Regular clean or deep clean: what the words actually mean

Almost every cleaning company sells a regular clean and a deep clean, and almost none of them mean quite the same thing by either. There is no standards body for this. Nobody is checking.

So the useful question is never whether something counts as a deep clean. It is what is on the list.

What a regular visit is built to do

A regular clean is maintenance. It is designed around the assumption that it happened last week and will happen again next week, and its job is to stop the place drifting: surfaces, floors, washrooms, kitchens, bins, and whatever else is on the agreed list.

The defining constraint is time. A regular visit is priced against a fairly predictable number of hours, which means the work is chosen to fit them. Anything that takes a long time and only needs doing occasionally gets left out — not through carelessness, but because including it would either blow the schedule or thin out everything else.

That is the honest shape of it. A regular clean keeps a maintained space maintained. It is not designed to recover a space that has not been.

What a deep clean adds

A deep clean is the work that a regular visit structurally cannot reach. Usually that means one or more of three things: moving something, taking something apart, or leaving a product on a surface long enough to work.

• Moving: under and behind appliances, furniture that normally stays put, floor edges and skirting the vacuum passes at arm's length.
• Dismantling: extract fan covers, appliance interiors and seals, shower screens and their tracks, tap fittings and aerators.
• Dwell time: limescale, grease and staining that need a product left on them rather than wiped across them.

It is also usually the only time anyone gets above head height or below knee height with any seriousness.

The things that are almost always deep-clean only

These are consistent enough across both offices and homes to be worth knowing by name, because they are the ones people assume are included and are surprised to find are not.

• Inside the oven, the microwave and the fridge, including seals and the drip tray.
• Behind and underneath large appliances.
• Interior glass and window frames, and the tracks below them.
• Extract fans, vents and grilles.
• Light fittings and the tops of doors, frames and cupboards.
• Carpet extraction, and hard floor stripping or resealing.
• Inside cupboards and drawers, rather than the fronts of them.

How often a regular schedule needs one behind it

This is where honest answers get vague, and the vagueness is real rather than evasive. It depends on how heavily the space is used, how well it was cleaned before the schedule started, and what the regular visits actually cover.

The general shape most places settle into is that a well-maintained space on a consistent regular schedule wants a deep clean occasionally rather than often, and a space that has been neglected wants one first, before any regular schedule will look like it is working. Starting a weekly clean in a place that needed a reset is the most common reason people conclude their cleaner is not very good.

What to actually ask

Skip the labels. Ask for the task list, and ask which tasks are every visit and which are periodic. Then ask what is excluded entirely.

If a company can answer that in writing, the words on the front of the quote stop mattering. If it cannot, the words on the front of the quote were never going to tell you anything.