Process of EWI

External Wall Insulation (EWI) is a specialised process, installed by specialist contractors. A procedure, determined by the manufacturer must be strictly adhered to in order to achieve maximum performance of the system and also to validate any warranty. Our chosen EWI system leads the way worldwide in terms of innovation and quality components. ***Any External Wall Insulation system installed without the correct, approved components is at serious risk of failure and can be the subject of very expensive repairs.***
We will now take you through the basic steps of EWI:
Please note: this list of steps is not exhaustive and is designed only to give an indication of the process.

Insulation boardsStep 1

The required type and size of insulation is adhesively and mechanically fixed to all external walls. This creates an insulation envelope that prevents heat loss and cold bridging, which can occur using other types of insulation, e.g. blown cavity insulation. We use a uPVC basetrack (no thermal bridge, minimal thermal movement and a full mesh bead to link with main wall mesh, unlike metal track systems), 100% nylon fixings (no thermal bridge) and very high quality render beads throughout all installations. We are fully certified and registered to employ a number of insulation types with our external wall insulation systems. You can read more information on these insulations on our insulations page.


Reinforcing mesh

Step 2

An alkali-resistant open-weave fibre mesh is embedded onto the insulation board using a polymer-modified cement basecoat. This provides both impact resistance and tensile strength. Various extra strengthening meshes are installed at vunerable junctions to ensure optimum strength and no cracking. We an offer a range of impact resistances depending on the application of the EWI system. For further information on the applications we can cater for, please contact us.




Step 3

Basecoat renders are allowed sufficient time to dry and a coloured primer is then applied (by roller, brush or spray). (Drying takes approximately 24 hours.) This aids adhesion/ water resistance, and also improves the colour uniformity on the final finish. This is not universal to all systems, but we see this as a very important step to providing the best possible system.



Step 4

A low maintenance acrylic render finish is then applied (troweled or sprayed).This finish is available in a range of colours and textures with extensive pallets to choose from. We can even match existing colours and textures and also have the ability to apply real brick facades. We have a choice of render types and specifications, for various exposures and climatic conditions. We also supply and install mineral monocouche renders with our insulation systems if a specific texture or design is required.



Armstrong completeStep 5

Comfort Solutions will complete your insulation system with whatever decorative features you may desire. Raised window bands, raised plinths, quoin stones, etc. etc... If you can think of it, then we can probably do it! Don’t have sufficient soffit widths? No problem. We have solutions for these issues as well as countless others. We can overcome almost any problem in an aesthetically pleasing manner. We will leave you home with stunning good looks and always strive to make all our projects the envy of your neighbours. After all, we want them to buy too!


Please note the above steps are not exhaustive and there are other steps and procedures to be followed during installation. The above is designed simply as a guide to give a basic understanding of the process of EWI.

The final result is a very durable, low maintenance and beautiful finish that will only need hosing down to clean every 3 to 5 years. Furthermore, your new walls will need no further painting for many, many years (up to 40); so choose you colour carefully! For further information on the process, please contact us.



Client Testimonials


Amy Healy. Glenisland

I upgraded the boiler in my home and needed a heating solution for my office which is in a separate building.
Comfort solutions advised on the best possible solution for my unique circumstance. I am delighted with my new heating system and the level of control it offers. I... Read more

Brendan Coyne, Castlebar

Solar Thermal & Condensing Boiler

I am delighted with the results of the work done on my house. Particularly pleased with the solar panels to date. High efficiency boiler is very effective.

Read more

Ciara O’Riordan, Westport

Fergus and his team were excellent to deal with from the outset. Fergus' knowledge & customer service is second to none. All of the Comfort Solutions team were extremely polite, punctual & their attention to detail was excellent. We got cavity wall insulation and attic insulation and we immediately noticed... Read more

Barbara Bradby, Ballycroy

External Insulation, Loft insulation, DPC

Our little house by the sea in Co Mayo was a dream, but the damp was a nightmare. I looked into external insulation first as a solution for the damp which was breaking out on all the internal walls. The walls were concrete, there was condensation... Read more

Sarah Willert, Newport

Attic Insulation, Boiler & Heating Controls upgrade

I am happy to recommend Fergus McManamon and the Comfort Solutions team who worked on my house. They did attic insulation, change of boiler and a series of improvements in heating and energy economy. The house is now warmer and dryer.


Read more

Barry & Marion Talbot, Westpor

We are pleased with all the work Fergus and his team have done to our house. We expected it to be good but it has surpassed all our expectations. The workmanship was first class and everyone was so helpful with any questions we asked. We would highly recommend Comfort Solutions... Read more

Eithne O' Malley, Louisburgh

Loft Insulation

We had our attic insulated last year by Comfort Solutions and have been more than happy with the results.

Read more

David Prentice, Tourmakeady

External Wall Insulation

Comfort Solutions Ireland have just completed an excellent job on this cottage of ours in Co. Mayo. I can recommend this firm for efficiency and leaving a premises neat and tidy. The result is a much more comfortable holiday home for our family. Read more

Martin Roche, Ballinamore

External Insulation

I was very impressed by the no-nonsense approach of the contractor, the price was agreed the contract completion date set and I was kept informed of progress and problems at all stages of the contract, everything was completed on time with no extras, the site was cleaned up every evening,... Read more

Helen McLoughlin, Ballindine

Cavity Wall & Loft Insulation

I'm delighted with the service from Comfort Solutions! I would have no hesitation in recommending them to friends. My home is now so warm and snug - thanks Fergus


Read more

Newsletter Signup

To receive free e-book and subscribe to updates please enter your details below.