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New Milton · Hampshire

Damp investigation after cavity insulation in New Milton

For properties in New Milton, 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 New Milton

Covering New Milton and the BH25 district. Tell us about the property. We confirm the price before you book.

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Damp investigation after cavity insulation for New Milton properties

If your property is in New Milton or the BH25 district or nearby Hythe, Totton and Southampton, it is within our Hampshire coverage. It is roughly 16 miles south-west of Southampton.

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

Local weather affects which walls can be filled. Hampshire 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 New Milton, 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.

What you get

Moisture readings, borescope photos at the affected areas, an explanation of the likely cause and the options, from simple repairs to partial or full extraction, each priced.

What is included in New Milton

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

Guide prices for New Milton

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.

From enquiry to finish in New Milton:

  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 New Milton: questions

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.

Is there VAT on a damp investigation in New Milton?

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 New Milton?

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

Do you cold-call in New Milton?

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

Nearby towns

Book a damp investigation in New Milton

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