Square roof lanterns in Daventry
From a small lantern over a hallway to a long one above a kitchen island, we quote square roof lanterns for Daventry homes to the exact kerb size, with glass and colour choices set out clearly before you commit.
Price a square roof lantern for Daventry
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Square roof lanterns for Daventry homes
Four triangular panes meeting at a point: a pyramid lantern for square openings.
In midsummer the noon sun stands about 61.2° high over Daventry, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- Ideal over a table, island or hallway
- No ridge, a neat apex cap instead
- Strong central focal point from below
Delivery and fitting in Daventry
We confirm the delivery cost and date for NN11 on your quote. Lanterns arrive palletised, with the glass packed separately.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in Daventry before quoting.
Delivery to NN11 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Square roof lantern prices for Daventry
What square roof lanterns cost in common sizes (guide, inc 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 Daventry
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.
Planning-wise, a lantern on a new extension is judged as part of that extension, while one added to an existing roof can fall outside permitted development if it stands more than 150 mm proud.
Building regulations in Daventry 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 Daventry
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 a pyramid lantern more expensive than a rectangular one?
Per square metre it can cost slightly more, because every pane is a triangle and the apex needs a special joint. The difference is usually small next to the effect of size and glass choice.
Is it worth having solar-control glass in Daventry?
With the midsummer sun about 61.2° high at noon, roof glass in Daventry gets strong summer sun. Solar control is recommended for large or south-facing lanterns.
Do you deliver roof lanterns to Daventry?
Yes. Delivery to Daventry (NN11) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.