Mineral wool EWI · Gwent
Mineral wool external wall insulation in Ebbw Vale
We quote mineral wool external wall insulation for homes in Ebbw Vale (NP23) and nearby Merthyr Tydfil and Pontypool, with guide prices online and a free survey to fix the price. On blocks and taller buildings in Ebbw Vale, mineral wool is the default because of the fire guidance for external walls.
- Free survey in NP23 and nearby
- Guide price from £125 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Ebbw Vale
Postcode, service and a phone number is all we need.
Part of every quote
- Non-combustible board (typically Euroclass A1 or A2-s1,d0 as part of the system)
- Used on blocks of flats and buildings with storeys above 11m
- Better sound reduction than foam boards
- Heavier than EPS, so more fixings and careful handling
Before we quote in Ebbw Vale
As well as Ebbw Vale itself, we quote in Merthyr Tydfil, Pontypool and Abergavenny. Ebbw Vale is about 16 miles from Newport (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.
Older solid-walled homes in Ebbw Vale can suit a vapour-open mineral wool build-up better than foam; the survey checks the wall first.
- Postcode district
- NP23
- County or area
- Gwent
- Nation
- Wales
- Nearby
- Merthyr Tydfil, Pontypool, Abergavenny, Aberdare
Permissions in Wales
For homes in Ebbw Vale, the local planning authority decides any borderline cases; changing a brick house to render, or work on flats, usually needs an application in Wales.
Building control in Wales applies to most insulation and re-rendering jobs of this size; the quote states who submits the notice.
Wales applies its own external wall fire rules, updated in 2025; on taller residential buildings we specify non-combustible mineral wool systems.
Why choose mineral wool over EPS?
Two reasons come up most: fire and moisture. Mineral wool doesn't burn, which is why guidance for taller residential buildings points to non-combustible external wall materials. It is also vapour-open, so a solid wall that holds some moisture can keep drying outwards through the insulation and render.
The trade-offs are weight and cost. Slabs are denser, need more fixings and take longer to install, so the price per m² is higher than EPS.
Mineral wool external wall insulation prices in Ebbw Vale
| Item | Guide price | Notes |
|---|---|---|
| Mineral wool + mineral or silicone render | £125–£170 per m²0% VAT | Excluding scaffold |
| Mineral wool + brick slip | £195–£260 per m²0% VAT | Heavier slip systems need extra fixings |
| Three-bed semi, full house | £11,800–£20,2000% VAT | 80–100 m² of wall, including scaffold |
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.
How it works
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.
Mineral wool EWI in Ebbw Vale: questions
Does mineral wool get wet?
It is water-repellent and protected by the render system. Like any insulation it must not be left exposed to rain during installation, so boards are covered and work stops in wet weather.
Is mineral wool needed for a bungalow?
Rarely for fire reasons. It may still be chosen on a damp-prone solid wall where a vapour-open build-up is wanted.
Is mineral wool better than EPS?
Not always better — different. Mineral wool wins on fire performance, breathability and acoustics; EPS wins on cost, weight and thinner boards for the same U-value. The wall, the building height and your priorities decide it.
Do you cover Ebbw Vale?
Yes — we survey and quote mineral wool external wall insulation in Ebbw Vale (NP23) and nearby Merthyr Tydfil, Pontypool and Abergavenny, with a fixed written price before any work starts.