Square roof lanterns in Tonbridge
Whether your Tonbridge extension is still on paper or the roof is already on, we can price a square roof lantern to suit it. Standard sizes cost less and arrive sooner; made-to-measure fits a kerb that is already built.
Price a square roof lantern for Tonbridge
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Square roof lanterns for Tonbridge homes
Four triangular panes meeting at a point: a pyramid lantern for square openings.
In midsummer the noon sun stands about 62.2° high over Tonbridge, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- No ridge, a neat apex cap instead
- Square sizes from about one metre
- Ideal over a table, island or hallway
Delivery and fitting in Tonbridge
Your quote includes delivery to Tonbridge at a confirmed price, usually to the kerbside or driveway on pallets.
Fitting in Tonbridge can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to TN9 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Square roof lantern prices for Tonbridge
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 Tonbridge
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.
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 Tonbridge 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 Tonbridge
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.
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.
Is it worth having solar-control glass in Tonbridge?
With the midsummer sun about 62.2° high at noon, roof glass in Tonbridge gets strong summer sun. Solar control is recommended for large or south-facing lanterns.
Can you fit a roof lantern in Tonbridge?
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.