Large roof lanterns in Thamesmead
Order large roof lanterns for delivery to Thamesmead and nearby Barking and Welling. Every lantern is checked against your measurements before it is ordered, and the price on your quote is fixed for the specification shown; any extra work is agreed with you first.
Price a large roof lantern for Thamesmead
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Large roof lanterns for Thamesmead homes
Lanterns of three metres and more for open-plan extensions, with intermediate rafters.
In midsummer the noon sun stands about 61.9° high over Thamesmead, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- Lengths from about three to six metres
- Intermediate rafters carry the larger glass
- Solar-control glass recommended
Delivery and fitting in Thamesmead
We confirm the delivery cost and date for SE28 on your quote. Lanterns arrive palletised, with the glass packed separately.
If you would like us to fit it, we will check fitting cover for SE28 and quote a fixed price after seeing photos or surveying.
Delivery to SE28 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Large roof lantern prices for Thamesmead
Guide prices for common large roof lantern sizes, including VAT, supply only:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1500 × 3000 mm | 4.50 m² | £2,595–£2,995£2,162 ex VAT from | Configure |
| 2000 × 3000 mm | 6.00 m² | £3,195–£3,695£2,662 ex VAT from | Configure |
| 2000 × 4000 mm | 8.00 m² | £4,095–£4,795£3,412 ex VAT from | Configure |
| 2500 × 4000 mm | 10.00 m² | £4,895–£5,695£4,079 ex VAT from | Configure |
Guide prices include VAT at 20%, supply only, aluminium with self-cleaning double glazing in a stock colour. Your fixed price is confirmed in writing on your quote before you order.
Planning and building regulations for Thamesmead
For homes in England, a new or replacement rooflight should achieve a U-value of 2.2 W/m²K or better in the horizontal position, under Approved Document L.
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 Thamesmead 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 Thamesmead
What is the biggest roof lantern you can supply?
It depends on the range. Some go to about 6 m by 4 m with intermediate rafters. Send us your kerb size and we will confirm what can be made.
Does a large lantern need structural calculations?
The roof structure around it usually does. Your engineer or building control body will want the lantern's weight and the opening size.
Who checks building regulations for a lantern in Thamesmead?
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.
How quickly can I get a roof lantern in Thamesmead?
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 SE28.