Triple glazed roof lanterns in Windsor
Choosing a triple glazed roof lantern for a house in Windsor? Start with the guide prices below, check the planning and building regulations notes for England, then ask for a fixed quote with delivery to SL4.
Price a triple glazed roof lantern for Windsor
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Triple glazed roof lanterns for Windsor homes
Three panes for lower heat loss, a warmer inner surface and less noise.
At 51.48°N, Windsor sees roughly 7h 50m of daylight in late December and 16h 38m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Warmer inner pane, less condensation risk
- Three panes for lower heat loss
- Combines with solar-control coatings
Delivery and fitting in Windsor
We confirm the delivery cost and date for SL4 on your quote. Lanterns arrive palletised, with the glass packed separately.
Fitting in Windsor can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to SL4 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Triple glazed roof lantern prices for Windsor
Typical guide prices for triple glazed roof lanterns, supply only and including VAT:
| 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 |
| 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 Windsor
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.
Planning-wise, a lantern on a new extension is judged as part of that extension, while one added to an existing roof can fall outside permitted development if it stands more than 150 mm proud.
Building regulations in Windsor 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 Windsor
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 it worth having solar-control glass in Windsor?
With the midsummer sun about 62.0° high at noon, roof glass in Windsor gets strong summer sun. Solar control is recommended for large or south-facing lanterns.
How quickly can I get a roof lantern in Windsor?
Stock sizes are typically ready in 5–10 working days, made-to-measure in 3–4 weeks, plus delivery. Your quote gives the date for SL4.