Damp investigation after cavity insulation for Bexley properties
If your property is in Bexley or the DA5 district or nearby Welling, Eltham and Thamesmead, it is within our Greater London coverage. It is around 12 miles east of London.
We never cold-call in Bexley or anywhere else, and we do not work with doorstep claims companies. Where a Bexley 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.
Wind-driven rain is the first thing the surveyor weighs up. 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.
On the rules side, if cavity wall insulation follows in Bexley, 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 Bexley
- Cause and options in writing
- Borescope at affected areas
- Moisture mapping inside
- External defects check
Guide prices for Bexley
| 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.
From enquiry to finish in Bexley:
Get in touch
Online, by phone or WhatsApp.
Your price
Confirmed in writing before you book.
The visit
Carried out at an agreed time, with photos of what we find.
Your report
Plain English, with any follow-on work quoted separately.