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Llandrindod Wells · Powys

Damp investigation after cavity insulation in Llandrindod Wells

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

Book a damp investigation in Llandrindod Wells

Covering Llandrindod Wells and the LD1 district. Tell us about the property. We confirm the price before you book.

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Damp investigation after cavity insulation for Llandrindod Wells properties

Our Powys coverage takes in Llandrindod Wells (LD1) and nearby Newtown and Brecon. It is about 18 miles south of Newtown.

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

Before any material is chosen, exposure is checked. Parts of Powys face some of the heaviest wind-driven rain in the UK, especially exposed coastal and upland sites. Here the survey is stricter: some walls suit only certain certified systems, and some should not be filled at all.

For regulations, if cavity wall insulation follows in Llandrindod Wells, filling a cavity is notifiable work under the Building Regulations as they apply in Wales, usually self-certified through a competent person scheme.

Rules in Wales

Filling a cavity is notifiable work under the Building Regulations as they apply in Wales, usually self-certified through a competent person scheme if insulation work follows.

Sources: Welsh Government: building work competent person schemes; 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 Llandrindod Wells

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

Guide prices for Llandrindod Wells

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 Llandrindod Wells:

  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 Llandrindod Wells: questions

How much does a damp investigation cost in Llandrindod Wells?

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

Do you cover Llandrindod Wells?

Yes. Llandrindod Wells and the LD1 postcode district are within our Powys coverage, along with nearby Newtown and Brecon.

Is there VAT on a damp investigation in Llandrindod Wells?

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.

Will you tell me if I do not need any work?

Yes. If the findings show nothing needs doing, or a cheaper fix such as clearing a gutter will do, we say so.

Nearby towns

Book a damp investigation in Llandrindod Wells

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