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Godalming · Surrey

Damp investigation after cavity insulation in Godalming

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. In Godalming the visit is priced up front, and any follow-on work is quoted separately so you can choose.

Book a damp investigation in Godalming

Covering Godalming and the GU7 district. Tell us about the property. We confirm the price before you book.

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Damp investigation after cavity insulation for Godalming properties

We cover Godalming and the GU7 postcode district, including nearby Guildford, Farnham and Woking. It is roughly 4 miles south-west of Guildford.

If your Godalming installation has a guarantee, we check it first; the guarantee route may cover the work. Where a Godalming 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.

Exposure matters for every cavity wall. Much of Surrey 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.

For regulations, if cavity wall insulation follows in Godalming, 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.

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 in Godalming

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

Guide prices for Godalming

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 Godalming:

  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 Godalming: questions

How much does a damp investigation cost in Godalming?

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

How soon can you visit in Godalming?

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.

Do you cover Godalming?

Yes. Godalming and the GU7 postcode district are within our Surrey coverage, along with nearby Guildford and Farnham.

Is there VAT on a damp investigation in Godalming?

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.

Nearby towns

Book a damp investigation in Godalming

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