Roof lantern upstands in Northampton
We quote roof lantern upstands for Northampton and the rest of Northamptonshire, matched to the exact size of your lantern, with the price confirmed in writing before you order.
Price a roof lantern upstand for Northampton
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Lantern upstands for Northampton projects
Insulated upstands and kerbs that raise the lantern above the roof finish.
In midsummer the noon sun stands about 61.2° high over Northampton, 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
- Roof membrane dressed up the outside
- Prefabricated insulated or site-built timber
Delivery and fitting in Northampton
Your quote includes delivery to Northampton at a confirmed price, usually to the kerbside or driveway on pallets.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in Northampton before quoting.
Delivery to NN1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Roof lantern upstands guide prices for Northampton
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 Northampton
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.
Planning-wise, a lantern on a new extension is judged as part of that extension, while one added to an existing roof can fall outside permitted development if it stands more than 150 mm proud.
Building regulations in Northampton 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 Northampton
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.
Who makes the upstand weatherproof?
Your roofer, by dressing the roof membrane up the outside of the upstand. The lantern then sits over it.
Do you deliver roof lanterns to Northampton?
Yes. Delivery to Northampton (NN1) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.
How quickly can I get a roof lantern in Northampton?
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 NN1.