Back-to-Back Split System Air Conditioning Installation
Optimise your space and efficiency with our professional Back-to-Back Split System Air Conditioning Installation service. We mount indoor and outdoor units on opposite sides of a wall to create a compact, effective cooling setup that maintains both aesthetics and performance.

Our back-to-back split system installation includes :
- 2.5m standard pair coil specific to unit size
- Electrical works upto 15m cabling with isolator
- Single wall pass through
- Wall capping
- External unit sited on existing ground
Additional Extras and What’s Not Included
- Wall brackets
- Ground slabs
- Side entry installations
- Roof mounts
- Extra pair coil lengths
- Ceiling entry
Key Features of Our Back-to-Back Installation
- Pair Coil Length: Our installation includes a high-quality refrigerant pair coil of 2.5 meters, expertly routed between the indoor evaporator and outdoor condenser units.
- Electrical Cable Length: We provide up to 15 meters of electrical cabling, allowing flexibility and secure connections for your system.
- Isolator Included: Each installation features a safety isolator switch for convenient control and maintenance access.
Why Choose Back-to-Back Installation?
Back-to-back installations reduce the need for long refrigerant lines, minimising refrigerant loss and improving system efficiency. This setup is ideal for tight spaces or buildings requiring discreet unit placement, offering a clean and professional finish.
Pricing Information
- Base Installation includes the 2.5m paired coil, up to 15m electrical cable, and isolator.
- Additional Costs: Please note that extra cabling or pipework outside the standard lengths will incur additional charges, which are subject to site assessment during a professional visit. This ensures accurate estimation tailored to your installation requirements.
How to Size a Wall Split Air Conditioning Unit for Your Room
Choosing the right size for your wall split air conditioning unit is essential for optimal comfort and energy. The sizing depends mainly on the room’s area in square meters (m²) and the cooling capacity needed, measured in kilowatts (kW).
Selecting a unit too small will struggle to cool the space effectively, while an oversized unit may cycle too frequently, wasting energy and reducing lifespan. To get precise sizing, consider factors like ceiling height, insulation, sun exposure, and number of occupants.
Unit Sizes Available : 2Kw – 2.5Kw – 3.6Kw – 5Kw – 6Kw – 7Kw – 8Kw – 9Kw

