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Swindon · Wiltshire

Damp investigation after cavity insulation in Swindon

For properties in Swindon, a damp investigation starts with a clear price and ends with a written record of what was found and done. 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 Swindon

Covering Swindon and the SN1 district. Tell us about the property. We confirm the price before you book.

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Damp investigation after cavity insulation for Swindon properties

Swindon sits in Wiltshire. We work across the SN1 district, including nearby Chippenham and Trowbridge.

Damp in an insulated Swindon home is not always the insulation's fault, so the diagnosis comes before any extraction. Defects such as failed pointing, leaking gutters and bridged damp-proof courses are listed and priced separately for Swindon properties, so you can choose who fixes them.

Before any material is chosen, exposure is checked. Wiltshire 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.

As for paperwork, if cavity wall insulation follows in Swindon, 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 Swindon

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

Guide prices for Swindon

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.

What happens next for a Swindon property:

  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 Swindon: questions

Is there VAT on a damp investigation in Swindon?

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 Swindon?

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

How soon can you visit in Swindon?

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 work on rented homes in Swindon?

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

Nearby towns

Book a damp investigation in Swindon

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