Flats and blocks · Wiltshire
EWI for flats and blocks in Salisbury
From Salisbury to Andover, we price EWI for flats and blocks after a measured survey — no guesswork, and no work starts until the price is agreed in writing. On mixed-tenure blocks in Salisbury, we agree access and resident notices with the managing agent before scaffold goes up.
- Free survey in SP1 and nearby
- Guide price from £110 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Salisbury
Postcode, service and a phone number is all we need.
What the job covers
- Higher-risk buildings follow the Building Safety Regulator's process in England
- 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

Salisbury: walls, weather and approvals
As well as Salisbury itself, we quote in Andover, Totton and Southampton. Salisbury is about 34 miles from Swindon. The South West has many stone and solid-walled cottages, exposed coastal properties and a share of post-war system-built houses, including types such as the Cornish Unit.
Exposure to wind-driven rain varies across Wiltshire: 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 Salisbury, we start with height, storeys and the planning position, because those decide the system.
- Postcode district
- SP1
- County or area
- Wiltshire
- Nation
- England
- Nearby
- Andover, Totton, Southampton, Eastleigh
England: planning and regulations
For a house in Salisbury, external insulation or render is often permitted development if it looks similar to the existing walls; conservation areas, flats, commercial buildings and listed buildings need permission or consent, so we check your address first.
If the work covers more than half of a wall, or a quarter of the building's whole envelope, it counts as renovating a thermal element, with a target of about 0.30 W/m²K where feasible.
On residential buildings with a storey 11 metres or more above ground, guidance points to non-combustible external wall materials, and combustible materials are banned in relevant buildings 18 metres and over, so we specify mineral wool systems there.
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 Salisbury
| 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.
From enquiry to finished wall
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 Salisbury: 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 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 Salisbury?
Yes — we survey and quote EWI for flats and blocks in Salisbury (SP1) and nearby Andover, Totton and Southampton, with a fixed written price before any work starts.