Blown loft insulation in Gwynedd
Homes and buildings across Gwynedd can book blown loft insulation, starting with a free survey and a fixed written quote.
Towns we cover include Bangor (Gwynedd), Caernarfon, Dolgellau, Holyhead and Llangefni.
Where we work around Gwynedd
We work across the Gwynedd and Isle of Anglesey council areas.
That covers the LL postcode areas.
| Councils | Gwynedd and Isle of Anglesey |
|---|---|
| Postcode areas | LL |
| Towns listed | 7 |
What is blown loft insulation?
The machine stays outside or on the landing and the hose runs up to the loft. Depth markers fixed to the joists or trusses show the installed depth, and the fibre settles into corners that rolls would bridge. More about blown loft insulation.
- Hatch area finished with a retaining upstand
- Depth markers left in place
- Loose-fill mineral wool to the agreed depth
Why book with us in Gwynedd
Fixed written price
The price on the quote is the price you pay. It only changes if you change the job, or if we find something hidden, such as rot, and you agree the change in writing first.
We measure before we quote
Existing depth, joist spacing, wiring and the tank are checked, not guessed.
Clear contact details
Your quote says who to call with questions before, during and after the work.
Eaves kept clear
Insulation is held back from the eaves so the loft can still ventilate.
How much does blown loft insulation cost in Gwynedd?
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 Wales
Wales has its own Approved Document L. Insulation alone is not normally notified, but conversions need building control. How the rules work across the UK.
Questions about blown loft insulation in Gwynedd
How do I book a survey in Gwynedd?
Send the form or call us. We call back to agree a time and confirm it in writing.
Are your prices the same across Gwynedd?
Yes. Our guide prices are the same everywhere we work, and they include normal travel. Your fixed price depends on your loft, not your postcode.
Does blown insulation settle?
Mineral wool loose fill settles a little, which is allowed for in the depth we install. The depth markers let you check it later.
Is blown insulation better than rolls?
It performs about the same for the same depth. It is the faster and neater option in lofts that are awkward to work in, and rolls are better where you want boarding later.
