Contract cleaning is an ongoing agreement to clean business premises to a written specification for a fixed monthly fee. Instead of booking cleans one at a time, you agree the areas, tasks, frequencies and standards up front, and a provider delivers them continuously — carrying the staff, cover, equipment, insurance and compliance for a single predictable price.
What contract cleaning means
Contract cleaning is the routine, continuous cleaning of a workplace under a formal agreement, as opposed to one-off or 'call when you need it' cleaning. The contract sets out exactly what is cleaned, how often, and to what standard, so both sides know what a good clean looks like. The provider employs and manages the operatives, supplies the equipment and consumables, and takes on the health-and-safety and vetting obligations that come with cleaning a business site.
It is the model behind almost all commercial cleaning in the UK — offices, warehouses, clinics, schools and retail units are typically cleaned under contract rather than booked job by job.
What a cleaning contract includes
A contract bundles everything needed to keep the premises clean into one arrangement: the named cleaner's labour and a named relief for cover, supervision and quality audits, machines and chemicals, consumables (unless you supply your own), COSHH assessments and method statements, and the insurance and accreditations your auditors ask for. You manage an outcome and a specification, not a payroll and a stock cupboard.
How contract cleaning is priced
Contract cleaning is priced as a fixed monthly fee against the agreed scope, not by the hour, so your budget is known for the year. The single biggest cost driver is labour: the statutory National Living Wage is £12.71 an hour (from April 2026), and many corporate and public-sector contracts require the voluntary Real Living Wage of £13.45 (£14.80 in London). Commercial cleaning is standard-rated for VAT at 20%. See our guide to commercial cleaning prices for worked ranges.
Contract cleaning versus ad-hoc cleaning
Ad-hoc cleaning is booked as and when — a one-off deep clean, a reactive call-out. It suits irregular needs but leaves you re-sourcing and re-briefing every time, with no guaranteed cover and no consistent standard. A contract fixes the standard, builds in cover, and removes the admin of repeat booking. The trade-off for that reliability is a commitment period, usually with a notice clause.
When contract cleaning is the right choice
If your premises need cleaning regularly — daily, several times a week, or on a fixed weekly cycle — a contract is almost always cheaper and more reliable than repeat ad-hoc bookings. It is essential where you must evidence a standard to auditors, insurers or a regulator, because the specification, COSHH data and audit records give you a documented trail. For a genuinely one-off need, ad-hoc booking is fine.