Loft insulation top-up in Lisburn
If you need a loft insulation top-up in Lisburn, we can help, and it starts with a free survey and a fixed written quote.
Jobs in BT27, BT28 and BT17 are all within our normal area, in the Lisburn and Castlereagh council area.
Where we work around Lisburn
As the crow flies, Lisburn is roughly 7 miles from Belfast.
We also cover Belfast and Newtownabbey.
| Postcode districts | BT27, BT28, BT17, BT10 |
|---|---|
| Council area | Lisburn and Castlereagh |
| County or area | County Antrim |
What is a loft insulation top-up?
Before we quote we measure the existing layer in several places and check its condition. If it is wet, dirty, matted or full of droppings, laying fresh wool on top just buries the problem, so we say so and price removal instead. More about a loft insulation top-up.
- Cross layer to a total of 270 to 300 mm
- Tank jacket and pipe lagging in the loft
- Gaps in the existing layer filled
Why book with us in Lisburn
Photos of the finished loft
You see the work done without climbing the ladder.
Plain-English advice
We explain what we find in plain English, and say so when nothing needs doing.
No pressure selling
You get everything in writing and decide in your own time.
Tidy work
Dust sheets on the route in and every bit of packaging taken away.
How much does a loft insulation top-up cost in Lisburn?
Installing insulation in a home is zero-rated for VAT until 31 March 2027 and 5% after that, under HMRC's rules for energy-saving materials (notice 708/6).
Building regulations in Northern Ireland
Northern Ireland has its own Building Regulations, with energy guidance in Technical Booklet F1. Upgrading loft insulation may count as a thermal alteration, so check with your council's building control. How the rules work across the UK.
Questions about a loft insulation top-up in Lisburn
Do you take on jobs outside Lisburn?
Yes. We also work in Belfast and Newtownabbey and elsewhere in County Antrim.
Do you cover all of BT27?
Yes, we cover the BT27 postcode district and the districts around Lisburn.
Is loft work in Lisburn different from anywhere else?
The method is the same, but older terraces, cottages and newer estates each have their own quirks: lath ceilings, low pitches or trussed roofs. We plan for the loft we find.
Can new insulation go on top of old insulation?
Yes, if the old layer is dry, clean and reasonably even. If it is damp, contaminated or badly compressed we recommend removing it first.
Which way should the top-up layer run?
Across the joists, at right angles to the first layer. That covers the tops of the joists, which otherwise let heat escape along the timber.
