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Gwynedd · LL53

Upstand and kerb repairs in Pwllheli

For upstand and kerb repairs in Pwllheli, the job is simple to describe: we repair, raise, insulate or rebuild the kerb the lantern sits on and re-cover it. Photos first, a guide price back, then a written fixed price.

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We carry out upstand and kerb repairs in Pwllheli and across the LL53 area. The upstand, or kerb, is the raised frame the lantern sits on.

Roofer dressing EPDM membrane up the timber kerb under a roof lantern

What you might be seeing

  • Soft or spongy timber at the base of the lantern
  • Roof membrane not lapped up the kerb, or peeling off it
  • Ponding water against the kerb after rain

Common causes we find

Membrane not dressed up

The flat roof covering should run up the kerb and be trimmed or flashed. If it stops short, water gets behind it.

Rotten timber

Untreated or wet timber kerbs rot from inside, so the lantern loses support and the seals open.

Covering Pwllheli and nearby

Wind-driven rain is the real test of a roof lantern, and the wetter west sees plenty of it. Leaks that appear only in a storm from one direction usually point to the cappings or eaves on that face — a useful clue when you send us photos.

Coastal wind drives rain hard against lanterns, so cappings and ridge seals on the seaward face take the most punishment.

We cover Pwllheli as part of Gwynedd, about 26 miles from Bangor, Gwynedd.

If you're just outside Pwllheli, we also cover Porthmadog (12 miles), Caernarfon (18 miles), Dolgellau (24 miles).

How much should it cost?

Guide price, per lantern£395–£1,295 ex VAT£474–£1,554 inc VAT

Most upstand and kerb repairs jobs come in between £395 and £1,295 ex VAT (£474–£1,554 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 Wales?

In Wales, 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 2010 (as applied in Wales), so we set out the route in writing first. Listed buildings in Wales need listed building consent from the local planning authority for alterations, with Cadw guidance on historic buildings; check with the council 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.

Upstand and kerb repairs in Pwllheli: questions

Can you repair a lantern someone else installed in Pwllheli?

Yes. We repair lanterns whoever fitted them. If yours is still under the installer's warranty, contact them first so you don't affect it.

Which places near Pwllheli do you cover?

As well as Pwllheli, we cover nearby Porthmadog, Caernarfon, Dolgellau, Llangefni and the rest of Gwynedd.

How much does an upstand repair cost?

Typically £395–£1,295 ex VAT depending on size, timber condition and the roof covering. The fixed price is confirmed in writing before work starts.

Can you add insulation to the kerb?

Yes. Insulated kerbs reduce cold bridging and help with condensation around the opening.

Other lantern repairs in Pwllheli

Upstand and kerb repairs near Pwllheli

More about upstand and kerb repairs · All roof lantern repairs in Pwllheli

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