Triple glazed roof lanterns in London
Whether your London extension is still on paper or the roof is already on, we can price a triple glazed roof lantern to suit it. Standard sizes cost less and arrive sooner; made-to-measure fits a kerb that is already built.
Price a triple glazed roof lantern for London
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Triple glazed roof lanterns for London homes
Three panes for lower heat loss, a warmer inner surface and less noise.
Winter daylight in London lasts about 7h 49m, against 16h 38m in midsummer. Glass in the roof makes the most of the short days, and the right glass keeps the long ones comfortable.
- Ideal for colder, exposed locations
- Three panes for lower heat loss
- Quieter in heavy rain
Delivery and fitting in London
Your quote includes delivery to London at a confirmed price, usually to the kerbside or driveway on pallets.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in London before quoting.
Delivery to EC1A is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Triple glazed roof lantern prices for London
Guide prices for common triple glazed roof lantern sizes, including 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 |
| 1000 × 2000 mm | 2.00 m² | £2,095–£2,495£1,746 ex VAT from | Configure |
| 1500 × 2000 mm | 3.00 m² | £2,695–£3,195£2,246 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 London
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 London 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 London
Do I need triple glazing to meet building regulations?
Not usually. Well-specified double glazed lanterns generally meet the limiting values for rooflights. Triple glazing is an upgrade, not normally a requirement. Your building control body can confirm for your project.
Will triple glazing stop rain noise?
It reduces it noticeably. Laminated glass reduces it further.
Can you fit a roof lantern in London?
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.
Who checks building regulations for a lantern in London?
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.