Air conditioning faults in Nairobi tend to cluster around a handful of common issues: low refrigerant gas, dirty filters and coils, faulty compressors, and electrical or control board failures. The cost of fixing any of these varies significantly depending on the type of unit and the scale of the fault.
AC repair cost in Nairobi generally ranges from KES 2,000 for a basic service call to over KES 20,000 for compressor replacement on larger units. Split units and window units also price differently, since split systems involve both an indoor and outdoor component that need to be accessed separately.
AC Repair Cost Breakdown
| Issue | Estimated Cost (KES) |
|---|---|
| General cleaning/servicing | 2,000 – 4,500 |
| Filter replacement | 1,000 – 2,500 |
| Refrigerant gas top-up | 3,500 – 8,000 |
| Fan motor replacement | 3,000 – 7,000 |
| Capacitor replacement | 2,000 – 4,000 |
| PCB/control board repair | 5,000 – 12,000 |
| Compressor replacement | 12,000 – 25,000 |
| Refrigerant leak detection and repair | 4,000 – 9,000 |
Factors That Influence the Cost
Unit capacity (tonnage or HP rating) affects almost every repair cost category, since larger units use larger, more expensive components and require more refrigerant.
Split vs window units repair differently — split units generally cost more to service and repair because of the added complexity of the outdoor condensing unit and the refrigerant lines connecting it to the indoor unit.
Refrigerant type matters too. Older systems using R22 gas are becoming more expensive to service as the gas itself becomes less commonly stocked, while newer systems using R410A or R32 are generally more straightforward and often cheaper to top up.
How long the unit has gone without servicing has a real impact. A unit that's been running for years without a clean can develop coil and filter buildup severe enough to strain the compressor, turning a routine service into a more involved repair.
Signs an AC Unit Needs Repair
- Weak or warm airflow despite the unit running
- Unusual noises from either the indoor or outdoor unit
- Ice forming on the indoor coil or refrigerant lines
- A noticeable rise in electricity bills without a change in usage
- Water leaking from the indoor unit
- The unit taking much longer than usual to cool a room
Frequently Asked Questions
How much does it cost to service an AC unit in Nairobi? Basic servicing, including cleaning and a filter check, typically costs between KES 2,000 and KES 4,500 depending on the unit type and accessibility.
Is refrigerant gas top-up a permanent fix? Not on its own. If a unit is low on gas, there's usually a leak somewhere in the system. Topping up without finding and sealing the leak means the gas will run low again within months.
How often should an AC unit be serviced? Units used daily benefit from servicing at least twice a year. Units used occasionally can often go a full year between services without issues.
Does AC repair cost more for commercial units than residential ones? Generally yes, since commercial units tend to be larger, run longer hours, and sometimes involve more complex ducted systems.