Loft insulation in Gwynedd
Every loft service we offer is available across Gwynedd, with a free survey for installation work.
We work in Bangor (Gwynedd), Caernarfon, Dolgellau, Holyhead and Llangefni and everywhere in between.
Loft services in Gwynedd
Insulate the loft
- Loft insulation in Gwynedd From £495
- Loft insulation top-up in Gwynedd From £395
- Blown loft insulation in Gwynedd From £595
- Natural loft insulation in Gwynedd From £995
- Rafter insulation in Gwynedd From £1,645
- Room-in-roof insulation in Gwynedd From £3,995
Boarding, hatches and ladders
- Loft boarding in Gwynedd From £695
- Insulated loft hatches in Gwynedd From £245
- Loft ladder fitting in Gwynedd From £295
Remove and replace
Ventilation and frost protection
- Loft ventilation in Gwynedd From £245
- Loft condensation investigation in Gwynedd From £145
- Pipe and tank lagging in Gwynedd From £95
Surveys and funding checks
- Loft insulation survey in Gwynedd From £95
- Thermal imaging survey in Gwynedd From £165
- Loft insulation grants check in Gwynedd No charge
Homes and buildings
Where we work around Gwynedd
This takes in the Gwynedd and Isle of Anglesey council areas.
That covers the LL postcode areas.
| Councils | Gwynedd and Isle of Anglesey |
|---|---|
| Postcode areas | LL |
Loft insulation in other towns
Building regulations in Wales
Wales has its own Approved Document L under the Building Regulations 2010 as they apply in Wales. Insulating more than half of a loft counts as renovating a thermal element and must meet the Welsh energy standard. Insulation alone is not normally notified, but rafter insulation that is part of a conversion is building work that needs building control. We confirm the route for your address on the quote.
Funding in Wales
- Warm Homes Nest, run for the Welsh Government, offers free improvements to eligible low-income households.
- ECO4, the energy supplier scheme, runs until 31 December 2026 for eligible households.
- Check Nest's eligibility checker before agreeing to any funded offer.
Welsh Government: Warm Homes Nest
Rented homes
Privately rented homes in Wales fall under the same minimum energy efficiency rules as England: at least band E now, rising to band C for all tenancies in scope by 1 October 2030.
The Energy Saving Trust puts a typical professionally installed loft at about £750 from bare joists, or £600 to top up from 120 mm.
Questions about 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.
Can you quote for several properties in Gwynedd?
Yes. Landlords and agents can send a list of addresses and we will survey them in as few visits as we can.
Do you cover the whole of Gwynedd?
Yes. We cover every town and village in Gwynedd, including Bangor (Gwynedd), Caernarfon and Dolgellau.
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.
