Roof lantern upstands in Blackburn
For roof lantern upstands in Blackburn, start with the guide prices on this page, then send photos and measurements for a fixed written quote covering BB1.
Price a roof lantern upstand for Blackburn
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Lantern upstands for Blackburn projects
Insulated upstands and kerbs that raise the lantern above the roof finish.
On the shortest day Blackburn gets about 7h 25m of daylight, with the sun only 12.8° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.
- Ordered with your lantern if you wish
- Roof membrane dressed up the outside
- Made to match the lantern's external size
Delivery and fitting in Blackburn
Delivery to BB1 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
If you would like us to fit it, we will check fitting cover for BB1 and quote a fixed price after seeing photos or surveying.
Delivery to BB1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Roof lantern upstands guide prices for Blackburn
Guide prices for an insulated upstand on its own, by lantern size, including VAT:
| Lantern kerb size | Perimeter | Insulated upstand, guide |
|---|---|---|
| 1200 × 1200 mm | 4.8 m | £245£204 ex VAT |
| 1000 × 1500 mm | 5.0 m | £245£204 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 Blackburn
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 Blackburn 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 Blackburn
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.
Is it worth having solar-control glass in Blackburn?
With the midsummer sun about 59.7° high at noon, roof glass in Blackburn gets strong summer sun. Solar control is recommended for large or south-facing lanterns.
Do I need planning permission for a roof lantern in Blackburn?
Often not, but it depends on the roof, the property and whether it is listed or in a conservation area. Check with your district, borough or unitary council before ordering.