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Cambridgeshire · England

Damp investigation after cavity insulation in Cambridgeshire

Damp investigation after cavity insulation across Cambridgeshire, priced before you book, with the findings written up and photographed. 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 Cambridgeshire

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Damp investigation after cavity insulation across Cambridgeshire

We cover 8 towns in Cambridgeshire, including Peterborough, Cambridge, Wisbech, St Neots, Huntingdon and more.

Wind-driven rain is the first thing the surveyor weighs up. Much of Cambridgeshire sits in the more sheltered driving-rain zones of the UK, which widens the choice of fill. Exposed elevations, coastal sites and high ground still get checked wall by wall.

We never cold-call in Cambridgeshire or anywhere else, and we do not work with doorstep claims companies. If your Cambridgeshire 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.

Common causes we check

Defective pointing, cracked render and porous bricks letting rain in; leaking gutters and downpipes; fill bridging the cavity where mortar droppings or debris have collected; ground levels above the damp-proof course; and condensation from cooking, drying clothes and too little ventilation.

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 Cambridgeshire

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 Cambridgeshire:

  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 Cambridgeshire: questions

Do you cover all of Cambridgeshire?

Yes. We cover 8 towns across Cambridgeshire, including Peterborough, Cambridge, Wisbech and St Neots, and the villages around them. Island and remote addresses are surveyed by arrangement.

Is there VAT on a damp investigation in Cambridgeshire?

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.

How much does a damp investigation cost in Cambridgeshire?

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

Do you work on rented homes in Cambridgeshire?

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

Damp investigation after cavity insulation in nearby areas

Book a damp investigation in Cambridgeshire

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