Black roof lanterns in Dorchester
Planning an extension in Dorchester? A black 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 black roof lantern for Dorchester
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Black roof lanterns for Dorchester homes
RAL 9005 jet black for crisp contrast and steel-look interiors.
In midsummer the noon sun stands about 62.7° high over Dorchester, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- Matt and fine-texture finishes
- Black or white inside
- Pairs with steel-look screens and doors
Delivery and fitting in Dorchester
Your quote includes delivery to Dorchester 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 DT1 and quote a fixed price after seeing photos or surveying.
Delivery to DT1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Black roof lantern prices for Dorchester
What black roof lanterns cost in common sizes (guide, inc VAT, supply only):
| Kerb size | Roof area | Guide price | 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 |
| 2000 × 3000 mm | 6.00 m² | £3,195–£3,695£2,662 ex VAT from | Configure |
Guide prices include VAT at 20%, supply only, aluminium with self-cleaning double glazing in black. Your fixed price is confirmed in writing on your quote before you order.
Planning and building regulations for Dorchester
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 Dorchester 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 Dorchester
Is a black lantern too dark inside?
The frame is a small part of what you see; the glass dominates. Black frames inside create a graphic grid that many people like. If you want a softer look, choose white inside.
Will black fade?
Quality powder coatings are designed for UK weather. Matt finishes may show a slight sheen change over many years.
Do you deliver roof lanterns to Dorchester?
Yes. Delivery to Dorchester (DT1) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.
Is it worth having solar-control glass in Dorchester?
With the midsummer sun about 62.7° high at noon, roof glass in Dorchester gets strong summer sun. Solar control is recommended for large or south-facing lanterns.