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Hertfordshire · WD6

Glazing bar and capping repairs in Borehamwood

Dealing with a lifted capping or perished gasket in Borehamwood (WD6)? We re-seat or replace lifted cappings, perished gaskets and loose glazing bar fixings, with a fixed price agreed in writing first.

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Each glazing bar on a roof lantern has a top capping that clamps the glass onto gaskets. Send photos from Borehamwood (WD6) and we'll tell you which it is — with the price agreed in writing before any work.

Roof lantern glazing bar with the top capping lifted to show the gasket beneath

Is it time for glazing bar and capping repairs?

  • Water running down one glazing bar inside
  • Rattling or whistling in wind
  • End caps missing at the bottom of a bar

Why it happens

Gasket shrinkage

Rubber gaskets shrink back from the ends over time, leaving a gap at the ridge or eaves.

Damage

Ladders, window cleaning or someone stepping on a lantern can bend a capping or unclip it.

Roof lanterns in Borehamwood

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.

Borehamwood is around 7 miles from St Albans, and both are within our Hertfordshire coverage.

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

Guide prices for glazing bar and capping repairs in Borehamwood

Guide price, per lantern£165–£395 ex VAT£198–£474 inc VAT

Guide price for glazing bar and capping repairs: £165–£395 ex VAT (£198–£474 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?

In England, like-for-like repairs to a roof lantern don't usually involve building control. A full replacement or a bigger opening is controlled under the Building Regulations 2010, so we set out the route in writing first. 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.

Glazing bar and capping 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 a capping just be clipped back on?

Sometimes, if nothing underneath has failed. We check the gaskets first, because clipping a capping over a perished gasket doesn't stop the leak.

Do you repair uPVC and timber lantern bars too?

Yes. Timber lanterns use different beads and cappings, and we repair those as part of timber lantern repairs.

Other lantern repairs in Borehamwood

Glazing bar and capping repairs near Borehamwood

More about glazing bar and capping repairs · All roof lantern repairs in Borehamwood

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