Commercial EWI · Northamptonshire
Commercial and public building EWI in Daventry
We quote commercial external wall insulation for homes in Daventry (NN11) and nearby Rugby and Northampton, with guide prices online and a free survey to fix the price. We provide drawings and finish samples for planning applications on Daventry commercial buildings.
- Free survey in NN11 and nearby
- Guide price from £110 per m² + scaffold, + VAT
- Fixed written price before work starts
Free survey in Daventry
Postcode, service and a phone number is all we need.
What you get
- Contract roles under CDM 2015 agreed at the start
- Clear handover file with system documentation
- Non-combustible systems where use or height requires them
- Planning applications supported with drawings and finish samples

What we look for in Daventry
As well as Daventry itself, we quote in Rugby, Northampton and Leamington Spa. Daventry is about 12 miles from Northampton. Housing in the East Midlands includes Victorian terraces in the towns and cities, plenty of inter-war semis and post-war council estates, some of them system-built.
Much of Northamptonshire sits in the lower wind-driven rain exposure bands, which keeps the choice of finishes wide — though hilltop, coastal and exposed gable walls can still need a tougher specification, so we check the actual site.
For commercial premises in Daventry, we programme the work around opening hours so the building can keep trading.
- Postcode district
- NN11
- County or area
- Northamptonshire
- Nation
- England
- Nearby
- Rugby, Northampton, Leamington Spa, Banbury
Permissions in England
Planning in Daventry follows England's national rules: similar-looking finishes on houses are usually permitted, while flats, commercial premises, conservation areas and streets under an Article 4 direction need an application.
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.
Which system suits a commercial building?
The building's height, use (for example, residential or assembly use) and fire strategy shape the choice. Mineral wool systems are typical for multi-storey and public buildings; EPS may suit single-storey units. The system manufacturer's classification is confirmed in writing.
Commercial and public building EWI prices in Daventry
| Item | Guide price | Notes |
|---|---|---|
| Insulated render system | £110–£200 per m²+ VAT | Priced on survey |
| Render refurbishment without insulation | £55–£95 per m²+ VAT | Silicone or mineral |
| Access and scaffold | Per building | Includes edge protection |
Confirmed by a fixed written quote after survey. Business prices shown before VAT, which is added at 20%. Buildings used solely for a relevant charitable purpose can qualify for 0% on insulation.
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.
Commercial EWI in Daventry: questions
Do you handle the planning application?
We provide the technical information, drawings and samples an application needs; your agent or our designer can submit it.
Do you provide a maintenance plan?
Yes — the handover includes the system documents and recommended inspection and cleaning intervals.
Can the building stay open during the works?
Usually, yes. The work is phased and the scaffold layout keeps entrances and escape routes clear.
Do you cover Daventry?
Yes — we survey and quote commercial external wall insulation in Daventry (NN11) and nearby Rugby, Northampton and Leamington Spa, with a fixed written price before any work starts.