Small roof lanterns in Grantham
Planning an extension in Grantham? A small 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 small roof lantern for Grantham
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Small roof lanterns for Grantham homes
Compact lanterns for hallways, utility rooms, porches and side returns.
Winter daylight in Grantham lasts about 7h 35m, against 16h 55m in midsummer. Glass in the roof makes the most of the short days, and the right glass keeps the long ones comfortable.
- Simple to fit on a ready upstand
- Daylight where windows cannot reach
- Great for hallways and utility rooms
Delivery and fitting in Grantham
Your quote includes delivery to Grantham 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 NG31 and quote a fixed price after seeing photos or surveying.
Delivery to NG31 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Small roof lantern prices for Grantham
Guide prices for common small roof lantern sizes, including 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 |
| 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 × 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 Grantham
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 Grantham 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 Grantham
What is the smallest roof lantern?
Many ranges start at around 800–1000 mm. Below that, a flat rooflight is usually the better product.
Are small lanterns available quickly?
Standard small sizes are often available from stock. Lead times are confirmed on your quote.
Do I need planning permission for a roof lantern in Grantham?
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 Grantham?
With the midsummer sun about 60.5° high at noon, roof glass in Grantham gets strong summer sun. Solar control is recommended for large or south-facing lanterns.