A split system is one of the simplest ways to keep a home or workspace comfortable through Adelaide’s hot summers and cold winter nights. NG Elec handles split system installation across Adelaide for homes and businesses, from a single bedroom unit to multi-head systems covering several rooms. We size each system to the space and how you use it, then mount it where it will run quietly. The electrical side, from the circuit at the switchboard to the isolator beside the outdoor unit, is done by the same team.
Whether it’s part of a renovation, a new build or time to replace a tired unit, the job starts with the room and the wiring behind it. Our installers work with trusted brands and make sure each unit is positioned correctly, sized to suit and installed to last.
Know which rooms need it?
A split system performs as well as it is sized, placed and wired, and these are the standards we hold on every job.
We match capacity to the room to avoid poor airflow and uneven cooling.
Circuit protection, isolators and testing done in-house.
We keep the job tidy, finish on time and only recommend what's necessary.
Every installation we complete is covered.
Across residential, commercial, solar and battery work.
Recognised by the industry association for electrical contractors.
Capacity is measured in kilowatts, and the right figure depends on more than floor area. Ceiling height, insulation, the amount of west-facing glass and whether the room opens onto a kitchen or hallway all change the load. A unit that’s too big cycles on and off without removing much humidity. One that’s too small runs flat out on a 40-degree afternoon and still leaves the room warm.
We measure the room and look at the glazing and insulation during the site visit, so the quote is for a unit that suits the space. If you want a bracket to check a quote against, our guide on what size split system you need for an Adelaide home sets out kW ranges by room size.
A single-head system suits one or two rooms and keeps each unit independent, so a fault only affects that room. A multi-head system suits three or more rooms where there isn’t wall or courtyard space for several outdoor units. Most residential multi-head systems run in one mode at a time, so every connected room is either heating or cooling.
| What to check | Single-head | Multi-head |
|---|---|---|
| Rooms to cover | One or two | Three or more |
| Outdoor units | One per indoor head | One for up to about five heads |
| If a fault occurs | Only that room | Every connected room |
| Heating and cooling at once | Each room chooses | One mode for all rooms |
| Sizing | Matched to one room | Sized to the combined load |
Larger homes sometimes end up with a mix: a multi-head system for the bedrooms and a separate single-head unit for the main living area. We’ll set out the options on site.
We supply and install split systems from established brands with Australian warranty and parts support. The model and the installation decide how well a system performs, so these are the things we compare with you when recommending a unit:
Running costs come down to the unit’s efficiency, how well it’s matched to the room and when you use it. A few things make the biggest difference:
Timing depends on the number of indoor heads, the pipe run and any board work, and we’ll give you the timeframe with the quote.
Older boards with ceramic fuses or no spare space often need attention first. For bigger homes adding several high-load appliances, it can be worth looking at three-phase power at the same time.
Questions about your switchboard?
We install split systems across greater Adelaide, from the eastern suburbs to the south and the Hills. That includes homes in Burnside, Unley and Mitcham, through to Marion, Holdfast Bay, Onkaparinga, the Adelaide Hills and the Fleurieu. The same team also handles residential electrical work, so lighting, power points or a smoke alarm upgrade can be done on the same visit.
A properly installed split system runs quietly and efficiently through every season, without straining your power bill or your switchboard. NG Elec handles the sizing, the installation and the electrical work as one end-to-end, hassle-free job.
