If the room under your lantern overheats in summer or glares, the glass is usually the problem, not the frame. Send photos from Cowbridge (CF71) and we'll tell you which it is — with the price agreed in writing before any work.
What you might be seeing
- The room is noticeably hotter than the rest of the house in summer
- Glare on screens or worktops
- Clear, uncoated glass in an older lantern
Common causes we find
Orientation
South- and west-facing lanterns gain the most heat in the afternoon.
No ventilation
A lantern without opening vents traps warm air at ceiling level.
About Cowbridge and the CF71 area
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 Cowbridge as part of South Glamorgan, about 11 miles from Cardiff.
We also cover nearby Llantwit Major (4 miles), Bridgend (7 miles), Barry (8 miles).
How much should it cost?
Typical range: £345–£895 ex VAT, which is £414–£1,074 with VAT, per glass unit. 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.
Solar control and self-cleaning glass upgrades in Cowbridge: questions
How do I get a price for solar control and self-cleaning glass upgrades in Cowbridge?
Send a few photos of the lantern and the problem, with your Cowbridge postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
Can you repair a lantern someone else installed in Cowbridge?
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.
Can you add a film instead?
Films are cheaper but can affect the unit's warranty and may not suit sloped double glazing. We'd rather replace the unit properly.
Does self-cleaning glass mean no cleaning?
It reduces cleaning on the outer face but still needs rain and occasional rinsing, and the inside still needs cleaning.
Other lantern repairs in Cowbridge
- Roof lantern leak repairs in Cowbridge
- Roof lantern resealing in Cowbridge
- Misted glass unit replacement in Cowbridge
- Condensation diagnosis and fixes in Cowbridge
- Leak investigation and inspection in Cowbridge
- Urgent leak make-safe in Cowbridge
Solar control and self-cleaning glass upgrades near Cowbridge
More about solar control and self-cleaning glass upgrades · All roof lantern repairs in Cowbridge