AIR CONDITIONING SERVICES
Split System Installation Melbourne
Expert split system air conditioning installation for homes and businesses across Melbourne. Quiet, energy-efficient comfort all year round.
5.0
Google Rating
Licensed
Electricians & HVAC
2,500+
Jobs Completed
VEU
Approved Provider
Split system air conditioners are one of the most popular and cost-effective ways to heat and cool individual rooms or open-plan living areas. At Polygon BG Air & Electrical, we specialise in professional split system installation throughout Melbourne — from compact wall-mounted units to powerful high-wall models.
A modern reverse-cycle split system provides both cooling in summer and heating in winter, making it an incredibly versatile and energy-efficient choice for Melbourne's variable climate. With inverter technology, these systems adjust their output to match the conditions, using less energy and keeping your space at the perfect temperature.
Our licensed technicians handle every aspect of the installation — from helping you choose the right brand and model, to positioning the indoor and outdoor units for optimal airflow and aesthetics, right through to commissioning and testing.
- Wall-mounted, floor-standing and bulkhead options available
- Reverse-cycle heating and cooling in one unit
- Whisper-quiet operation as low as 19dB
- Inverter technology for energy-efficient performance
- Wi-Fi control available on most models
- Neat, professional installation with concealed pipework
Need help choosing the right solution?
System Guide
Choosing the Right Split System
Room Size & Capacity
Getting the right capacity is critical. A split system that's too small will run constantly and struggle to reach temperature, while one that's too large will short-cycle and waste energy. We perform accurate heat load calculations based on your room dimensions, insulation, window area and orientation to recommend the ideal capacity — typically ranging from 2.5kW for bedrooms up to 9kW+ for large living areas.
Inverter vs Non-Inverter
Inverter split systems are the modern standard. Unlike older non-inverter models that switch on and off at full power, inverter systems continuously adjust their compressor speed to maintain your set temperature with minimal energy fluctuations. This means lower electricity bills, quieter operation and more consistent comfort. We exclusively recommend and install inverter models.
Indoor Unit Placement
The position of your indoor unit significantly impacts performance and comfort. We consider airflow patterns, furniture placement, room layout and aesthetic preferences when recommending the best location. High-wall mounting is most common, but floor-standing or bulkhead options may be better in certain rooms.
Outdoor Unit Considerations
The outdoor unit (condenser) needs adequate airflow and clearance for efficient operation. We carefully select locations that minimise noise impact on neighbours, avoid direct afternoon sun where possible, and comply with any body corporate or council requirements. We can also install noise-reducing bases if needed.
Why Split Systems
Benefits of a Split System
Affordable to Install
Split systems are one of the most cost-effective air conditioning options, with installation typically completed in a single day.
Energy Efficient
Modern inverter split systems have high energy star ratings, keeping running costs low while delivering powerful performance.
Zone Control
Cool or heat only the rooms you're using, rather than conditioning your entire home — saving energy and money.
Quiet Operation
Indoor units operate as quietly as 19dB — barely louder than a whisper — perfect for bedrooms and living areas.
Year-Round Comfort
Reverse-cycle technology provides both cooling and heating from a single unit, ideal for Melbourne's four-season climate.
Smart Control
Many models offer Wi-Fi connectivity, allowing you to control your system from anywhere using your smartphone.
Speak with one of our specialists today
Why Us
Why Choose Polygon BG Air & Electrical
Licensed Technicians
Fully licensed and qualified HVAC and electrical professionals you can trust.
Honest Pricing
Transparent quotes with no hidden fees. You'll know exactly what you're paying.
Fast Turnaround
Quick response times and efficient installations to minimise disruption.
Melbourne-Wide Service
Covering all Melbourne metro, inner suburbs and surrounding areas.
HVAC & Electrical In One Place
One team for all your heating, cooling and electrical needs.
Workmanship Guarantee
Every job backed by our workmanship guarantee for your complete peace of mind.
Ready to get started?
Reviews
What Our Customers Say
"Had a Daikin split system installed in our bedroom. The Polygon BG team were fantastic — on time, clean and explained everything. The unit is whisper quiet. Love it!"
Lisa W.
1 week ago
"Great experience. Got two split systems installed in our apartment. The technicians were professional and the pricing was very competitive. Would definitely recommend."
Tom R.
3 weeks ago
"Polygon BG helped us choose the right size system and the installation was flawless. The aircon works perfectly and looks neat on the wall. Very happy!"
Karen S.
2 weeks ago
FAQ
Frequently Asked Questions
Get Your Split System Installed Today
Contact Melbourne's split system specialists for a free, no-obligation quote. Fast installation, quality workmanship, all major brands.