Hertfordshire · England
Render and insulation in Welwyn Garden City
From pebble dash and failing render to full external wall insulation, we survey and quote homes and buildings in Welwyn Garden City.
- Free survey in AL8 and nearby
- Fixed written price before work starts
- Guide prices online
Free survey in Welwyn Garden City
Tell us about the property. We reply on working days.
Services
Services in Welwyn Garden City
External wall insulation
- External wall insulation in Welwyn Garden City
- EPS insulation in Welwyn Garden City
- Mineral wool EWI in Welwyn Garden City
- Wood fibre EWI in Welwyn Garden City
- Non-traditional houses in Welwyn Garden City
- Park home insulation in Welwyn Garden City
- Flats and blocks in Welwyn Garden City
- Commercial EWI in Welwyn Garden City
Solid and internal wall insulation
- Solid wall insulation in Welwyn Garden City
- Internal wall insulation in Welwyn Garden City
- Survey and quote in Welwyn Garden City
Render finishes
- Insulated render in Welwyn Garden City
- Silicone render in Welwyn Garden City
- Monocouche render in Welwyn Garden City
- Lime render in Welwyn Garden City
- Brick slip EWI in Welwyn Garden City
- Acrylic render in Welwyn Garden City
Re-rendering, repairs and upkeep
Homes and walls in Welwyn Garden City
Surveys in Welwyn Garden City also cover the surrounding AL8 district and towns such as Hatfield and Hertford. Welwyn Garden City is about 13 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
- AL8
- County or area
- Hertfordshire
- Nation
- England
Approvals in England
For a house in Welwyn Garden City, 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.
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 |
|---|---|---|
| Monocouche render | From £54 per m² + scaffoldinc VAT | Monocouche on blockwork |
| 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) |
| External wall insulation | From £105 per m² + scaffold0% VAT | EPS system with silicone render |
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
Welwyn Garden City: questions
Do you cover Welwyn Garden City?
Yes — we survey and quote in Welwyn Garden City (AL8) and nearby Hatfield, Hertford and St Albans.
How much does external wall insulation cost in Welwyn Garden City?
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 Welwyn Garden City?
Before quoting in Welwyn Garden City, 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.
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.