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Home Insulation

External Wall Insulation (EWI) for Homes

External Wall Insulation (EWI) is the process of applying new layers of insulating materials to the outside (exterior) walls of your property. Similar to your putting on a coat when it’s cold outside, you can add more insulating layers to your home.

Quick Installation

EWI can be quickly and easily installed to the external walls of your property. Quickly benefit from this home insulation service.

Improve Energy Efficiency

EWI is a quick and easy method to improve your home's energy performance across both the summer and winter months.

Cost Effective

External Wall Insulation is a cost effective insulation solution that you can quickly and easily install in your home.

EWI for Homes

What is EWI?

This process involves attaching insulation boards to the exterior walls, followed by a protective and decorative render or cladding.

External Wall Insulation (EWI) minimises heat loss, lowers energy bills, and improves indoor comfort by maintaining a stable temperature. It also enhances the building’s appearance, reduces condensation, and safeguards exterior walls from weather damage.

This insulation method is especially effective for older buildings with solid walls that lack cavities for internal insulation.

what-is-external-wall-insulation
Why invest in EWI?

External Wall Insulation Benefits for your Home

Reduced Monthly Bills

By adding more insulating materials to the exterior of your home you will manage 2 things. (1) You will reduce your dependence on consuming energy and fossil fuels. (2) Your monthly bills will reduce because you have lower energy consumption.

Reduced Carbon Footprint

With added external wall insulation, your energy consumption will decrease. By decreasing your consumption, you will be generating less CO2 therefore, becoming more green. EWI is a simple way to become more sustainable.

Eliminates Draughts

Especially in older homes, draughts can be common and a nuisance. Luckily, with external wall insulation, this solution is nearly airtight, and the seal will keep out most draughts, letting you live in peace and without piling on the blankets.

Better Sound Insulation

There is nothing worse than waking up to loud noises on your day off. EWI in your solid walls can help to reduce noise pollution as you have more exterior insulation to your walls, keeping the heat in and the noise out.

Increase Property Value

Buying and selling property can be a nightmare, and having sufficient home energy efficiency is now more important than ever. Your home becomes more lucrative and popular on the market with exterior wall insulation.

Reduce Risk of Mould

Mould can be an annoying issue to have and to constantly deal with, especially if it begins to damage your health. The EWI seal created prevents moisture build up which prevents the growth of mould.

EWI Products

mineral wool ewi

Mineral Wool

Mineral Wool EWI is an A2 fire-rated insulation system which is also highly breathable and suitable for high-rise retrofit projects in addition to home insulation.

graphite ewi

Graphite

Graphite EWI systems benefit from EPS insulation within the product. This allows for high levels of workability and commonly used on low rise residential homes.

k5-1 ewi

K5-1

The K5-1 insulation system benefits from a Phenolic insulation board which provides industry-leading thermal performance benefits. Get great insulation from a thinner material.

ICF

The ICF EWI system can provide high insulated walls, this product can also utilise EPS or mineral wool insulation, it is highly breathable and has different finishing options.

Cement Board

Cement Board is a great insulation system for the new build market and framed structures. It is fully breathable and a water repellent system, perfect for your home.

InstaClad

InstaClad is a suitable home insulation solution for exterior walls, it effectively refurbishes solid wall properties and improves energy efficiency and is a BBA-approved system.

Testimonials

Cavity Wall Insulation
Cavity Wall Insulation
Checkatrade
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Good work all round, all questions answered promptly and thoroughly, folks knew their stuff and were careful to check the best possible result given existing bits of broken polystyrene in the back wall. Larger than average 3 bed semi done in about 3.5 hours once they were set up. More aesthetic than practical, but I was particularly pleased with how well they matched the morter to the existing one for filling the holes at the end of the job. 25 year warantee was a particularly nice touch. Came sooner than booked due to a cancellation which was a bonus. Really noticing the difference already.
Cavity Wall Insulation
Cavity Wall Insulation
Checkatrade
Read More
Absolute perfection. Courteous, cleaned up after. Explained procedure and very efficient all round
Cavity Wall Insulation
Cavity Wall Insulation
Checkatrade
Read More
The 2 engineers did an excellent job of keeping the drilling holes to a minimum and cleaned up very well afterwards. In addition to the cavity wall insulation, they also had to fit a new vent due to our wood burner in the living room. They checked with us throughout the project that we were happy with what they were doing and asked for feedback at the end. Very professional and polite guys. We will hopefully learn over the hot summer and cold winter how effective the work has been. Well done team!
Cavity Wall Insulation
Cavity Wall Insulation
Checkatrade
Read More
Terry Dunford did the surveying for our property he was very knowledgeable and gave very good advice which we check and was correct in everything he said. The men who came do the cavity wall insulation were also very good, they respected us and our home,they explained what they were going to do and warned us about the noise. They cleared up after they had completed the work and asked us to check that we were happy with the way they had left our property which we were. We would highly recommend this company to anyone thinking of having any cavity wall insulation done .
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UK EWI Provider

Why Choose us for your EWI Service?

At Eco Systems Group, we have been providing the UK residential market with excellent, long-lasting insulation for many years. Our team has the experience and expertise to install EWI quickly and efficiently in your home. Our knowledge and understanding of insulation provide a transparent and communicated approach to every customer.

Expert Installers

Contact

Contact Eco Systems today at 0203 411 4885 for expert guidance in selecting the ideal EWI solution for your needs.

Benefit from stress-free installation and exceptional aftercare services, ensuring top-quality results and optimal energy efficiency.

Fill out our contact form to embark on your energy-saving journey with confidence.

EWI Insulation

Frequently Asked Questions

External wall insulation (EWI) typically lasts 25 to 30 years or more, depending on the quality of the materials used and the installation. With proper maintenance and care, it can continue to provide thermal protection and durability for even longer, making it a long-term investment in your home’s energy efficiency and comfort.

If your EWI will drastically alter the appearance of your home, then you may need to get planning permission. Usually, when a EWI service is carried out, it does not alter the greatest change in appearance, and is usually quite modest, in which case you will not need planning permission.

The installation of External Wall Insulation (EWI) typically takes between 2 to 4 weeks, depending on the size of the property, the complexity of the project, and weather conditions. This timeframe includes preparation, insulation installation, and the application of the protective render or cladding. You can contact us for more direct information about EWI.

There are many ways to determine whether your property has cavity walls or solid walls. A cavity has a space between two walls that, when insulated, is filled in. Whereas a solid wall is just a singular wall with no space in between another wall.

EWI provides a range of finishes and colours, enabling you to enhance your property’s aesthetic appeal. It not only modernises the exterior but also offers practical benefits like weatherproofing and superior insulation.

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