COSHH Training for Cleaning Staff: What Employers Must Provide

Why Cleaning Is One of the Highest-Risk Sectors for COSHH

Cleaning workers are in daily contact with products that carry real health risks. Bleach, descalers, floor strippers, degreasers, and disinfectants each have specific hazards — skin burns, respiratory sensitisation, toxic gas release if mixed. The HSE's own guidance for the cleaning industry lists skin disease as a common occupational health problem in cleaning, alongside slips, musculoskeletal disorders, and working at height.

Yet COSHH training in cleaning is often the weakest link. Assessments exist, PPE is purchased, and products sit in a cupboard with their safety data sheets — but nobody has actually explained to staff what the hazards are, why the controls matter, and what to do if something goes wrong.

That gap is a legal problem, not just a safety one.

The Legal Requirement: Regulation 12

Regulation 12 of the COSHH Regulations 2002 places the duty on the employer. It states that every employer who undertakes work liable to expose an employee to a substance hazardous to health must provide that employee with "suitable and sufficient information, instruction and training."

Regulation 12 sets no deadline of its own. The before-exposure timing comes from Regulation 6(1), which bars work liable to expose employees until the employer has assessed "the steps that need to be taken to meet the requirements of these Regulations" and "implemented the steps referred to in sub-paragraph (a)" — training being one of those steps. It is also the widely-applied HSE expectation. L5 separately advises, as guidance rather than ACOP text, that "New employees should be provided with proper induction training". So a cleaner starting on a Monday morning who is handed a bleach spray and shown the kitchen without any chemical safety briefing puts you in breach before the morning is out.

The regulation specifies what training must include:

The names of hazardous substances the employee will encounter, the associated health risks, and any relevant workplace exposure limits
Access to relevant safety data sheets
The significant findings from the COSHH risk assessment for each substance
The precautions the employee should take to protect themselves and colleagues
The results of any exposure monitoring, and — critically — immediate notification if a workplace exposure limit is being exceeded
In some workplaces, the results of health surveillance in an anonymised collective form

Training must also be "adapted to take account of significant changes" in the type or method of work. If you switch from one product to another, or start sending staff to a new type of site, you need to update training — not rely on what was delivered twelve months ago.

What COSHH Training for Cleaners Looks Like in Practice

The regulations require the training to be "appropriate to the level, type and duration of exposure identified by the risk assessment." That is a practicable standard, not a bureaucratic one. For most cleaning operations, good COSHH training looks like this:

Product-by-product walkthrough

Work through each product on the COSHH register. For each one:

Name and hazard classification — what it is, what GHS hazard pictograms apply, what the label tells you
How you can be harmed — skin contact, inhalation, eye splash, accidental ingestion, dangerous reactions (bleach plus acids; bleach plus ammonia)
Controls in place — ventilation requirements, dilution ratios, appropriate PPE, application method (pump spray versus aerosol, for example)
What to do if something goes wrong — skin contact first aid, eye wash procedures, when to call 999, where the spill kit is

For a standard commercial cleaning operation using ten to fifteen products, a thorough walkthrough can be done in under an hour. The goal is not to turn cleaners into chemists — it is to make sure they understand the products they handle every day.

Demonstration, not just description

Reading from an SDS is not training. Staff should see the correct dilution ratio being applied, see gloves being put on before contact with corrosive products, see what ventilation looks like when stripping a floor in a closed room. Demonstration matters because cleaning work is physical and contextual.

Site-specific information

If your staff work across multiple client sites, the training needs to cover each location's product set. A hospital site with specialist disinfectants has different risks to an office contract using general-purpose cleaners. The assessment — and the training — needs to reflect that.

How Often Does COSHH Training Need to Be Refreshed?

The COSHH Regulations do not state a fixed interval for refresher training. The obligation is to ensure training remains "suitable and sufficient" — which means refreshers are triggered by changes, not by a calendar.

Refresh training when:

A new product is introduced to the range (a new substance is a new exposure risk; the assessment and training both need updating)
A cleaner changes role or site type (different exposures require different training)
A COSHH assessment is reviewed and updated
A near-miss or incident reveals a gap in knowledge
There is any evidence that control measures are not being followed correctly

In practice, most cleaning businesses also conduct an annual refresher for all staff as a baseline. This is sensible — high turnover, part-time workers, and seasonal contracts mean it is easy for knowledge to become stale. An annual refresher also creates a natural audit trail.

Does Online COSHH Training Count?

Yes — with a condition. Online COSHH training certificates satisfy the legal requirement if the content is specific enough. Generic e-learning that covers "chemical safety in general" does not satisfy Regulation 12 if it does not address the actual substances the employee will handle.

An online course is useful for covering the foundational concepts: what COSHH is, how to read an SDS, what the hazard symbols mean, why controls matter. But it needs to be supplemented with product-specific briefing. The combination — a general COSHH awareness course plus a documented product walkthrough — is a defensible approach for most cleaning operations.

The test an inspector applies is whether the employee can demonstrate they understand the hazards of the specific products they are using and the controls they are supposed to follow. A certificate alone does not prove that.

Recording COSHH Training

Regulation 12 does not specify a documentation format, but the principle is straightforward: you need to be able to demonstrate, to an inspector or in a compensation claim, that training was given, when it was given, what it covered, and who received it.

A practical training record for each employee should include:

Date of training
Products covered (or COSHH assessment references)
Method of delivery (walkthrough, online course, group session)
Trainer name and role
Employee signature

Keep these records for as long as the employment continues plus a further period after it ends — COSHH-related claims can emerge years after exposure. There is no statutory retention period for training records specifically, but five years is a reasonable minimum given the latency of some occupational diseases.

For a COSHH training record template and checklist for new starters, see our full guide.

What Inspectors Look For in Cleaning Operations

The HSE and local authority environmental health officers both inspect cleaning businesses. Common enforcement points on training:

No training records. Verbal-only training is treated as no training. If you cannot show a record, the inspector will proceed on the basis that training did not happen.

Training after first exposure. The most common breach in cleaning is handing staff products on their first shift and scheduling the induction for later in the week. The obligation is prior to first exposure — without exception.

Generic training not linked to your products. A general COSHH awareness course is background knowledge, not training. Inspectors want to see that staff have been briefed on the specific products they are using, with specific hazard and control information.

No refresher on product changes. Switching supplier or adding a product without updating the training is a compliance gap.

Incomplete coverage. Our COSHH training needs assessor is a quick way to check nothing has been left out. Some employers train on bottled products but not on process-generated substances. Airborne exposure during cleaning — e.g. mist from aerosol sprays in confined areas — is also a COSHH exposure and staff need to understand the controls.

Practical COSHH Training Checklist for Cleaners

Work through this for every cleaning employee before they handle any hazardous product:

If staff also work in hospitals, care homes, or food production environments, see the sector-specific training requirements in our full COSHH training guide.

Skin Disease: The Hidden COSHH Risk in Cleaning

The HSE identifies skin disease as one of the highest-risk outcomes for cleaning workers. Wet work — constant exposure to water, detergents, and cleaning products — strips the skin's natural barrier, making it vulnerable to irritant contact dermatitis even from products that are not inherently corrosive.

Training must cover:

The difference between irritant and allergic contact dermatitis (irritant is reversible; allergic sensitisation is permanent)
The importance of drying hands thoroughly after washing
Pre-work barrier cream if appropriate — but not as a substitute for gloves where gloves are required
Recognising early symptoms (redness, dryness, cracking) and reporting them promptly
Health surveillance requirements: for workers with significant ongoing wet work, the COSHH Regulations may require periodic skin checks

Once a worker develops allergic sensitisation to a cleaning chemical, they cannot work with that chemical again — ever. Prevention through proper training is far cheaper than the consequence.

Applying This to Your Business

A cleaning company with five staff and fifteen products can build a proper COSHH training programme in a working day. The structure: pull together your COSHH assessments, map them to your products, write a product-specific briefing checklist, deliver a supervised walkthrough with each employee, and file the signed record.

The materials already exist — your COSHH assessments contain everything training needs to cover. The gap in most cleaning businesses is not knowledge or resources. It is the failure to convert the assessment into a structured, documented briefing.

COSHHmate is being built to close that gap — assessments, training records, review reminders, and SDS management in one place. If you run a cleaning business and want COSHH compliance that does not depend on one person keeping everything in their head, join the waitlist to hear when it launches.

This guide is for information only and does not constitute legal advice. COSHH training obligations depend on the specific substances, quantities, and work processes in your workplace. The definitive source is the Control of Substances Hazardous to Health Regulations 2002 and the HSE's Approved Code of Practice L5.

Sources

Control of Substances Hazardous to Health Regulations 2002, Regulation 12 — Information, Instruction and Training (legislation.gov.uk)
Control of Substances Hazardous to Health Regulations 2002 (SI 2002/2677) (legislation.gov.uk)
HSE Cleaning Industry Guidance (hse.gov.uk)
HSE Approved Code of Practice L5: Control of Substances Hazardous to Health (hse.gov.uk)