Expert Mechanical Consulting & HVAC Design Services
At Treadies HVAC & R, mechanical consulting has grown naturally from our years on the tools — learning what works, what lasts, and how to make things better.
We’ve supported all kinds of projects, from homes to commercial spaces, bringing practical insight and a focus on getting the detail right.
For projects that call for more design integration, tighter performance targets, or early-stage planning, we invite you to connect with Air Theory.
Air Theory is our dedicated consulting arm.
It was created to support architects, builders, and project teams delivering smarter, more sustainable spaces — where comfort, compliance, and clarity all need to come together.
Whether you’re working on a high-performance home or a community-scale development, Air Theory helps shape mechanical solutions that quietly elevate the way buildings breathe and perform.
Our Mechanical Consulting Services Include:
Design Reviews & Optimisation
Reviewing mechanical designs to ensure functionality, efficiency, and compliance—offering insight on ways to reduce costs, improve performance, and deliver better outcomes.
Value Engineering
Identifying smarter ways to achieve project goals without compromising on quality. We focus on long-term savings, energy efficiency, and smarter product selection.
System Audits & Condition Reports
In-depth assessments of existing HVAC & R systems to evaluate performance, energy usage, and future-proofing potential.
Project Support & Technical Guidance
Supporting builders, architects, and project managers with technical advice across all stages—from planning and tender reviews through to commissioning and handover.
Sustainable Solutions & Compliance Advice
Guiding clients toward solutions that meet compliance standards while promoting energy-efficient, environmentally conscious outcomes.
Specialised consulting for Passive and High‑Performance Homes
If your project calls for deep design integration, airtightness strategies, or compliance with Passive House and NatHERS performance targets, our specialised consulting team at Air Theory is here to help.
From concept to commissioning, Air Theory partners with architects, builders, and homeowners to deliver systems that are smart, seamless, and future-ready.
Frequently Asked Questions About Our
Mechanical Consulting & HVAC Design Services
Below we’ve answered some of the most common questions about our mechanical consulting & HVAC design services to help you make an informed decision. Got more questions not covered here? Feel free to reach out to us via our contact page. We’re here to help you find the best cooling solutions tailored to your needs.
What is HVAC design, and why is it important for commercial spaces?
HVAC design involves planning and engineering heating, ventilation, and air conditioning systems tailored for commercial environments to ensure optimal performance, energy efficiency, and air quality. Proper design is essential for maintaining comfortable and safe indoor conditions while controlling operational costs.
Why should I hire an HVAC consultant for my business?
An HVAC consultant brings specialised knowledge in system design, energy efficiency, and regulatory compliance. They ensure your HVAC system is optimised for performance, cost-effectiveness, and sustainability, helping avoid costly mistakes during installation or upgrades.
What industries do you provide mechanical consulting services for?
We offer expert services across various commercial sectors, including:
- Office buildings and corporate spaces
- Retail and shopping centres
- Healthcare facilities and laboratories
- Industrial plants and warehouses
- Educational institutions
- Hospitality and entertainment venues
How much does commercial HVAC design consulting cost?
Costs vary depending on the project’s complexity, size, and specific requirements. We offer customised quotes after an initial consultation to assess your needs and project scope.
Do you provide project management for commercial HVAC installations?
Yes, we offer comprehensive project management services, overseeing every stage of the HVAC design and installation process. Our team ensures projects are completed on time, within budget, and to the highest quality standards.
Can you help with Passive House or high-performance home designs?
Visit Air TheoryAbsolutely — for these types of projects, we recommend working with our specialist consulting arm, Air Theory.
Air Theory works exclusively with clients building high-performance or Passive House-standard homes. They provide early-stage mechanical design, thermal comfort strategy, airtightness planning, and ventilation systems (like MVHR) that integrate seamlessly into your architectural vision.
If you’re aiming for energy efficiency, long-term performance, or compliance with NCC, NatHERS or Passive House targets — Air Theory is your best next step.
When should I speak to Air Theory instead of Treadies?
Connect with Air TheoryIf your project involves advanced energy efficiency, architectural integration, or certification targets, Air Theory is your best next step.
While Treadies focuses on delivering premium HVAC systems and installations, Air Theory offers dedicated consulting services for homes that need a more considered approach from day one. That includes Passive House planning, performance-led system design, and mechanical advisory across the design and construction process.
Air Theory is our dedicated consulting division, created to serve homeowners, builders, and architects working on performance-driven homes. Their team provides design-led mechanical consulting from concept to commissioning.
If your project is unique, detailed or sustainability-focused — Air Theory is the right place to start.
Does a Passive House still need heating, cooling or air conditioning?
Learn MoreGreat question — not in the way you’re used to.
Thanks to airtight construction, insulation, and ventilation strategy, Passive Homes need only minimal heating or cooling input — but the mechanical systems still need to be carefully designed.
That’s where Air Theory comes in. They design mechanical systems that prioritise comfort, indoor air quality, and energy efficiency — without overengineering or overspending.
Engaging Air Theory early in the design process helps avoid compliance issues, costly redesigns, and inefficiencies down the track.
Get in Touch
Reach out to a member of our expert team today for a free quote and top-quality service you can trust.