Unit 102 is the biggest unit at Level 1 and the one that matters most once you are actually on site. It is not paperwork. Falls, asbestos and fire are the three things most likely to seriously hurt a plumber, and all three are in here.

The law, in one line each

The Health and Safety at Work Act 1974 is the big one, and it has two aims: the health, safety and welfare of people at work, and protecting other people from harm arising out of that work. It is enforced by the HSE — the Health and Safety Executive.

Your employer has to provide a safe place to work, safe equipment, training, and PPE free of charge. You have three duties: take reasonable care of yourself and others, cooperate with your employer, and report hazards.

Reading a sign before you read the words

A green fire exit safe condition sign
Safe condition. Green — this is the way out, or the thing that helps you.
Key figures for safe working for level 1 plumbers
The examinable numbers from this article, in one place.

Every site sign tells you what it means by its shape and colour, before you get close enough to read it. Learn the four and you can read any site in the country.

The catch people fall for: a fire exit sign is green, not red. Green tells you the way out; red tells you where the kit is. The word “fire” is in both and is not the thing that decides.

PPE — learn the pairs

The exam asks what each item is for, not just what it is called. Learn them as pairs.

PPE is the last line of defence, not the first. The first is removing the hazard. And it has to fit: a helmet that falls off and a mask that leaks round the edge protect nobody.

Lifting without wrecking your back

The four steps of safe manual handling, with technique last
Avoid, assess, reduce — and only then technique.

Lifting injures more workers than almost anything else, and the damage is usually slow and permanent rather than dramatic. The order never changes:

  1. Assess the load — how heavy, how bulky, how far it is going, whether the route is clear.
  2. Decide — lift it yourself, get help and lift as a team, or use a mechanical aid.
  3. Feet apart, one slightly forward. Bend your knees, not your back.
  4. Firm grip, load close to your body, lift smoothly by straightening your legs.
  5. Never twist while carrying — turn by moving your feet.
  6. Set it down the same way: knees bent, back straight.

The version worth remembering: can it be avoided, can it be mechanised, can it be shared — and only then, lift it properly yourself.

Working at height

Falls kill more construction workers than any other single cause, and plumbers are up ladders constantly — guttering, lofts, cylinders, high level pipework.

The first question is always whether the job can be done from the ground instead. Occasionally it can.

Three kinds of access equipment: step ladders for short jobs at low height, ladders for access and short-duration work, and MEWPs (mobile elevated work platforms) which lift you on a guarded platform. A ladder is for getting somewhere, not for working from all day.

Check a ladder before it goes up: stiles not bent or split, all rungs present and sound, no cracks, rungs clean of mud and grease, and the safety tag in date. Any one of those failing takes it out of use.

Then set it properly:

Asbestos: the short version

Asbestos-related disease still kills around 5,000 people a year in Great Britain, decades after it was banned, and plumbers are among the worst affected trades — because our work takes us to exactly the places it was used.

It causes lung cancer, asbestosis (scarring of the lungs) and mesothelioma (a cancer of the lining of the lungs, caused almost only by asbestos). Two facts you must know: these can be fatal, and they can take 20 years to develop. That delay is what makes it so dangerous — you feel nothing at the time, so nothing warns you to stop.

Any building built or refurbished before the year 2000 may contain it. Look out for pipe and boiler lagging, insulating board, roof and wall sheeting, textured coatings like Artex, asbestos cement guttering and flues, heat proofing round boilers, and gaskets and rope seals in old boilers.

What to do is four words long: stop work, tell your supervisor. Do not drill it, cut it, sand it, sweep it or move it. Do not try to identify it — only a laboratory can. Leave the area to someone qualified. If you are not sure, treat it as if it does contain asbestos.

Fire

Plumbers take a naked flame to work. Soldering near timber, felt or insulation starts fires every year, often hours after the operative has left.

A fire needs three things — fuel, heat and oxygen. Take away any one and it goes out. That is what every extinguisher does.

The classes of fire: A solids, B flammable liquids, C flammable gases, D metals, E electrical apparatus.

All extinguishers are red; the label colour tells you the type.

Near live electrics use CO₂ or dry powder. Never water or foam — both conduct electricity back to you.

Using one: PASS — Pull the pin, Aim at the base, Squeeze the handle, Sweep side to side. Knowing when not to matters just as much. Leave it and get out if it is bigger than about a waste bin, if it is spreading, if the room is filling with smoke, if you are not sure which extinguisher to use, or if you have no clear way out behind you.

🔢 The numbers worth memorising

1974
the Health and Safety at Work Act — enforced by the HSE
1 in 4
the ladder rule: one metre out for every four metres up, giving 75°
1 metre
how far a ladder must extend above the landing point if you step off it
Pre-2000
any building built or refurbished before 2000 may contain asbestos
20 years
how long an asbestos illness can take to develop
5,000
people killed by asbestos-related disease in Great Britain each year

⚠️ Where people go wrong

  • A fire EXIT sign is green. Red square = where the equipment is. Green = the way out.
  • Never water or foam near live electrics. Both conduct it straight back to you. CO₂ or dry powder.
  • You cannot identify asbestos by looking at it. Only a laboratory can. If in doubt, treat it as if it is.
  • Sweeping asbestos dust is one of the worst things you can do. Settled fibres are relatively harmless; airborne ones are what get breathed.
  • PPE is the last line of defence, not the first. Removing the hazard comes first.
  • Your employer pays for PPE. It must be provided free of charge, and it has to fit.

📝 8-Question Self-Test

Straight from the Level 1 course question bank. Click an option to see whether you got it right — the explanation appears instantly, and there is nothing to submit.

Your score: 0 / 8
Question 1 of 8
Health and safety law covers welfare as well as health and safety. What does welfare mean here?
Question 2 of 8
Who must pay for the PPE you need for your job?
Question 3 of 8
Which of these is a duty placed on the EMPLOYEE?
Question 4 of 8
Who enforces the Health and Safety at Work Act 1974?
Question 5 of 8
Health and safety law protects people at work. Who else does it protect?
Question 6 of 8
Who has to pay for your PPE?
Question 7 of 8
Which of these is an employer's responsibility under health and safety law?
Question 8 of 8
Which of these is one of the three duties an employee has?