Flats and blocks · Gwent
EWI for flats and blocks in Cwmbran
From Cwmbran to Pontypool, we price EWI for flats and blocks after a measured survey — no guesswork, and no work starts until the price is agreed in writing. For blocks in Cwmbran, we start with height, storeys and the planning position, because those decide the system.
- Free survey in NP44 and nearby
- Guide price from £110 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Cwmbran
Postcode, service and a phone number is all we need.
What you get
- Mineral wool systems where building height or guidance requires them
- We work with managing agents on resident communication
- Cavity barriers and fire-stopping detailed at compartment floors
- One programme and one finish across the whole building

What we look for in Cwmbran
We cover Cwmbran and nearby Pontypool, Risca and Newport (Gwent). Cwmbran is about 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.
On mixed-tenure blocks in Cwmbran, we agree access and resident notices with the managing agent before scaffold goes up.
- Postcode district
- NP44
- County or area
- Gwent
- Nation
- Wales
- Nearby
- Pontypool, Risca, Newport (Gwent), Caerphilly
Approvals in Wales
For homes in Cwmbran, 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 Cwmbran
| 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
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 Cwmbran: questions
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.
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 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 Cwmbran?
Yes — we survey and quote EWI for flats and blocks in Cwmbran (NP44) and nearby Pontypool, Risca and Newport (Gwent), with a fixed written price before any work starts.