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County Londonderry · BT55

uPVC roof lantern repairs in Portstewart

If you're in Portstewart and dealing with a tired uPVC lantern, we can help. We replace brittle end caps, cappings and gaskets and reseal uPVC lanterns, and confirm the fixed price in writing before we start.

Get a guide priceCall 0800 088 6248

In Portstewart, as everywhere, many uPVC roof lanterns have an aluminium core with uPVC cladding and cappings. Send photos and we'll tell you what we think has failed.

Weathered white uPVC roof lantern on a single-storey rear extension

Signs you need uPVC roof lantern repairs

  • Yellowed or brittle end caps
  • Green algae along the bars
  • Rattling or whistling in wind

Why it happens

UV ageing

uPVC components become brittle and crack after years of sun.

Blocked drainage

As with all lanterns, blocked eaves drainage causes overflow.

Roof lanterns in Portstewart

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.

From Derry~Londonderry to Portstewart is roughly 27 miles — all part of the County Londonderry area we cover.

If you're just outside Portstewart, we also cover Coleraine (4 miles), Ballymoney (11 miles), Limavady (13 miles).

Guide prices for uPVC roof lantern repairs in Portstewart

Guide price, per lantern£175–£595 ex VAT£210–£714 inc VAT

Most uPVC roof lantern repairs jobs come in between £175 and £595 ex VAT (£210–£714 including VAT), per lantern. 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?

In Northern Ireland, like-for-like repairs to a roof lantern don't usually involve building control. A full replacement or a bigger opening is controlled under the Building Regulations (Northern Ireland) 2012, so we set out the route in writing first. 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.

uPVC roof lantern repairs in Portstewart: questions

How do I get a price for uPVC roof lantern repairs in Portstewart?

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

Do you need to visit to price uPVC roof lantern repairs?

Not always. Clear photos are often enough for a guide price. Where the cause isn't obvious, a visit to inspect and water-test is charged from £145 ex VAT, confirmed before we come.

What does a uPVC lantern repair cost?

Usually £175–£595 ex VAT per lantern, confirmed in writing before work starts.

Is it worth repairing an old uPVC lantern?

If the glass is sound and the frame isn't distorted, a repair is usually far cheaper than replacement.

Other lantern repairs in Portstewart

uPVC roof lantern repairs near Portstewart

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