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County Londonderry · BT47

Roof lantern replacement in Derry~Londonderry

Roof lantern replacement in Derry~Londonderry (BT47): we replace lanterns that are beyond economic repair, checking the kerb and re-making the junction. Start with a few photos by WhatsApp or the form and we'll come back with a guide price.

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We carry out roof lantern replacement in Derry~Londonderry and across the BT47 area. We're repair-first, but some lanterns are past it: distorted frames, rot through the main bars, or most of the glass failed.

Two installers lowering a new aluminium roof lantern onto a prepared timber kerb

What you might be seeing

  • Several misted or cracked units
  • Distorted or sagging frame
  • Repeated leaks after previous repairs

What usually causes it?

Age

Older lanterns can't be brought up to modern performance with repairs alone.

Structural damage

Impact or movement distorts the frame.

Covering Derry~Londonderry and nearby

Damp, mild winters keep moss and algae growing on flat roofs and lantern frames, which holds water against seals and blocks weep slots. Regular clearing makes a real difference in wetter areas.

Close by, we also cover Strabane (14 miles), Limavady (15 miles), Portstewart (27 miles).

What should you expect to pay in Derry~Londonderry?

Guide price, supplied and fitted£1,995–£4,995 ex VAT£2,394–£5,994 inc VAT

Typical range: £1,995–£4,995 ex VAT, which is £2,394–£5,994 with VAT, supplied and fitted. Towers or scaffold, where needed, are priced into the quote. Your fixed price is confirmed in writing before any work starts.

Do you need permission in Northern Ireland?

Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in Northern Ireland. Replacing the whole lantern or enlarging the opening is different and falls under the Building Regulations (Northern Ireland) 2012; we confirm in writing which route applies before any replacement. Listed buildings in Northern Ireland need listed building consent from the council for alterations; check with the council's planning service before changing a lantern on a listed property.

How does it work?

  1. Send photosWhatsApp or upload a few photos and tell us when it leaks.
  2. Guide priceWe reply with a guide price and whether a visit is needed.
  3. Fixed price in writingYou approve the price and the date before anything starts.
  4. Repair and testWe fix what's failed, water-test where it matters, and send photos.

Roof lantern replacement in Derry~Londonderry: questions

How do I get a price for roof lantern replacement in Derry~Londonderry?

Send a few photos of the lantern and the problem, with your Derry~Londonderry postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.

Which places near Derry~Londonderry do you cover?

As well as Derry~Londonderry, we cover nearby Strabane, Limavady, Portstewart, Coleraine and the rest of County Londonderry.

How much does a replacement roof lantern cost?

Standard sizes typically £1,995–£4,995 ex VAT supplied and fitted; bespoke sizes and kerb rebuilds are priced on survey. You get the fixed price in writing first.

Will you tell me if repair is enough?

Yes. We'd rather do a repair that works than sell a lantern you don't need.

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