We recently completed an External Wall Insulation in London. The owner of this London property wanted to fix the comfort issues without losing the character of their home. By choosing an External Wall Insulation (EWI) system, we were able to wrap the entire building in a thermal “jacket,” slashing their energy bills and giving the property a stunning, modern, fresh start.
External Wall Insulation in London
Before & After
The home was a classic mid-century build that had started to show its age. It was losing heat rapidly through the walls, making the interior feel chilly in the winter and hard to manage. Our goal was simple: make the home feel brand new inside while giving the exterior a clean, sophisticated upgrade.

We went for a beautiful Ivory silicone render. It’s a timeless, crisp finish that has completely lifted the look of the street and, more importantly, provides a breathable, waterproof shield that will protect the home from the damp London weather for years to come.
The Project Details
We find that our clients often want to see exactly what went into the transformation, so here is the breakdown of the system we used:
| Feature | Specification | Why it matters |
| System | External Wall Insulation (EWI) | Creates a continuous thermal barrier. |
| Insulation | 90mm EPS Boards | Blocks heat loss and stops cold spots. |
| Finish | 1.5mm Silicone Render | Breathable, flexible, and crack-resistant. |
| Colour | Ivory | A clean, modern, and timeless aesthetic. |
| Core Benefit | Energy Security | Keeps your home warm, dry, and efficient. |
Why London Homeowners are choosing EWI
By choosing EWI, this homeowner has essentially “future-proofed” their property against rising energy costs.
Because we don’t just render walls – we follow the strict PAS2030 and PAS2035 retrofit standards – this work isn’t just cosmetic. It is a genuine structural upgrade. When you invest in an EWI Specialist installation, you get our Triple Guarantee (System, Workmanship, and Insured Guarantee), giving you total peace of mind that your home is in the safest possible hands.

Thinking of upgrading your home?
Whether you’re tired of high energy bills, dealing with persistent damp, or simply want to boost your property’s kerb appeal, we’d love to have a chat about what’s possible for your home.
Get Your Free, No-Obligation Quote – Let our team design a bespoke solution for you.
Use Our Online EWI Cost Calculator – See how much you could transform your home for in seconds.
Call Us Directly – Have a question? We’re always happy to help.


