Panelised Frames
You can’t simply deliver the perfect bespoke home on the back of a lorry — especially when robust design quality truly matters, although it can be done at a cost.
While traditional masonry and on-site stick building still serve a purpose, they often slow down programmes and expose materials to weather risk. In contrast, if you want faster on-site build times and higher precision, you must invest more effort upfront in detailed design and offsite manufacturing. That early coordination allows us to resolve structure, services, airtightness and finishes before the build reaches site. As a result, installation becomes quicker, cleaner and more predictable.
Ultimately, offsite manufacturing reduces site risk, shortens programme time, and delivers a higher-quality, energy-efficient home.
Installing Panelised Frames
Timber Frame Panels
High-Performance Timber Frame Panels
Sustainable Offsite Construction in Cornwall & the UK
At Building with Frames, we manufacture precision-engineered timber frame panels designed to exceed Future Homes Standard requirements.
Our panels are specified for projects where airtightness, low energy demand and carbon reduction are fundamental — not optional.
Timber frame offers a structural solution that actively stores carbon, and where wall thickness does not materially impact layout, we incorporate recycled insulation to further reduce embodied carbon.
Typical panel dimensions:
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Up to 2.7m high – Up to 4.8m long – Approx. 300mm thick
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The result is a high-performance envelope system suitable for architect-led, low-energy buildings across Cornwall, the Southwest and beyond.
Installation & Programme Certainty
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Panels can leave our Cornwall facility at varying stages of completion, including:
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First-fix services installed – Windows factory-fitted – External cladding applied
Increasing factory completion improves quality control, reduces site time and provides greater programme certainty — a key advantage for complex or design-driven projects.
Sustainable Insulation & Passive-Level Performance
Our panels can be engineered to meet performance standards up to Passive House levels.
We use Warmcel, a recycled newspaper insulation system installed by our team trained by PYC Group.
Structural insulated panel systems
UK Manufactured SIP Panels
High-Performance Structural Insulated Panels
At Building with Frames, we exclusively process UK-manufactured SIPs (Structural Insulated Panels) to ensure quality control, certification compliance, and reliable lead times.
SIPs use rigid urethane insulation — widely recognised for delivering high thermal performance within slimmer wall build-ups. This technology is commonly used in insulation products from leading manufacturers such as Kingspan, Cellotex and Recticel.
The result is a structurally efficient system capable of achieving excellent U-values with reduced wall thickness — ideal where internal space is at a premium.
Engineered for Performance
Our SIP systems range from 100mm to 200mm thick and, when combined with an additional internal service layer, can readily achieve Passive House levels of performance.
We maintain a full suite of standard house types complete with calculated Psi values, giving architects confidence in SAP, PHPP and energy modelling from the outset.
Flexible Installation for Challenging Sites
SIP panels are typically manufactured at 1200mm wide, allowing them to be delivered in manageable packs – Installed via crane or telehandler or by hand using dolly systems.
This flexibility makes SIP construction particularly well suited to restricted or difficult access sites.
Panels can also be pre-assembled into larger sections for faster on-site erection when access allows.
Factory Integration & Offsite Efficiency
As with our timber frame systems, SIP panels can leave our facility at varying stages of completion, including, first-fix wiring and plumbing, factory-fitted windows and external cladding
Greater factory completion improves build speed, reduces site risk, and enhances quality control. Increased panel weight from additional layers is typically accommodated within the planned lifting strategy.
Process Partnerships
We operate in process partnership with Hemsec and SBS SIPs
Ensuring robust supply chains and proven manufacturing standards.
