Cleaning KPIs: what to measure, and how to know the figures are true

01

What cleaning KPIs are, and where they come from

A key performance indicator (KPI) is a measurable metric that shows whether a service is meeting agreed standards. It turns a judgement, such as "the cleaning is fine", into performance data both sides can quantify and compare over time. In a commercial cleaning contract the KPIs usually sit in the service level agreement, each with a definition, a target, a measurement period and a source of evidence, and they are reviewed at regular contract management meetings between the facilities manager and the cleaning company.

No regulation sets cleaning KPIs for an ordinary workplace. The legal duty is the outcome: under the Workplace (Health, Safety and Welfare) Regulations 1992 a workplace and its furniture and fittings must be kept sufficiently clean, and washrooms clean and orderly. KPIs are how the client shows it is managing that duty when the work is outsourced, and how the provider shows it is delivering what it was paid for.

Healthcare is the exception that shows the method. In England, the NHS National standards of healthcare cleanliness 2025 set six functional risk (FR) categories, each with its own audit target score and audit frequency: from 98% and above, audited weekly, in the highest-risk areas (FR1, such as intensive care units and operating theatres) to 75% and above, audited every 12 months, in the lowest (FR6). They require a star rating for cleanliness to be displayed where patients, staff and the public can see it, and a functional area rated 3 stars or fewer, which means 4% or more below its target score, must have an improvement plan. Outside healthcare, most KPI frameworks follow the same logic on a smaller scale: measure what matters most where the risk is highest.

02

The cleaning KPIs worth measuring

Most contracts need between five and ten KPIs. Fewer and something important goes unmeasured; more and nobody reads them. The key cleaning KPIs, the metrics to track on almost any site, are these:

• Cleaning quality: audit scores from a structured cleaning audit, as the percentage of inspected elements that meet the standard, measured by room type or area. This is the KPI most clients start with, and the one most open to argument unless the audit method is agreed.
• Task completion rate: scheduled cleaning tasks and checks completed against those planned, for example washroom checks completed as a share of those scheduled. Task completion rates measure whether the agreed service delivery happened at all.
• Response time and rectification time: how quickly a reported problem is attended to and how quickly it is put right, by priority. NHS England's national standards, for example, expect a cleaning problem that raises a health and safety, patient safety or infection prevention issue to be assessed within 20 minutes and put right within 1 hour.
• Complaints and repeat failures: the number of complaints per period, and how many concern a problem already raised. Repeat failures are often more telling than the total.
• Periodic work completed: deep cleans, carpet and hard floor care, high-level dusting and window cleaning delivered against the periodic schedule.
• Staffing and cover: contracted hours delivered, and whether absences were covered. A contract short of hours will fail every other KPI eventually.
• Training and compliance: operatives with current induction, COSHH and equipment training; risk assessments and COSHH assessments in date.
• Health and safety: accidents and near misses on the contract, and how they were followed up.
• Customer satisfaction scores: a short periodic survey of building users or the client's team, used alongside the other measures rather than instead of them.

Clients sometimes also track cost per square metre across buildings. It is useful for comparing value between sites in procurement, but it is a cost measure, not a measure of cleaning performance, and it belongs in a different report. The same goes for cleaning efficiency measures such as area cleaned per hour: they help a provider optimise its cleaning operations and plan labour, but a client should judge the contract on the result.

Industrial cleaning and specialist contracts add their own measures, such as production downtime or hygiene test results in food areas. The principle is the same: pick the few performance metrics that show whether this site is safe, clean and served as agreed.

03

Defining each KPI and setting the target

Every KPI needs a written definition that both sides agree before the contract starts. For each one, set out:

1. What is measured, precisely. "Washroom checks completed" needs to say whether a check done late counts, and how late.
2. The source of the data: audit sheets, check records, the helpdesk log, the rota.
3. Who measures it, and whether the client verifies it. A provider marking its own work needs some independent check, such as joint audits.
4. The period: weekly, monthly or quarterly.
5. The target, and the level below which it counts as a failure.
6. What happens on a failure: a corrective action, a performance improvement plan, or a service credit if the contract has them.

Set targets from a baseline, not from ambition. The first month of a new contract, or the last three months of an existing one, shows what the building actually achieves, and that real-world performance is the benchmark to improve from. Where a provider runs similar sites, its results elsewhere are a useful second benchmark. A target of 100% on anything measured by human inspection will be missed, and a contract that fails a KPI every month soon stops taking it seriously. A target nobody ever misses is not measuring anything.

Weight the KPIs to the building. A school cares about washrooms after breaks and classrooms before the morning; an office with a busy reception cares about the entrance first thing; a hospital cares about its highest-risk areas above all. The same set of metrics can carry different targets in different areas.

Involve the cleaning teams. Operatives and supervisors know which tasks are hard to fit into the hours and where the building works against them. KPIs they understand and can see are far more likely to improve service quality than targets that arrive in a monthly email.

04

How cleaning KPIs are reported

Cleaning KPIs are typically reported monthly, in a short report or dashboard reviewed at a meeting between the client's facilities management team and the provider's contract manager. Setting and tracking the figures should be routine, not a scramble before the meeting. A useful report shows:

• each KPI against its target, with a simple red, amber or green status;
• the trend over several months, because quality over time matters more than any single figure;
• the reasons behind any failure, and the corrective action taken;
• open actions, who owns them and whether any are overdue;
• anything that keeps recurring, and what is being done about it.

Monthly is often too slow on its own. A missed clean on the 3rd reported on the 30th has already become a complaint. Many clients also want a short daily or weekly summary of delivery, showing what was done, what was missed and what is still open, so problems surface while they can still be fixed and the monthly figures hold no surprises.

05

When KPIs look green and the building is not clean

Every experienced facilities manager has seen a cleaning contract with good KPI performance and unhappy building users. The usual causes are:

• Measuring only inputs. Tasks completed, with no check on the result, reward visiting a room rather than cleaning it.
• Measuring only outputs. An audit score from a small, predictable sample says little about the rooms nobody inspected, or about the washroom at 2pm rather than 9am.
• Closing actions without fixing them. An audit flags an issue, an action is raised, someone marks it complete, and the same issue appears next month. Track repeat failures, not only closed actions.
• Too many KPIs. Thirty indicators on a dashboard mean the three that matter get lost.
• Self-reported data nobody checks. A provider's own figures, never verified, drift upwards.
• Stale targets. KPIs set for a building's use three years ago measure a building that no longer exists. Review them at least annually, and whenever the use changes.

The answer is balance: quality and delivery, provider-measured and client-verified, monthly trend and daily detail. Together they measure cleaning performance rather than activity, and show whether the contract is really performing.

06

Where the delivery data fails, and what SiteClara does about it

Of all cleaning KPIs, task completion is the one most often built on the weakest evidence. The figure in the monthly report is usually assembled from check sheets on doors and supervisors' notes, completed after the fact, so it cannot show when a check was done or by whom, and a missed check is rarely recorded as missed.

SiteClara records the checks at the location. A printed QR poster, with an optional NFC tag behind it, sits at each place a check is scheduled. Staff scan or tap on their own phone, with no app to install, see the checks due there, and mark each one done or explain what stopped them. The time and the named person are recorded as it happens, with a photo when one helps, and a reported issue goes onto the team's list of jobs until someone closes it.

The supervisor sees what is due, done and missed, and records the reason a check was missed. Each day they review the totals and photos, add a note and approve a report that goes to nominated management or client contacts at 8am the next morning, showing what was reported, what was completed, what is still open, and how scheduled checks went, for example 12 of 12 completed. That gives the task completion and open-job figures a daily source that was recorded at the time, rather than reconstructed for the monthly meeting.

07

Further reading, and a list to take away

NHS England publishes the National standards of healthcare cleanliness 2025, the most developed public model of risk-based cleaning frequencies and audits in the UK, and NHS National Services Scotland publishes the National Cleaning Services Specification. The Health and Safety Executive publishes the Approved Code of Practice Workplace health, safety and welfare (L24). The British Institute of Cleaning Science (BICSc) publishes standards and training relevant to audit and supervision.

Before you agree or review a set of cleaning KPIs, check that:

• there are between five and ten, and each one matters to this building;
• they measure delivery as well as quality;
• each has a written definition, data source, owner, period and target;
• targets come from a baseline, not from ambition;
• some of the data is verified by the client, for example through joint audits;
• repeat failures are tracked, not only closed actions;
• there is a daily or weekly view of delivery as well as the monthly report;
• they are reviewed at least once a year.