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North Yorkshire · England

Damp investigation after cavity insulation in North Yorkshire

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. Our North Yorkshire coverage includes York, Middlesbrough, Harrogate and the towns around them.

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

Book a damp investigation in North Yorkshire

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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.

Damp investigation after cavity insulation across North Yorkshire

We cover 6 towns in North Yorkshire, including York, Middlesbrough, Harrogate, Scarborough, Redcar and more.

Local weather affects which walls can be filled. North 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.

We never cold-call in North Yorkshire or anywhere else, and we do not work with doorstep claims companies. If your North Yorkshire installation has a guarantee, we check it first; the guarantee route may cover the work.

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 North 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.

The steps for a damp investigation in North 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 North Yorkshire: questions

Do you cover all of North Yorkshire?

Yes. We cover 6 towns across North Yorkshire, including York, Middlesbrough, Harrogate and Scarborough, and the villages around them. Island and remote addresses are surveyed by arrangement.

Do you cold-call in North 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.

How much does a damp investigation cost in North Yorkshire?

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

Is there VAT on a damp investigation in North 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 North Yorkshire

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