Most roof lantern leaks start as small, preventable problems: blocked eaves, a lifted capping, a tired seal. Send photos from Mold (CH7) 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
- Leaves or moss at the eaves
- The lantern is under trees
Why it happens
Algae and dirt
Hold moisture against seals and spoil the view.
Unnoticed wear
Nobody looks at the roof until it leaks.
Roof lanterns in Mold
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.
From Wrexham to Mold is roughly 10 miles — all part of the Clwyd area we cover.
If you're just outside Mold, we also cover Buckley (2 miles), Deeside (5 miles), Flint (5 miles).
How much should it cost?
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 Mold: questions
Can you repair a lantern someone else installed in Mold?
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 Mold do you cover?
As well as Mold, we cover nearby Buckley, Deeside, Flint, Ruthin and the rest of Clwyd.
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 Mold
- Upstand and kerb repairs in Mold
- Flat roof junction and flashing repairs in Mold
- Cracked lantern glass replacement in Mold
- Slipped glass panel repairs in Mold
- Timber roof lantern repairs in Mold
- Commercial roof lantern repairs in Mold
Cleaning and maintenance near Mold
More about cleaning and maintenance · All roof lantern repairs in Mold