Cleaning Contracts Commercial: A Complete 2026 Guide
A commercial cleaning quote can look competitive and still be impossible to deliver properly. After the National Living Wage rose to £12.71 an hour on 1 April 2026, employer National Insurance, holiday pay and pension costs all sit on top of the basic wage. CleanTender's guide to commercial cleaning contracts explains why labour costs dominate commercial cleaning pricing: a low headline rate may leave no room for supervision, cover staff, equipment, insurance or mobilisation.
That matters because commercial cleaning isn't a casual add-on. The British Cleaning Council's 2026 research valued the UK cleaning, hygiene and waste sector at almost £72 billion, based on the latest economic data cited for 2023, with 1.51 million people employed, around 5% of the UK workforce, and 78,915 businesses operating in 2025. British Cleaning Council research shows the scale behind every office, retail unit, healthcare building and managed estate contract.
For London facilities teams, the answer isn't to choose the cheapest supplier. You need a contract that defines the work, proves performance, survives audits and puts accountability in one place. This guide sets out how to buy and manage commercial cleaning contracts without allowing hidden labour assumptions or fragmented suppliers to undermine the service.
Table of Contents
What a Commercial Cleaning Contract Actually Covers - Daily work - Periodic work - Specialist work
SLA, KPIs and Service Levels That Hold Up - Translate every number into an action
Pricing Models and How to Read a Quote - Pressure-test the labour floor
Compliance, TUPE, COSHH and Insurance - TUPE and handover - COSHH and chemical control - GDPR and insurance
Tendering, Evaluating Bids and Choosing a Supplier - Start with the property, not the supplier - Score delivery, not presentation
Why Integrated FM Contracts Beat Standalone Cleaning Deals - Where the savings really appear
What a Commercial Cleaning Contract Actually Covers
A commercial cleaning contract is a legally binding agreement stating who cleans which areas, how often the work happens, what standard applies and what each party pays when the service changes or fails. That sounds obvious, but weak scopes cause more disputes than dirty floors. Buyers often list rooms, request a price and leave the operational detail to interpretation.
Start with three service tiers.
Daily work
Daily cleaning normally covers the areas that affect staff, visitors and building hygiene immediately. For a 12,000 sq ft serviced office in Canary Wharf, the daily specification might include four cleaners working for two and a half hours, covering eight washrooms and three kitchenettes. Desks and touchpoints, floors, bins, washrooms, kitchens and consumable checks should each appear as separate tasks, not be hidden under “general cleaning”.
Use a commercial cleaning checklist to test whether the scope identifies locations, frequencies, methods and responsible roles.
Periodic work
Periodic tasks protect the building rather than resetting it each evening. The Canary Wharf example could include monthly carpet extraction and quarterly high-level dusting. Add the method, access requirements, equipment responsibility and any excluded areas. If the supplier needs a scissor lift, out-of-hours access or a building escort, state who arranges and pays for it.
Specialist work
Specialist services need their own triggers and pricing rules. Annual hard-floor restoration, post-build sparkle cleaning, IT-suite anti-static work, biohazard response and trauma cleaning shouldn't sit inside an ambiguous routine-cleaning allowance. State whether the service is included, priced through a schedule of rates or ordered as a variation.
The contract should also identify mobilisation duties, keys, access passes, waste routes, equipment storage, chemical approvals, holiday cover and escalation contacts.
SLA, KPIs and Service Levels That Hold Up
A service level agreement only works when a manager can answer three questions without interpretation: what is measured, when is it measured and what happens after a breach?
For a London commercial site, build the schedule around auditable behaviour. The commercial cleaning SLA template identifies practical benchmarks including 95% or higher task-completion compliance, daytime ad-hoc response within 4 hours, overnight response within 24 hours, incident reporting within 1 hour and monthly performance reporting. Emergency response windows for spills, biohazards or flooding may be set at 2 to 4 hours, depending on the site's risk profile.
Translate every number into an action
A 95% audit score means nothing unless the audit form defines the sample, the scoring method and critical failures. A 50-point checklist could treat blood, mould or a blocked WC as automatic failures, regardless of the overall score.
A four-hour complaint response should mean acknowledgement, attendance, rectification or a documented reason for escalation. A one-hour incident-reporting requirement should identify who receives the report, what facts it contains and how follow-up actions are tracked. Consumables also need thresholds. If hand soap falls below an agreed level, the contract should trigger a refill rather than wait for a tenant complaint.
KPI | Benchmark | Operational meaning |
|---|---|---|
Task completion | 95%+ from random audits | The supplier must meet the defined checklist standard and record defects |
Daytime ad-hoc request | Within 4 hours | The helpdesk acknowledges, allocates and closes the request within the agreed window |
Overnight request | Within 24 hours | The supplier records the issue and completes or escalates it by the next agreed service point |
Incident reporting | Within 1 hour | Slips, sharps finds and biohazards reach the named contact promptly |
Emergency response | 2 to 4 hours where specified | The response window reflects the building's risk and occupancy pattern |
Performance reporting | Monthly | Audit scores, complaints, incidents, actions and trends appear in one report |
Monthly score publication and quarterly reviews should include the site manager and contract director.
For a wider view of how cleaning sits alongside reception, security and other soft services, review facilities management soft services. The same discipline applies: measurable outputs, named owners and evidence that a client can audit.
Pricing Models and How to Read a Quote
The price model decides where financial risk sits.
Pricing model | Risk sits with | Best for |
|---|---|---|
Per cleaner-hour | Mostly the client | Variable attendance and tightly supervised short-term requirements |
Per square metre | Shared through the specification | Multi-site portfolios with consistent areas and methods |
Fixed monthly fee | Mostly the contractor | Stable sites with a locked scope and defined change control |
Per-hour billing can suit variable demand, though the client must control attendance, productivity and substitution.
Per-square-metre pricing makes comparison easier across a portfolio because the charge follows the asset rather than a particular rota. It still needs adjustment for footfall, washroom density, floor finishes, access restrictions and cleaning frequency.
Fixed monthly billing gives the contractor an incentive to improve methods and absorb routine delivery risk.
Pressure-test the labour floor
UK market guidance places standard contract cleaning at roughly £16 to £30 per cleaner-hour and £1.50 to £4 per square metre per clean in 2026. Optus Glean's commercial cleaning cost guide also gives typical monthly bands of about £300 to £800 for a small office, £800 to £2,000 for a medium office and £2,000 to £5,000 or more for a large or multi-floor site.
A £12 headline hourly rate doesn't cover the 2026 National Living Wage of £12.71 for a worker aged 21 or over, before employer NI, holiday pay and pension costs are considered. CleanTender's contract pricing guidance explains why labour and employment on-costs have such a significant effect on sustainable commercial cleaning rates.
Request a cost breakdown showing labour, consumables, management, equipment, insurance, mobilisation, periodic work, profit and VAT separately. Then ask how the supplier will cover sickness, holidays, training and failed audits.
Compliance, TUPE, COSHH and Insurance
Compliance clauses determine whether a cleaning contract can transfer safely, whether staff can use chemicals correctly and whether an incident becomes a controlled process or a dispute.
TUPE and handover
A service-provision change may trigger TUPE, meaning eligible incumbent staff transfer to the incoming provider with continuity of employment and their existing terms and conditions generally protected. Accrued pension rights are protected, although the incoming employer does not necessarily have to continue an identical pension arrangement.
COSHH and chemical control
Under COSHH, hazardous substances must be assessed for the risks they present. Current safety data sheets should be obtained where required and used to inform the COSHH assessment, with staff given appropriate information, instruction and training. The contract should identify approved products, dilution controls, storage arrangements, spill procedures, PPE and disposal routes.
GDPR and insurance
CCTV footage, contractor badge records, visitor information and incident logs can contain personal data. Where the contractor processes personal data on the client's behalf, appropriate written data-processing terms are required under UK GDPR.
Insurance wording also needs scrutiny. Required cover may include £10 million public liability, while employer's liability must normally provide at least £5 million of cover, with higher limits sometimes required by procurement teams. Professional indemnity may also be required where the contractor provides specification or professional advice.
The UK commercial cleaning contracts guide gives examples of insurance levels commonly requested in cleaning procurement.
Area | Minimum requirement | Audit risk |
|---|---|---|
TUPE | Accurate employee information, consultation and liability allocation | Underpriced mobilisation or employment disputes |
COSHH | Safety data sheets, assessments, storage and training records | Unsafe chemical use or failed compliance evidence |
GDPR | Data processing terms, access controls and retention rules | Unauthorised access to CCTV, badges or incident records |
Insurance | Contract-appropriate liability and professional cover | Uninsured loss or breach of procurement conditions |
Audit clauses | Access to records, reports and corrective actions | Supplier cannot prove delivery after an incident |
For central government property, the Government Facilities Management Standard requires cleaning regimes to suit the organisation's operations and be based on a recognised published standard. CleanFlo's guidance on obtaining cleaning contracts also highlights measurable KPIs, TUPE, COSHH evidence and insurance as important elements of modern cleaning procurement. The guidance on obtaining cleaning contracts.
Tendering, Evaluating Bids and Choosing a Supplier
A good tender produces comparable bids.
Start with the property, not the supplier
Step one is the scope of work. Attach floor plans, identify floor finishes, record occupied areas, list washrooms and kitchens, define access windows and separate daily, periodic and specialist work.
Step two is supplier research. Use a pre-qualification questionnaire to examine trade body membership, audited accounts, insurance, relevant policies, TUPE experience and live UK reference sites of comparable complexity. Ask for evidence, not assurances.
Step three is the site walk. Shortlist three or four bidders, require attendance and record questions centrally so every bidder receives the same clarification. Look at loading access, waste routes, cleaner storage, security controls, lifts, washroom locations and areas that drawings don't show accurately.
Score delivery, not presentation
Step four is bid evaluation. Score price, methodology, TUPE track record and social value, with methodology carrying more weight than price. Read the staffing plan closely.
Step five is award and mobilisation. Before signature, reconcile the winning price against the scope line by line. Ask who pays for out-of-hours access, whether washroom consumables are included, where window cleaning starts and ends, which periodic tasks are optional and how chargeable extras are approved.
Use the following questions:
Coverage: Who attends when the regular cleaner is absent?
Evidence: What does a completed monthly audit look like?
Access: Who pays for security escorts, keys or restricted-hours working?
Consumables: Is replenishment included, capped or charged by usage?
Variations: What triggers a price change, and who authorises it?
Incidents: Who reports a slip, sharps find or biohazard, and within what timeframe?
The tendering process should finish with a mobilisation plan. Set dates for staff transfer, induction, equipment delivery, chemical approval, baseline audits and the first governance meeting.
The sequence is easier to explain visually, but the contract still lives or dies by the documents behind each step.
Why Integrated FM Contracts Beat Standalone Cleaning Deals
Standalone cleaning contracts fail in familiar ways. The washroom supplier blames the cleaner, the window contractor blames access, the pest-control provider blames waste storage and the client spends its time passing messages between companies. Each supplier may be meeting its own narrow wording while the building still feels poorly managed.
A consolidated FM contract gives the client one accountable provider for connected services such as cleaning, washroom hygiene, window cleaning, pest control and helpdesk reporting. That means one SLA structure, one account director, one escalation route and one monthly governance meeting.
Factor | Standalone contract | Consolidated FM |
|---|---|---|
Accountability | Several suppliers can dispute ownership | One accountable provider owns coordination |
Reporting | Separate logs and performance formats | Unified helpdesk and governance reporting |
Consumables | Usage can be difficult to reconcile | Consumption is reviewed across the service |
Mobilisation | Each supplier manages its own start-up | One coordinated mobilisation plan |
Invoicing | Multiple invoices and approval routes | One managed commercial relationship |
Incidents | Handoffs can delay response | Escalation follows one agreed structure |
Where the savings really appear
The strongest argument isn't that consolidation magically makes every task cheaper. It's that a single operating model reduces duplicated supervision, duplicated meetings, duplicated mobilisation activity and the margin leakage that appears when vendors protect their own boundaries.
At a high-traffic London site, the same provider can coordinate cleaning, washroom replenishment, reception, security logs and issue escalation. That gives the facilities manager a clearer view of consumption and recurring defects. It also makes responsibility harder to evade when a complaint crosses service lines.
Integrated facilities management is particularly relevant for offices, residential buildings, retail premises and event venues where cleaning interacts with access control, visitors, deliveries and incidents.
Solomon's Facilities Management provides a London-based integrated model covering cleaning, janitorial services, reception, concierge and security functions under a single accountable contract.
A cheap cleaning contract with five unmanaged interfaces is often more expensive to operate than a properly scoped contract with one owner.
Consolidation still needs safeguards. Require service-specific scopes, separate KPI results, transparent cost schedules and named operational leads.
For London facilities teams, the practical recommendation is straightforward. Consolidate where services share access, reporting, consumables or incident response. Keep specialist services separate only when they require different competence, licensing or risk controls.
Solomon's Facilities Management can combine commercial cleaning, janitorial routines, reception, concierge and security coordination under one accountable London FM contract, with defined scopes and reporting routes. Visit Solomon's Facilities Management to discuss your site requirements and replace fragmented supplier arrangements with a properly governed service model.
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