Most roof lantern leaks start as small, preventable problems: blocked eaves, a lifted capping, a tired seal. Send photos from Pwllheli (LL53) and we'll tell you which it is — with the price agreed in writing before any work.

Signs you need cleaning and maintenance
- Dirty glass or green algae on the frame
- You've never had it checked
- The lantern is under trees
Common causes we find
Debris
Leaves and moss block drainage.
Unnoticed wear
Nobody looks at the roof until it leaks.
Covering Pwllheli and nearby
Western and upland parts of the UK get more rain and more wind-driven rain than the east, and that's what finds weak cappings and blocked eaves first. Lanterns here benefit from a check of the bars on the most exposed face and a clear eaves channel before winter.
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).
Guide prices for cleaning and maintenance in Pwllheli
Guide price for cleaning and maintenance: £95–£245 ex VAT (£114–£294 inc VAT), per visit. 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?
Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in Wales. Replacing the whole lantern or enlarging the opening is different and falls under the Building Regulations 2010 (as applied in Wales); we confirm in writing which route applies before any replacement. 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?
- Send photosWhatsApp or upload a few photos and tell us when it leaks.
- Guide priceWe reply with a guide price and whether a visit is needed.
- Fixed price in writingYou approve the price and the date before anything starts.
- Repair and testWe fix what's failed, water-test where it matters, and send photos.
Cleaning and maintenance in Pwllheli: questions
How do I get a price for cleaning and maintenance in Pwllheli?
Send a few photos of the lantern and the problem, with your Pwllheli 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 Pwllheli do you cover?
As well as Pwllheli, we cover nearby Porthmadog, Caernarfon, Dolgellau, Llangefni and the rest of Gwynedd.
What does a maintenance visit cost?
Usually £95–£245 ex VAT per visit depending on size and access, confirmed in writing before the visit.
Can you set up regular visits?
Yes — tell us how often you'd like us to come and we'll confirm the price per visit in writing.
Other lantern repairs in Pwllheli
- Roof lantern resealing in Pwllheli
- Ridge and hip repairs in Pwllheli
- Aluminium roof lantern repairs in Pwllheli
- Opening vent and actuator repairs in Pwllheli
- Roof lantern respraying in Pwllheli
- Flat rooflight and skylight repairs in Pwllheli
Cleaning and maintenance near Pwllheli
More about cleaning and maintenance · All roof lantern repairs in Pwllheli