When it comes to tipping a mobile car detailer, there’s no one-size-fits-all answer. Some people might choose to tip based on the quality of the service, while others may opt for a flat fee. Ultimately, it’s up to you and your own budget and preferences when deciding how much to tip. Generally speaking, most people will want to tip between 10%-20% of the total cost for their detailing job as appreciation for excellent service. If you feel that your car was detailed beyond what you expected or that they went out of their way during the detailing process, then a higher percentage would be more appropriate in those cases. However if your experience wasn't perfect or didn't meet expectations - don't feel obligated to leave an extra large gratuity! It's important that everyone is comfortable with what they're paying and happy with the results so always ask questions beforehand about services being provided and discuss any issues afterwards before attempting payment should any arise.