A self-contained pet washing and grooming apparatus is disclosed. The apparatus includes a base, a top member which is a grooming compartment with a blower/dryer, side supports, a flexible side wall and a reservoir for clean and waste water. In various embodiments, water is filled through both a tube on the reservoir and from a water source such as a sink faucet. The water line is attached to a nozzle. A drain tray is placed over the base so that water used within the apparatus drains through the drain tray into the base to the reservoir. A pump is provided in the reservoir to pump water out of the base through a water exit line, for example, to a spray nozzle. The device has a power source, and is collapsible such that the drain tray, side support and grooming compartment all collapse and fit within the base. Extension legs attached underneath the reservoir are also collapsible. Optionally, the reservoir has a handle and wheels.