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Leigh · Greater Manchester

Damp investigation after cavity insulation in Leigh

Leigh homeowners, buyers, landlords and agents can book a damp investigation with the price agreed first. A damp investigation finds out why an insulated wall is showing damp or mould: rain getting in through defects, bridged or wet fill, debris in the cavity, a breached damp-proof course, or condensation.

Book a damp investigation in Leigh

Covering Leigh and the WN7 district. Tell us about the property. We confirm the price before you book.

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Damp investigation after cavity insulation for Leigh properties

Leigh is among the towns we cover in Greater Manchester, alongside Atherton, Tyldesley and Westhoughton. It is around 12 miles west of Manchester.

Where a Leigh wall does need work, bricks are lifted and rebuilt in matching mortar, and the cavity is checked with a camera before it is closed up. If your Leigh installation has a guarantee, we check it first; the guarantee route may cover the work.

Before any material is chosen, exposure is checked. Greater Manchester 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.

In terms of approvals, if cavity wall insulation follows in Leigh, filling a cavity is notifiable building work and needs a building notice or competent-person self-certification.

Rules in England

Filling a cavity is notifiable building work and needs a building notice or competent-person self-certification if insulation work follows.

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

What you get

Moisture readings, borescope photos at the affected areas, an explanation of the likely cause and the options, from simple repairs to partial or full extraction, each priced.

What is included in Leigh

  • Moisture mapping inside
  • Borescope at affected areas
  • External defects check
  • Cause and options in writing

Guide prices for Leigh

Damp investigation after cavity insulation guide prices
Damp investigation after cavity insulation guide pricesGuide price
Damp investigation with borescope£295–£495

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.

From enquiry to finish in Leigh:

  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.

Damp investigation after cavity insulation in Leigh: questions

How much does a damp investigation cost in Leigh?

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

Do you cover Leigh?

Yes. Leigh and the WN7 postcode district are within our Greater Manchester coverage, along with nearby Atherton and Tyldesley.

What will I get from a damp investigation in Leigh?

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.

Will you tell me if I do not need any work?

Yes. If the findings show nothing needs doing, or a cheaper fix such as clearing a gutter will do, we say so.

Nearby towns

Book a damp investigation in Leigh

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