We cover all of South Glamorgan for roof lantern and rooflight repairs. Send photos by WhatsApp or the form for a free guide price; where a visit is needed to find the cause, it starts from £145 ex VAT and is confirmed before we come.
Repairs we carry out in South Glamorgan
Leaks and weatherproofing
- Leak repairs
- Resealing
- Glazing bars and cappings
- Ridge and hips
- Eaves beams and gutters
- Upstands and kerbs
- Roof junctions
Glass, condensation and heat
Frames, vents and finishes
Inspection, maintenance and make-safe
Replacement, orangeries and commercial
Guide prices for South Glamorgan: everyday repairs such as resealing, cappings and eaves typically £165–£595 ex VAT, kerb rebuilds up to £1,295, and new lanterns from £1,995. See all guide prices.
Roof lanterns in South Glamorgan
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.
Towns we cover in South Glamorgan
Rules for lantern work 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. See our building regulations guide for the detail in Wales.
Roof lantern repairs in South Glamorgan: questions
Do you cover all of South Glamorgan?
Yes — including Cardiff, Barry, Penarth, Cowbridge, Llantwit Major. Remote and island addresses are covered by arrangement.
Do you charge to look at photos?
No. Photo reviews and guide prices are free. Diagnostic visits are charged from £145 ex VAT and confirmed before we come.
What are the most common lantern problems in South Glamorgan?
Failed sealant and lifted cappings, blocked eaves drainage, kerb and roof-junction leaks, misted glass units and condensation on cold mornings.