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Washington · Tyne and Wear

Damp investigation after cavity insulation in Washington

Damp investigation after cavity insulation in Washington is priced before you book, and what we find is written up with photos. 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 Washington

Covering Washington and the NE38 district. 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.

Damp investigation after cavity insulation for Washington properties

Our Tyne and Wear coverage takes in Washington (NE38) and nearby Houghton-Le-Spring, Hebburn and Sunderland. It is around 6 miles south-east of Newcastle upon Tyne.

Damp in an insulated Washington home is not always the insulation's fault, so the diagnosis comes before any extraction. We never cold-call in Washington or anywhere else, and we do not work with doorstep claims companies.

Every elevation is judged on its own exposure. Tyne and Wear 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.

On compliance, if cavity wall insulation follows in Washington, 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 Washington

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

Guide prices for Washington

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 Washington:

  1. Tell us what is happening

    Postcode, property type and what you have noticed.

  2. Price agreed first

    We confirm the price before anyone visits.

  3. Visit and checks

    Photos and readings at the areas that matter.

  4. Findings in writing

    What we found and the options, each priced separately.

Last reviewed 19 October 2026.

Damp investigation after cavity insulation in Washington: questions

Do you work on rented homes in Washington?

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

Is there VAT on a damp investigation in Washington?

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.

Do you cover Washington?

Yes. Washington and the NE38 postcode district are within our Tyne and Wear coverage, along with nearby Houghton-Le-Spring and Hebburn.

Do you cold-call in Washington?

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

Nearby towns

Book a damp investigation in Washington

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