COSHH Explained Simply: A Cleaner's Guide to Safety

A simple guide to COSHH for UK cleaners: what counts as a hazardous substance, a five-step safety plan, and why it matters for your insurance.

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Last updated · 2 min read

COSHH stands for the Control of Substances Hazardous to Health Regulations. It might sound like dull regulation, but for cleaners it is the law that helps keep you and your staff safe from the chemicals you use every day.

What counts as a hazardous substance?

In cleaning, this usually includes:

  • Bleach and toilet cleaners, which can be corrosive.
  • Oven cleaners, which are often highly caustic.
  • Solvents and descalers.
  • Dust, if your work generates a lot of it.

Your five-step safety plan

You do not need a chemistry degree to work safely. Follow these rules and check the HSE's COSHH guidance for the detail:

  1. Read the label. Never use a product without a label, and look for hazard pictograms. Treat anything marked corrosive with extreme care.
  2. Do not mix chemicals. Mixing bleach with other cleaners, especially acidic limescale removers, can release toxic chlorine gas.
  3. Wear your PPE. Gloves are a barrier between your skin and chemical burns. Use eye protection with sprays that could mist back into your face.
  4. Ventilate. Open a window. Fumes can build up quickly in small bathrooms and cause dizziness.
  5. Know the first aid. Check the safety data sheet for each product so you know what to do if something is swallowed or splashed in the eyes.

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Why it matters

Ignoring COSHH can lead to dermatitis, breathing problems or eye injuries. If you employ staff, you are responsible for assessing the risks, providing training and supplying PPE. Good COSHH records also help if a claim is ever made against you.

Chemical damage is also a common source of claims from clients, so check your cleaning business insurance covers treatment risks and damage caused by the products you use. Our guide to treatment risks explains why. When you are ready, get a cleaning insurance quote.

Frequently asked questions

COSHH duties apply to employers, and self-employed people have duties to protect themselves and others affected by their work. Following COSHH good practice is sensible for everyone who uses cleaning chemicals.

Related cover

Related guides

This guide is general information about insurance for cleaning businesses and is not personal advice. Policy cover, limits and exclusions vary between insurers, so always check your own policy documents.

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