Room-in-roof insulation in Gwynedd
We provide room-in-roof insulation across Gwynedd, with a free survey and a fixed written quote.
That includes Bangor (Gwynedd), Caernarfon, Dolgellau, Holyhead and Llangefni, and the villages around them.
Where we work around Gwynedd
Council areas covered: Gwynedd and Isle of Anglesey.
Postcodes starting LL are all inside our area.
| Councils | Gwynedd and Isle of Anglesey |
|---|---|
| Postcode areas | LL |
| Towns listed | 7 |
What is room-in-roof insulation?
Most rooms-in-roof are reached by stripping the existing plasterboard on the slopes, fitting insulation between and over the rafters, and re-boarding. Dormer cheeks and roofs are included where they can be reached. More about room-in-roof insulation.
- Eaves voids insulated where accessible
- Insulation to slopes, knee walls and flat ceiling
- Boarding and finishing as agreed on the quote
Why book with us in Gwynedd
No pressure selling
You get everything in writing and decide in your own time.
Photos of the finished loft
You see the work done without climbing the ladder.
Clear contact details
Your quote says who to call with questions before, during and after the work.
Tidy work
Dust sheets on the route in and every bit of packaging taken away.
How much does room-in-roof insulation cost in Gwynedd?
Part of this work can be zero-rated as energy-saving materials until 31 March 2027, and part is standard-rated. If VAT applies, your quote shows which is which.
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 room-in-roof insulation in Gwynedd
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.
Which council covers my address in Gwynedd?
Councils in Gwynedd include Gwynedd and Isle of Anglesey. Your council matters for building control questions and some funding schemes.
Can it be done without removing the plasterboard?
Sometimes the flat ceiling and eaves voids can be reached from behind. The slopes almost always need the boards off to insulate them properly.
Will the room get smaller?
Slightly. Insulated plasterboard over the rafters takes a few centimetres off each slope.
