Triple glazed roof lanterns in Stevenage
Buy triple glazed roof lanterns for homes in Stevenage 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 SG1 address.
Price a triple glazed roof lantern for Stevenage
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Triple glazed roof lanterns for Stevenage homes
Three panes for lower heat loss, a warmer inner surface and less noise.
In midsummer the noon sun stands about 61.5° high over Stevenage, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- Quieter in heavy rain
- Three panes for lower heat loss
- Warmer inner pane, less condensation risk
Delivery and fitting in Stevenage
Delivery to SG1 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
If you would like us to fit it, we will check fitting cover for SG1 and quote a fixed price after seeing photos or surveying.
Delivery to SG1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Triple glazed roof lantern prices for Stevenage
Guide prices for common triple glazed roof lantern sizes, including VAT, supply only:
| Kerb size | Roof area | Guide price | 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 |
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 Stevenage
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.
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 Stevenage 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 Stevenage
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.
Is it worth having solar-control glass in Stevenage?
With the midsummer sun about 61.5° high at noon, roof glass in Stevenage gets strong summer sun. Solar control is recommended for large or south-facing lanterns.
Who checks building regulations for a lantern in Stevenage?
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.