Internal wall insulation · Gwent
Internal wall insulation in Ebbw Vale
Quotes for internal wall insulation in Ebbw Vale list the system, the detailing and the VAT position in writing, so you know exactly what's included. Where a property in Ebbw Vale is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Free survey in NP23 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Ebbw Vale
Postcode, service and a phone number is all we need.
What you get
- Keeps the outside of the house exactly as it is
- Needs careful detailing at floor joists, reveals and corners
- Can be done one room at a time during a renovation
- Loses roughly 50–100mm per insulated wall

What we look for in Ebbw Vale
We cover Ebbw Vale and nearby Merthyr Tydfil, Pontypool and Abergavenny. It's roughly 16 miles from Ebbw Vale 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.
We plan internal insulation in Ebbw Vale homes room by room so you keep the rest of the house usable.
- Postcode district
- NP23
- County or area
- Gwent
- Nation
- Wales
- Nearby
- Merthyr Tydfil, Pontypool, Abergavenny, Aberdare
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 risks with internal insulation?
Insulating inside makes the masonry colder, so moisture risk rises. Weak points are where floor joists bear into the wall, window reveals and corners. A condensation risk check for the build-up, a continuous vapour control layer where specified, and returning insulation into reveals deal with most of it.
Internal wall insulation prices in Ebbw Vale
| 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.
What happens next
Enquiry
Send your postcode and a few details.
Measured survey
Walls, damp, eaves, cills and services recorded.
Written price
A fixed price with the specification attached.
Work and handover
Installed, inspected and documents handed over.
Internal wall insulation in Ebbw Vale: questions
Is internal insulation cheaper than external?
Per m² usually yes, but the cost of moving fittings and redecorating narrows the gap on whole-house jobs.
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.
Do you cover Ebbw Vale?
Yes — we survey and quote internal wall insulation in Ebbw Vale (NP23) and nearby Merthyr Tydfil, Pontypool and Abergavenny, with a fixed written price before any work starts.