The labor cost to replace a kitchen faucet cartridge can vary depending on your location, the plumber's rates, and the complexity of the job. On average, you can expect to pay around $50 to $150 for labor to replace a kitchen faucet cartridge.
Keep in mind that this is just an estimate, and the actual cost may be higher or lower depending on various factors. Some plumbers charge a flat rate for certain tasks, while others may charge an hourly rate. Additionally, if there are any complications during the process or if the plumber needs to source specific replacement parts, it could also impact the total cost.
To get an accurate labor cost for your specific situation, it's best to reach out to local plumbers and request quotes. They can assess the job's requirements and provide you with a more precise estimate based on your location and the type of kitchen faucet you have.