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Hampshire · PO5

Glazing bar and capping repairs in Portsmouth

We cover Portsmouth and the wider Hampshire area for glazing bar and capping repairs. In short, we re-seat or replace lifted cappings, perished gaskets and loose glazing bar fixings — and you know the price before any work begins.

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In Portsmouth, as everywhere, each glazing bar on a roof lantern has a top capping that clamps the glass onto gaskets. Send photos and we'll tell you what we think has failed.

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

Is it time for glazing bar and capping repairs?

  • A capping visibly higher than its neighbours
  • Water running down one glazing bar inside
  • 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.

Covering Portsmouth and nearby

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.

From Southampton to Portsmouth is roughly 15 miles — all part of the Hampshire area we cover.

Close by, we also cover Gosport (2 miles), Fareham (5 miles), Ryde (6 miles).

Guide prices for glazing bar and capping repairs in Portsmouth

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?

Most lantern repairs in England need no approval at all. Where a job turns into a replacement, the Building Regulations 2010 apply and we confirm how the work will be signed off before we start. 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 Portsmouth: questions

Do you need to visit to price glazing bar and capping 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 Portsmouth do you cover?

As well as Portsmouth, we cover nearby Gosport, Fareham, Ryde, Havant and the rest of Hampshire.

How much do capping and gasket repairs cost?

Usually £165–£395 ex VAT per lantern depending on how many bars are affected, confirmed in writing before work starts.

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 Portsmouth

Glazing bar and capping repairs near Portsmouth

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

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