Exterior detailing involves cleaning and restoring the paint, trim, windows, wheels, tires, and other visible components on a vehicle's exterior. A wide array of detailing products and techniques are used, based on surface type and condition. A decontamination is followed by machine polishing, final finishing, and sealing to enhance and protect the vehicle from nature's elements.
Interior detailing involves a deep cleaning of the cabin. Vehicle interiors of the last 50 years comprise a variety of materials such as synthetic carpet upholstery, vinyl, leather, carbon fiber composites, plastics and more. This necessitates a variety of cleaning techniques and products. A thorough vacuum is followed by disinfection of all interior surfaces. Upholstery stain removal, steam cleaning and leather conditioning are performed to restore and protect the cabin from spills and stains.
How often depends on the conditions your vehicle is exposed to. A rule of thumb is to detail your car when the seasons change to restore protection. You may want to consider detailing more frequently in cold snowy areas, or if you live near the ocean. Road salts and salty air are corrosive, and can destroy unprotected vehicles.