Accurate modelling, quick turnaround, and clear guidance to keep your project moving.

Our core services
Comprehensive solutions for NCC 2022 compliance, NatHERS assessments, and building performance consulting tailored for architects, builders, and developers.
Accurate thermal performance ratings for residential projects, ensuring compliance with regulatory standards and supporting sustainable design outcomes.
Detailed energy modelling to meet current code requirements, helping streamline approvals and avoid costly design changes.
Integrated assessment of all building systems to optimise energy efficiency and comfort across the entire home.
Expert advice to enhance thermal performance, reduce energy use, and improve occupant comfort from concept to completion.
Technical guidance for architects and builders to achieve project goals while maintaining compliance and efficiency.
Thorough analysis of construction documents to identify opportunities for improved energy outcomes and cost savings.
Assessment of building envelope details to minimise heat loss and ensure long-term performance.
Clear, compliant documentation for council submissions and project stakeholders, supporting a smooth approval process.

Get expert energy compliance advice
Professional NatHERS assessments and building performance consulting for architects, builders, and developers.
Ensure your residential projects meet energy efficiency standards with detailed modelling, practical recommendations, and clear compliance pathways.
Hear from architects and builders who rely on our expertise for energy compliance and building performance consulting.
“Old Man Gray Energy provided clear, actionable advice that streamlined our NCC 2022 compliance. Their modelling helped us optimise design and reduce construction costs.”

Answers to common questions about energy assessments, NCC 2022 compliance, and our consulting process.
A NatHERS assessment evaluates the thermal performance of a residential building design using accredited software. It provides a star rating based on energy efficiency, which is required for building approval under current regulations.
NCC 2022 introduces updated energy efficiency requirements for new residential buildings. Projects must meet higher thermal performance and whole-of-home energy standards, impacting design, material selection, and compliance documentation.
To begin an assessment, we require architectural plans, window schedules, building specifications, and any relevant site details. Early provision of this information helps streamline the compliance process.
Yes. We offer design optimisation advice to improve thermal performance and cost-effectively meet compliance. Our recommendations can help reduce construction costs while enhancing occupant comfort.
Still have questions about our services?
Reach out for project enquiries or technical advice. Complete the form and our team will respond promptly.
