Underfloor insulation for Lisburn properties
We cover Lisburn and the BT28 postcode district, including nearby Belfast, Newtownabbey and Carrickfergus. It is roughly 7 miles south-west of Belfast.
Small measures like this are often among the cheapest per pound saved, and they suit Lisburn homes of every age. We check ventilation as carefully as insulation in Lisburn homes, because both matter for keeping a house dry.
For regulations, if cavity wall insulation follows in Lisburn, inserting cavity wall insulation needs a building control application to the council before work starts.
Funding in Northern Ireland
In Northern Ireland, the Affordable Warmth Scheme helps eligible households with a gross income under £23,000.
Sources: NI Housing Executive: Affordable Warmth Scheme; Utility Regulator: NI Sustainable Energy Programme.
Keeping the void ventilated
Air bricks under a suspended floor must stay clear so the timbers stay dry. Insulation goes between the joists, not across the void, and gaps at skirtings are sealed to stop draughts.
What is included in Lisburn
- Draught sealing at skirtings
- Insulation between joists
- Floor void inspection
- Boards relaid
Guide prices for Lisburn
| Underfloor insulation guide prices | Guide price |
|---|---|
| Suspended timber floor, typical room | £795–£1,495 |
| Whole ground floor | £1,995–£3,995 |
No VAT is charged on installing insulation in homes until 31 March 2027 (then 5%). 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 Lisburn:
Tell us about the property
Postcode, property type and what you would like done.
Free survey
Access, condition, existing insulation and ventilation checked.
Written result and price
What we recommend and a fixed price before any work.
Work and tidy-up
Fitted at an agreed time, with ventilation kept clear.