Homeowner
Kilsaran EWI & ICF Solutions
Upgrading your home is a major decision and choosing the right insulation and render system shouldn’t be complicated. At Kilsaran, we’ve spent over 15 years delivering high-performance “External Wall Insulation” (EWI) and “Insulated Concrete Formwork” (ICF) system’s across Ireland, combining proven technology, trusted partnerships, and local expertise.
This page is designed to guide you, step-by-step, through what EWI and ICF are, how they benefit your home, how to access SEAI grants, and how our national network of merchants and installers can support you from enquiry to completion.
What Is External Wall Insulation (EWI)?
External Wall Insulation is one of the most effective ways to improve the energy efficiency, comfort, and appearance of your home. It involves fixing high-performance insulation boards to the exterior of your walls and finishing them with a durable, weather-resistant render.
Choose from a wide palette of colours and finishes to create a fresh, modern façade. The result is a home that feels warmer, looks better, and performs to modern energy standards, without losing any internal space.
What Is ICF (Insulated Concrete Formwork)?
If you’re building a new home or extension, Insulated Concrete Formwork offers a fully insulated structural system from day one. ICF walls are formed by stacking lightweight insulated blocks, which are then filled with concrete, creating a highly efficient, airtight structure with an exceptionally strong core.
Kilsaran’s ICF render systems are designed specifically for Irish conditions and deliver a seamless, long-lasting finish.
Why Choose Kilsaran?
Kilsaran is one of Ireland’s leading manufacturers of façade, mortar, and render solutions.
For EWI and ICF, we proudly supply Ceresit by HENKEL , a globally trusted system used throughout Europe — fully certified, rigorously tested, and approved by the SEAI for grant-supported projects.
For homeowners, this means:
- You’re choosing a system with real technical depth
- You’re selecting a solution that meets Irish building regulations
- You have peace of mind that your render finish is backed by Ireland’s leading supplier
- You can access an experienced technical team
A National Network of Merchants & Approved Installers
A high-performing system is only as good as the people who install it.
That’s why Kilsaran works with a dedicated network of trained, approved installers and leading builders’ merchants across Ireland.
Our network ensures:
- Access to approved Ceresit installers for SEAI grant projects
- Knowledgeable advice in local merchant branches
- A choice of trained professionals to complete your project
- Support from Kilsaran’s Technical and Training teams
- Availability of product, samples, colour cards, and guidance
Thinking About a Grant? Here’s What You Need to Know.
If you’re retrofitting your home with External Wall Insulation, you may qualify for financial support from SEAI through the Home Energy Grants programme.
The key requirement is simple:
- Grant-supported EWI must be installed by an SEAI-approved installer using an SEAI-approved system.
- Kilsaran’s Ceresit EWI System meets this approval criteria.
To learn more — including eligibility, grant values, installer requirements, and how to apply, visit the SEAI website:
We recommend reviewing this before beginning your project, as it ensures your installer and system meet all grant conditions.
Need Guidance or Have Questions? We’re Here to Help.
Every home is different. Every renovation has its own requirements.
If you’d like a member of our Technical Team to look at your project, recommend a system, or help you understand what’s needed:
Complete our quick enquiry form
Our team will review your details and provide clear, tailored guidance — whether you’re retrofitting, extending, or building new.
Your Home. Your Choice. Our Expertise.
Thank you for considering Kilsaran for your home improvement journey.
From energy upgrades and modern render finishes to full new-build systems, we’re here to help you make the right choice with confidence.