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Gwynedd · LL40

Cleaning and maintenance in Dolgellau

If you're in Dolgellau and dealing with a lantern that has never been checked, we can help. We clear, clean and check lanterns so small problems are caught before they leak, and confirm the fixed price in writing before we start.

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We carry out cleaning and maintenance in Dolgellau and across the LL40 area. Most roof lantern leaks start as small, preventable problems: blocked eaves, a lifted capping, a tired seal.

Roof lantern glass being cleaned with a water-fed pole and brush on a flat roof

What you might be seeing

  • Dirty glass or green algae on the frame
  • Leaves or moss at the eaves
  • The lantern is under trees

Common causes we find

Debris

Leaves and moss block drainage.

Algae and dirt

Hold moisture against seals and spoil the view.

About Dolgellau and the LL40 area

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.

From Bangor, Gwynedd to Dolgellau is roughly 35 miles — all part of the Gwynedd area we cover.

Neighbouring places we cover include Machynlleth (11 miles), Porthmadog (16 miles), Aberystwyth (24 miles).

How much should it cost?

Guide price, per visit£95–£245 ex VAT£114–£294 inc VAT

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?

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.

Cleaning and maintenance in Dolgellau: questions

Can you repair a lantern someone else installed in Dolgellau?

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 Dolgellau do you cover?

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

Do you clean the inside of the glass?

We can, where safe access from inside is possible; let us know when booking.

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 Dolgellau

Cleaning and maintenance near Dolgellau

More about cleaning and maintenance · All roof lantern repairs in Dolgellau

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