Rafter insulation in Gwent
For rafter insulation anywhere in Gwent, you get a free survey and a fixed written quote.
We work in Newport (Gwent), Cwmbran, Pontypool, Ebbw Vale and Caerphilly and everywhere in between.

Where we work around Gwent
Council areas covered: Blaenau Gwent, Caerphilly, Monmouthshire, Newport and Torfaen.
Postcode areas: CF and NP.
| Councils | Blaenau Gwent, Caerphilly, Monmouthshire, Newport and Torfaen |
|---|---|
| Postcode areas | CF, NP |
| Towns listed | 12 |
What is rafter insulation?
Because the whole roof slope, the gables and the party walls now have to be insulated, this costs much more than insulating the floor and saves less heat for the money. We check the roof underlay first: a breathable membrane and a felt with no ventilation gap need different build-ups to avoid condensation. More about rafter insulation.
- Rigid insulation between the rafters, joints taped
- Vapour control layer where the design needs one
- Build-up designed for your type of roof underlay
Why book with us in Gwent
Clear contact details
Your quote says who to call with questions before, during and after the work.
No pressure selling
You get everything in writing and decide in your own time.
Plain-English advice
We explain what we find in plain English, and say so when nothing needs doing.
Tidy work
Dust sheets on the route in and every bit of packaging taken away.
How much does rafter insulation cost in Gwent?
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 rafter insulation in Gwent
Can you quote for several properties in Gwent?
Yes. Landlords and agents can send a list of addresses and we will survey them in as few visits as we can.
How do I book a survey in Gwent?
Send the form or call us. We call back to agree a time and confirm it in writing.
Will it cause condensation?
It can if the build-up is wrong for the roof. Old bitumen felt needs a ventilation gap behind the insulation; a modern breathable membrane may not. We check before we design it.
Can I use the loft as a bedroom after rafter insulation?
Insulation alone does not make a loft habitable. Fire escape, stairs, floor strength and headroom all come into a conversion, which needs building control.
