Supply-only roof lanterns in Windsor
Planning an extension in Windsor? 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 Windsor
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Supply-only roof lanterns for Windsor homes
Delivered to you or your builder, ready for your own team to fit.
On the shortest day Windsor gets about 7h 50m of daylight, with the sun only 15.1° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.
- Delivery quoted for your postcode
- Fitting quote available if needed
- Your builder fits it to the instructions
Delivery and fitting in Windsor
Delivery to SL4 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in Windsor before quoting.
Delivery to SL4 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Supply-only roof lantern prices for Windsor
What supply-only 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 a stock colour. Your fixed price is confirmed in writing on your quote before you order.
Planning and building regulations for Windsor
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 Windsor 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 Windsor
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 I collect?
Ask us when you request your quote. Collection depends on where your lantern is made.
Is it worth having solar-control glass in Windsor?
With the midsummer sun about 62.0° high at noon, roof glass in Windsor gets strong summer sun. Solar control is recommended for large or south-facing lanterns.
Do you deliver roof lanterns to Windsor?
Yes. Delivery to Windsor (SL4) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.