Our field and installation network covers Belfast, Lisburn, Newtownabbey, Bangor, Derry/Londonderry and beyond, with property assessment available according to postcode and project type.
Areas covered
Property assessment and installation are arranged by postcode across Northern Ireland. Major service areas:
Housing in Northern Ireland and what it means for insulation
Belfast's Victorian and Edwardian red-brick terraces and inter-war semis, post-war estates across the city and Craigavon, and a large rural stock of detached bungalows and farmhouses across the province. Bungalows are more common than in most of Great Britain, and Northern Ireland's Technical Booklets replace England's Approved Documents.
Common insulation projects in the region
- Rural bungalow roof-space conversions
- Belfast terrace loft conversions
- Inter-war semi loft rooms
- Loft floor upgrades in estate housing
- Condensation investigations in unventilated roofs
What we see across Northern Ireland
- Rural bungalow roof-space conversions
- Belfast terrace loft conversions
- Estate loft floor upgrades
- Condensation in unventilated roofs
Qualitative pattern from the housing stock; replaced with aggregated, anonymised enquiry data as it builds.
Rural bungalows and Technical Booklets
Bungalow roof-space conversions dominate outside Belfast; Northern Ireland's Technical Booklets, not England's Approved Documents, set the requirements, and the specification is written to them.
Why foil may suit some homes here
Bungalow roof spaces being converted are the most common multifoil enquiry in the province. The decision rests on the whole roof build-up — rafter depth, ventilation, moisture, existing insulation and intended use — not on material thickness alone. Foil insulation guide.
Why foil may not suit others
An unconverted rural bungalow loft with good access is a mineral-wool job. A straightforward cold loft with good access is often more appropriately upgraded with conventional mineral-wool loft insulation than a rafter-level foil system, and we say so when it is.
Field team
Northern Ireland Field Team
Supporting homeowners across Belfast, Lisburn, Newtownabbey, Bangor, Derry/Londonderry, Newry, Craigavon and surrounding areas with property assessment to one national standard.
How it works in Northern Ireland
- Enter your postcodeWe tell you the coverage position for the area before asking for anything else.
- Tell us about the propertyType, what you want to improve, what is there now, the main problem.
- Property assessmentWhere a physical inspection is needed: roof and loft construction, existing insulation, ventilation, moisture, depth, access.
- RecommendationFoil, multifoil or an alternative — chosen for the property, not the search term.
- QuoteFixed price with the build-up, product, certificate and inclusions stated.
- InstallationAllocated to appropriate installation capacity, photographed and recorded to one standard.
What foil insulation costs in Northern Ireland
We do not publish invented regional prices. What moves a quote here is the same as anywhere else:
- property size and roof area
- access to the loft or roof space
- what insulation is there now and whether it stays
- the system selected — multifoil alone, multifoil with PIR, or an alternative
- preparation work, including removal of old material or spray foam
- ventilation and detailing at eaves, dormers and penetrations
National indicative ranges are in the foil insulation cost guide; as genuine project data from Northern Ireland builds, regional ranges will be published here.
Recent foil insulation projects in Northern Ireland
Documented projects in Northern Ireland are added to the project library as they complete — property, survey findings, system chosen and why, duration and photographs. Until then the library's typical project scenarios show how the housing described above is assessed.
Professional installation
Installation is arranged through the national foil insulation installer page: survey first, written build-up, fixed quote, one standard. How installers are matched.