Greater London · England
Render and insulation in Barnet
From pebble dash and failing render to full external wall insulation, we survey and quote homes and buildings in Barnet.
- Free survey in EN5 and nearby
- Fixed written price before work starts
- Guide prices online
Free survey in Barnet
Tell us about the property. We reply on working days.
Services
Services in Barnet
External wall insulation
- External wall insulation in Barnet
- EPS insulation in Barnet
- Mineral wool EWI in Barnet
- Wood fibre EWI in Barnet
- Non-traditional houses in Barnet
- Park home insulation in Barnet
- Flats and blocks in Barnet
- Commercial EWI in Barnet
Solid and internal wall insulation
Render finishes
- Insulated render in Barnet
- Silicone render in Barnet
- Monocouche render in Barnet
- Lime render in Barnet
- Brick slip EWI in Barnet
- Acrylic render in Barnet
Re-rendering, repairs and upkeep
Homes and walls in Barnet
We also cover Potters Bar and Borehamwood, close to Barnet.
London's housing includes a large stock of Victorian and Edwardian solid-wall terraces, inter-war semis and post-war blocks, and conservation areas cover many streets — so planning is often the first question for external work.
Much of Greater London 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.
- Postcode district
- EN5
- County or area
- Greater London
- Nation
- England
Approvals in England
Before quoting in Barnet, we check whether the property is in a conservation area, under an Article 4 direction or listed, because that decides whether changing the outside needs planning permission.
Insulating or re-rendering more than half of a wall's area brings in Part L of the Building Regulations, so building control is notified and the wall is upgraded to about 0.30 W/m²K where practical.
Typical jobs and guide prices
| Item | Guide price | Notes |
|---|---|---|
| Re-rendering | From £90 per m² + scaffoldinc VAT | Strip and re-render (silicone system) |
| Brick slip finish over insulation | From £185 per m² + scaffold0% VAT | Brick slip EWI |
| Silicone render | From £66 per m² + scaffoldinc VAT | Silicone render on masonry (with base coat + mesh) |
| Covering pebble dash | From £72 per m² + scaffoldinc VAT | Render over sound pebble dash |
Insulation prices for homes are totals (0% VAT until 31 March 2027); render and repair prices include VAT at 20%. Confirmed in writing after a free survey. Full price guide
Nearby towns
Barnet: questions
Do you cover Barnet?
Yes — we survey and quote in Barnet (EN5) and nearby Potters Bar, Borehamwood and Finchley.
How much does external wall insulation cost in Barnet?
Our guide is £105–£170 per m² depending on the system, plus scaffolding — roughly £10,200–£17,700 for a typical three-bed semi with EPS and silicone render. Installing insulation in a home is zero-rated for VAT until 31 March 2027, so that's the total. A free survey fixes the price.
Do I need planning permission in Barnet?
Planning in Barnet 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.
Is VAT charged on wall insulation?
Installing wall insulation in homes is zero-rated until 31 March 2027, then 5%, so our insulation prices are totals. Render-only work and repairs carry VAT at 20%, and our prices for them include it.