Office deep clean vs regular cleaning: what is the difference and which do you need?

Updated 6 November 2026 · By the Commercial Office Cleaners team

Short answer: Regular office cleaning maintains a standard through frequent visits covering bins, desks, touch points, washrooms, kitchens and floors. A deep clean is a one-off, more intensive clean that reaches high-level surfaces, under and behind furniture, inside appliances and limescale in washrooms. Most offices need regular cleaning as the base, plus a deep clean once or twice a year or when starting a new contract.

What each one covers

Regular cleaning keeps an office clean. A deep clean makes it clean again after dirt has built up in places routine visits cannot reach. They are not alternatives: a deep clean without regular cleaning soon fades, and regular cleaning without periodic deeper work slowly lets hidden dirt accumulate.

Task	Regular cleaning	Deep clean
Empty bins and recycling	Every visit	Yes
Desks, surfaces and touch points	Every visit	Yes, in more detail including chairs and desk legs
Washroom clean and disinfect	Every visit	Yes, plus full descale of tiles, taps and urinals
Kitchen surfaces and sinks	Every visit	Yes, plus appliances inside and out
Vacuum and mop	Every visit, open areas	Yes, including under and behind furniture and edges
High-level dusting	Monthly at best	Yes, including lights, vents and tops of units
Skirting boards, doors and frames	Monthly	Yes, throughout
Carpet extraction	Not included	Often added as part of the job

Signs your office needs a deep clean

Dust visible on top of partitions, cabinets and light fittings
Grey edges along skirting boards and in carpet corners
Limescale on taps and urine scale or smells in washrooms
Sticky or stained fridges, microwaves and dishwashers
Darkened traffic lanes in carpet tiles
The office has been empty or lightly used for a long period
You are starting with a new cleaning company after poor standards

How often you need each

Regular cleaning frequency depends on use: most offices with daily occupancy need washrooms, kitchens and bins cleaned daily or at least three times a week. Deep cleans are usually needed once or twice a year, often timed around a summer or Christmas shutdown. Very busy sites such as contact centres, or offices with many visitors, may benefit from quarterly deep cleans.

If your regular specification includes good monthly and quarterly periodic tasks, such as high-level dusting and appliance cleaning, the need for separate deep cleans falls.

Cost comparison

Regular cleaning is priced on hours, typically £18 to £30 per cleaner hour outside central London, and quoted as a monthly figure. A deep clean is priced per job, typically £200 to £400 for a small office of around 100 m² and £400 to £800 for around 250 m², because it needs a larger team for a concentrated period. Many companies offer a reduced rate on an initial deep clean when it starts a regular contract. Over a year, two deep cleans typically add only a modest amount to the total cleaning budget of an office with a regular contract, while making a visible difference to how the space looks and feels.

Planning a deep clean around your team

Book it for an evening, weekend or shutdown so staff are not disrupted
Ask staff to clear desks and take home personal items
Clear the fridge of anything people want to keep
Tell the cleaners about sensitive equipment and restricted areas
Agree a walk-through afterwards so any missed items are put right

What a deep clean usually does not include

A deep clean is thorough, but some jobs need different equipment, skills or access and are normally priced separately. Agree these in advance so there is no disappointment on the day.

External window cleaning above ground level, which needs water-fed poles or powered access
Carpet extraction and hard floor stripping or resealing, unless specifically added
Cleaning inside IT equipment, servers or comms cabinets
Ductwork, extraction canopies and inside ventilation systems
Upholstery cleaning of sofas and fabric chairs
Removal of furniture, old equipment or bulky waste
Specialist disinfection after a known outbreak

Building deeper tasks into a regular contract

One way to reduce the need for separate deep cleans is to build periodic tasks into the regular specification. Each visit includes a small amount of extra time that rotates through deeper jobs, so that across a month every area gets attention. For example, Monday might include inside the fridge and microwave, Tuesday skirting boards on one floor, Wednesday high-level dusting in meeting rooms, and so on.

This approach spreads cost evenly, keeps the office closer to deep-clean standard all year and makes problems visible earlier. It does need a clear rota written into the specification and checked by the supervisor, otherwise periodic tasks are the first thing to be dropped when a cleaner is short of time.

Approach	Best for	Trade-off
Regular cleaning plus one or two deep cleans a year	Most small and medium offices	Some build-up between deep cleans
Regular cleaning with a periodic task rota	Busy offices and client-facing sites	Slightly higher monthly cost
Deep cleans only, no regular contract	Rarely used offices or storage space	Standards drop quickly between visits