At Mac Group, we lead in eco-smart deconstruction processes, going beyond demolition to reinvent materials as valuable resources. Our selective deconstruction process recovers plasterboard/gib board, timber, metals, carpets, wiring, plastic and glass, with up to 95% diversion from landfill.
Our deconstruction phases includes the following.
Pre-demolition assessment & planning
- We perform in-depth site evaluations and prepare waste management plans aligned with industry standards to achieve 60–95% diversion rates.
Selective deconstruction
- Non-structural elements, such as partition walls, ceilings, flooring, cabinetry, fixtures, and lighting are carefully dismantled to preserve materials for reuse and recycling.
Waste removal & transportation
- Salvaged materials are segregated onsite and responsibly transported using our own trucks, ensuring minimal contamination and efficient recovery.
Repurpose, reuse & recycling
- We partner with certified recyclers (for plaster/gib, glass, metal, wiring, and timber) and charitable organizations to repurpose furniture and fixtures by diverting maximum material from landfill.
Post-deconstruction review & site management
- A thorough post-deconstruction audit is conducted to validate clean-up completion, environmental safety, and compliance with Mac Group’s P-MS09 Greenstar waste-management procedure.
Detailed process documentation is outlined in Mac Group’s P‑MS09 Greenstar Waste Management Procedure.
At Mac Group, we hold an impressive suite of industry-leading certifications—reinforcing our unwavering dedication to quality, environmental stewardship, and workplace safety:
- Eco Choice EC-59-19 for Construction & Demolition Waste Services
Recognised by Eco Choice Aotearoa and the NZ/Australian Green Building Councils, this certification verifies our waste-minimisation plans, responsible sorting, recovery processes, and transparent reporting protocols. - ISO 9001 – Quality Management System
The world’s most widely adopted standard for quality management, ISO 9001 demonstrates our commitment to consistent service delivery, meticulous process control, and continuous improvement and giving you confidence in our performance - ISO 14001 – Environmental Management System
This internationally recognised standard guides our efforts to reduce environmental impact, manage resources responsibly, and engage stakeholders in greener business operations. - ISO 45001 – Occupational Health & Safety Management System
Focused on delivering safe, healthy work environments, this certification ensures we proactively identify and mitigate physical, chemical, and psychosocial risks protecting our teams and clients alike.
Supporting the Tongan Community through Tokai Kolo Church Partnership
Mac Group is proud to maintain a strong and ongoing relationship with the Tokai Kolo – Tongan church community, built on shared values of service, respect, and cultural connection. As part of our commitment to giving back, we actively support initiatives that provide practical assistance to communities in need across Tonga. This includes the donation and coordination of high-quality materials such as timber, joinery units, doors, carpet, furniture, and other surplus construction and fit-out items. Rather than allowing these materials to go to waste, we carefully recover and repurpose them for shipment, where they are used to support housing, community facilities, and church infrastructure. Through this partnership, we are able to contribute meaningfully to sustainable development and wellbeing in the Pacific, while also reducing landfill waste here in New Zealand. It’s a practical example of how our values of environmental responsibility and social impact come together to make a real difference.