Existing insulation and guarantee check for Magherafelt properties
Magherafelt sits in County Londonderry, roughly 31 miles south-east of Derry. We work across the BT45 district, including nearby Limavady, Coleraine and Derry.
Where a Magherafelt wall shows cold patches or damp, the survey targets those areas first rather than sampling at random. Buyers and sellers in Magherafelt often book this check when a survey report or EPC raises questions about the walls.
Exposure matters for every cavity wall. 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.
On compliance, if cavity wall insulation follows in Magherafelt, inserting cavity wall insulation needs a building control application to the council before work starts.
Rules in Northern Ireland
Inserting cavity wall insulation needs a building control application to the council before work starts if insulation work follows.
Sources: Building Control NI: frequently asked questions; Belfast City Council: what are the building regulations.
Tracing a guarantee
Many cavity fills carry a 25-year guarantee from the Cavity Insulation Guarantee Agency (CIGA). CIGA can confirm whether a property is covered and can issue a duplicate guarantee for a fee; at the time of writing that fee is £60 including VAT, and proof of ownership is required.
What is included in Magherafelt
- Guidance on tracing a guarantee
- Short written report
- Borescope checks
- Visual check of walls and patched holes
Guide prices for Magherafelt
| Existing insulation and guarantee check guide prices | Guide price |
|---|---|
| Existing insulation and guarantee check | £145–£245 |
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 Magherafelt:
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.