Hertfordshire · England
Render and insulation in Harpenden
Render and insulation in Harpenden: guide prices online, then a free survey and fixed written quote.
- Free survey in AL5 and nearby
- Fixed written price before work starts
- Guide prices online
Free survey in Harpenden
Tell us about the property. We reply on working days.
Services
Services in Harpenden
External wall insulation
- External wall insulation in Harpenden
- EPS insulation in Harpenden
- Mineral wool EWI in Harpenden
- Wood fibre EWI in Harpenden
- Non-traditional houses in Harpenden
- Park home insulation in Harpenden
- Flats and blocks in Harpenden
- Commercial EWI in Harpenden
Solid and internal wall insulation
- Solid wall insulation in Harpenden
- Internal wall insulation in Harpenden
- Survey and quote in Harpenden
Render finishes
- Insulated render in Harpenden
- Silicone render in Harpenden
- Monocouche render in Harpenden
- Lime render in Harpenden
- Brick slip EWI in Harpenden
- Acrylic render in Harpenden
Re-rendering, repairs and upkeep
Homes and walls in Harpenden
As well as Harpenden itself, we quote in St Albans, Luton and Hemel Hempstead. Harpenden is about 11 miles from Watford.
The East of England has a mix of post-war estates, inter-war semis and older solid brick and flint cottages, with some system-built council homes on post-war estates.
Much of Hertfordshire 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
- AL5
- County or area
- Hertfordshire
- Nation
- England
Approvals in England
Planning in Harpenden 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.
Building control applies once more than half of a wall is insulated or re-rendered, or more than a quarter of the whole building envelope, and your written quote says how that's handled.
Typical jobs and guide prices
| Item | Guide price | Notes |
|---|---|---|
| Internal wall insulation | From £75 per m²0% VAT | Insulated plasterboard, supplied and skimmed |
| Re-rendering | From £90 per m² + scaffoldinc VAT | Strip and re-render (silicone system) |
| Mineral wool external wall insulation | From £125 per m² + scaffold0% VAT | Mineral wool + mineral or silicone render |
| Render cleaning and treatment | From £10 per m²inc VAT | Soft wash and biocide |
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
Harpenden: questions
Do you cover Harpenden?
Yes — we survey and quote in Harpenden (AL5) and nearby St Albans, Luton and Hemel Hempstead.
How much does external wall insulation cost in Harpenden?
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 Harpenden?
Planning in Harpenden 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.