England · Triple glazed

Triple glazed roof lanterns in Greater London

We supply triple glazed roof lanterns across Greater London, from London to the smaller towns, priced to your kerb size and delivered to your site.

AreaGreater London

NationEngland

Towns listed80

Guide price from£1,795

Configure and price Call 0800 088 6248

Get a price in Greater London

Send your postcode and kerb size for a fixed written quote.

Choosing triple glazed roof lanterns in Greater London

Three panes for lower heat loss, a warmer inner surface and less noise.

Across Greater London, the shortest day brings around 7h 50m of daylight and the midsummer sun reaches about 61.9° at noon. A lantern collects light from the bright overhead sky all year, and the right glass keeps the long summer days comfortable.

Ideal for colder, exposed locations
Quieter in heavy rain
Approximate weight shown before you order
Warmer inner pane, less condensation risk

Delivery and fitting in Greater London

Delivery to mainland addresses here is quoted for your postcode and confirmed in writing before you order.

Fitting can be quoted where we have cover; send your postcode and photos of the roof and kerb and we will confirm before quoting.

Triple glazed roof lantern prices

What triple glazed roof lanterns cost in common sizes (guide, inc VAT, supply only):

Triple glazed roof lantern prices
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
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 in Greater London

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 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

Triple glazed roof lanterns in Greater London: questions

Will triple glazing stop rain noise?

It reduces it noticeably. Laminated glass reduces it further.

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.

Is triple glazing heavier to lift?

Yes, the glass is roughly 45% heavier. Plan for extra hands or lifting equipment on larger lanterns.

Who checks building regulations for a lantern in Greater 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.