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Kent · DA1

Upstand and kerb repairs in Dartford

Got a rotten or leaking kerb in Dartford? We repair, raise, insulate or rebuild the kerb the lantern sits on and re-cover it. Send photos for a free guide price — you'll get a fixed price in writing before any work starts.

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We carry out upstand and kerb repairs in Dartford and across the DA1 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

Why it happens

Kerb too low

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

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.

Roof lanterns in Dartford

Sun and UV do more damage than rain on many lanterns here: brittle ridge caps, chalky finishes and hardened gaskets. They're cheap to replace before they let water in.

Coastal wind drives rain hard against lanterns, so cappings and ridge seals on the seaward face take the most punishment.

From Maidstone to Dartford is roughly 18 miles — all part of the Kent area we cover.

We also cover nearby Bexley (3 miles), Swanley (4 miles), Welling (5 miles).

What should you expect to pay in Dartford?

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

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 England?

Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in England. Replacing the whole lantern or enlarging the opening is different and falls under the Building Regulations 2010; we confirm in writing which route applies before any replacement. Listed buildings need listed building consent from the local council for alterations, and conservation areas can have extra controls; like-for-like repairs are treated differently from changes, so check with the council's conservation officer first.

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 Dartford: questions

Do you need to visit to price upstand and kerb repairs?

Not always. Clear photos are often enough for a guide price. Where the cause isn't obvious, a visit to inspect and water-test is charged from £145 ex VAT, confirmed before we come.

Which places near Dartford do you cover?

As well as Dartford, we cover nearby Bexley, Swanley, Welling, South Ockendon and the rest of Kent.

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.

Will my ceiling need repairing?

If water has soaked the lining it may need making good after the leak is fixed; we can advise, but internal decorating isn't included unless quoted.

Other lantern repairs in Dartford

Upstand and kerb repairs near Dartford

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

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