Safety Critical Worker Medical

From our clinic next to Waterloo station or at your offices, we offer safety critical medicals that comply with all of the Constructing Better Health recommendation and make sure your company is compliant with the prime contractor contractual requirements.   We provide a cost effective and simple way to monitor the health of your workforce and can easily be carried out onsite by a qualified health practitioner.

Health and Safety at Work Act 1974 states that under current health and safety legislation, employers have a duty of care to prevent the ill-health of their workers. This is particularly relevant to those carrying out safety-critical tasks. It is important that safety-critical workers are not suffering from medical conditions or undergoing any medical treatment which is likely to cause sudden loss of consciousness or incapacity, impairment of awareness, concentration, balance or coordination or significant limitation of mobility.

The term “safety critical work” is defined as

“Where the ill health of an individual may compromise their ability to undertake a task defined as safety critical, thereby posing a significant risk to the health and safety of others.” (CBH, 2015).

Safety-Critical Work (SCW) medicals identify if there is any risk or likelihood of employees developing a health problem that could cause them to be suddenly taken ill, whilst undertaking their work for example, and there are certain tests that can be done to highlight any such chances and reduce the risk to employee and others.

It is important that safety-critical workers are not suffering from medical conditions or undergoing any medical treatment which is likely to cause sudden loss of consciousness or incapacity, impairment of awareness, concentration, balance or coordination or significant limitation of mobility.

ToHealth Ltd is an accredited occupational health service provider (OHSP) with Constructing Better Health (CBH) and specialise in providing quality services to the construction industry. We strictly adhere to HSE and CBH standards.

What does the SCW medical consist of?

  • A baseline SCW health questionnaire to establish any current or previous medical/psychological health history
  • Blood pressure measurement
  • Height, Weight & Body Mass
  • Audiometry – hearing test
  • Spirometry – Lung function test (if indicated – job specific)
  • Visual Acuity, colour vision and peripheral vision screen
  • Urinalysis for diabetes or other health issues
  • Musculo-Skeletal assessment
  • Mental health assessment

N.B. this is not an exhaustive list, we would always review the job risk assessments.

The recommended medical assessment varies by role.  You can add certain tests depending on the type of industry and health and safety compliance requirements:

Drug and alcohol testing.

Skin surveillance.

Hand arm vibration (HAVS)

Night worker medicals

Outside of safety critical workers, other construction workers should have health surveillance where there is systematic, regular checks on workers to identify early signs of ill health, and then acting on the results. Health surveillance is needed to protect workers who are at an increased risk, identify work-related ill health at an early stage so that steps can be taken to treat the condition and prevent further damage; and give early warning that protective control measures are no longer effective. See our health assessment page for more information.

Who needs a safety critical worker medical?

If you have workers who are undertaking safety critical tasks such as operating plant machinery, working on scaffolding and at height, roadside construction or any other job that involves risk, then making sure they are healthy enough is imperative. A worker may well struggle on with a medical condition without realising its potential impact and proper screening can help highlight and address situations such as these.

In the construction industry the following roles have been defined as ‘safety critical’:

  • Asbestos licensed worker
  • LGV/HGV Driver
  • Plant Operators
  • Scaffolder/Rigger
  • Slinger/Signaller/Banksman/Traffic Marshall
  • Steel Erector Structural/Fabricator
  • Steeplejack
  • Tunnel Boring Gangs
  • Roadside (high speed)
  • Tunnelling
  • Confined Space workers
  • Working at Height where control measures not practicable

Allowing for this guidance, Employers will need to decide whether an activity contains a safety-critical element and an incapacitated worker might expose themselves or others to a significant risk of harm.

Safety Critical Worker Medical


In Clinic Appointment

Safety Critical Worker Medical FAQ

1Do I need to bring anything with me to the appointment?
You will be required to bring along your existing CBH card and some form of photographic identification. Ideally we would like you to arrive at least 15 minutes before your appointment time. You should also bring with you a record of any medications you are taking in regards to pre-existing medical conditions.
2Where can the medical take place?
We can provide these assessments anywhere in the UK. We do have our London Waterloo Clinic which is conveniently situated right next to Waterloo train station. The address is 41 York Road, London, SE1 7NJ
3How long will the medical take?
The medical should take around 45 minutes to complete, we work on a timed appointment basis so you will be seen on time and can plan your day without the worry of delays.
4Do I get my certificate on the day of my appointment?
Yes we will provide you with the certificate at the end of your appointment to take away with you. We will also update the CBH portal at this point.
5How long is the certificate valid for?
The frequency of medicals is dependent on risk / age
Under 54 - Every three years
55-65 – Every two years
65+ - Annually
6How do I arrange an appointment for a medical?
The easiest way to arrange an appointment is by calling our bookings team on 0333 335 9866 or email us directly

Need more information?

If you would like more information on our wider range of services, please do get in touch with us using the below details:

Telephone:  0333 335 9866
Website Contact Us: