
Why we stand out
25 years of practical experience
We've fitted insulation and render systems across Liverpool for 25 years.
Silicone or spray cork finishes
Choose a smooth silicone finish or a textured spray cork topcoat.
Tidy work from start to finish
We protect your property and clean it thoroughly once finished.
A smarter way to warm and protect your home
External wall insulation helps stop heat escaping through tired outside walls, which can make a real difference if your home feels cold even when the heating is on. We install insulation boards to the exterior, then build up a reinforced render system that improves thermal performance and leaves you with a cleaner, sharper finish. That makes it a strong option for older solid wall homes, properties with worn facades, and houses that need more than a quick cosmetic patch.
Many homes lose warmth through external walls, and this kind of upgrade can help you hold onto more of the heat you're already paying for. We complete each system with either silicone render or spray cork, depending on the look and performance you want. Kerrigan Developments carries out this work with the sort of care you'd expect from a family-run business that has spent years working on homes across Liverpool.


What you get from the right EWI system
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50 to 100 mm EPS or mineral wool
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Bonded and mechanically fixed boards
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Reinforced mesh basecoat for strength
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Primer coat for even coverage
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Silicone render in many colours
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Spray cork with natural insulation
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Breathable finish against damp and frost
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Full property protection and clean down
What goes into the system?
Our External Wall Insulation (EWI) system uses 50 to 100 mm EPS or mineral wool insulation that is bonded and mechanically fixed for a secure fit. We then apply a full basecoat with reinforced mesh to improve strength and help resist cracking over time.
A primer coat follows to create an even surface and support a durable topcoat. If you prefer a smooth, modern finish, we can apply silicone render that is breathable, water-repellent and available in a wide range of colours. If you want something more textured, Kerrigan Developments can finish the surface with spray cork, which adds natural thermal benefits, flexibility and strong UV resistance.
Frequently asked questions

