Supply-only roof lanterns in Harpenden
Planning an extension in Harpenden? 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 Harpenden
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Supply-only roof lanterns for Harpenden homes
Delivered to you or your builder, ready for your own team to fit.
On the shortest day Harpenden gets about 7h 46m of daylight, with the sun only 14.7° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.
- Fitting quote available if needed
- Your builder fits it to the instructions
- Delivered to your site on pallets
Delivery and fitting in Harpenden
Your quote includes delivery to Harpenden at a confirmed price, usually to the kerbside or driveway on pallets.
Fitting in Harpenden can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to AL5 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Supply-only roof lantern prices for Harpenden
Guide prices for common supply-only roof lantern sizes, including VAT, supply only:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1500 mm | 1.50 m² | £1,295–£1,495£1,079 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 |
| 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 Harpenden
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 Harpenden 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 Harpenden
Can I collect?
Ask us when you request your quote. Collection depends on where your lantern is made.
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.
How quickly can I get a roof lantern in Harpenden?
Stock sizes are typically ready in 5–10 working days, made-to-measure in 3–4 weeks, plus delivery. Your quote gives the date for AL5.
Do I need planning permission for a roof lantern in Harpenden?
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.