BATTERY LAB
Hybrid Battery, Gearbox, Aircon Repair Experts
Best Aircon Repair & Overhaul Expert
Dedicated Warranty in Singapore
We diagnose, repair and overhaul aircon for cars

We are Singapore
Experts in Car Aircon Repair & Overhaul
Rated 5 stars on Google ★ ★ ★ ★ ★
Singapore Best Aircon Repair, Overhaul and Servicing
Same-day diagnostics, Leak checks, Major repairs with transparent pricing & warranty
Toyota | Lexus | Volkswagen | Audi | Porsche | Bentley | Honda | Nissan | Mercedes | BMW Aircon

Why Choose Our Aircon Repair & Overhaul Service
Car Aircon Issues?
⚠️ Watch Out for These Warning Signs
⚠️ Signs You May Need a Aircon Repair or Overhaul:
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Air not cold at idle
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Cooling fades after gas top up
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Strange noises when AC is on
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Musty smell or foggy windows
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Uneven cooling
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Wet passenger floor mats
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Dashboard warning lights
💡 Tip: Catch issues early — saves cost and damage later.
Discover Our Aircon Repair Process
Discover what's included in our comprehensive gearbox repair & gearbox overhaul service. From diagnostic scan to warranty backed reinstallation, we've got you covered in Singapore.

Initial Inspection & Diagnosis
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Comprehensive checks of refrigerant levels, pressure readings, compressor health, and airflow.
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Use of advanced tools (UV leak dye, nitrogen pressure test, computer scan) to pinpoint issues quickly.
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Same-day diagnostic slots so you don’t wait days for answers.

Detailed Repair Plan & Cost Estimate
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A clear written repair plan with parts, labour, and time estimate before any work starts.
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Side-by-side options (OEM vs aftermarket parts, repair vs replace) so you can decide confidently.
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WhatsApp photos/videos of identified faults for full transparency.
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Expert Repair & Quality Check
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Genuine/OEM parts or approved equivalents fitted by technicians trained in petrol, hybrid & EV HVAC systems.
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Related components (filters, drains, electronics) serviced to prevent repeat failures.
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Vent temperature tested at idle and on the road, with a before/after report.
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Warranty on parts & labour registered, and your car returned clean and ready with crisp, cold air.
Frequently Asked Questions (FAQ) About Aircon Repair, Overhaul & Servicing
❓ What are the signs I need an aircon repair or overhaul?
You may need an aircon repair or overhaul if you notice:
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Air not cold, especially when stationary
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Cooling fades quickly after gas top-up
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Strange noises (clicking, squealing) when AC is on
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Musty smells or foggy windows
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Uneven cooling (one side cold, the other warm)
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Wet passenger floor mats from clogged drains
If left unchecked, minor AC issues can escalate into costly repairs or full system failure.
❓ Why is my AC cold when driving but warm at idle?
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Often due to a weak compressor or faulty condenser/radiator fan
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Confirmed by checking system pressures at idle and at higher RPMs
We recommend booking a diagnosis early to prevent further damage.
❓ What’s the difference between aircon servicing and an overhaul?
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Servicing: Filter replacement, cleaning, gas top-ups, minor fixes
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Repair: Fixing specific components such as expansion valves, O-rings, or blower motors
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Overhaul: Major parts like compressor, evaporator, or condenser replaced when beyond repair
Our team will advise the most cost-effective solution based on your symptoms.
❓ How long will the repairs take?
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Most jobs: completed same day once parts are in stock
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Evaporator/cooling coil replacements: may take 1–2 days (requires dashboard removal)
❓ Do you also service hybrid and EV aircon systems?
Yes. Our technicians are trained in diesel, petrol, EV and hybrid HVAC:
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Hybrid compressor repairs
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High-voltage safety procedures
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Heat-pump HVAC systems used in modern EVs
❓ What is the lifespan of a car air conditioning system?
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With proper servicing, major AC components last 5–7 years
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Neglecting maintenance can shorten lifespan and cause premature compressor/evaporator failure
❓ Is recharging necessary?
Yes. Recharging may be needed if refrigerant levels drop due to:
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Normal wear and tear
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Leaks in hoses, O-rings, or coils
We check pressures and recharge with R134a or R1234yf as needed.
❓ Can a faulty AC system affect overall car performance?
Yes. A failing AC system can:
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Put extra load on the engine
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Reduce fuel efficiency
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Affect overall driving comfort
Repairing early ensures both comfort and efficiency.
❓ Do you provide warranties for aircon repairs?
Yes. We provide warranty on both parts and labour.
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Duration depends on service or component replaced
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All warranty details are confirmed in writing
❓ Is it safe to drive with a malfunctioning aircon?
Generally safe, but not recommended:
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Singapore’s hot climate makes it uncomfortable and unsafe for long drives
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Certain AC faults may strain engine components
It’s best to get your AC repaired promptly.

Our Trusted Customer Repair Testimonials
Strong Customer Satisfaction Backed By Reviews


Best Aircon Repair, Overhaul and Servicing Experts
We service all brands
Toyota | Honda | Nissan | Mazda | Mitsubishi
Subaru | Suzuki | Lexus
BMW | Mercedes-Benz | Audi | Volkswagen | Volvo | Peugeot | Citroen
Renault | Skoda | MINI | Porsche
Hyundai | KIA | Ford | Chevrolet
Best Petrol & Diesel Car Aircon Repair in Singapore
Most petrol and diesel cars use a belt-driven compressor system powered directly by the engine. Common issues include:
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Refrigerant leaks from hoses, O-rings, or condenser
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Compressor clutch or pulley failure (causing squealing noises)
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Cooling coil/evaporator leaks leading to weak cooling
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Condenser blockages or damage from road debris
At Battery Lab, we service all major brands (Toyota, Honda, Nissan, Hyundai, BMW, Mercedes-Benz and more) using OEM or high-quality replacement parts. Our technicians ensure fast diagnosis and same-day repairs for most petrol and diesel vehicles.
📞 Contact us now for a complimentary diagnostic before it escalates into costly damage.
Best Hybrid Car Aircon Repair & Overhaul in Singapore
Hybrid vehicles like the Toyota Prius, Honda Vezel, and Lexus RX use electric compressors instead of traditional belt-driven ones. These require special compressor oil and high-voltage safety handling.
Common hybrid AC issues we fix include:
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Electric compressor failures (no cooling or intermittent cooling)
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High-voltage insulation faults and system shutdowns
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Cooling coil and condenser leaks
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Musty odours caused by evaporator mold growth
📍 Our team is trained in hybrid HVAC systems, ensuring safe, accurate repairs and the use of the correct refrigerants and oils for long-term reliability.
Electric Vehicle (EV) & Heat Pump Aircon Repair
Modern EVs such as the Tesla Model 3, Nissan Leaf, and Hyundai Ioniq feature heat-pump HVAC systems that not only cool the cabin but also manage battery temperature.
We specialise in:
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Heat pump refrigerant leaks
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Cabin not cooling/heating efficiently
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Faulty electric compressors and sensors
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Correct refrigerant & EV-safe oil handling
🛠️ With certified EV technicians, we restore comfort and performance safely while protecting your battery system.