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Ryde · Isle of Wight

Damp investigation after cavity insulation in Ryde

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. We cover Ryde and the wider PO33 postcode district, and the price is confirmed before anyone visits.

Book a damp investigation in Ryde

Covering Ryde and the PO33 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 Ryde properties

Ryde sits in the Isle of Wight. We work across the PO33 district, including nearby Sandown and Cowes.

Damp in an insulated Ryde 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 Ryde properties, so you can choose who fixes them.

Before any material is chosen, exposure is checked. The Isle of Wight 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.

In terms of approvals, if cavity wall insulation follows in Ryde, 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 Ryde

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

Guide prices for Ryde

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 Ryde:

  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 Ryde: questions

Do you cover Ryde?

Yes. Ryde and the PO33 postcode district are within our Isle of Wight coverage, along with nearby Sandown and Cowes.

How much does a damp investigation cost in Ryde?

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

Do you cold-call in Ryde?

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

Is there VAT on a damp investigation in Ryde?

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 Ryde

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