Get your home comfortable fast with a professionally installed split system air conditioner. FMZ Electrical supplies, installs, services and repairs energy-efficient inverter split systems across Sydney and the Hills District. Every unit is sized correctly, wired to its own circuit and installed to manufacturer standards, so your warranty stays valid.
Split System Installation Sydney
Split System Air Conditioning, Installed by Licensed Electricians
Split System Installation, Repairs & Servicing
Complete Split System Air Conditioning Services
Our technicians specialize in the full lifecycle of your cooling units. Whether it’s a scorching summer day or a chilly winter night, we ensure your Sydney split system performs at peak efficiency.
Common Split System Issues We Handle
Unit not cooling or heating effectively
Strange noises or vibrations during operation
Leaking water or refrigerant gas smells
Faulty thermostats and electrical sensors
System failing to power on or tripping breakers
Dirty filters and airflow blockages

Why Choose FMZ Electrical for Your Split System?
Available Day or Night
Electrical and HVAC issues don’t follow a 9-to-5 schedule. Our team is ready to assist with emergency split system repairs 24/7, ensuring you never have to suffer through Sydney’s extreme weather.
Fully Licensed & Equipped
We are fully qualified ARC-licensed technicians. We arrive with a fully stocked mobile workshop, carrying the latest diagnostic tools and genuine replacement parts to fix your system on the spot.
Safety Comes First
Every split system installation in Sydney we perform adheres to strict Australian safety standards. We conduct thorough electrical safety checks to protect your property and ensure long-term unit reliability.
Clear, Upfront Communication
We provide honest advice and transparent pricing before any work begins. No hidden fees—just professional service and expert recommendations tailored to your specific cooling needs.
Rapid Response Times Across Sydney
Our local presence allows us to reach your doorstep quickly. We pride ourselves on punctuality and efficient service, minimizing downtime so you can get back to your comfort.
Residential & Commercial Split System Solutions
Tailored Air Conditioning for Every Sydney Property
For Homeowners
Energy-efficient bedroom and lounge installs
Multi-head split system configurations
Routine seasonal maintenance
Quiet operation for better sleep
Smart-home WiFi integration
For Businesses
Commercial-grade high-capacity units
Server room cooling solutions
Server and office maintenance plans
Scheduled filter cleaning and sanitizing
Rapid response for retail and office spaces
Whether it’s a small home fault or a major outage, we’ll restore power safely and efficiently.
How Our Installation & Repair Process Works
Maintenance Tips for Your Split System
Clean your indoor filters every 3 months for better air quality.
Keep the outdoor condenser unit clear of leaves and debris.
Schedule an annual professional service to check refrigerant levels.
Call FMZ Electrical immediately if you notice sparks or a burning smell.


Why Sydney Locals Trust FMZ Electrical
Local Sydney Knowledge and Expertise
Energy-Efficient Split System Recommendations
Rapid 24/7 Emergency Repair Service
Safe, Licensed, and Insured Technicians
Transparent Quotes and Honest Communication
Areas We Service
We provide expert split system services across all major Sydney regions:
- Dural
- Glenhaven
- Cherrybrook
- Castle Hill
- Galston
- Kenthurst
- Middle Dural
- Arcadia
- West Pennant Hills
- Baulkham Hills
- Round Corner
- Glenorie
- Hornsby
- and surrounding suburbs.
No matter where you are — North Shore to the Hills, Parramatta to Penrith — FMZ Electrical has you covered.
Split System Installation, Repairs & Servicing in Sydney

A split system air conditioner is the most cost-effective way to cool and heat individual rooms. FMZ Electrical installs inverter split systems in bedrooms, living areas, granny flats, home offices and shops across Sydney and the Hills District. We look after the whole job, from sizing and unit placement to the dedicated electrical circuit, isolator and final commissioning.
Wall-Mounted, Multi-Head & Floor Console Splits
Not every room suits a standard wall unit. We also install multi-head systems, which run several indoor units from one outdoor condenser, as well as floor consoles for rooms with limited wall space and cassette units for shops and offices.
Split System Repairs
Blowing warm air, leaking water, making noise or not turning on? We diagnose and repair split systems from all major brands, and we fix the electrical faults that often stop units working, such as failed isolators, tripping circuits and damaged wiring. If a repair won’t pay off, we’ll tell you honestly and quote a replacement.
Ducted or Split?
If you want to cool most of the house, compare a split system with ducted air conditioning installation. We’re happy to quote both so you can choose with confidence.
Useful resource: Energy Rating website.
Frequently Asked Questions
How long does a split system installation take?
A standard back-to-back split system installation, where the indoor and outdoor units sit on opposite sides of the same wall, usually takes 3 to 5 hours. Installs with longer pipe runs, a roof-mounted or upper-storey outdoor unit, or new electrical circuits can take a full day.
What size split system do I need?
As a rough guide, a bedroom of 10 to 20m² needs about 2.5kW, a living area of 20 to 40m² needs 5 to 7kW, and large open-plan spaces need 8kW or more. Ceiling height, insulation, window size and sun exposure all affect sizing. We calculate the correct capacity on site so you don’t pay for an oversized unit.
How much does split system installation cost in Sydney?
Supply and standard installation of a quality inverter split system generally ranges from about $1,800 for a 2.5kW unit to $3,500 or more for a 7 to 8kW unit. Non-standard installs, multi-head systems and dedicated circuits are quoted individually. These are typical Sydney industry figures only. Costs can vary depending on your property and requirements, and your exact price is confirmed in writing after a free inspection.
How often should a split system be serviced?
We recommend a professional service every 12 months, and cleaning the filters every few weeks during heavy use. Regular servicing keeps the unit efficient, prevents water leaks and bad smells, and extends its life.
Get Help Now
If you need a professional split system installation in Sydney or an urgent repair, contact our expert team today for a fast, free quote.

West & North Sydney’s Trusted Emergency Electricians & Switchboard Upgrade Specialists