Replacement roof lanterns in Darlington
We supply replacement roof lanterns to Darlington (DL3) and the rest of County Durham: sized in millimetres to your upstand, priced up front and delivered on pallets. Fitting can be quoted separately if you need it.
Price a replacement roof lantern for Darlington
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Replacement roof lanterns for Darlington homes
Swap a tired, leaking or polycarbonate lantern for modern double glazing.
In midsummer the noon sun stands about 58.9° high over Darlington, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- Often a one-day swap on a sound kerb
- Energy standards for replacements explained
- Replace old polycarbonate with glass
Delivery and fitting in Darlington
Your quote includes delivery to Darlington 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 Darlington before quoting.
Delivery to DL3 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Replacement roof lantern prices for Darlington
What replacement roof lanterns cost in common sizes (guide, inc VAT, supply only):
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1500 mm | 1.50 m² | £1,295–£1,495£1,079 ex VAT from | Configure |
| 1000 × 2000 mm | 2.00 m² | £1,495–£1,795£1,246 ex VAT from | Configure |
| 1500 × 2000 mm | 3.00 m² | £1,995–£2,295£1,662 ex VAT from | Configure |
| 2000 × 4000 mm | 8.00 m² | £4,095–£4,795£3,412 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 Darlington
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.
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 Darlington 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 Darlington
Can I replace polycarbonate panels with glass?
Usually not in the old frame: glass is much heavier than polycarbonate and the frame was not designed for it. Replacing the whole lantern is the safer route.
Will a new lantern be warmer?
A modern double glazed lantern with a thermally broken frame loses far less heat than polycarbonate.
How quickly can I get a roof lantern in Darlington?
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 DL3.
Do you deliver roof lanterns to Darlington?
Yes. Delivery to Darlington (DL3) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.