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County Durham · England

Wall tie replacement in County Durham

Wall tie replacement across County Durham, priced before you book, with the findings written up and photographed. Wall tie replacement fixes the outer and inner leaves of a cavity wall back together where the original ties have corroded.

Drilling a mortar joint to fit a remedial stainless steel wall tie

Book a wall tie inspection in County Durham

Tell us about the property. We confirm the price before you book.

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We use your details only to answer this enquiry and arrange your visit, sharing them only with the registered installer we appoint for your job and the providers named in our privacy notice. No marketing lists, no cold calls.

Wall tie replacement across County Durham

We cover 13 towns in County Durham, including Darlington, Hartlepool, Stockton-on-Tees, Durham, Chester-le-Street and more.

Before any material is chosen, exposure is checked. County Durham has a mix of moderate and more exposed sites. Hilltop, coastal and west-facing walls take the brunt of wind-driven rain, so the survey records exposure for each elevation before a material is chosen.

If your County Durham installation has a guarantee, we check it first; the guarantee route may cover the work. Defects such as failed pointing, leaking gutters and bridged damp-proof courses are listed and priced separately for County Durham properties, so you can choose who fixes them.

Building Regulations in England

Filling an existing cavity wall is notifiable building work in England. Either a building notice goes to building control before the work, or the installer self-certifies it through a government-approved competent person scheme such as CIGA's CWISC scheme. The insulation used must also be suitable for the wall it goes into, which is why the survey checks construction, condition and exposure first.

Sources: Planning Portal: cavity wall insulation and building regulations; CIGA: CWISC competent person scheme.

Signs of wall tie failure

Horizontal cracks in mortar joints at regular vertical intervals, bulging brickwork, or lifting of the roof verge. Older galvanised ties, especially in walls built before the 1980s, are the usual suspects.

What is included

  • Tie inspection with metal detector and borescope
  • Remedial stainless ties to a set pattern
  • Isolation or removal of old ties where needed
  • Making good

Wall tie replacement prices in County Durham

Wall tie replacement guide prices
Wall tie replacement guide pricesGuide price
Remedial wall ties, detached house£1,995–£3,495
Remedial wall ties, semi-detached house£1,495–£2,495
Remedial wall ties, terraced house£995–£1,795

This work is not insulation, so it is normally standard-rated for VAT. Guide prices include VAT where it applies. Guide ranges only: the fixed price is confirmed in writing before any work starts, and anything that could not be seen at survey is agreed with you first.

How it works in County Durham:

  1. Get in touch

    Online, by phone or WhatsApp.

  2. Your price

    Confirmed in writing before you book.

  3. The visit

    Carried out at an agreed time, with photos of what we find.

  4. Your report

    Plain English, with any follow-on work quoted separately.

Last reviewed 19 October 2026.

Wall tie replacement in County Durham: questions

Do you cover all of County Durham?

Yes. We cover 13 towns across County Durham, including Darlington, Hartlepool, Stockton-on-Tees and Durham, and the villages around them. Island and remote addresses are surveyed by arrangement.

What will I get from wall tie replacement in County Durham?

A visit at an agreed price, photos of what we find, and a written summary in plain English. Any follow-on work is priced separately so you can choose who does it.

How much does wall tie replacement cost in County Durham?

Guide prices are shown on this page, and the price for your County Durham property is confirmed before you book.

Do you cold-call in County Durham?

No. We only come out when you have asked us to. If someone cold-calls offering free insulation, check before you agree to anything.

Wall tie replacement in nearby areas

Book a wall tie inspection in County Durham

Priced before you book. Findings in writing. No cold calls.