
SIPs homes – high-performance homes, built for the future.
If you’re exploring self-build options in the UK, you’ve probably come across SIPs (Structural Insulated Panels). Over the past two decades, this innovative system has become a popular choice for those who want a home that’s energy-efficient, airtight, and quick to construct.
At Elsworth Projects, we specialise in guiding self-builders and developers through the process of building with SIPs. From design to delivery, we help you create a home that’s comfortable, sustainable, and built to last for generations.
What are SIPs?
Structural Insulated Panels (SIPs) are high-performance building components made by bonding two layers of OSB (oriented strand board) to a rigid insulation core. This simple “sandwich” structure creates a panel that is incredibly strong, airtight, and thermally efficient.
Unlike traditional timber frames that use a skeleton of studs filled with insulation, SIPs combine structure and insulation in one panel. This means fewer cold spots, reduced air leakage, and a home that performs consistently well. SIPs are typically used for walls, floors, and roofs, creating a robust and energy-efficient building envelope.
Why choose SIPs for your self-build?

Are SIPs the right fit for you?
If your priorities are speed, airtightness, and exceptional energy performance, SIPs may be the best choice for your self-build. They’re ideal for those who want to future-proof their home, reduce energy bills, and build sustainably. If you prefer flexibility with insulation types or a lower upfront cost, a modern timber frame might suit you better.
While SIPs can be slightly more expensive upfront than a basic timber frame, the difference is often only a few percent of the total build cost. Given their performance, airtightness, and energy savings, many self-builders see SIPs as an investment that pays back over time through lower running costs and greater comfort.
At Elsworth Projects, we specialise in supporting self-builders and developers with SIPs and timber frame construction. Whether you’re exploring options or ready to commit, we’ll guide you through design, planning, and project management to ensure your build is a success.
What other support can we offer?
We offer a full supply and erect service, ensuring your timber frame or SIPs home is installed quickly and correctly.
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Performance – we work with you to understand your performance requirements.
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Architectural Review – one size does not suit all, so we carefully review your architectural design to understand the performance requirements.
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System selection – we select the best system that will provide best value and deliver your long-term performance objectives.
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Design & Engineering – we work with your architect to finalise technical drawings.
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Prefabrication – panels are manufactured off-site by our manufacturing partner to meet architectural arrangements and specifications.
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Delivery to Site – we organise the delivery of all components ready for assembly on site.
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Erection by Expert Teams – our skilled installers ensure a smooth, high-quality build.
Our process
Why use our supply and erect service?
✔ Specialist Expertise – we understand performance parameters so are able to specify the best system solution for your unique architectural design.
✔ Faster Installation – reducing construction time & on-site labour costs.
✔ Quality Assured – ensuring panels are installed correctly for maximum performance.
✔ Compliance – meeting Building Control & warranty requirements.






