Borescope cavity inspection across County Londonderry
We cover 4 towns in County Londonderry: Derry, Coleraine, Limavady and Magherafelt.
Every elevation is judged on its own exposure. Parts of County Londonderry 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.
The written result for your County Londonderry property is plain English: what we found, what it means and what, if anything, to do next. Buyers and sellers in County Londonderry often book this check when a survey report or EPC raises questions about the walls.
Building control in Northern Ireland
In Northern Ireland, inserting insulation into an existing cavity wall needs a building control application to your council before the work. We make sure the application route is agreed and confirmed in writing before any drilling starts.
Sources: Building Control NI: frequently asked questions; Belfast City Council: what are the building regulations.
When a borescope check helps
Before filling, to confirm the cavity is empty and clean. Before buying a house, to see if the EPC's claim of 'filled cavity' is true. When damp has appeared and you need to know whether the fill is wet or bridged. Before a top-up, to map which panels are empty.
What is included
- Inspection points on each elevation
- Photos of each point
- Fill type and condition noted
- Holes made good
- Written summary
Borescope cavity inspection prices in County Londonderry
| Borescope cavity inspection guide prices | Guide price |
|---|---|
| Borescope inspection, house | £145–£245 |
| Borescope inspection, block or large building | £295–£595 |
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.
What happens next for a County Londonderry property:
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.