Triple glazed roof lanterns in Harrow
From a small lantern over a hallway to a long one above a kitchen island, we quote triple glazed roof lanterns for Harrow homes to the exact kerb size, with glass and colour choices set out clearly before you commit.
Price a triple glazed roof lantern for Harrow
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Triple glazed roof lanterns for Harrow homes
Three panes for lower heat loss, a warmer inner surface and less noise.
On the shortest day Harrow gets about 7h 49m of daylight, with the sun only 15.0° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.
- Warmer inner pane, less condensation risk
- Quieter in heavy rain
- Ideal for colder, exposed locations
Delivery and fitting in Harrow
Your quote includes delivery to Harrow at a confirmed price, usually to the kerbside or driveway on pallets.
Fitting in Harrow can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to HA1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Triple glazed roof lantern prices for Harrow
What triple glazed roof lanterns cost in common sizes (guide, inc VAT, supply only):
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1500 mm | 1.50 m² | £1,795–£2,095£1,496 ex VAT from | Configure |
| 1500 × 2500 mm | 3.75 m² | £3,095–£3,595£2,579 ex VAT from | Configure |
| 2000 × 3000 mm | 6.00 m² | £4,395–£5,095£3,662 ex VAT from | Configure |
| 2000 × 4000 mm | 8.00 m² | £5,595–£6,495£4,662 ex VAT from | Configure |
Guide prices include VAT at 20%, supply only, aluminium with triple glazing in a stock colour. Your fixed price is confirmed in writing on your quote before you order.
Planning and building regulations for Harrow
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 Harrow 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 Harrow
Is triple glazing heavier to lift?
Yes, the glass is roughly 45% heavier. Plan for extra hands or lifting equipment on larger lanterns.
Will triple glazing stop rain noise?
It reduces it noticeably. Laminated glass reduces it further.
Who checks building regulations for a lantern in Harrow?
Your local authority building control team or a registered building control approver. For a lantern in a new extension it forms part of the extension's approval; replacements in existing homes have their own rules.
Can you fit a roof lantern in Harrow?
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.