There is no industry definition of a deep clean. One company means two extra hours on the same routine. Another means every horizontal surface in the house, moved and cleaned underneath. Since the words cost nothing, the only way to compare two quotes is to make both companies write down the list.
Ours starts with the places that never get touched on a regular visit: baseboards and the top edge of door casing, light switch plates, the tops of door frames, ceiling fan blades, vent and return covers, and the tracks under every sliding door and window. None of it shows in a photograph. All of it is what people notice when they run a hand along something.
In the kitchen, deep means inside: the microwave, the oven door glass, the refrigerator shelves and the seal around the door, the range hood filter, the backsplash grout, and behind the appliances that roll out. In the bathroom, it means the grout lines, the shower door track, the underside of the toilet base, the exhaust fan cover, and the mineral buildup on fixtures, which needs a product and dwell time rather than pressure.
Ask a prospective cleaner three questions: what is on your deep-clean checklist in writing, do you move furniture and appliances or clean around them, and what is specifically excluded. A company that has real answers has a system. A company that says it does everything is telling you it has not thought about it.
One practical note for Jackson Hole homes: schedule the first deep clean before you start recurring service, not after. A recurring visit is priced to maintain a clean house. Starting recurring service on a house that has not been reset means paying maintenance rates for catch-up work, and it takes months to get ahead.