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Hertfordshire · WD6

Upstand and kerb repairs in Borehamwood

We cover Borehamwood and the wider Hertfordshire area for upstand and kerb repairs. In short, we repair, raise, insulate or rebuild the kerb the lantern sits on and re-cover it — and you know the price before any work begins.

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In Borehamwood, as everywhere, the upstand, or kerb, is the raised frame the lantern sits on. Send photos and we'll tell you what we think has failed.

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

What you might be seeing

  • Soft or spongy timber at the base of the lantern
  • Roof membrane not lapped up the kerb, or peeling off it
  • Ponding water against the kerb after rain

Common causes we find

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 Borehamwood and nearby

Most inland lantern leaks aren't storm damage; they're usually tired sealant, a lifted capping or blocked eaves drainage. All three are quick to find and fix once you know where to look.

From St Albans to Borehamwood is roughly 7 miles — all part of the Hertfordshire area we cover.

We also cover nearby Barnet (3 miles), Bushey (4 miles), Potters Bar (5 miles).

What should you expect to pay in Borehamwood?

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 Borehamwood: questions

Can you repair a lantern someone else installed in Borehamwood?

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.

Which places near Borehamwood do you cover?

As well as Borehamwood, we cover nearby Barnet, Bushey, Potters Bar, Watford and the rest of Hertfordshire.

Can you add insulation to the kerb?

Yes. Insulated kerbs reduce cold bridging and help with condensation around the opening.

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 Borehamwood

Upstand and kerb repairs near Borehamwood

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

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