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South Yorkshire · England

Damp investigation after cavity insulation in South Yorkshire

For homes, landlords and businesses in South Yorkshire, a damp investigation comes with a clear price and a plain-English record. 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.

Moisture meter held against a damp, mould-spotted corner of an external wall indoors

Book a damp investigation in South Yorkshire

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Damp investigation after cavity insulation across South Yorkshire

We cover 6 towns in South Yorkshire, including Sheffield, Rotherham, Doncaster, Barnsley, Chapeltown and more.

Wind-driven rain is the first thing the surveyor weighs up. South Yorkshire 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 South Yorkshire installation has a guarantee, we check it first; the guarantee route may cover the work. Where a South Yorkshire 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.

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.

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

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

Damp investigation after cavity insulation prices in South Yorkshire

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 South Yorkshire:

  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 South Yorkshire: questions

Do you cover all of South Yorkshire?

Yes. We cover 6 towns across South Yorkshire, including Sheffield, Rotherham, Doncaster and Barnsley, and the villages around them. Island and remote addresses are surveyed by arrangement.

Do you cold-call in South Yorkshire?

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

Do you work on rented homes in South Yorkshire?

Yes. Landlords and agents in South Yorkshire can book batch visits, and work is arranged around tenants.

Is there VAT on a damp investigation in South Yorkshire?

Damp investigation after cavity insulation is not insulation, so it is normally charged at the standard rate of VAT. The VAT treatment is confirmed on your quote.

Damp investigation after cavity insulation in nearby areas

Book a damp investigation in South Yorkshire

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