Roof lantern installation in Grantham
For roof lantern installation in Grantham, start with the guide prices on this page, then send photos and measurements for a fixed written quote covering NG31.
Price lantern fitting for Grantham
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Lantern fitting for Grantham homes
Optional fitting by installers working under S&K, quoted for your postcode.
On the shortest day Grantham gets about 7h 35m of daylight, with the sun only 13.6° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.
- Weathertight check on completion
- Fixed price in writing before work starts
- Installers working under S&K
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.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in Grantham before quoting.
Delivery to NG31 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Roof lantern installation guide prices for Grantham
Guide prices for fitting only, by lantern size, including VAT (the lantern is priced separately):
| Lantern size | Fit to ready upstand | Replace existing lantern |
|---|---|---|
| 1500 × 1500 mm | £645 | £1,095 |
| 1000 × 3000 mm | £695 | £1,195 |
| 1500 × 2000 mm | £695 | £1,195 |
| 1500 × 2500 mm | £795 | £1,295 |
Fitting guide prices include VAT and exclude the lantern, access equipment and any roof or kerb repairs. New openings are priced after a survey. Your fixed price is confirmed in writing before work starts.
Planning and building regulations for Grantham
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.
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
Can you build the upstand as well?
We can quote for upstands and associated roofing on a survey basis.
How long does fitting take?
A lantern on a ready upstand is often fitted in a few hours. Replacement and new openings take longer.
Who checks building regulations for a lantern in Grantham?
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.
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.