Flats and blocks · Wales
EWI for flats and blocks in Clwyd
Planning EWI for flats and blocks anywhere in Clwyd? We cover towns including Wrexham and Buckley, and check planning and building control for each address. For blocks in Clwyd, we start with height, storeys and the planning position, because those decide the system.
- 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 Clwyd
Tell us the postcode and what you need.
Part of every quote
- We work with managing agents on resident communication
- Planning permission is needed for flats and maisonettes
- One programme and one finish across the whole building
- Cavity barriers and fire-stopping detailed at compartment floors
- Mineral wool systems where building height or guidance requires them
Before we quote in Clwyd
North Wales has many solid stone and slate-built homes, Victorian seaside terraces and post-war council estates.
Exposure to wind-driven rain varies across Clwyd: 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 Clwyd, we start with height, storeys and the planning position, because those decide the system.
- Nation
- Wales
- Region
- North Wales
- Towns covered
- Wrexham, Buckley, Colwyn Bay, Deeside, Flint, Rhyl, Hawarden, Rhosllanerchrugog…
- Guide price
- From £110 per m² + scaffold · 0% VAT
Permissions 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 Clwyd
| 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
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 Clwyd: 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.
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 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 cover all of Clwyd?
Yes. We survey and quote EWI for flats and blocks across Clwyd, including Wrexham, Buckley, Colwyn Bay, Deeside, Flint.
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.