We carry out upstand and kerb repairs in Aberdare and across the CF44 area. The upstand, or kerb, is the raised frame the lantern sits on.

What you might be seeing
- Water appearing below the lantern rather than from the glass
- Roof membrane not lapped up the kerb, or peeling off it
- Cold, damp or mouldy lining around the opening
Why it happens
Membrane not dressed up
The flat roof covering should run up the kerb and be trimmed or flashed. If it stops short, water gets behind it.
Rotten timber
Untreated or wet timber kerbs rot from inside, so the lantern loses support and the seals open.
Roof lanterns in Aberdare
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.
From Bridgend to Aberdare is roughly 15 miles — all part of the Mid Glamorgan area we cover.
Neighbouring places we cover include Rhondda (4 miles), Merthyr Tydfil (4 miles), Tonypandy (6 miles).
Guide prices for upstand and kerb repairs in Aberdare
Guide price for upstand and kerb repairs: £395–£1,295 ex VAT (£474–£1,554 inc 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.
Upstand and kerb repairs in Aberdare: questions
Do you cover Aberdare?
Yes. We cover Aberdare, including the CF44 postcode area, as part of Mid Glamorgan. 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.
How do I get a price for upstand and kerb repairs in Aberdare?
Send a few photos of the lantern and the problem, with your Aberdare postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
How much does an upstand repair cost?
Typically £395–£1,295 ex VAT depending on size, timber condition and the roof covering. The fixed price is confirmed in writing before work starts.
Can you add insulation to the kerb?
Yes. Insulated kerbs reduce cold bridging and help with condensation around the opening.
Other lantern repairs in Aberdare
- Glazing bar and capping repairs in Aberdare
- Flat roof junction and flashing repairs in Aberdare
- Misted glass unit replacement in Aberdare
- Solar control and self-cleaning glass upgrades in Aberdare
- Leak investigation and inspection in Aberdare
- Urgent leak make-safe in Aberdare
Upstand and kerb repairs near Aberdare
More about upstand and kerb repairs · All roof lantern repairs in Aberdare