Flats and blocks · Gwent
EWI for flats and blocks in Risca
If you're planning EWI for flats and blocks in Risca, start with a free survey: we measure, check the walls and confirm planning and building control for your address. Freeholders and managing agents in Risca get a written specification and pricing they can share with owners.
- Free survey in NP11 and nearby
- Guide price from £110 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Risca
Postcode, service and a phone number is all we need.
Included as standard
- Planning permission is needed for flats and maisonettes
- We work with managing agents on resident communication
- Cavity barriers and fire-stopping detailed at compartment floors
- Mineral wool systems where building height or guidance requires them

Before we quote in Risca
As well as Risca itself, we quote in Newport (Gwent), Cwmbran and Caerphilly. Risca sits around 5 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.
For blocks in Risca, we start with height, storeys and the planning position, because those decide the system.
- Postcode district
- NP11
- County or area
- Gwent
- Nation
- Wales
- Nearby
- Newport (Gwent), Cwmbran, Caerphilly, Pontypool
Approvals in Wales
For homes in Risca, the local planning authority decides any borderline cases; changing a brick house to render, or work on flats, usually needs an application in Wales.
Welsh Building Regulations expect walls to be upgraded when a substantial area is renewed, and building control signs the work off.
Wales applies its own external wall fire rules, updated in 2025; on taller residential buildings we specify non-combustible mineral wool systems.
How disruptive is it for residents?
Most work happens from scaffolding outside. Residents may need to allow brief access to extend window cills, vents or flues from the inside. We provide a notice for residents covering dates, scaffold, and how to raise concerns.
EWI for flats and blocks prices in Risca
| 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.
What happens next
Get a guide price
Try the online quote tool for a ballpark figure.
Book the survey
A visit at a time that suits you.
Agree the quote
Nothing starts until you've signed the written price.
We do the work
Planned around weather, with you kept informed.
Flats and blocks in Risca: questions
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.
Who pays for EWI on a leasehold block?
In England and Wales, usually the leaseholders through the service charge, depending on the lease, and the landlord must follow the Section 20 consultation process for major works.
Do you cover Risca?
Yes — we survey and quote EWI for flats and blocks in Risca (NP11) and nearby Newport (Gwent), Cwmbran and Caerphilly, with a fixed written price before any work starts.