Local EWI & Rendering Installers
External Wall Insulation in Hemel Hempstead
Insured, TrustMark-registered installers of external wall insulation and silicone render, working across Hemel Hempstead, Berkhamsted, Kings Langley, Apsley and Tring. Clear pricing, tidy workmanship and a guarantee of up to 25 years.
Why Hemel Hempstead homes benefit from external wall insulation
As a post-war new town, Hemel Hempstead is full of 1950s and 1960s houses in Adeyfield, Bennetts End, Highfield and Gadebridge – many built with solid or system walls that were never insulated. Add the older Victorian stock around Boxmoor and the Old Town, and a large share of local homes lose far more heat than they should.
An insulated render system wraps the outside of the house in EPS, Rockwool or Kingspan boards and finishes it with a durable silicone, scratch, brick-effect or pebble dash render. The result: warmer rooms, lower bills, protected brickwork and a fresh, modern façade – without losing any interior space.
Our Work Near You
Recent projects near Hemel Hempstead
How much does external wall insulation cost in Hemel Hempstead?
As a guide, our insulated render systems start from £120/m² for EPS, £140/m² for Rockwool and £135/m² for Kingspan, including the render finish. A typical three-bed semi with around 100 m² of external wall usually comes to roughly £12,000–£14,000 depending on the material, access and detailing. Every quote is free, written and itemised – try our cost calculator or book a free survey.
Hemel Hempstead EWI questions, answered
Do I need planning permission for external wall insulation in Hemel Hempstead?
In most cases no – EWI usually falls under permitted development. Where consent is needed, the local authority is Dacorum Borough Council. The Old Town includes conservation areas, so we always check before we start – it’s included in the free survey.
How long does an EWI installation take?
A typical semi takes 5–10 working days including scaffolding, boarding, rendering and finishing. We protect driveways and gardens and tidy the site every day.
Which areas around Hemel Hempstead do you cover?
We cover Adeyfield, Bennetts End, Highfield, Gadebridge, Boxmoor and the Old Town, plus Berkhamsted, Kings Langley, Apsley, Bovingdon and Tring.
What guarantee do I get?
Every installation comes with a written workmanship warranty, with insurance-backed cover of up to 25 years available for complete peace of mind.
Get your free Hemel Hempstead quote
Tell us about your property and we’ll come back the same working day. Or call 020 4542 3074.