Loft and cavity wall insulation · Northern Ireland
Loft and cavity wall insulation in Northern Ireland
Loft top-ups and cavity fill are the cheapest fabric measures for most homes in Northern Ireland, provided the survey comes first.
We take on loft and cavity wall insulation for social landlords across Northern Ireland: the Housing Executive, housing associations and supported housing providers in all 11 council areas, to the rules that apply in Northern Ireland.
Where in Northern Ireland do we carry out loft and cavity wall insulation?
We cover every council area in Northern Ireland. Choose one to see who owns the social homes there and the local guide price.
- Antrim and Newtownabbey
- Ards and North Down
- Armagh City, Banbridge and Craigavon
- Belfast
- Causeway Coast and Glens
- Derry City and Strabane
- Fermanagh and Omagh
- Lisburn and Castlereagh
- Mid Ulster
- Mid and East Antrim
- Newry, Mourne and Down
What is included?
- Cavity wall insulation injection
- Extraction of failed or unsuitable cavity fill
- Boarded walkways, hatch insulation and draught-proofing
- Loft ventilation checks and remedial vents
- Pipe and tank insulation
Which rules apply in Northern Ireland?
Retrofit funding in Northern Ireland is set by the Department for Communities and the Housing Executive's own programmes.
What does it cost in Northern Ireland?
Our guide range for cavity wall insulation in Northern Ireland is £850–£2,450 per home. That is the UK range of £950–£2,700 (published figure) adjusted by a regional cost factor of 0.90 (our own estimate); figures are before VAT where the source states it. Every job is priced after survey; specification, access and the condition of the homes will move the figure.
How do we deliver it?
Where we extract failed fill, we inspect the wall ties and the cavity while it is open and report what we find.
Common questions
Which council areas in Northern Ireland do you cover for loft and cavity wall insulation?
All 11: Antrim and Newtownabbey, Ards and North Down, Armagh City, Banbridge and Craigavon, Belfast, Causeway Coast and Glens, Derry City and Strabane, Fermanagh and Omagh, Lisburn and Castlereagh, Mid Ulster, Mid and East Antrim, Newry, Mourne and Down.
Is every cavity wall suitable for fill?
No. Exposure to driving rain, narrow or obstructed cavities and poor wall condition can make fill unsuitable. That is why we survey first.
Will loft insulation cause condensation?
Not if the loft remains ventilated. We check eaves and ridge ventilation before laying insulation.