Aluminium roof lanterns in Harpenden
Buy aluminium roof lanterns for homes in Harpenden and across Hertfordshire. 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 AL5 address.
Price an aluminium roof lantern for Harpenden
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Aluminium roof lanterns for Harpenden homes
Slim, strong, thermally broken frames in powder-coated colours.
At 51.82°N, Harpenden sees roughly 7h 46m of daylight in late December and 16h 42m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Durable powder-coated finish
- Won't rot, warp or need painting
- Larger sizes than uPVC can reach
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.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in Harpenden before quoting.
Delivery to AL5 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Aluminium roof lantern prices for Harpenden
Typical guide prices for aluminium roof lanterns, supply only and including VAT:
| Kerb size | Roof area | Guide price | 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 × 2000 mm | 3.00 m² | £1,995–£2,295£1,662 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
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.
On a permitted development extension the lantern counts towards the extension's height; on an existing roof, a rooflight projecting more than 150 mm may need planning permission.
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
Do aluminium lanterns get cold and drip?
Thermally broken frames are designed to reduce cold bridging. Condensation can still form if a room is very humid and poorly ventilated, which is why kitchens and bathrooms need extract ventilation.
Can I paint an aluminium lantern later?
It can be repainted with suitable systems, but it is far better to choose the right powder-coated colour at the start.
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.
Can you fit a roof lantern in Harpenden?
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.