Quality Assurance vs Quality Control in Cleaning

Although sometimes used interchangeably, quality assurance and quality control are not the same thing.

Both are central to ensuring top-tier cleaning standards, but they focus on different stages of the cleaning process.

When it comes to commercial cleaning, by understanding quality assurance vs quality control, a business can better maintain high standards and vastly reduce the risk of cleanliness, hygiene, and safety issues developing down the line. 

In this guide, we’ll explain the difference between quality assurance vs quality control, how each applies to commercial cleaning and why businesses achieve the best results when both work together.

Summary: Quality Assurance vs Quality Control

• Quality assurance is pre-emptive. It focuses on identifying and addressing problems before they happen.

• Quality control checks whether cleaning standards have been met.

• Quality assurance and quality control are both essential for consistent commercial cleaning.

• An effective quality management system combines documented processes with regular inspections.

• Internationally recognised ISO 9001 accreditation helps businesses maintain and continually improve quality standards.

What is quality assurance?

Quality assurance (QA) is the process of putting systems and procedures in place to make sure work is completed to the expected standard from the outset. 

Rather than identifying mistakes after they happen, quality assurance aims to prevent them taking place to begin with.

When it comes to commercial cleaning services, quality assurance begins well before a cleaner arrives on site. 

The QA process will typically include developing cleaning schedules, documenting procedures, training staff and ensuring the correct products and equipment are available for each planned task.

Let’s take the example of training and staff management. Quality assurance will ensure an office cleaner knows exactly which products are suitable for different surfaces and tasks, the frequency with which particular zones need cleaning and crucially, the high standards necessary on completion of cleaning.

Note: Quality assurance is an ongoing process. Procedures need regular review to identify opportunities for improvement as client requirements or industry standards change.

Case in point: significant changes to working patterns in office settings post the COVID-19 pandemic.

What is quality control?

Quality control, or QC, differs from quality assurance. Rather than preventing issues, QC focuses on identifying them – and thus takes place after cleaning has been completed rather than before.

In a commercial cleaning environment, quality control usually tends to inspections, site audits and supervisor checks. 

Carrying out reviews helps to confirm that cleaning has been completed to the expected standard (as agreed in the quality assurance process) and highlight any areas that need additional attention.

Imagine a meeting room has been cleaned before an important client visit. A supervisor may carry out a final inspection to ensure surfaces are spotless, bins are empty and presentation standards are perfect. If they identify an issue, it can be corrected before it affects the client.

Quality control provides valuable feedback, but it works best when supported by strong quality assurance processes. Without those preventative systems, the same issues may continue to occur.

Quality assurance vs quality control

Quality assurance and quality control work in harmony to ensure the end result of cleaning is to the highest standard. But there are important distinctions when you consider quality control vs quality assurance:

Quality assurance

• Focuses on preventing problems
• Process-driven
• Takes place before work begins
• Includes training, procedures and planning
• Aims to improve consistency

Quality control

• Focuses on identifying problems
• Inspection-driven
• Takes place during or after work
• Includes inspections, audits and quality checks
• Confirms standards have been achieved

You could break the difference down into two questions. Quality assurance asks, “How can we stop problems from happening?” On the other hand, quality control questions, “Is the work complete to the required standard?”

Businesses achieve the best results when both approaches work together.

Why both matter in commercial cleaning

Every one of our clients rightly expects the same high standard of service, whether the cleaning takes place on a Monday morning or a Friday evening.

This is where quality assurance and quality control systems perfectly complement each other.

Quality assurance creates the framework. See our quality assurance policy for an example.

QA ensures cleaners receive appropriate training, follow documented procedures and understand the expectations at each site.

QC then confirms those processes are working. 

Regular inspections, client feedback and site audits provide opportunities to identify issues early and take corrective action where necessary.

Without quality assurance, inspections simply uncover the same recurring problems. Without quality control, businesses have no reliable way of confirming their quality assurance processes remain effective.

A practical example

Consider a busy office bathroom.

• A quality assurance approach would include documented cleaning schedules, clear task lists, trained staff, appropriate cleaning chemicals and colour-coded equipment to reduce the risk of cross-contamination.
• Quality control takes over once the work is complete. A supervisor may inspect the washroom, check hygiene standards, confirm consumables are replenished and record any issues requiring further attention.

Both processes are equally important. One helps prevent problems, while the other confirms the expected standard of cleaning.

Continual improvement matters

It’s a common misconception that quality management ends once an inspection is complete.

In reality, every inspection provides useful information that can improve future performance. If the same issue appears repeatedly, it may indicate that procedures need updating, additional training would help or cleaning schedules need adjusting.

This cycle of planning, delivering, reviewing and improving helps commercial cleaning providers maintain consistently high standards while responding to changing client needs. Essentially, QC is always feeding back into QA. ensuring maintenance of high standards.

The role of ISO 9001

Many organisations choose to implement recognised quality management standards to demonstrate their commitment to consistency and continual improvement.

ISO 9001 is the world’s most widely recognised quality management standard. It provides a structured framework for documenting processes, monitoring performance, managing risks and continually improving services.

At Think FM, our ISO 9001-certified quality management system supports every stage of our cleaning operations. Learn more about our accreditations.

From staff training and documented procedures through to regular quality inspections and client feedback, it helps us deliver reliable cleaning services that meet consistently high standards.

For wider reading, you may find these guides helpful too:

• Staff Retention: Our Guide
• Quality Management System Explained
• Office Cleaning Checklist

FAQs: QA vs QC

What is the difference between quality assurance and quality control?

Quality assurance focuses on preventing problems through effective planning, procedures and training. Quality control focuses on checking completed work to ensure it meets the required standard.

Is quality control part of quality assurance?

The two processes work closely together, but they have different purposes. Quality assurance creates the systems that support consistent performance, while quality control verifies those systems are producing the expected results.

Why are quality assurance and quality control important in commercial cleaning?

Together, they help maintain consistent cleaning standards, improve customer satisfaction and support continual improvement. Businesses that rely on only one approach are more likely to experience recurring quality issues.

Final thoughts

For organisations that expect high-quality commercial cleaning, both quality assurance and quality control should form part of a wider quality management system rather than serving as separate activities.

Working with Think FM means partnering with a commercial cleaning provider that places quality at the centre of everything we do. 

Our ISO 9001-certified quality management system helps ensure we deliver every service consistently, professionally and with a commitment to continual improvement.

You may also find these articles helpful:

• Clear desk policy – our guide
• Health and safety inspection guide
• Moving Offices: Your comprehensive checklist
• What Is A Flexible Workspace?
• Indoor Team Building Activities
• Best Office Pets To Boost Workplace Productivity
• Quick Workplace Checklist

We are proud to be a leading provider of daily office cleaning London businesses throughout the capital trust.

We deliver a commercial cleaning service London companies rate highly – see our reviews on Google.

For more information, don’t hesitate to contact us today.