Insulated Concrete Formwork (ICF) is our favourite, most efficient and durable way to build a home. It makes your home cooler in summer and warmer in winter PLUS it saves money on utility bills. It’s a wonder that so many people (homeowners and industry professionals alike) still haven’t become experts in this magic material (unlike us, as we’ve made it our mission to be ICF experts).
At Shiel Developments, we use ICF because it makes homes stronger, more energy-efficient and longer-lasting.
What is ICF?
ICF involves stacking lightweight, hollow blocks made from polystyrene, reinforcing them with steel and filling them with concrete to create a highly insulated, durable structure. It’s a smarter way to build because it creates stronger, warmer and quieter homes that cost less to run over time.
Although traditional brick and block methods are still used across the building industry, ICF outperforms them in almost every way.
Why we love ICF
When we dedicate our time and expertise to a project, we want that home to be comfortable, efficient and long-lasting. ICF is one of the best ways to create a warm, quiet and low-maintenance home that works for years to come.
ICF homes are naturally energy-efficient, keeping the heat in during winter and staying cool in summer. That means lower energy bills and a home that feels comfortable all year round. They’re also incredibly strong and durable, built to handle extreme weather with less maintenance needed over time.
Another huge benefit is soundproofing. The solid concrete core blocks out noise, making homes peaceful and quiet, even in busy areas. And because ICF is a sustainable building choice, it helps reduce waste, improve thermal performance and lower carbon impact.
Why ICF makes sense for homeowners
While the industry is still catching up, we’re already delivering the benefits of ICF to homeowners across Northamptonshire and Cambridgeshire.
If you’re considering a new-build, renovation or heritage conversion, we’d love to share our expertise about how ICF can create a stronger, more sustainable home for you.
About Shiel Developments
Shiel Developments is a bespoke luxury home builder in Northamptonshire and Cambridgeshire, leading the way in sustainable, energy-efficient home building. Led by Iain Purves, the team specialises in ICF construction, delivering homes that are smarter, stronger and built to last.
With a focus on craftsmanship, innovation and long-term efficiency, we help homeowners create spaces that work better, cost less to run and stand the test of time.
📩 info@shieldevelopments.com | 📞 01327 844598