Supply-only roof lanterns in Dartford
Planning an extension in Dartford? A supply-only roof lantern is one of the quickest ways to bring daylight into the middle of the room. Use the configurator for a guide price, then send your kerb size for a fixed quote and delivery date.
Price a supply-only roof lantern for Dartford
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Supply-only roof lanterns for Dartford homes
Delivered to you or your builder, ready for your own team to fit.
In midsummer the noon sun stands about 62.0° high over Dartford, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- Delivery quoted for your postcode
- Delivered to your site on pallets
- Priced and ordered to your kerb size
Delivery and fitting in Dartford
We confirm the delivery cost and date for DA1 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 DA1 and quote a fixed price after seeing photos or surveying.
Delivery to DA1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Supply-only roof lantern prices for Dartford
Typical guide prices for supply-only roof lanterns, supply only and including VAT:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1500 mm | 1.50 m² | £1,295–£1,495£1,079 ex VAT from | Configure |
| 1000 × 2000 mm | 2.00 m² | £1,495–£1,795£1,246 ex VAT from | Configure |
| 1500 × 2000 mm | 3.00 m² | £1,995–£2,295£1,662 ex VAT from | Configure |
| 1500 × 2500 mm | 3.75 m² | £2,295–£2,695£1,912 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 Dartford
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 Dartford 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 Dartford
Do you deliver to building sites?
Yes, to mainland Britain addresses, with Northern Ireland, the Highlands and islands by arrangement. Tell us about access, parking restrictions and whether a forklift or tail lift will be needed.
Can you deliver to Scotland, Northern Ireland or the islands?
Mainland Britain is standard. The Scottish Highlands, islands and Northern Ireland are by arrangement, with delivery confirmed on your quote.
Do I need planning permission for a roof lantern in Dartford?
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.
Is it worth having solar-control glass in Dartford?
With the midsummer sun about 62.0° high at noon, roof glass in Dartford gets strong summer sun. Solar control is recommended for large or south-facing lanterns.