Internal wall insulation · Gwent
Internal wall insulation in Pontypool
Internal wall insulation in Pontypool: free survey, written specification and a fixed price, with the details that keep walls dry planned from the start. We plan internal insulation in Pontypool homes room by room so you keep the rest of the house usable.
- Free survey in NP4 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Pontypool
Postcode, service and a phone number is all we need.
What you get
- Keeps the outside of the house exactly as it is
- Sockets, radiators, skirting and coving are moved and refitted
- Can be done one room at a time during a renovation
- Insulated plasterboard, stud wall or breathable systems

Before we quote in Pontypool
Surveys in Pontypool also cover the surrounding NP4 district and towns such as Cwmbran and Risca. It's roughly 8 miles from Pontypool to Newport (Gwent), the largest town in Gwent. South Wales has long runs of solid-wall valley terraces, Victorian and Edwardian town housing and post-war council estates.
Exposure to wind-driven rain varies across Gwent: sheltered town streets fare better than walls on high ground or facing the prevailing weather, and the render, beads and cill details are chosen with that in mind.
Where a property in Pontypool is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Postcode district
- NP4
- County or area
- Gwent
- Nation
- Wales
- Nearby
- Cwmbran, Risca, Newport (Gwent), Abergavenny
Planning and building control in Wales
Planning isn't usually involved with internal insulation. Building control is, once more than half of a wall is treated, and listed buildings need listed building consent.
What are the options for internal insulation?
- Insulated plasterboard — PIR or phenolic foam bonded to plasterboard, fixed to the wall and skimmed. Thinnest option.
- Insulated stud wall — a timber or metal frame filled with insulation, with a vapour control layer and plasterboard. Takes more space but runs services easily.
- Wood fibre and lime — breathable boards finished in lime plaster, for older walls that need to manage moisture.
Internal wall insulation prices in Pontypool
| Item | Guide price | Notes |
|---|---|---|
| Insulated plasterboard, supplied and skimmed | £75–£110 per m²0% VAT | |
| Insulated stud wall | £90–£130 per m²0% VAT | |
| Typical bedroom, one external wall | £1,795–£2,9950% VAT | Including making good |
Confirmed by a fixed written quote after survey. 0% VAT: installing insulation in a home is zero-rated until 31 March 2027, so these figures are the total; 5% applies from 1 April 2027.
From enquiry to finished wall
Tell us about the property
Use the quote tool or form, or call. Photos help.
Free survey
We measure, check the walls and confirm approvals.
Fixed written quote
System, details, access, exclusions and VAT in writing.
Installation
Scheduled for suitable weather, with a clear programme.
Internal wall insulation in Pontypool: questions
What happens to my radiators and sockets?
They're taken off and refitted on the new wall face. Electrical work is done by a qualified electrician.
Can I stay in the house?
Yes, but each room is out of use while it's worked on, typically 3–5 days.
How much room space will I lose?
Usually 50–100mm on each insulated wall, depending on the system.
Do you cover Pontypool?
Yes — we survey and quote internal wall insulation in Pontypool (NP4) and nearby Cwmbran, Risca and Newport (Gwent), with a fixed written price before any work starts.