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Selby · North Yorkshire

Damp investigation after cavity insulation in Selby

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

Book a damp investigation in Selby

Covering Selby and the YO8 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 Selby properties

Our North Yorkshire coverage takes in Selby (YO8) and nearby York and Harrogate. It is about 12 miles south of York.

If your Selby installation has a guarantee, we check it first; the guarantee route may cover the work. Defects such as failed pointing, leaking gutters and bridged damp-proof courses are listed and priced separately for Selby properties, so you can choose who fixes them.

Wind-driven rain is the first thing the surveyor weighs up. North Yorkshire 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.

On the rules side, if cavity wall insulation follows in Selby, 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 Selby

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

Guide prices for Selby

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.

The steps for a damp investigation in Selby:

  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 Selby: questions

Do you cold-call in Selby?

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

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.

How soon can you visit in Selby?

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.

What will I get from a damp investigation in Selby?

A visit at an agreed price, photos of what we find, and a written summary in plain English. Any follow-on work is priced separately so you can choose who does it.

Nearby towns

Book a damp investigation in Selby

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