Commercial lanterns and atrium rooflights fail in the same ways as domestic ones, but access, safety and disruption matter more. We carry out commercial roof lantern repairs across South Glamorgan, with a guide price from your photos and a fixed price in writing before any work starts.
Signs you need commercial roof lantern repairs
- Leaks into trading or office areas
- Insurance or landlord requirement for a report
- Managed buildings with planned maintenance needs
What usually causes it?
Scale
More lanterns, more joints, more drainage to block.
Deferred maintenance
Leaks appear when maintenance has slipped.
Roof lanterns in South Glamorgan
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.
What should you expect to pay for commercial roof lantern repairs in South Glamorgan?
Most commercial roof lantern repairs jobs come in between £495 and £2,995 ex VAT (£594–£3,594 including VAT), per lantern. 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.
Commercial roof lantern repairs in South Glamorgan: questions
What do commercial lantern repairs cost?
From about £495 ex VAT per lantern; programmes, access equipment and out-of-hours work are priced on survey and confirmed in writing.
Do you provide RAMS?
Yes, before work starts.
Which towns in South Glamorgan do you cover?
All of South Glamorgan, including Cardiff, Barry, Penarth, Cowbridge, Llantwit Major. Rural and remote addresses are covered by arrangement.
How do I get a price for commercial roof lantern repairs in South Glamorgan?
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 South Glamorgan
- Roof lantern leak repairs in South Glamorgan
- Upstand and kerb repairs in South Glamorgan
- Misted glass unit replacement in South Glamorgan
- uPVC roof lantern repairs in South Glamorgan
- Opening vent and actuator repairs in South Glamorgan
- Roof lantern respraying in South Glamorgan
Nearby areas
- Commercial roof lantern repairs in Mid Glamorgan
- Commercial roof lantern repairs in Gwent
- Commercial roof lantern repairs in West Glamorgan
- Commercial roof lantern repairs in Powys
- Commercial roof lantern repairs in Dyfed
More about commercial roof lantern repairs · All roof lantern repairs in South Glamorgan