Aluminium roof lanterns in Dorchester
Order aluminium roof lanterns for delivery to Dorchester and nearby Weymouth and Bridport. Every lantern is checked against your measurements before it is ordered, and the price on your quote is fixed for the specification shown; any extra work is agreed with you first.
Price an aluminium roof lantern for Dorchester
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Aluminium roof lanterns for Dorchester homes
Slim, strong, thermally broken frames in powder-coated colours.
At 50.72°N, Dorchester sees roughly 7h 57m of daylight in late December and 16h 30m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Thermally broken aluminium frames
- Slim bars for more glass and sky
- Different colours inside and out
Delivery and fitting in Dorchester
We confirm the delivery cost and date for DT1 on your quote. Lanterns arrive palletised, with the glass packed separately.
Fitting in Dorchester can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to DT1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Aluminium roof lantern prices for Dorchester
Typical guide prices for aluminium 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 |
| 2000 × 3000 mm | 6.00 m² | £3,195–£3,695£2,662 ex VAT from | Configure |
| 2000 × 4000 mm | 8.00 m² | £4,095–£4,795£3,412 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 Dorchester
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.
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 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
Can I paint an aluminium lantern later?
It can be repainted with suitable systems, but it is far better to choose the right powder-coated colour at the start.
Do aluminium lanterns get cold and drip?
Thermally broken frames are designed to reduce cold bridging. Condensation can still form if a room is very humid and poorly ventilated, which is why kitchens and bathrooms need extract ventilation.
Do I need planning permission for a roof lantern in Dorchester?
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.
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.