Exterior Solid Wall Insulation Company

External Wall Insulation Specialist

Looking for reliable external rendering contractors? EWI Specialist is your top choice for local external house rendering insulation. We provide fully insured services at competitive rates, and we’re proud of our positive customer feedback.


Lower Your Energy Bills


Add Value To Your House


Improve Thermal Comfort

66 Local External Wall Rendering Specialist

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External Insulation and Render

Invest in high-quality exterior insulation render for potential energy savings, reduced condensation, and enhanced curb appeal. Our selection of external render options promises a more eco-friendly, visually striking home.

Keep scrolling to explore our services and learn about the cost of rendering a house. Discover a greener, cost-effective future for your building.

Rendering Outside Walls

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Our experienced external rendering contractors skillfully render houses, delivering a stunning finish to your external house rendering needs. Offering a variety of external render options, we specialise in rendering on painted exterior walls and rendering external insulation. Trust us for enhanced aesthetic appeal and external render solutions.

External Solid Wall Insulation

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As your expert external wall insulation contractor, we specialise in exterior solid wall insulation. Our eco-friendly wall insulation systems are designed to provide high-quality external insulation, aiming to enhance thermal efficiency. Trust our expert services for your solid wall external wall insulation needs, ensuring comfort and energy savings.

Our Work

Recent Projects

At EWI Specialist, our dedication is not just to meet, but to surpass your expectations with our exceptional services. Don’t just take our word for it – see our work yourself.


Our Partners

We understand that investing in your property can be both exciting and, sometimes, a bit nerve-wracking. We believe that your peace of mind is paramount and that you should feel secure and reassured at every step of the process.

We proudly offer a comprehensive 10-year warranty on all our rendering and insulating services.

Do you feel like you need more protection? We offer a 25-year insurance-backed warranty for an additional cost, assuring you of long-term comfort and assurance in our services.

To further boost your confidence, we’ve partnered with the renowned Quality Mark Protection company. This gives you the benefit of insurance-backed protection for our services.

Quick Online Quotes

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or call 075 9437 3464 to get started today

over 21 years of experience

Why Should You Choose EWI Specialists As Your Insulation Contractor?

EWI Specialist Ltd, an Essex-based insulation company, boasts over 21 years of expertise in house rendering insulation. Our team of external wall insulation contractors is committed to quality, trust, and high workmanship standards, with the aim of providing lasting external wall rendering, solid wall external wall insulation, and eco loft insulation.


+21 Years Experience


High-Quality Workmanship


Long-Lasting Relationships


Eco-Friendly Solutions


Comprehensive Service


FREE, No-Obligation Quote

how heat escapes from your home Local External Wall Rendering Specialist

Satisfied Clients

Years of Experience


Satisfaction Guarantee


We Are Highly Recommended Professional Rendering Contractors

We encourage you to check out our customer reviews to gain insight into their experiences with our services. Should you choose us for your insulation needs, we aim to provide a service that you will find satisfying and valuable.

Noticably Warmer

My house looks amazing! Sebastian and his workers did an excellent job. They were all very professional and no bother at all. (You won’t have to worry about making tea and coffee all day, which is a real bonus)! The work was completed by various tradesmen, which meant they were each experts in their own field, and it was completed in the expected time frame. The Sebastians (There are 2 of them) were there to oversee the work from start to finish which ensured everything ran smoothly. My house is now noticably warmer and the damp problem I had appears to be drying up. I’m very happy. Thank you.

external rendering contractors Local External Wall Rendering Specialist

– Nina Apuzzo

Very Helpful

The whole EWI Specialist team have been great. All the work was carried out neatly, swiftly and to the highest possible standards. All the guys were very helpful and friendly and they have kept us informed of progress of the world at every stage of the job. I would recommend them to anyone considering External wall Insulation.

External Solid Wall Insulation 1 Local External Wall Rendering Specialist

– Jerry Gould

Hard Working

External insulation and rendering
EWI Specialist Ltd. – September 2020
EWI Specialist team installed external wall insulation (Rockwool) and rendered the house for us and we are very happy with the work and would recommend without reservations; they were on time, professional, hard working and explained to us the process and answered the questions we had; we are complemented on the new appearance of our house regularly – how modern and smart the house looks now, insulation made such a difference to our single brick house – it is dry and warm in winter now. Job well done!

Exterior Solid Wall Insulation Company Local External Wall Rendering Specialist

– Olga Lubin

Very Professional

EWI Insulation installed our insulation and both Sebastians were very helpful and professional. They kept in touch the whole way through the project. Their team were very professional and I would happily recommend them.

Rendering Outside Walls 1 Local External Wall Rendering Specialist

– Karen Charles

Polite & Organised

Very professional, polite and organised from start to finish. Will definitely recommend EWI Specialist LTD.
Thank you all, specifically Sabastian

External Wall Insulation Specialist Local External Wall Rendering Specialist

– Sair Roman

Very Good Quality

Sebastian is professional and his team performed a very good quality external insulation work and rendering work. I recommend him to anyone who is looking for a good quality result. I wish him and his team all the best.

Solid Wall Insulation Installers Local External Wall Rendering Specialist

– Ahmet Perilioglu


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.