For developers and main contractors

Timber frame and SIP manufacturer for housing developers

Timber frame and SIP structural shells for housing schemes, engineered and manufactured in Devon and erected by our own site teams.
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Three-storey homes in Corby, Northamptonshire, built with structural shells from timber frame and SIP manufacturer Etopia Custom
Developers and contractors

One supplier for the whole superstructure, from drawings to a weathertight shell.

On a housing scheme the frame sets the programme. What developers and main contractors need from a timber frame and SIP manufacturer is accurate panels, delivered when promised, and erected by a team that’s accountable for the result. Our team has decades of experience manufacturing and erecting timber frame across the full range of timber frame systems we make.

We engineer the structure to your drawings, manufacture it at our factory in Butterleigh, Devon, and erect it with our own site teams – external walls, internal walls, floors and roof. We work directly for developers, or as a subcontractor to the main contractor.
Rear of a new home at Wilburton, Cambridgeshire, with solar panels
How we work with you

Supply and erect, or deliver complete.

Supply and erect

We manufacture, deliver and erect the structural shell plot by plot, ready for your trades to follow. Timber frame in open, filled or closed panel form, or SIPs.

Complete delivery

Within about a hundred miles of Butterleigh we can take on the whole build, from groundworks to handover, with one point of contact for the developer.

Design and engineering

Our technical team works with your architect and engineer to produce the manufacturing drawings and the structural calculations behind them.

Choice of system

Timber frame and EI SIP are the two systems developers use most. Both are cost-effective; EI SIP suits schemes that need higher thermal performance.
Why Etopia Custom

A timber frame and SIP manufacturer with our own factory and our own site teams.

4Wall and EI SIP hold BDA Agrément certificates issued by Kiwa, and our factory and processes carry the accreditations shown at the foot of this page, so lenders, warranty providers and building control get the paperwork they expect.

Scope, programme and price are agreed in writing before anything is made.
Our walling systems
Example projects

Housing schemes: one built as shells, one delivered complete.

New homes in Corby, Northamptonshire built with structural shells supplied and erected by Etopia Custom

Corby, Northamptonshire

  • 34 homes
  • Structural shells supplied and erected for the main contractor
  • A mix of 4Wall and timber frame
View the full project
A new home at Wilburton, Cambridgeshire, one of 30 delivered complete by Etopia Custom

Wilburton, Cambridgeshire

  • 30 homes
  • Delivered complete, from structural shells to handover
  • One point of contact for the developer throughout
View the full project
Client testimonial
“It was an absolute pleasure to hand over responsibility for delivering this showcase project to Lee, who took care of every aspect of the delivery seamlessly – literally returning to me a set of 30 keys.”

Accreditations