Flats and blocks · Gwent
EWI for flats and blocks in Newport (Gwent)
Need EWI for flats and blocks in Newport (Gwent)? Tell us about the property and we'll arrange a free survey and a written quote. For blocks in Newport (Gwent), we start with height, storeys and the planning position, because those decide the system.
- Free survey in NP20 and nearby
- Guide price from £110 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Newport (Gwent)
Postcode, service and a phone number is all we need.
What you get
- Cavity barriers and fire-stopping detailed at compartment floors
- One programme and one finish across the whole building
- Planning permission is needed for flats and maisonettes
- Mineral wool systems where building height or guidance requires them

Homes and walls in Newport (Gwent)
As well as Newport (Gwent) itself, we quote in Risca, Cwmbran and Pontypool. 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.
Freeholders and managing agents in Newport (Gwent) get a written specification and pricing they can share with owners.
- Postcode district
- NP20
- County or area
- Gwent
- Nation
- Wales
- Nearby
- Risca, Cwmbran, Pontypool, Caerphilly
Wales: planning and regulations
We check Newport (Gwent) addresses for conservation areas and listing before quoting, because Welsh permitted development rules don't cover every external change.
In Wales, insulating or re-rendering more than half of a wall's area is treated as renovating a thermal element under Approved Document L (Wales), so building control is involved before work starts.
Wales applies its own external wall fire rules, updated in 2025; on taller residential buildings we specify non-combustible mineral wool systems.
Who needs to agree to EWI on a block?
The freeholder or management company commissions the work, but leaseholders usually pay through the service charge. In England and Wales, major works above the statutory threshold trigger the Section 20 consultation process before a contract is placed. We provide the specification and pricing you need for that consultation.
EWI for flats and blocks prices in Newport (Gwent)
| Item | Guide price | Notes |
|---|---|---|
| Mineral wool system on a low-rise block | £110–£190 per m²0% VAT | Priced on survey |
| Scaffold and access | Priced per building | Includes licences where needed |
| Specification and pricing pack for consultation | Included with quote |
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.
Flats and blocks in Newport (Gwent): questions
Can one flat have external wall insulation on its own?
Rarely. The outside walls are usually owned by the freeholder, the result would look patchy, and planning is unlikely. Whole-building schemes are the norm.
Do flats need planning permission for EWI?
Yes. Permitted development rights for external alterations apply to houses, not flats or maisonettes, so an application is needed.
Do you work on high-rise buildings?
Tell us the height and number of storeys. Buildings in the higher-risk category have a separate regulatory route, and we'll say plainly if we're not the right contractor.
Do you cover Newport (Gwent)?
Yes — we survey and quote EWI for flats and blocks in Newport (Gwent, NP20) and nearby Risca, Cwmbran and Pontypool, with a fixed written price before any work starts.