Most roof lantern leaks start as small, preventable problems: blocked eaves, a lifted capping, a tired seal. Send photos from Merthyr Tydfil (CF47) and we'll tell you which it is — with the price agreed in writing before any work.
Is it time for cleaning and maintenance?
- Dirty glass or green algae on the frame
- You've never had it checked
- The lantern is under trees
What usually causes it?
Algae and dirt
Hold moisture against seals and spoil the view.
Unnoticed wear
Nobody looks at the roof until it leaks.
Roof lanterns in Merthyr Tydfil
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.
We cover Merthyr Tydfil as part of Mid Glamorgan, about 19 miles from Bridgend.
We also cover nearby Aberdare (4 miles), Tredegar (6 miles), Rhondda (7 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?
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 Merthyr Tydfil: questions
Can you repair a lantern someone else installed in Merthyr Tydfil?
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 Merthyr Tydfil do you cover?
As well as Merthyr Tydfil, we cover nearby Aberdare, Tredegar, Rhondda, Ebbw Vale and the rest of Mid Glamorgan.
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.
Other lantern repairs in Merthyr Tydfil
- Roof lantern resealing in Merthyr Tydfil
- Glazing bar and capping repairs in Merthyr Tydfil
- Ridge and hip repairs in Merthyr Tydfil
- Eaves beam and gutter repairs in Merthyr Tydfil
- Leak investigation and inspection in Merthyr Tydfil
- Orangery lantern repairs in Merthyr Tydfil
Cleaning and maintenance near Merthyr Tydfil
More about cleaning and maintenance · All roof lantern repairs in Merthyr Tydfil