Warmer homes. Lower bills.
Lasting results.

Upgrade your property with high-performance External Wall Insulation (EWI) — improving comfort, cutting heat loss, and transforming your home’s exterior.

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Older or solid-wall homes can lose twice as much heat as modern cavity-wall properties.

Our External Wall Insulation (EWI) systems solve that problem by fixing a layer of high-performance insulation to your exterior walls, finished with a durable, decorative render.

This creates a continuous thermal barrier that keeps warmth in, reduces noise, and gives your home a clean, modern look — all without disturbing your interior.

See all our rendering services ->

Interior of a building under construction with black insulation panels and blue plastic-covered windows.

Benefits of EWI

  • Reduce heat loss and lower energy bills

  • Improve comfort and soundproofing

  • Protect walls from damp, cracking, and weather damage

  • Add value and fresh kerb appeal

  • Installed with minimal disruption

  • Works with a range of decorative render finishes

External Wall Insulation across Kent & South East London

We install external wall insulation systems on properties throughout Kent and South East London.

Our projects span Maidstone, Medway, Tonbridge, Sevenoaks, Dartford, Gravesend, Canterbury and Ashford, as well as South East London boroughs including Bromley, Bexley, Greenwich and Lewisham.

Whether you have a Victorian terrace or a 1960s semi, we carry out a free site survey and recommend the most appropriate EWI system for your property type and budget.

All of our EWI installations are finished with a decorative render topcoat.

Learn more about our silicone render and basecoat systems.

Interior of a building under construction with black insulation boards, two small windows covered with plastic, a steel scaffold, and orange sealing around the windows.

How we work

Preparation & Scaffolding
Safe access and full site protection.

Surface Treatment
Clean, repair, and stabilise the substrate.

Fixing Insulation
High-performance boards adhered and mechanically fixed.

Reinforcing Layer
Basecoat and fibreglass mesh applied for strength.

Topcoat Render
Silicone or mineral finish for colour and weatherproofing.

Finishing Touches
Sealing, detailing, and clean-down for a perfect result.

Ready to make your home warmer and more efficient?

Fill in the form or speak to our friendly team for advice or a free, no-obligation quote.