Harrington & Stevens Detailing, also known as H.S Detailing, is a car detailing business in Trentham, Upper Hutt, founded in 2024 by Liam and Nick. The shop is at 1/665 Fergusson Drive. Services include full interior and exterior detailing, express detailing, paint correction, premium waxing, stain removal and paint restoration. Price depends on the size and condition of the vehicle, so the business quotes each job. Customers say the cars come back thoroughly clean inside and out, that the work is careful, and that the team is easy to talk to. One customer said a car felt like new to drive. The business describes itself as Wellington's leading car detailer, and it calls the work "where efficiency meets excellence", with express options for people who need a fast turnaround. For a car owner in Trentham or the wider Hutt Valley, a local detailer means the car can be dropped off nearby.