The duration of a full auto detailing service in Guelph, ON, can vary depending on several factors, including the size and condition of the vehicle, the level of detailing requested, and the detailing provider's efficiency. On average, it may take anywhere from 2 to 6 hours for a thorough and comprehensive auto detailing session in Guelph. It's advisable to check with the specific detailing service you choose, as they can provide a more accurate estimate based on your vehicle's needs. To get an accurate estimate, I recommend reaching out to Speedvale.com directly, as they can provide precise timing based on your car's needs and the services you choose.