An interior deep clean is not a tidy-up with more enthusiasm. It is a longer appointment, booked because the cabin has reached the point where 30 minutes will not move the needle.
Typical triggers: a car that has not been cleaned inside for a year or more, a house move or building work, a growing family, a dog, an end of lease, or a sale where the inside is the first thing a buyer notices.
On Valetly you get that time in two forms. The Interior Valet (£119, ~75 minutes) is a dedicated cabin appointment.
The Signature Detail (£269, ~210 minutes) is the longest appointment on the platform and the honest choice when a car interior has years on it rather than months.
The work happens at your address, on the car where it stands, and finishes with before-and-after photos on your booking. If the cabin is only moderately tired, car interior cleaning is the lighter and cheaper route.