Roof lantern upstands in Welwyn Garden City
Ordering a roof lantern upstand for a project in Welwyn Garden City? Tell us the lantern size and roof details and we will confirm the price, lead time and how it reaches AL8.
Price a roof lantern upstand for Welwyn Garden City
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Lantern upstands for Welwyn Garden City projects
Insulated upstands and kerbs that raise the lantern above the roof finish.
At 51.8°N, Welwyn Garden City sees roughly 7h 46m of daylight in late December and 16h 42m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Ordered with your lantern if you wish
- Lifts the lantern clear of the roof finish
- Roof membrane dressed up the outside
Delivery and fitting in Welwyn Garden City
Your quote includes delivery to Welwyn Garden City at a confirmed price, usually to the kerbside or driveway on pallets.
Fitting in Welwyn Garden City can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to AL8 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Roof lantern upstands guide prices for Welwyn Garden City
Guide prices for an insulated upstand on its own, by lantern size, including VAT:
| Lantern kerb size | Perimeter | Insulated upstand, guide |
|---|---|---|
| 1000 × 1500 mm | 5.0 m | £245£204 ex VAT |
| 1000 × 2000 mm | 6.0 m | £295£246 ex VAT |
| 1000 × 2500 mm | 7.0 m | £295£246 ex VAT |
| 1000 × 3000 mm | 8.0 m | £345£288 ex VAT |
Guide prices include VAT at 20%, upstand only, supply only. Upstands are made to match the lantern's external size; your fixed price is confirmed in writing before you order.
Planning and building regulations for Welwyn Garden City
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.
Lanterns on permitted development extensions are part of the extension's height limits. Adding one to an existing roof is different: over 150 mm of projection can mean a planning application.
Building regulations in Welwyn Garden City 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 Welwyn Garden City
Who makes the upstand weatherproof?
Your roofer, by dressing the roof membrane up the outside of the upstand. The lantern then sits over it.
Can I order a lantern before the upstand is built?
Yes, if you build the upstand to the lantern's stated external size. Many people order the lantern and upstand together so they match.
Do you deliver roof lanterns to Welwyn Garden City?
Yes. Delivery to Welwyn Garden City (AL8) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.
Is it worth having solar-control glass in Welwyn Garden City?
With the midsummer sun about 61.6° high at noon, roof glass in Welwyn Garden City gets strong summer sun. Solar control is recommended for large or south-facing lanterns.