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Ultimate 1 commercial HVAC work photographed on site

Commercial HVAC, mechanical & electrical

Air conditioning expertise.
From design to ongoing care.

Commercial and industrial air conditioning, mechanical and electrical services from an experienced Australian business supporting Sydney, Macarthur and New South Wales.

Service & breakdowns

Fault finding, repairs and responsive support for the systems your building relies on.

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Planned maintenance

Preventative care, job records and reporting that help you plan what comes next.

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Projects & upgrades

Replacement, installation and commissioning with mechanical and electrical works coordinated.

Explore our work

The people behind Ultimate 1 Air Conditioning Pty Ltd

Family owned
Built on service.

Established in 2014, Ultimate 1 Air Conditioning Pty Ltd brings more than 45 years of combined family industry experience to commercial HVAC and mechanical services.

We combine personal accountability with the technical capability to look after occupied buildings, complex systems and long-term maintenance needs.

About Ultimate 1

Practical expertise

From fault diagnosis to plant replacement, we consider the whole system.

Safety & accountability

Careful planning and coordination in occupied and operational facilities.

Support beyond installation

Maintenance, technical assistance and support after completion.

Real work, real sites

Projects with substance.

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What our clients say

“To have such responsive, versatile and trustworthy contractors really makes our lives easier.”Executive Manager

Equipment selected for your building

Brands we work with

Mitsubishi Electric
Temperzone
ActronAir
Climaveneta
Carrier
Daikin
Fujitsu General
A-PAC

These leading brands, and many more.
Independent recommendations, backed by broad equipment experience and ongoing support. Our supplier, parts and technical support accounts help us service a wide range of brands. New equipment is selected for suitability, reliability and long-term support.

Let’s talk about your building.

Service, maintenance or your next project. We’re here to help.

Contact our team →
© 2026 Ultimate 1 Air Conditioning Pty Ltd