Small roof lanterns in Dorchester
Buy small roof lanterns for homes in Dorchester and across Dorset. Choose a standard size or have one made to your kerb, see a guide price straight away, then get a fixed written quote with delivery to your DT1 address.
Price a small roof lantern for Dorchester
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Small roof lanterns for Dorchester homes
Compact lanterns for hallways, utility rooms, porches and side returns.
Winter daylight in Dorchester lasts about 7h 57m, against 16h 30m in midsummer. Glass in the roof makes the most of the short days, and the right glass keeps the long ones comfortable.
- Square pyramid or short rectangular
- Often available in stock sizes
- Daylight where windows cannot reach
Delivery and fitting in Dorchester
Delivery to DT1 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
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.
Small roof lantern prices for Dorchester
Typical guide prices for small 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 |
| 1000 × 2000 mm | 2.00 m² | £1,495–£1,795£1,246 ex VAT from | Configure |
| 1500 × 1500 mm | 2.25 m² | £1,595–£1,895£1,329 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
For homes in England, a new or replacement rooflight should achieve a U-value of 2.2 W/m²K or better in the horizontal position, under Approved Document L.
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 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 fit a small lantern myself?
Small lanterns are within the reach of a competent builder or roofer. The critical parts are a level, square, weatherproof upstand and the manufacturer's fixing instructions. In existing homes, replacement rooflights are building work that may need building control involvement.
What is the smallest roof lantern?
Many ranges start at around 800–1000 mm. Below that, a flat rooflight is usually the better product.
Can you fit a roof lantern in Dorchester?
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.
Who checks building regulations for a lantern in Dorchester?
Your local authority building control team or a registered building control approver. For a lantern in a new extension it forms part of the extension's approval; replacements in existing homes have their own rules.