Roof lantern upstands in Grantham
Need a roof lantern upstand in Grantham? Send your postcode and lantern size and we will quote a fixed price in writing, with delivery to NG31 or fitting where we have cover.
Price a roof lantern upstand for Grantham
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Lantern upstands for Grantham projects
Insulated upstands and kerbs that raise the lantern above the roof finish.
In midsummer the noon sun stands about 60.5° high over Grantham, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- Level and square for a correct fit
- Made to match the lantern's external size
- Prefabricated insulated or site-built timber
Delivery and fitting in Grantham
We confirm the delivery cost and date for NG31 on your quote. Lanterns arrive palletised, with the glass packed separately.
Fitting in Grantham can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to NG31 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Roof lantern upstands guide prices for Grantham
Guide prices for an insulated upstand on its own, by lantern size, including VAT:
| Lantern kerb size | Perimeter | Insulated upstand, guide |
|---|---|---|
| 1000 × 2000 mm | 6.0 m | £295£246 ex VAT |
| 1500 × 1500 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 Grantham
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.
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 Grantham 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 Grantham
Do I need an upstand for a roof lantern?
Yes. Lanterns are designed to sit on an upstand, never directly on the roof deck.
What height should my upstand be?
High enough to keep water away from the lantern seal, commonly at least 150 mm above the finished roof surface. Follow the instructions for your chosen range.
Is it worth having solar-control glass in Grantham?
With the midsummer sun about 60.5° high at noon, roof glass in Grantham gets strong summer sun. Solar control is recommended for large or south-facing lanterns.
Can you fit a roof lantern in Grantham?
We can quote for fitting where we have cover. Send your postcode and photos of the roof and kerb, and we will confirm before quoting.