OHS: Working Alone and After Hours: Safety Measures for Lone Workers and Isolated Staff

August 06, 2026•14 min read

Article #24 of #25 in the Occupational Health and Safety Series

Phase 2: Practical Health and Safety Topics

Introduction

Not every employee works in a busy office, workshop, or team environment where help is always nearby. In many small businesses, some employees work alone for part of the day or even for their entire shift. A technician may travel alone to client sites. A security guard may be posted at a gate or patrol point during the night. A cleaner may work after business hours when the building is empty. A driver may spend long hours on the road without direct support. A shop owner or cashier may open early or close late with no colleague present. A maintenance worker may attend a call-out at an isolated site. In each of these situations, the employee may be physically separated from supervisors, co-workers, customers, or emergency assistance. This creates a different type of workplace risk that small businesses should not ignore.

Working alone is not automatically unsafe, and it does not always mean a person is physically in a remote location. A lone worker may be in a city office building, a retail shop, a customer’s home, a storeroom, a construction site, a warehouse, a vehicle, or a parking area. What matters is that the worker does not have immediate support nearby if something goes wrong. If the person is injured, threatened, becomes ill, has a vehicle problem, faces an aggressive customer, experiences a fire, or is involved in an incident, there may be nobody close enough to notice quickly or assist immediately. Even a relatively ordinary hazard can become more serious when a person is alone and unable to get help quickly.

After-hours work creates similar concerns. A workplace that feels normal and low-risk during the day can become much more vulnerable after hours. There may be fewer people on site, fewer managers present, reduced lighting, locked access points, lower visibility, and delayed emergency response. A cleaner working in an empty office block, a technician arriving at a customer premises after dark, a security guard working a night shift, or a retail employee locking up alone may all face added risks simply because of the time of day and the lack of support around them.

For South African small businesses, lone working is common in many industries. Security companies, technical service businesses, cleaning companies, delivery services, mobile maintenance teams, retail operations, property services, agriculture, and hospitality businesses often rely on staff who work without direct supervision or who travel between sites. In small teams, it is easy to assume that lone working is just part of the job and that employees will “manage.” But from a health and safety perspective, businesses should still assess the risk and put sensible controls in place.

The goal is not to ban lone work completely. In many cases, it is practical and necessary. The goal is to understand what could go wrong when a worker is alone, decide whether the task is suitable for lone working, and put measures in place to reduce the risk. This may include communication procedures, check-in systems, emergency contacts, better planning, clearer instructions, restrictions on certain tasks, and extra controls for night work or isolated locations.

In this article, we will look at the risks associated with working alone and after hours, the types of employees who may be affected, and the practical steps small businesses can take to protect lone workers and isolated staff more effectively.

What Is a Lone Worker?

A lone worker is any employee who works without close or direct supervision and without immediate support from other people nearby. This can include someone who:

works alone in a building
travels alone to customer sites
works in a separate part of a large premises
opens or closes a business alone
works on night shift without colleagues nearby
drives alone for long distances
responds to emergency call-outs alone
works in a guard hut, storeroom, workshop, or remote site without easy access to help

A worker does not need to be in a rural or dangerous area to be considered a lone worker. The key question is whether help would be immediately available if the person had a problem.

Why Lone Working and After-Hours Work Can Be More Risky

When employees work alone, there is often no one nearby to:

notice an injury or illness quickly
call for help if the worker cannot
assist in an emergency
witness an incident
help manage an aggressive person
support safe lifting, moving, or technical work
confirm whether the worker arrived safely at the site
identify if the worker has become unwell, disoriented, or trapped

This means that incidents that might be manageable in a team setting can become much more serious when the employee is alone.

After-hours work adds further complications because:

fewer people are present to help
emergency response may be slower
the area may be darker or less visible
entrances and exits may be locked or restricted
security risks may increase
support staff and managers may not be available
the worker may feel pressure to finish quickly and leave

Which Small Businesses Should Pay Attention to Lone Worker Safety?

Lone worker safety is relevant to many industries, including:

security companies
CCTV, electrical, plumbing, and technical service businesses
cleaning and facilities services
delivery and logistics businesses
retail shops with early opening or late closing
property management and maintenance businesses
agriculture and farming operations
hospitality businesses with shift work
small offices where one employee works late
service businesses with call-out technicians or mobile staff

Even businesses that seem low-risk on the surface may still have lone working situations that deserve attention.

Common Risks Faced by Lone Workers and Isolated Staff

1. Medical emergencies or sudden illness

A lone worker may faint, suffer a medical episode, become dizzy from heat, experience chest pain, or become seriously unwell without anyone nearby to notice or assist. Even a minor injury can become serious if the person cannot reach help.

2. Slips, trips, falls, and physical injury

If a lone worker falls from a ladder, slips in a storeroom, strains their back lifting something heavy, or cuts themselves using equipment, they may not be able to call for help immediately.

3. Violence, theft, aggression, or threatening behaviour

A person working alone in retail, security, customer service, collections, home visits, or late-night work may be more vulnerable to aggression, robbery, harassment, or intimidation because there is no colleague nearby to support them.

4. Vehicle breakdowns and travel-related problems

Drivers and technicians working alone may face vehicle trouble, getting lost, bad weather, unsafe areas, or being stranded without quick support.

5. Fire, electrical incidents, or technical hazards

If a lone worker is handling electrical equipment, working in a plant room, attending a fault, or dealing with a small fire, the lack of immediate assistance can increase the seriousness of the situation.

6. Stress, fatigue, and poor decision-making

Employees working alone, especially at night or for long hours, may become tired, distracted, anxious, or tempted to take shortcuts because there is no one nearby to support or challenge them.

Tasks That May Be Unsuitable for Lone Working

Not every job should be done alone. In some cases, the safest decision is to require a second person or delay the task until proper support is available. Tasks that may be unsuitable for lone working can include:

high-risk electrical work
work at height
entering confined or isolated spaces
heavy manual handling
work with hazardous chemicals
dealing with known aggressive clients or members of the public
night work in unsafe areas
certain emergency repairs or breakdown call-outs
any task where the worker may become trapped, incapacitated, or unable to call for help

The exact decision will depend on the risk assessment, the environment, the worker’s experience, and the controls available.

Why Communication Is One of the Most Important Controls

One of the biggest dangers in lone working is not always the incident itself. It is the delay in anyone realising that something has gone wrong. Good communication procedures help reduce that delay.

A lone worker should usually know:

who they report to
when they must check in
what to do if plans change
how to call for help
what to do if they cannot reach their normal supervisor
what information to give if there is an emergency
what time someone will follow up if they do not respond

A business does not need expensive technology to improve communication. In many small businesses, a practical check-in system using calls, messages, shared schedules, and clear escalation steps can make a major difference.

Practical Safety Measures for Lone Workers and After-Hours Staff

1. Identify who works alone and when

Start by identifying:

which employees work alone regularly
which tasks are done after hours
which staff travel to isolated or unfamiliar places
which jobs are done without immediate supervision
which workers open, close, guard, clean, or maintain premises alone

A business cannot manage lone worker risk properly if it has never identified where lone working is happening.

2. Assess whether the task is safe to do alone

Ask practical questions such as:

What could go wrong?
How serious would it be if the worker were alone?
How quickly could help arrive?
Is the worker trained and experienced enough?
Is the area secure and well lit?
Does the worker have reliable communication?
Would a second person make the task significantly safer?

3. Put a check-in and check-out system in place

A simple lone worker system may require employees to:

confirm when they arrive at a site
confirm when they leave
report if the job is taking longer than expected
check in at agreed times during long tasks
confirm when they arrive home safely after a late shift or call-out where appropriate

If the worker fails to check in, the business should know exactly what follow-up steps to take.

4. Make sure workers have reliable communication tools

This may include:

a charged mobile phone
emergency contact numbers
backup contact procedures
location details for the job or site
a list of who to contact if the normal manager is unavailable

A lone worker with no battery, no signal, or no emergency numbers is much more exposed.

5. Restrict high-risk tasks where necessary

If a task is too risky to be done alone, the business should say so clearly. This may mean requiring a second person, moving the work to daytime hours, or delaying it until safer arrangements can be made.

6. Improve lighting, access, and physical security for after-hours work

After-hours workers may need:

better lighting in parking areas, entrances, and work zones
secure access and exit procedures
working alarms or panic systems where appropriate
clear rules for locking doors and managing keys
guidance on who may enter the site after hours

7. Train workers on what to do in emergencies

A lone worker should know:

when to stop work
when to leave the area
when to call emergency services
how to report a threat or suspicious person
how to respond to fire, medical emergencies, or vehicle problems
when not to confront someone alone

8. Consider personal safety in customer-facing or public-facing roles

Workers who collect payments, conduct site visits, enter private homes, or deal with frustrated customers may need extra precautions such as:

avoiding certain visits alone
confirming appointments in advance
sharing location details
having a process for raising concern quickly
leaving immediately if the situation feels unsafe

Lone Drivers and Mobile Technicians Need Special Attention

Small businesses often focus on lone working inside buildings and forget about drivers and technicians on the road. A mobile worker may face:

fatigue
vehicle breakdowns
poor weather
unsafe parking areas
difficult customers
unfamiliar neighbourhoods
pressure to keep to schedule
working in dark or isolated areas

The business should think about the full journey, not only the technical task at the destination.

After-Hours Cleaning, Security, and Closing Procedures

Employees who work at night or after hours often face a different set of risks. For example:

a cleaner may work in an empty building with little support
a security guard may be expected to challenge suspicious people alone
a retail employee may close the shop and walk to a car alone
a maintenance worker may attend a site when all other staff have left

These situations need practical planning. The worker should know:

who is aware they are on site
how to lock up safely
where emergency exits are
how to call for help
when to avoid confrontation
what to do if they feel unsafe

Common Mistakes Small Businesses Make

1. Assuming lone work is low-risk because the employee is experienced

Experience helps, but it does not remove the fact that the worker may be alone when something goes wrong.

2. Having no formal check-in system

If nobody notices that the worker has failed to return or respond, help may be delayed for hours.

3. Sending staff alone into high-risk or unfamiliar situations without planning

This is especially dangerous for call-outs, late visits, aggressive customers, and technical work.

4. Treating after-hours work as normal daytime work

Night conditions, reduced support, and security concerns can change the risk significantly.

5. Expecting workers to “use common sense” without clear guidance

Workers need practical instructions on reporting, communication, and emergency action.

6. Ignoring personal security risks

The hazard may not only be the task itself. It may be theft, aggression, isolation, or the location.

Practical Examples

Example 1: Technician attending a late call-out

A technician is sent alone after dark to a client site in an unfamiliar area. The business should make sure the worker has the correct address, contact details, check-in times, and authority to leave if the environment feels unsafe.

Example 2: Cleaner working alone in an office building

A cleaner works from 18:00 to 22:00 after all staff have left. The employer should ensure there is a check-in process, emergency contact information, secure access, and a clear procedure for suspicious activity or emergencies.

Example 3: Retail employee closing a shop alone

An employee locks up after dark and carries cash to a vehicle. This creates personal security risk. The business should review whether the employee should close alone, whether cash handling procedures are safe, and whether escort or collection arrangements are needed.

Final Thoughts

Working alone and after hours is common in many small businesses, but that does not mean it should be treated casually. A lone worker may face medical emergencies, falls, aggressive behaviour, vehicle problems, technical hazards, fatigue, and delayed access to help. After-hours work can add poor lighting, fewer people on site, increased security risk, and slower emergency response. When no one is nearby to notice a problem quickly, even an ordinary incident can become much more serious.

For South African small businesses, the best approach is to identify where lone working happens, assess whether the task is suitable to be done alone, and put practical controls in place. This includes clear communication procedures, check-in systems, emergency contacts, safe travel arrangements, restrictions on high-risk tasks, and proper planning for after-hours work. It also means recognising that lone workers are not only security guards or night staff. Drivers, technicians, cleaners, retail employees, maintenance staff, and mobile workers may all be exposed to lone working risks in different ways.

A business that manages lone worker safety properly reduces delay in emergencies, supports employees in difficult situations, and creates a more professional and responsible working environment. That is an important part of occupational health and safety, especially in small businesses where staff often work independently and where simple planning can prevent serious harm.

In the next article, we will look at working in clients’ homes and customer premises, including access risks, unfamiliar environments, pets, household hazards, customer conduct, manual handling, and practical ways to protect mobile employees when they work away from the employer’s own site.