Construction is one of the most hazardous industries in South Africa, and the harm is often slow: dust, noise, vibration, sun and stress that build up over a career and only show themselves years later. The core law is the Occupational Health and Safety Act 85 of 1993 (OHSA), which puts a duty on every employer to provide a working environment that is safe and without health hazards, as far as reasonably practicable. Knowing the main risks, and knowing your rights, can be the difference between a long career and a permanently shortened one.
The big causes of long-term harm
These are the exposures that quietly shorten trade careers in SA:
- Dust diseases. Silica dust from cutting concrete, brick or stone causes silicosis, which is irreversible lung scarring. Asbestos fibres in older buildings cause mesothelioma and lung cancer. Both can take decades to show symptoms.
- Noise-induced hearing loss (NIHL). Prolonged exposure to drills, jackhammers, grinders and power tools causes permanent, irreversible hearing damage. See the noise-induced hearing loss guide.
- Musculoskeletal disorders (MSDs). Repetitive lifting, awkward postures and vibration cause back, shoulder and joint injuries that often force early retirement. See musculoskeletal injuries.
- Skin cancer. Outdoor workers receive roughly 2 to 3 times more UV radiation than indoor workers; cumulative lifetime exposure raises the risk sharply. See sun, heat and working outdoors.
- Heat illness. Working outdoors in the SA climate creates real risks of heat exhaustion and heat stroke if hydration and rest are not managed.
- Mental health and substance use. Financial stress, physical danger and isolation are genuine occupational hazards, covered across the human-layer guides.
Your legal rights and your employer's duties
Under the OHSA, the Construction Regulations add specific duties on principal contractors and contractors, including appointing health and safety officers on larger sites. The key duties are:
- Conduct a risk assessment and keep it documented.
- Provide appropriate personal protective equipment (PPE) free of charge.
- Conduct health surveillance, meaning medical monitoring, for hazardous exposures.
- Give workers information, instruction and training on the risks they face.
- Report workplace incidents to the Department of Employment and Labour.
If you are self-employed, you are not an "employee" under the OHSA, but you still carry duties as a self-employed person not to expose yourself or others to risk. That also means nobody else is arranging your health checks or your PPE, so the responsibility falls to you.
Where to get help
- Department of Employment and Labour (occupational health and safety) at www.labour.gov.za.
- Compensation Fund for COIDA injury and disease claims, at cfonline.labour.gov.za or 0860 105 350.
- National Institute for Occupational Health (NIOH) at www.nioh.ac.za, which maintains current SA occupational health guidance.
COIDA stands for the Compensation for Occupational Injuries and Diseases Act 130 of 1993. It is the no-fault scheme that pays medical costs and disability benefits for work-related injury and disease, funded by employer levies. Self-employed tradies are not covered unless they register as an employer covering themselves.
Common mistakes
- Treating slow harm as no harm. Silica, noise and sun damage do not hurt today, so they get ignored until they are permanent.
- Accepting "just buy your own mask". PPE for a hazardous exposure must be provided free by the employer, not deducted from your pay.
- Skipping health surveillance. If your work exposes you to dust or noise, baseline and follow-up medicals are how a future COIDA claim gets proven.
- Assuming self-employed means unprotected by default. You still have OHSA duties, and you should weigh private income-protection cover to fill the COIDA gap.
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