Flat rooflights in Northampton
Choosing a flat rooflight for a house in Northampton? Start with the guide prices below, check the planning and building regulations notes for England, then ask for a fixed quote with delivery to NN1.
Price a flat rooflight for Northampton
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Flat rooflights for Northampton homes
A single near-flat pane on an upstand: minimal, low and discreet.
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.
- Usually cheaper than a lantern
- Sized to your upstand
- Fixed or electric opening versions
Delivery and fitting in Northampton
We confirm the delivery cost and date for NN1 on your quote. Lanterns arrive palletised, with the glass packed separately.
If you would like us to fit it, we will check fitting cover for NN1 and quote a fixed price after seeing photos or surveying.
Delivery to NN1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Flat rooflight prices for Northampton
Typical guide prices for flat rooflights, supply only and including VAT:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1200 × 1200 mm | 1.44 m² | £695–£845£579 ex VAT from | Configure |
| 1000 × 1500 mm | 1.50 m² | £695–£845£579 ex VAT from | Configure |
| 1000 × 2000 mm | 2.00 m² | £845–£995£704 ex VAT from | Configure |
| 1500 × 1500 mm | 2.25 m² | £895–£1,095£746 ex VAT from | Configure |
Guide prices include VAT at 20%, supply only, aluminium with self-cleaning double glazing in a stock colour. Your fixed price is confirmed in writing on your quote before you order.
Planning and building regulations for Northampton
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 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
Are flat rooflights cheaper than lanterns?
Usually, size for size. They use one glass unit and a simple frame.
Can a flat rooflight open?
Some ranges offer electric opening versions. Ask for availability for your size.
Who checks building regulations for a lantern in Northampton?
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.
Do I need planning permission for a roof lantern in Northampton?
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.