Most roof lantern leaks start as small, preventable problems: blocked eaves, a lifted capping, a tired seal. We carry out cleaning and maintenance across Gwynedd, with a guide price from your photos and a fixed price in writing before any work starts.
Signs you need cleaning and maintenance
- Leaves or moss at the eaves
- You've never had it checked
- The lantern is under trees
What usually causes it?
Debris
Leaves and moss block drainage.
Unnoticed wear
Nobody looks at the roof until it leaks.
Roof lanterns in Gwynedd
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.
Near the coast, salt in the air is hard on aluminium finishes and fixings; washing the frame occasionally and touching in chips keeps corrosion away.
What should you expect to pay for cleaning and maintenance in Gwynedd?
Most cleaning and maintenance jobs come in between £95 and £245 ex VAT (£114–£294 including 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?
Most lantern repairs in Wales need no approval at all. Where a job turns into a replacement, the Building Regulations 2010 (as applied in Wales) apply and we confirm how the work will be signed off before we start. 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 Gwynedd: questions
What does a maintenance visit cost?
Usually £95–£245 ex VAT per visit depending on size and access, confirmed in writing before the visit.
Do you clean the inside of the glass?
We can, where safe access from inside is possible; let us know when booking.
Which towns in Gwynedd do you cover?
All of Gwynedd, including Bangor, Gwynedd, Caernarfon, Dolgellau, Holyhead, Llangefni, Porthmadog. Rural and remote addresses are covered by arrangement.
How do I get a price for cleaning and maintenance in Gwynedd?
Send a few photos of the lantern and the problem with your postcode, by WhatsApp or the form. We reply with a guide price and confirm the fixed price in writing before any work starts.
Other repairs in Gwynedd
- Ridge and hip repairs in Gwynedd
- Solar control and self-cleaning glass upgrades in Gwynedd
- Aluminium roof lantern repairs in Gwynedd
- uPVC roof lantern repairs in Gwynedd
- Orangery lantern repairs in Gwynedd
- Commercial roof lantern repairs in Gwynedd
Nearby areas
- Cleaning and maintenance in Clwyd
- Cleaning and maintenance in Powys
- Cleaning and maintenance in Dyfed
- Cleaning and maintenance in West Glamorgan
- Cleaning and maintenance in Mid Glamorgan
More about cleaning and maintenance · All roof lantern repairs in Gwynedd