What Causes Commercial Floors to Become Slippery?

Slips are a common workplace safety concern, particularly in commercial environments where floors may be exposed to water, grease, oil, food, cleaning products and heavy foot traffic. Restaurants, commercial kitchens, retail premises, warehouses, offices and public buildings can all face different types of floor-related hazards.

For UK businesses, reducing slip risks requires more than simply placing a warning sign beside a wet floor. Effective slip safety involves identifying hazards, controlling contamination, maintaining flooring and making sure cleaning procedures are appropriate for the working environment.

So, how can commercial businesses reduce floor slip risks?

Identify Where Slip Risks Occur

The first step is understanding where and when floors become hazardous.

Businesses should look at areas where people regularly walk and identify sources of contamination. These may include:

Kitchen work areas
Entrances and exits
Washrooms
Food preparation areas
Loading areas
Corridors
Stair approaches
Areas around sinks and equipment

The conditions may also change throughout the day. An entrance, for example, may become wet during rainy weather, while a commercial kitchen may experience grease contamination during busy service periods.

Understanding these patterns helps businesses focus their controls where they are most needed.

Keep Floors Clean

Regular commercial floor cleaning is an important part of controlling slip risks.

Dirt, grease, oil, food residue and other contaminants can affect the interaction between footwear and the floor.

However, cleaning needs to be carried out correctly. Using excessive detergent, choosing an unsuitable cleaning product or failing to remove cleaning residues can potentially create additional problems.

Cleaning products should be used according to the manufacturer's instructions, including the recommended dilution and application method.

Deal With Spills Quickly

A spill that remains on a walking surface can quickly become a slip hazard.

Businesses should have clear procedures for dealing with spills as soon as they are identified.

Employees should know who is responsible for responding to spills and what procedure should be followed.

The area may need to be temporarily controlled while the contamination is removed. Simply placing a warning sign beside a spill without dealing with the underlying hazard does not remove the risk.

A prompt and consistent response can help prevent small incidents from becoming larger problems.

Control Grease and Oil

Grease and oil can be particularly challenging in commercial kitchens and food-service environments.

Contamination can be generated around cooking equipment, preparation stations, sinks and storage areas.

Businesses should consider where grease comes from and how it reaches the floor.

Effective controls may include suitable cleaning procedures, appropriate equipment, good housekeeping and measures that prevent contamination from spreading.

If the same area repeatedly becomes greasy, the business should investigate the underlying cause rather than simply increasing the frequency of mopping.

Choose Suitable Flooring

Flooring can play an important role in slip safety.

Different flooring materials and surface finishes can perform differently under dry and contaminated conditions.

When selecting flooring for a commercial environment, businesses should consider the conditions the floor is expected to experience.

For example, a floor used in a commercial kitchen may need to cope with water and grease, while an entrance may regularly experience moisture brought in from outside.

Floor selection should therefore be based on the actual environment rather than appearance alone.

Consider Cleaning During Wet Conditions

Cleaning itself can temporarily increase the risk of slipping because floors may remain wet while people are still using the area.

Businesses can reduce exposure by planning cleaning activities carefully.

Depending on the premises, this could involve cleaning during quieter periods, restricting access to recently cleaned areas or providing alternative routes.

Excess water should be removed where appropriate, and sufficient drying time should be allowed.

Warning signs can help communicate a temporary hazard, but they should form part of a wider control strategy.

Maintain Drainage

Water that cannot drain away effectively may remain on a floor and increase slip potential.

This can be particularly important in kitchens, washrooms, entrances, industrial areas and other environments where water is regularly present.

Blocked or inadequate drainage should be identified and addressed.

Regular inspection and maintenance can help prevent water from accumulating in walking areas.

Use Appropriate Footwear

Footwear is another factor that can influence slip risk.

Different sole materials and tread patterns can perform differently depending on the floor and contamination present.

In environments where floors may become wet or contaminated, businesses should consider whether employees have suitable footwear for their tasks and working conditions.

Footwear should also be maintained and replaced when its condition has deteriorated.

Train Employees

Employees should understand the risks associated with slippery floors and know what to do when they identify a hazard.

Training can cover:

Spill response
Cleaning procedures
Reporting damaged flooring
Appropriate footwear
Wet-floor controls
Housekeeping
Safe movement around contaminated areas

Everyone in the workplace has a role to play in identifying and reporting hazards.

Inspect Floors Regularly

Routine inspections can help businesses identify problems before they become more serious.

Staff can look for damaged surfaces, loose tiles, worn areas, standing water, contamination and other conditions that could affect safe movement.

Particular attention should be given to locations where previous incidents or near misses have occurred.

Inspection findings should be recorded and followed up where necessary.

Consider Slip-Resistance Testing

Where there are concerns about the performance of an existing floor, professional slip-resistance testing may provide useful information.

Methods such as pendulum testing can measure slip or skid resistance under defined conditions.

Testing can be particularly useful when investigating recurring slip incidents, assessing existing flooring or reviewing a specific area where contamination is common.

However, a test result should not be considered a complete risk assessment. Floor condition, contamination, footwear, cleaning and workplace activities should all be considered together.

Review Cleaning Procedures

If a floor repeatedly becomes slippery after cleaning, the cleaning process itself should be reviewed.

Businesses can consider:

Is the correct cleaning product being used?
Is the product diluted correctly?
Is the floor being rinsed when required?
Is cleaning equipment clean?
Is contaminated water being changed regularly?
Is sufficient drying time being provided?
Is grease actually being removed?

The objective should be to remove contamination without leaving additional residue or spreading the problem across a larger area.