Flats and blocks · Wales
EWI for flats and blocks in Gwent
Get guide prices online, then a free survey and fixed quote for EWI for flats and blocks in Gwent, including Cwmbran and Pontypool. Freeholders and managing agents in Gwent get a written specification and pricing they can share with owners.
- Free survey and fixed written price
- Guide price from £110 per m² + scaffold, 0% VAT
- Planning and building control checked for Wales
Free survey in Gwent
Tell us the postcode and what you need.
What's included
- Mineral wool systems where building height or guidance requires them
- Cavity barriers and fire-stopping detailed at compartment floors
- Planning permission is needed for flats and maisonettes
- One programme and one finish across the whole building
- We work with managing agents on resident communication
What we look for 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.
For blocks in Gwent, we start with height, storeys and the planning position, because those decide the system.
- Nation
- Wales
- Region
- South Wales
- Towns covered
- Newport (Gwent), Cwmbran, Pontypool, Ebbw Vale, Caerphilly, Risca, Abergavenny, Monmouth
- Guide price
- From £110 per m² + scaffold · 0% VAT
Planning and building control in Wales
Permitted development rules for houses in Wales are similar to England's: a similar-appearance finish on a house is often permitted, while conservation areas, National Parks, Areas of Outstanding Natural Beauty, flats, commercial buildings and listed buildings need permission or consent. Your local planning authority has the final word.
The Building Regulations as they apply in Wales treat insulating or re-rendering more than half of a wall's area, or more than a quarter of the building's whole envelope, as renovating a thermal element, with Approved Document L (Wales) setting the target. Building control is involved before work starts.
Wales applies its own amended fire rules for external walls, including the combustible materials ban for relevant buildings and guidance for residential buildings between 11 and 18 metres, updated by the Building (Amendment) (Wales) Regulations 2025.
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 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
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.
Flats and blocks in 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 all of Gwent?
Yes. We survey and quote EWI for flats and blocks across Gwent, including Newport (Gwent), Cwmbran, Pontypool, Ebbw Vale, Caerphilly.
Do I need planning permission in Wales?
Permitted development rules for houses in Wales are similar to England's: a similar-appearance finish on a house is often permitted, while conservation areas, National Parks, Areas of Outstanding Natural Beauty, flats, commercial buildings and listed buildings need permission or consent. We check your address before quoting.