Flat rooflights in Dereham
Whether your Dereham extension is still on paper or the roof is already on, we can price a flat rooflight to suit it. Standard sizes cost less and arrive sooner; made-to-measure fits a kerb that is already built.
Price a flat rooflight for Dereham
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Flat rooflights for Dereham homes
A single near-flat pane on an upstand: minimal, low and discreet.
In midsummer the noon sun stands about 60.8° high over Dereham, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- Fixed or electric opening versions
- Usually cheaper than a lantern
- Sized to your upstand
Delivery and fitting in Dereham
We confirm the delivery cost and date for NR19 on your quote. Lanterns arrive palletised, with the glass packed separately.
Fitting in Dereham can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to NR19 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Flat rooflight prices for Dereham
What flat rooflights cost in common sizes (guide, inc VAT, supply only):
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1000 mm | 1.00 m² | £595–£695£496 ex VAT from | Configure |
| 1200 × 1200 mm | 1.44 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 Dereham
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 Dereham 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 Dereham
Can a flat rooflight open?
Some ranges offer electric opening versions. Ask for availability for your size.
Can I walk on a flat rooflight?
Only if it is a walk-on rooflight designed for foot traffic. Standard rooflights are not designed to be walked on.
Do you deliver roof lanterns to Dereham?
Yes. Delivery to Dereham (NR19) 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 Dereham?
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 NR19.