0800 088 6248
CavityWallInsulationUKCAVITYWALLINSULATIONUK.CO.UK
Cavity wall insulationCavity wall suitability surveyCavity wall insulation removalCavity insulation top-upDamp investigation after cavity insulationBonded polystyrene bead insulationBlown mineral wool insulationParty wall cavity insulationBorescope cavity inspectionCavity wall insulation for landlordsGrant and funding checkLoft insulation
Blyth · Northumberland

Damp investigation after cavity insulation in Blyth

Blyth 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 Blyth

Covering Blyth and the NE24 district. Tell us about the property. We confirm the price before you book.

Enter a UK postcode.
Choose a service.
Enter your name.
Enter a phone number with at least 10 digits.
Enter a valid email address.

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 Blyth properties

Blyth sits in Northumberland. We work across the NE24 district, including nearby Ashington, Cramlington and Morpeth.

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

Exposure matters for every cavity wall. Northumberland 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 the rules side, if cavity wall insulation follows in Blyth, 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 Blyth

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

Guide prices for Blyth

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.

How it works in Blyth:

  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 Blyth: questions

Is there VAT on a damp investigation in Blyth?

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 Blyth?

Yes. Blyth and the NE24 postcode district are within our Northumberland coverage, along with nearby Ashington and Cramlington.

What will I get from a damp investigation in Blyth?

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 soon can you visit in Blyth?

We arrange dates when you get in touch. Availability varies through the year, so we give you real dates rather than a promise on the website.

Nearby towns

Book a damp investigation in Blyth

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