Most roof lantern leaks start as small, preventable problems: blocked eaves, a lifted capping, a tired seal. Send photos from Risca (NP11) and we'll tell you which it is — with the price agreed in writing before any work.

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.
Roof lanterns in Risca
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.
We cover Risca as part of Gwent, about 5 miles from Newport, Gwent.
Close by, we also cover Newport, Gwent (5 miles), Cwmbran (5 miles), Caerphilly (6 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 Risca: questions
Do you cover Risca?
Yes. We cover Risca, including the NP11 postcode area, as part of Gwent. Send photos by WhatsApp or the form for a free guide price, and we'll confirm the fixed price in writing before any work starts.
Do you need to visit to price cleaning and maintenance?
Not always. Clear photos are often enough for a guide price. Where the cause isn't obvious, a visit to inspect and water-test is charged from £145 ex VAT, confirmed before we come.
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 Risca
- Upstand and kerb repairs in Risca
- Slipped glass panel repairs in Risca
- Solar control and self-cleaning glass upgrades in Risca
- Roof lantern respraying in Risca
- Flat rooflight and skylight repairs in Risca
- Roof lantern replacement in Risca
Cleaning and maintenance near Risca
More about cleaning and maintenance · All roof lantern repairs in Risca