Triple glazed roof lanterns
Triple glazed roof lanterns use glazing units with three panes and two cavities. They lose less heat than double glazing, keep the inner pane warmer, which reduces the chance of condensation, and cut more rain and traffic noise.
Get a price for a triple glazed roof lantern
Send your kerb size and we will reply with a fixed written quote.
In short: Three panes for lower heat loss, a warmer inner surface and less noise. Guide prices start from £1,795 including VAT, supply only.
Is triple glazing worth it on a lantern?
It makes most sense on large lanterns, in colder and more exposed parts of the UK, in rooms that are heated for long hours and where rain noise matters, such as bedrooms or home offices. On a small lantern the saving is smaller relative to the extra cost.
What changes with triple glazing?
Triple units are thicker and heavier, so the lantern frame must be designed to accept them. That limits the ranges and maximum sizes available, and adds to delivery weight. We show an approximate triple-glazed weight in the configurator.
What does triple glazing cost?
Expect roughly 40% more on the lantern price than standard double glazing. Guide prices below are for triple glazed lanterns, including VAT.
Triple glazed roof lantern prices by size
| 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.
What you get
- Units
- Three panes, two cavities
- Benefit
- Lower U-value, warmer inner pane
- Noise
- Better reduction of rain and traffic noise
- Weight
- Heavier than double glazing
- Availability
- Selected ranges and sizes
Three checks
- Measure the outside of the kerb, width then length, and check the diagonals. How to measure.
- Check the glazing allowance for your extension and whether you need planning permission. See building regulations and planning.
- Plan the lift. Your quote gives the approximate weight so your installer can plan access and lifting.
Triple glazed roof lanterns: common questions
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.
Is triple glazing heavier to lift?
Yes, the glass is roughly 45% heavier. Plan for extra hands or lifting equipment on larger lanterns.
Can I have triple glazing with solar control?
Yes. Triple units usually include a solar-control or neutral coating.
Triple glazed roof lanterns by area
We deliver triple glazed roof lanterns across mainland Britain. Choose your area for local delivery and regulation notes.
England
- Bedfordshire
- Berkshire
- Bristol
- Buckinghamshire
- Cambridgeshire
- Cheshire
- Cornwall
- Cumbria
- Derbyshire
- Devon
- Dorset
- County Durham
- East Riding of Yorkshire
- East Sussex
- Essex
- Gloucestershire
- Greater London
- Greater Manchester
- Hampshire
- Herefordshire
- Hertfordshire
- Isle of Wight
- Kent
- Lancashire
- Leicestershire
- Lincolnshire
- Merseyside
- Norfolk
- North Yorkshire
- Northamptonshire
- Northumberland
- Nottinghamshire
- Oxfordshire
- Rutland
- Shropshire
- Somerset
- South Yorkshire
- Staffordshire
- Suffolk
- Surrey
- Tyne and Wear
- Warwickshire
- West Midlands
- West Sussex
- West Yorkshire
- Wiltshire
- Worcestershire
Wales
Scotland
- Aberdeen and Aberdeenshire
- Dundee and Angus
- Argyll and Bute
- Ayrshire
- Dumfries and Galloway
- Edinburgh and the Lothians
- Fife
- Forth Valley
- Greater Glasgow
- Highlands and Islands
- Lanarkshire
- Moray
- Perth and Kinross
- Scottish Borders