Triple glazed roof lanterns in Seaford
Planning an extension in Seaford? A triple glazed roof lantern is one of the quickest ways to bring daylight into the middle of the room. Use the configurator for a guide price, then send your kerb size for a fixed quote and delivery date.
Price a triple glazed roof lantern for Seaford
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Triple glazed roof lanterns for Seaford homes
Three panes for lower heat loss, a warmer inner surface and less noise.
At 50.77°N, Seaford sees roughly 7h 57m of daylight in late December and 16h 30m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Three panes for lower heat loss
- Quieter in heavy rain
- Approximate weight shown before you order
Delivery and fitting in Seaford
Your quote includes delivery to Seaford at a confirmed price, usually to the kerbside or driveway on pallets.
If you would like us to fit it, we will check fitting cover for BN25 and quote a fixed price after seeing photos or surveying.
Delivery to BN25 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Triple glazed roof lantern prices for Seaford
Typical guide prices for triple glazed roof lanterns, supply only and including VAT:
| Kerb size | Roof area | Guide price | 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 for Seaford
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.
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 Seaford 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 Seaford
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.
Can I have triple glazing with solar control?
Yes. Triple units usually include a solar-control or neutral coating.
Do I need planning permission for a roof lantern in Seaford?
Often not, but it depends on the roof, the property and whether it is listed or in a conservation area. Check with your district, borough or unitary council before ordering.
How quickly can I get a roof lantern in Seaford?
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 BN25.