Traditional roof lanterns in Harpenden
Whether your Harpenden extension is still on paper or the roof is already on, we can price a traditional roof lantern to suit it. Standard sizes cost less and arrive sooner; made-to-measure fits a kerb that is already built.
Price a traditional roof lantern for Harpenden
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Traditional roof lanterns for Harpenden homes
Victorian-style detailing with ridge cresting and finials for period homes.
Winter daylight in Harpenden lasts about 7h 46m, against 16h 42m in midsummer. Glass in the roof makes the most of the short days, and the right glass keeps the long ones comfortable.
- Specification sheets for consent applications
- Suits orangeries and older houses
- Modern thermally broken aluminium frame
Delivery and fitting in Harpenden
Delivery to AL5 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
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.
Traditional roof lantern prices for Harpenden
Typical guide prices for traditional roof lanterns, supply only and including VAT:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1500 × 2000 mm | 3.00 m² | £2,295–£2,695£1,912 ex VAT from | Configure |
| 1500 × 2500 mm | 3.75 m² | £2,595–£2,995£2,162 ex VAT from | Configure |
| 2000 × 3000 mm | 6.00 m² | £3,695–£4,295£3,079 ex VAT from | Configure |
| 2000 × 4000 mm | 8.00 m² | £4,695–£5,495£3,912 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
England's Approved Document L caps the U-value of new or replacement rooflights in existing homes at 2.2 W/m²K, calculated with the glass horizontal.
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
Is a traditional lantern harder to clean?
There are more bars, so there are more edges for dirt to collect along. Self-cleaning glass helps, but a gentle rinse once or twice a year is still worthwhile.
Can I have cresting without finials, or the other way round?
Usually yes. Ranges treat cresting and finials as options. Tell us what you want and the quote will list each item.
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.
Is it worth having solar-control glass in Harpenden?
With the midsummer sun about 61.6° high at noon, roof glass in Harpenden gets strong summer sun. Solar control is recommended for large or south-facing lanterns.