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Gwent · NP25

Upstand and kerb repairs in Monmouth

Dealing with a rotten or leaking kerb in Monmouth (NP25)? We repair, raise, insulate or rebuild the kerb the lantern sits on and re-cover it, with a fixed price agreed in writing first.

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We carry out upstand and kerb repairs in Monmouth and across the NP25 area. The upstand, or kerb, is the raised frame the lantern sits on.

Roofer dressing EPDM membrane up the timber kerb under a roof lantern

What you might be seeing

  • Water appearing below the lantern rather than from the glass
  • Soft or spongy timber at the base of the lantern
  • Ponding water against the kerb after rain

What usually causes it?

Kerb too low

If the kerb doesn't rise enough above the finished roof, water sits against the joint during heavy rain.

Rotten timber

Untreated or wet timber kerbs rot from inside, so the lantern loses support and the seals open.

Covering Monmouth and nearby

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.

We cover Monmouth as part of Gwent, about 20 miles from Newport, Gwent.

Neighbouring places we cover include Chepstow (12 miles), Abergavenny (13 miles), Pontypool (16 miles).

What should you expect to pay in Monmouth?

Guide price, per lantern£395–£1,295 ex VAT£474–£1,554 inc VAT

Most upstand and kerb repairs jobs come in between £395 and £1,295 ex VAT (£474–£1,554 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?

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?

  1. Send photosWhatsApp or upload a few photos and tell us when it leaks.
  2. Guide priceWe reply with a guide price and whether a visit is needed.
  3. Fixed price in writingYou approve the price and the date before anything starts.
  4. Repair and testWe fix what's failed, water-test where it matters, and send photos.

Upstand and kerb repairs in Monmouth: questions

How do I get a price for upstand and kerb repairs in Monmouth?

Send a few photos of the lantern and the problem, with your Monmouth postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.

Which places near Monmouth do you cover?

As well as Monmouth, we cover nearby Chepstow, Abergavenny, Pontypool, Cwmbran and the rest of Gwent.

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 Monmouth

Upstand and kerb repairs near Monmouth

More about upstand and kerb repairs · All roof lantern repairs in Monmouth

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