Expandable Home Certifications & Quality Assurance
View available product compliance documents, electrical and plumbing certificates, technical information and manufacturing quality-control documentation for CYJ expandable homes.
What This Means for You
Benefits for buyers
Reduced risk of hidden defects
Faster on-site installation (fewer fixes needed)
Available documentation to share with your certifier, insurer and builder
Better traceability through documented quality-control processes
From Raw Materials to Delivery
Our manufacturing partners use documented inspection and testing procedures during production and before dispatch.
Incoming Material Inspection
We inspect incoming steel, panels, and key components against agreed specifications (thickness, grade, finish). Any non-conforming material is rejected before production begins.
Frame Fabrication & Weld Inspection
Main frames are fabricated to engineering drawings. Welds, dimensions, and frame squareness are inspected and documented.
Wall, Roof & Floor Assembly
Panels, insulation, and flooring are installed. Fasteners and joints are checked for correct spacing and alignment to ensure long-term performance.
Fit-out Testing (Electrical & Plumbing)
Wiring, outlets, and lighting are tested at the factory. Plumbing lines are pressure-tested for leaks before walls are closed up.
Waterproofing & Function Testing
Waterproofing checks (roof and openings) are performed, and doors, windows, and folding mechanisms (for expandable models) are tested for smooth operation.
Final Inspection & Delivery Pack
A final checklist is completed with photos of key areas. Serial number, drawings, and certificates are packaged as a delivery pack before loading for transport.
Documents & Downloads
View and download available product and component compliance documentation
Please note: Certificates and compliance documents may apply to specific components, systems or product configurations. Final building approval and compliance depend on the complete dwelling configuration, site, engineering and assessment by the relevant certifier or authority.
Australian Standard Certification Addendum 1 192275
Plug Socket EESS 210891 Certification
Addendum 1 B 141005 Plug Certification
TPS Building Wire Certificate (450/750V)
RECS L3 Certificate 192974
Australian Standard Toilet Certification
Addendum 1 A 121203 Switch Certification
Plumbing Certificate WM 080055
Electrical Wires Certificate (New Version)
Ceiling Light Compliance Certificate
Shower Set & Faucet Certificate
Need More Information?
If you have any questions about our certifications or quality control processes, please feel free to contact us. For how these documents fit into the approval process, read our guide to expandable home council approval in Queensland.