the surrounding postcodes, ready for your builder to fit or for us to quote fitting.
Price a square roof lantern for Blackheath
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Square roof lanterns for Blackheath homes
Four triangular panes meeting at a point: a pyramid lantern for square openings.
Winter daylight in Blackheath lasts about 7h 50m, against 16h 38m in midsummer. Glass in the roof makes the most of the short days, and the right glass keeps the long ones comfortable.
- Stock colours or any RAL on request
- Strong central focal point from below
- Four triangular panes to a single apex
Delivery and fitting in Blackheath
Your quote includes delivery to Blackheath at a confirmed price, usually to the kerbside or driveway on pallets.
If you would like us to fit it, we will check fitting cover for SE3 and quote a fixed price after seeing photos or surveying.
Delivery to SE3 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Square roof lantern prices for Blackheath
Guide prices for common square roof lantern sizes, including VAT, supply only:
| 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 Blackheath
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 Blackheath 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 Blackheath
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.
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 Blackheath?
With the midsummer sun about 62.0° high at noon, roof glass in Blackheath gets strong summer sun. Solar control is recommended for large or south-facing lanterns.
Who checks building regulations for a lantern in Blackheath?
Your local authority building control team or a registered building control approver. For a lantern in a new extension it forms part of the extension's approval; replacements in existing homes have their own rules.