Greater London · England
Render and insulation in Harrow
From pebble dash and failing render to full external wall insulation, we survey and quote homes and buildings in Harrow.
- Free survey in HA2 and nearby
- Fixed written price before work starts
- Guide prices online
Free survey in Harrow
Tell us about the property. We reply on working days.
Services
Services in Harrow
External wall insulation
- External wall insulation in Harrow
- EPS insulation in Harrow
- Mineral wool EWI in Harrow
- Wood fibre EWI in Harrow
- Non-traditional houses in Harrow
- Park home insulation in Harrow
- Flats and blocks in Harrow
- Commercial EWI in Harrow
Solid and internal wall insulation
Render finishes
- Insulated render in Harrow
- Silicone render in Harrow
- Monocouche render in Harrow
- Lime render in Harrow
- Brick slip EWI in Harrow
- Acrylic render in Harrow
Re-rendering, repairs and upkeep
Homes and walls in Harrow
As well as Harrow itself, we quote in Wembley, Northolt and Greenford.
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
- HA2
- County or area
- Greater London
- Nation
- England
Approvals in England
For a house in Harrow, 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.
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 |
|---|---|---|
| Mineral wool external wall insulation | From £125 per m² + scaffold0% VAT | Mineral wool + mineral or silicone render |
| Park home insulation | From £7,9950% VAT | Single-unit park home |
| Render cleaning and treatment | From £10 per m²inc VAT | Soft wash and biocide |
| Render repairs | From £475inc VAT | Small repairs, single visit |
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
Harrow: questions
Do you cover Harrow?
Yes — we survey and quote in Harrow (HA2) and nearby Wembley, Northolt and Greenford.
How much does external wall insulation cost in Harrow?
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 Harrow?
Planning in Harrow 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.