Damp investigation after cavity insulation for Barnstaple properties
Barnstaple is among the towns we cover in Devon, alongside Bideford, Tiverton and Exeter. It is about 34 miles north-west of Exeter.
Damp in an insulated Barnstaple home is not always the insulation's fault, so the diagnosis comes before any extraction. If your Barnstaple installation has a guarantee, we check it first; the guarantee route may cover the work.
Wind-driven rain is the first thing the surveyor weighs up. Parts of Devon 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.
On compliance, if cavity wall insulation follows in Barnstaple, 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 Barnstaple
- Moisture mapping inside
- External defects check
- Borescope at affected areas
- Cause and options in writing
Guide prices for Barnstaple
| 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 Barnstaple:
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.