Roof lantern upstands in Gerrards Cross
Ordering a roof lantern upstand for a project in Gerrards Cross? Tell us the lantern size and roof details and we will confirm the price, lead time and how it reaches SL9.
Price a roof lantern upstand for Gerrards Cross
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Lantern upstands for Gerrards Cross projects
Insulated upstands and kerbs that raise the lantern above the roof finish.
In midsummer the noon sun stands about 61.9° high over Gerrards Cross, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- Ordered with your lantern if you wish
- Lifts the lantern clear of the roof finish
- Made to match the lantern's external size
Delivery and fitting in Gerrards Cross
We confirm the delivery cost and date for SL9 on your quote. Lanterns arrive palletised, with the glass packed separately.
Fitting in Gerrards Cross can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to SL9 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Roof lantern upstands guide prices for Gerrards Cross
Guide prices for an insulated upstand on its own, by lantern size, including VAT:
| Lantern kerb size | Perimeter | Insulated upstand, guide |
|---|---|---|
| 1500 × 1500 mm | 6.0 m | £295£246 ex VAT |
| 1500 × 2000 mm | 7.0 m | £295£246 ex VAT |
| 1500 × 2500 mm | 8.0 m | £345£288 ex VAT |
| 1500 × 3000 mm | 9.0 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 Gerrards Cross
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.
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 Gerrards Cross 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 Gerrards Cross
Do I need an upstand for a roof lantern?
Yes. Lanterns are designed to sit on an upstand, never directly on the roof deck.
Who makes the upstand weatherproof?
Your roofer, by dressing the roof membrane up the outside of the upstand. The lantern then sits over it.
Who checks building regulations for a lantern in Gerrards Cross?
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 Gerrards Cross?
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 SL9.