Cost Calculator
Find Your External Wall Insulation Cost in 60 Seconds
Use our free EWI cost calculator to get an instant per-m² estimate and a downloadable PDF quote. Compare EPS, Rockwool, or Kingspan insulation with your chosen finish (silicone, scratch, brick-effect or pebble dash). You’ll also receive energy-saving tips and grant guidance where available.
Over 21 Years of Experience
Why Choose EWI Specialists?
With 21+ years’ experience, our fully insured installers deliver external wall insulation and rendering that lasts – protecting brickwork, cutting heat loss and refreshing your façade. Tidy, on-time workmanship, clear pricing, and 4.9★ Google-rated service.
Our Services
External Insulation and Rendering Services
Keep scrolling to explore our services and learn about the cost of rendering a house. Use our cost calculator for an instant per-m² estimate and a downloadable quote – discover a greener, more cost-effective future for your property.
Rendering Outside Walls
Our experienced external rendering contractors skillfully render houses, delivering a stunning finish to your external house rendering needs.
External Wall Insulation
Our eco-friendly wall insulation systems are designed to provide high-quality external insulation, aiming to enhance thermal efficiency.
Our Work
Recent Insulation and Rendering Projects
At EWI Specialist, our dedication is not just to meet, but to surpass your expectations with our exceptional services. See our work yourself.
Our Partners
Local Family Business
We proudly offer a 10-year workmanship warranty on all our rendering and insulating services.
Do you need extra protection? We also offer a 10-year insurance-backed warranty for a small additional cost, giving you long-term comfort and peace of mind.
Key Benefits of External Wall Insulation
Why External Wall Insulation Is the Best Investment for Your Home
External wall insulation tackles the biggest sources of heat loss in solid-wall homes while upgrading your façade in one project. It wraps your property in a warm, weatherproof layer and finishes it with a durable render.
Lower bills - less heat loss
Warmer, drier rooms - cuts condensation
Protects brickwork - weatherproof layer
Boosts kerb appeal & value - modern, clean finish
Our Certification
Qualified Wall Insulation Installers
We continually hone our skills to deliver what we believe to be efficient, reliable, and high-quality insulation solutions, with the goal of meeting or even exceeding your expectations.
