Note: Solar Choice is not affiliated with LG air conditioners or any other manufacturer and aims to provide an unbiased review for consumers in Australia.
At a Glance: LG Air Conditioners – Score: 4.5 out of 5 (Excellent)
LG’s WS and WH Series split systems score 4.5 out of 5 overall, placing the brand among Australia’s leading performers for energy efficiency, technology, and local service. Solar Choice has developed an independent & transparent Air Conditioning Score Card to evaluate all the air conditioners available on the market:
Brand Reputation & Reliability – 4.5 / 5:
LG has operated in Australia for more than 25 years, earning a strong reputation for dependable inverter technology and quiet operation.
Australian Presence & Support Infrastructure – 5 / 5:
LG Electronics Australia (ABN 98 064 531 264) maintains a Sydney head office, spare-parts warehouse, and national service network offering full manufacturer-backed support.
Warranty Strength & Transparency – 4.5 / 5:
All split systems include five years parts and labour plus a further five-year limited compressor warranty (parts only), exceeding Australia’s standard coverage.
Innovation & Smart Technology – 4.5 / 5:
Built-in Wi-Fi, the LG ThinQ™ app, voice control, and energy-tracking tools put LG among the most advanced brands for connected comfort.
Customer Satisfaction & Review Consistency – 4 / 5:
Feedback on independent review platforms highlights quietness, design, and ease of use, with minor complaints about app connectivity after software updates.
Overall:
LG’s split systems are quiet, efficient, and feature-rich, supported by a strong local presence and extended compressor warranty. With balanced performance and technology, LG’s 4.5 / 5 Solar Choice Scorecard rating confirms it as a dependable premium option for Australian homes.
Compare quotes from local, reputable Air Con installers
Overview of LG – Company Background
LG Electronics is a South Korean brand founded in 1958 and active in Australia for more than 25 years. The company operates directly through LG Electronics Australia Pty Ltd, based in Sydney, providing technical support, warehousing, and authorised service.
LG’s split systems are positioned in the mid-to-premium market, combining sleek design, low noise, and integrated smart controls. The brand performs strongly across independent review platforms for energy efficiency and reliability.
To learn more about home cooling choices, see Solar Choice’s air conditioning and reverse-cycle guides.
LG Air Conditioner Range, Efficiency and Performance
LG’s Australian split-system portfolio consists of the WS Smart Series and WH High Efficiency Series.
Both use R32 refrigerant and the LG Smart Inverter Compressor™, but the WS range prioritises affordability and broad capacity options, while WH models deliver higher efficiency, quieter operation, and enhanced air purification.
WS Smart Series
The WS Smart Series is LG’s main residential range, designed for reliable comfort and affordability. All models use LG’s Dual Inverter Compressor with built-in Wi-Fi, Jet Cool fast cooling, and Auto Clean functions. Smaller units like the WS09TWS and WS12TWS are ideal for bedrooms or small living spaces, offering whisper-quiet operation and strong efficiency. Larger models such as the WS24SL are better suited to open-plan areas, providing powerful airflow and optional ioniser filtration for improved indoor air quality.
| Model | Power Capacity | Efficiency Star Rating* | Indoor Noise (dB) | How It Compares |
|---|---|---|---|---|
| WS09TWS | 2.6 kW Cool 3.2 kW Heat | 4.5 Stars Cool 5 Stars Heat | 19 | Efficiency above market average and among the quietest small units available in Australia. |
| WS12TWS | 3.4 kW Cool 4.0 kW Heat | 3 Stars Cool 3.5 Stars Heat | 27 | Typical efficiency for this size range but quieter than many mid-range competitors. |
| WS18TWS | 4.8 kW Cool 5.9 kW Heat | 2 Stars Cool 2.5 Stars Heat | 31 | Slightly below average efficiency for larger units, though noise remains better than most 5 kW systems. |
| WS24TWS | 6.3 kW Cool 7.3 kW Heat | 2 Stars Cool 2 Stars Heat | 34 | Efficiency in line with the market average for 7 kW systems; indoor noise is moderate for its capacity. |
| WS24SL | 7.1 kW Cool 7.7 kW Heat | 4 Stars Cool 3 Stars Heat | 27 | Higher efficiency than typical 7 kW competitors and notably quieter under load. |
* Star ratings from the Australian Government Energy Rating Register and show efficiency under test conditions — higher stars mean lower running costs.
WH High Efficiency Series
The WH Series enhances efficiency and indoor air quality through advanced filtration and quieter airflow — ideal for premium households or energy-conscious buyers.
| Model | Power Capacity | Efficiency Star Rating* | Indoor Noise (dB) | How It Compares |
|---|---|---|---|---|
| WH09SK-18 | 2.5 kW Cool 3.2 kW Heat | 5 Stars Cool 3 Stars Heat | 22 | Among the most efficient small-capacity units in Australia and quieter than nearly all peers in its size class. |
| WH12SK-18 | 3.5 kW Cool 4.0 kW Heat | 4.5 Stars Cool 2.5 Stars Heat | 26 | Above-average efficiency with moderate noise levels; strong balance between performance and price. |
| WH18SL-19 | 5.0 kW Cool 6.0 kW Heat | 4.5 Stars Cool 2.5 Stars Heat | 27 | High efficiency and quiet for a 5 kW unit, placing it well above market average for comfort and energy use. |
| WH24SL-18 | 7.1 kW Cool 8.0 kW Heat | 3.5 Stars Cool 2 Stars Heat | 30 | Average efficiency for large spaces but quieter and more refined airflow than most similar-capacity models. |
| WH30SR-18 | 8.5 kW Cool 9.0 kW Heat | 3 Stars Cool 2.5 Stars Heat | 33 | Typical efficiency for high-capacity systems; still operates more quietly than many competitors in its class. |
| WH34SR-18 | 9.4 kW Cool 10.3 kW Heat | 3 Stars Cool 2.5 Stars Heat | 33 | Comparable efficiency to leading premium 9–10 kW models, maintaining strong reliability and low noise. |
* Star ratings from the Australian Government Energy Rating Register and show efficiency under test conditions — higher stars mean lower running costs.
How Much Does an LG Air Conditioner Cost?
| Capacity | Typical Installed Price | Example Models |
|---|---|---|
| 2.5 kW | $1,900 – $2,700 | WS09TWS / WH09SK-18 |
| 5.0 kW | $2,600 – $3,200 | WS18TWS / WH18SL-19 |
| 7.1 kW | $3,200 – $3,800 | WS24SL / WH24SL-18 |
This excludes rebates you might be available for through state schemes like the NSW Energy Savings Scheme, VIC Energy Upgrade discount and SA Reps Scheme.
Important note: Prices vary by installer, location, and site conditions.
Compare quotes from local, reputable Air Con installers
LG Warranty for Australian Customers
LG provides a 5-year parts and labour warranty on all high-wall split systems sold in Australia, covering both indoor and outdoor units when installed by a licensed technician in a residential property.
An additional 5-year limited warranty covers the Smart Inverter Compressor (parts only), giving ten years of compressor protection. Labour, refrigerant, and consumables are excluded from the extended term.
Warranty claims are managed by LG Electronics Australia and carried out by authorised service agents. Service is free within metropolitan areas; regional sites may incur a travel fee. The warranty applies to residential use only and is not transferable.
Exclusions include incorrect installation, storm or pest damage, corrosion, power surges, and lack of routine maintenance such as filter cleaning or ensuring airflow around the outdoor unit.
See LG’s official Australian policy here.
Consumer Takeaway: LG’s warranty is stronger than average, combining a decade of compressor coverage with transparent terms and a reliable national support structure.
Pros and Cons of LG Air Conditioners
| Pros | Cons |
|---|---|
| High efficiency and low-noise performance | Premium price point |
| Built-in Wi-Fi and smart controls | App performance can vary |
| 10-year compressor coverage | Limited ducted options |
| Excellent Australian service network | Outdoor units slightly larger than average |
Conclusion: Our Verdict on LG Air Conditioners
LG’s WS and WH Series provide efficient, quiet, and smart-connected comfort for Australian homes. Their combination of advanced inverter control, integrated Wi-Fi, and strong local warranty support makes LG a top-tier choice in the mid-to-premium segment.
With a 4.5 / 5 Solar Choice Scorecard rating, LG offers one of Australia’s most balanced air-conditioning options for efficiency, technology, and after-sales support.
For official energy ratings and system-sizing advice, visit the Australian Government Energy Rating Register and Your Home Guide.
Compare quotes from local, reputable Air Con installers
- Running Cost of Air Conditioners – Explained - 7 October, 2025
- Air Conditioner Rebate South Australia: What You Need to Know - 19 September, 2025
- Air Conditioner Rebates in Queensland: What You Need to Know - 19 September, 2025
