Cleaning Tender Evaluation: How to Score Cleaning Bids Properly

Awarding a cleaning contract on price alone is the most reliable way to buy a bad service. The cheapest bid is almost always cheapest because something invisible has been reduced — frequency, hours, supervision or reporting.

Cleaning tender evaluation is about scoring quality and price together, in a way that is defensible and that identifies the bidder most likely to actually deliver.

This is written for buyers. Contractors will also find it useful, because it reveals what assessors are scoring.

Key takeaways

• Weight quality meaningfully — a 90/10 price-weighted tender buys the cheapest, not the best
• Normalise price against the specification, so you are comparing the same work
• Score method, supervision, reporting and staff arrangements, not just promises
• Verify references rather than accepting them
• The lowest bid usually differs from the others in ways you should identify explicitly

Set the evaluation framework first

Decide this before bids arrive, and publish it in the tender. Evaluating after seeing the numbers invites unconscious bias toward a preferred outcome.

A workable weighting for most commercial buildings:

For public-sector work, weightings are often mandated. For private, the principle is the same: price should not be so dominant that quality becomes irrelevant.

Normalising price properly

You cannot compare monthly totals unless bidders are pricing the same thing.

• Require a completed priced schedule — area, task, frequency, hours, rate. This is why a cleaning specification matters
• Check stated hours against the scope. A bid with half the hours of the others is not more efficient; it is a different, smaller service
• Identify omissions. Missing consumables, no supervision hours, no periodic work
• Compare on total cost of ownership, including periodic work, consumables and any setup charges
• Watch for unrealistically low first-year pricing with a built-in increase at renewal
• Check the price adjustment mechanism — an aggressive first-year price with an uncapped review is a trap

If the lowest bid is materially below the others, work out why before scoring it as an advantage. That gap is where the service has been quietly reduced.

Scoring method and approach

What separates a real bid from a template.

• Evidence they visited the building. Specific references to its layout, constraints and areas prove it; generic boilerplate proves the opposite
• Standards and targets — do they propose measurable levels per area, such as the APPA cleanliness levels?
• Method per area type, including washrooms, floors, glass and periodic work
• Frequency table matching your specification, with deviations explained
• Equipment and chemistry, appropriate to your finishes
• Periodic work plan — how stripping, extraction and high-level work are scheduled

Scoring quality management and reporting

This is where the best bids separate themselves, and it is the criterion most often under-weighted.

• Inspection frequency and method, and who performs it
• Scoring and target setting
• Photographic evidence of findings
• Reporting format and frequency — will you see it, and what is in it?
• Deficiency correction process with timescales
• Baseline inspection at contract start
• Escalation route and named contacts
• A sample report — the single most useful artefact a bidder can provide

A bidder who brings a real sample report is demonstrating process. One who promises "regular quality audits" is not.

Scoring staffing, supervision and training

The people determine whether the specification is delivered.

• Supervisor-to-site ratio and supervision hours on your site specifically
• Staffing model — dedicated staff or shared, and what cover exists
• Retention and turnover figures, and what they do about turnover
• Training and onboarding process, including site-specific induction
• Vetting and security clearance where required
• Whether existing staff transfer, and under what terms — this can be a legal matter

Low turnover is a quality argument. See cleaning staff turnover for why it matters and what to ask.

Health, safety and compliance

Usually pass/fail, but worth scoring where it is not.

• Insurance certificates at the required limits
• WSIB/WCB clearance current
• Health and safety policy, risk assessment approach and training records
• WHMIS training and chemical management
• Incident reporting and investigation approach
• Method statements for higher-risk tasks

Failure on insurance or clearance documentation should be disqualifying, not a scoring deduction.

Checking references properly

References are the highest-value verification available and are frequently wasted.

• Ask for references from similar buildings, not just any client
• Phone them. Written references are usually glowing and uninformative
• Ask specific questions: how often do you receive reports? How quickly are problems fixed? How many supervisors do you see? Have you had staff churn?
• Ask what the incumbent could improve — the honest answer is more useful than the praise
• Check for the pattern across references, not individual complaints
• Consider asking for a current client who left — usually unavailable, but the reaction is informative

The evaluation process

1. Compliance check first — insurance, clearance, mandatory documents. Disqualify failures
2. Score price on normalised, like-for-like totals
3. Score quality against published criteria, independently and separately from price
4. Moderate as a panel — score individually first, then discuss, to avoid anchoring
5. Verify references for the leading bidders only, to save time
6. Interview the top two or three — a short presentation on their approach reveals more than the document
7. Check the arithmetic, including total cost over the term
8. Document the decision with reasons, which protects you if challenged

Traps that produce bad awards

• Price-dominated weighting, which reliably buys the cheapest reduced service
• Scoring on presentation quality rather than substance — a well-designed document is not a method
• Accepting stated hours without testing them against the specification
• Ignoring omissions because the total looked attractive
• Not verifying references
• Changing the criteria after bids arrive
• Awarding to the incumbent by default without testing the market
• No baseline inspection requirement, leaving the starting condition undefined
• No reporting obligation, so you have no visibility once the contract starts

Frequently asked questions

How should cleaning tenders be weighted?

Price commonly 30-50%, with the remainder on method, quality management and reporting, staffing and supervision, experience, and compliance. A price weighting above roughly 60% typically buys the cheapest service rather than the best.

Why do cleaning bids differ so much in price?

Because they usually describe different work. Without a specification that fixes frequency and standard, and a priced schedule that bidders complete, the totals are not comparable. Identifying what the lowest bid omits is more useful than treating it as efficiency.

What documents should I verify before awarding?

Insurance certificates at the required limits, current WSIB or WCB clearance, health and safety documentation, and any required security vetting or licensing. Failures on these should disqualify rather than reduce the score.

Should I interview cleaning bidders?

Yes, the top two or three. A short presentation on their approach, supervision and reporting reveals more than the written submission, and gives you a sense of who you would actually be working with.

What is the most commonly under-weighted criterion?

Quality management and reporting. It is the criterion that determines whether you can see what is happening after the contract starts, and it is the one that most distinguishes a serious bidder from a cheap one.

Buy the service, not the number

Tender evaluation is where a good contract begins or a bad one is locked in for three years. Weight quality, normalise price, verify references, and document your reasoning.

NeatScore gives bidders the means to evidence their quality process — scored inspections, photo records and client reports — which makes the difference between bids visible at evaluation stage. Try it free for 7 days, or see pricing.