Air Conditioning Installation, Servicing & Repairs
From new installations to ongoing maintenance and fast repairs, we ensure your system runs smoothly all year round.
Read More
Complete air conditioning and HVAC solutions designed for comfort, efficiency, and long term performance across residential, commercial, and industrial spaces.
From new installations to ongoing maintenance and fast repairs, we ensure your system runs smoothly all year round.
Read More
Energy efficient cooling solutions for homes, apartments, and offices designed for comfort and controlled airflow.
Read More
Advanced climate control systems for offices, retail spaces, and large commercial buildings across Greater Sydney.
Read More
Heavy duty ventilation and cooling systems designed for warehouses, factories, and large scale environments.
Read More
End to end design, installation, and maintenance of chilled water systems and mechanical HVAC infrastructure.
Read More
Our Approach
We focus on real HVAC solutions that suit your space, usage, and budget.
• Air conditioning installation for homes and commercial buildings
• Planned HVAC maintenance and servicing
• Emergency air conditioning repairs
• VRF, VRV, split, and ducted system installation
• Energy efficient system upgrades and replacements
Every project is planned properly, with attention to airflow, performance, and long term reliability.
Choosing the right HVAC contractor makes a real difference in performance, comfort, and long term cost.
Clients choose us because we offer:
• Reliable and consistent workmanship
• Clear, honest communication
• Proper system design and installation
• Experience across residential and commercial projects
• Focus on long term efficiency and durability
• Ongoing maintenance and support
We take pride in doing work that lasts, not work that needs to be redone.
Services 
We help keep your home comfortable all year round with efficient cooling and heating systems designed for Australian conditions. Services include: Split system air conditioning installation Ducted air conditioning systems System replacements & upgrades Aircon servicing & chemical cleaning Fault finding & repairs
Read More
We design and install commercial HVAC systems that improve comfort, airflow and energy efficiency for businesses across Sydney and NSW. Services include: VRV / VRF systems Ducted HVAC systems Office & retail air conditioning Preventative maintenance programs System upgrades & replacements
Read More
We deliver heavy-duty HVAC systems for warehouses, factories and large facilities requiring strong airflow and ventilation control. Services include: Large-scale HVAC installation Industrial ventilation systems Airflow design & optimisation Equipment servicing & maintenance System performance upgrades
Read More
We specialise in advanced HVAC systems including chillers and large mechanical plant installations for commercial and industrial environments. Services include: Chiller installation & replacement Mechanical HVAC system design Central plant systems Cooling tower integration System commissioning & optimisation
Read MoreAt Nexa Air, we proudly deliver HVAC projects across Sydney and all across New South Wales. No matter the size of the project, from residential homes to large industrial facilities, we have the capability to deliver complete HVAC solutions statewide.
Sydney Regions:
Bella Vista, Blacktown, Kellyville, Baulkham Hills, Castle Hill, Dural, Kenthurst, Stanhope Gardens, Parklea, Quakers Hill, Glenwood, Norwest, Seven Hills, Parramatta, Liverpool, Penrith, Campbelltown and surrounding suburbs.
NSW Coverage:
We also deliver HVAC projects across all of New South Wales, including regional and metro areas depending on project scope.
👉 If your project is in Sydney or anywhere across NSW, Nexa Air can assist.
Bella Vista
Blacktown
Western Sydney
NSW Commercial Site
Nexa Air Pty Ltd is a family-run business providing complete HVAC and air conditioning solutions across Bella Vista, the Hills District, and Greater Sydney. We specialise in split system installation, ducted air conditioning, and full-service HVAC solutions for residential, commercial, and industrial projects.
From small home air conditioning installations to large-scale commercial and industrial developments, we manage every stage, from system design and installation to ongoing maintenance and servicing. Our focus is on delivering reliable, energy-efficient climate control solutions tailored to your space and needs.
Yes. We work across all sectors:
* Residential homes and apartments
* Commercial offices, retail, and fit-outs
* Industrial facilities and large-scale systems
Each project is designed to deliver reliable performance, energy efficiency, and long-term value.
Yes, we are based in Bella Vista and service all major Sydney regions, including the Hills District, Norwest Business Park, Parramatta, Blacktown, and Western Sydney growth areas.
We specialise in:
* Split system air conditioning
* Ducted air conditioning systems
* Reverse cycle systems
* Commercial and industrial HVAC solutions
All systems are selected based on performance, efficiency, and suitability for your space.
Yes. All installations include a workmanship warranty for added peace of mind.
In addition, systems come with manufacturer warranties ranging from 5 to 10 years, depending on the brand and model.
We assess your property layout, insulation, usage, and load requirements to recommend a system that delivers consistent airflow, energy efficiency, and long-term reliability.
In many cases, upgrading is more cost-effective than repeatedly repairing an outdated system.
Older systems:
Consume more energy
Provide inconsistent cooling or heating
Require frequent repairs
Use outdated technology
Modern systems are significantly more efficient, quieter, and reliable. An upgrade can reduce running costs while improving overall comfort and performance.
Most systems should be considered for replacement if they are:
Over 8–12 years old
Requiring frequent repairs
Struggling to maintain temperature
Causing high energy bills
Upgrading at the right time prevents ongoing costs and ensures better efficiency.
For larger or complete system upgrades, we typically handle:
System design and load calculation
Removal of existing equipment
Supply and installation of new units
Ductwork (for ducted systems)
Electrical and control setup
Testing, commissioning, and performance checks
This ensures your system is installed correctly and operates at peak efficiency from day one.
Yes. We work with builders, developers, and businesses across Sydney to deliver scalable HVAC solutions for offices, warehouses, retail spaces, and industrial environments.
Most split system installations are completed within a day. Ducted and larger commercial systems may take longer depending on the size and complexity of the project.
Yes. We provide professional cleaning, servicing, and preventative maintenance to extend system lifespan, maintain efficiency, and ensure air quality.
We recommend servicing at least once per year for residential systems. Commercial and industrial systems may require more frequent maintenance depending on usage.
Yes. We install modern HVAC systems designed to reduce energy consumption while delivering consistent and reliable climate control.
Yes, we provide obligation-free quotes across Sydney with transparent pricing and no hidden costs.
Contact us today to book a consultation. We’ll assess your requirements, recommend the right system, and provide a clear, competitive quote.
If you are looking for HVAC contractors in Greater Sydney, we are here to help with honest advice and practical solutions tailored to your space.
We guide clients from initial consultation to installation, upgrades, and maintenance, ensuring every system is tailored for comfort, efficiency, and reliability.
We install energy-efficient HVAC systems, eco-friendly chillers, and modern refrigeration solutions, reducing your carbon footprint and energy costs.
Covering split systems, multi-head systems, ducted systems, chillers, cool rooms, VRF/VRV systems, heat pumps, rooftop units, and smart building automation.
Trusted by clients across Sydney and NSW for reliable, efficient, and high-quality HVAC solutions.
The team lead by Aryan were fantastic. Arrived on time as always promised. Very professional, quick diagnoses the problem, clearly explained the problem and the solution. They are very honest, fair and transparent pricing. They made my air conditioning works more efficient.
Excellent workmanship and smooth installation. Communication was clear, pricing was fair, and the final result was spot on. Highly recommended.
The Nexa Team has been very honest and provided us with comprehensive information on different brands as well as zoning options. The newly installed system is performing perfectly, it delivers excellent cooling, and its energy efficiency is impressive. Another major advantage is the mobile app control, which allows me to make adjustments without having to run up and down to the unit.
We recently had a ducted air conditioning system installed by Nexa Air in Stanhope Gardens and had a really good experience. The team was friendly, on time, and made the whole process easy from start to finish. The installation was done efficiently, and everything is working perfectly. Our home is now much more comfortable, and you can tell they take pride in their work. If you’re looking for a reliable local company for ducted air conditioning in Stanhope Gardens, we’d definitely recommend Nexa Air.
Nexa Air recently completed commercial projects in Bell Vista and Kellyville, and the experience was excellent from start to finish. They handled a full VRV system installation as well as a cool room setup, and their attention to detail in both design and execution really stood out. The way they planned, coordinated, and delivered the projects showed a high level of professionalism and experience. Everything was completed efficiently and to a very high standard. Whether you need air conditioning, heating, or cooling for your commercial or residential space, they are the right people to consult. Highly recommend Nexa Air for any professional HVAC work.
