Damp investigation after cavity insulation for South Croydon properties
South Croydon is among the towns we cover in Greater London, alongside Croydon, Purley and Wallington. It is roughly 10 miles south of London.
Damp in an insulated South Croydon home is not always the insulation's fault, so the diagnosis comes before any extraction. Where a South Croydon 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.
Exposure matters for every cavity wall. Much of Greater London sits in the more sheltered driving-rain zones of the UK, which widens the choice of fill. Exposed elevations, coastal sites and high ground still get checked wall by wall.
In terms of approvals, if cavity wall insulation follows in South Croydon, 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 South Croydon
- Borescope at affected areas
- Cause and options in writing
- Moisture mapping inside
- External defects check
Guide prices for South Croydon
| Damp investigation after cavity insulation guide prices | Guide 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 South Croydon:
Tell us what is happening
Postcode, property type and what you have noticed.
Price agreed first
We confirm the price before anyone visits.
Visit and checks
Photos and readings at the areas that matter.
Findings in writing
What we found and the options, each priced separately.