Before this course: Renovation Planning: scope, permits and hiring (course 12.3.3). Earlier you learned basic repairs (course 12.3) and larger projects such as tiling and drywall patching (course 12.3.2). You can already write a scope of work, budget with a contingency, ask about permits, compare bids, read a contract and close out a job. This course goes one level higher: understanding the trades themselves, how people qualify, the standards they work to, and how to lead, teach and review others safely.
The trades map: who does what in a home
A house is like a body, and the trades are like different doctors. A painter is like a skin-care helper, but the electrician is like a heart surgeon: you would never let someone without the right training do that job. Knowing who does what keeps everyone safe.
- The main trades and professionals in a home (names and rules differ by country):
| Trade or professional | Typical home work | Where the risk is | Licensed or qualified person needed? |
|---|---|---|---|
| Electrician | Wiring, circuits, panels, outlets, switches | Shock, fire, hidden faults | Yes, in most places (Lesson 4) |
| Plumber | Supply pipes, drains, vents, fixtures | Leaks, sewer gas, water damage | Often, for changes to pipes and drains |
| Gas technician or gas fitter | Gas lines, stoves, furnaces, water heaters | Fire, explosion, carbon monoxide | Yes |
| Heating and cooling technician | Furnaces, boilers, air conditioners, heat pumps | Gas, electricity, refrigerants | Often |
| Carpenter or framer | Framing, stairs, doors, trim, cabinets | Structure, falls, power tools | For structural work, with drawings and a permit |
| Roofer | Roof covering, flashing, gutters | Falls from height | Often a registered contractor |
| Mason, tiler, drywall finisher, painter | Brick, tile, walls, finishes | Dust, cuts, ladders | Usually not, for simple finishes |
| Engineer or qualified designer | Structural drawings, load calculations | The whole building | Yes, for structural changes |
| Hazardous-materials specialist | Testing and removing asbestos, lead paint | Dangerous dust | Yes |
| General contractor | Runs the whole job and the trades | Coordination, permits, payments | Often licensed or registered |
- Scope of practice: a licence covers one trade. A licensed plumber is not automatically allowed to do electrical work, and a general contractor usually hires licensed trades for licensed work.
- The traffic light (course 12.3.2) still applies: green (a careful owner can do it), yellow (ask about a permit), red (licensed or qualified professional). At this level you can explain why each red job is red.
- Why the line exists: licensed work is the work where a mistake can kill or injure someone, often months later and behind a wall. The licence is the public's way of making sure the person has the training and is accountable.
- Walk through a home and list every system: power, water supply, drains, gas, heating and cooling, roof, structure, finishes.
- For each system, write which trade or professional works on it, using the table above.
- Colour each system green, yellow or red for the most common job on it.
- Next to every red item, write the reason in one line (shock, fire, gas, collapse, dangerous dust).
- Mark which systems have a shut-off and where it is (course 12.3).
- Check: you can stand in any room and name the trade for every system you can see.
Read the video script
[Screen: cut-away drawing of a house with wires, pipes and ducts] "A house has many systems, and each one has its own trade."
[Text on screen: Electrician. Plumber. Gas technician. Carpenter. Roofer.] "Electricians, plumbers, gas technicians, carpenters, roofers. Each has its own skills and its own risks."
[Screen: a painter, then an electrician at a panel] "Some jobs a careful owner can do. Others need a licence, because a mistake can kill."
[Text on screen: One licence, one trade] "And a licence covers one trade, not all of them."
[Host] "Know the map, and you'll always know who to call."
Make a "trades map" for your own home: every system, the trade that works on it, its traffic-light colour and the reason for every red item.
ClaudeStuck? Copy a ready-made prompt for Claude
Copy this, open Claude, paste it, and Claude will walk you through the lesson step by step.
For a grown-up: Claude is for adults (18+). Copy this, paste it into Claude, and use the answer to explain the lesson to your child.
I'm learning "Home Maintenance Pathways: trades routes and standards" on The Future Market. Lesson 1: "The trades map: who does what in a home". What the lesson teaches: - The main trades and professionals in a home (names and rules differ by country): - Trade or professional - Typical home work - Where the risk is - Licensed or qualified person needed? - Electrician - Wiring, circuits, panels, outlets, switches - Shock, fire, hidden faults - Yes, in most places (Lesson 4) - Plumber - Supply pipes, drains, vents, fixtures - Leaks, sewer gas, water damage - Often, for changes to pipes and drains - Gas technician or gas fitter - Gas lines, stoves, furnaces, water heaters - Fire, explosion, carbon monoxide - Yes - Heating and cooling technician - Furnaces, boilers, air conditioners, heat pumps - Gas, electricity, refrigerants - Often - Carpenter or framer - Framing, stairs, doors, trim, cabinets - Structure, falls, power tools - For structural work, with drawings and a permit The exercise I'm working on: Make a "trades map" for your own home: every system, the trade that works on it, its traffic-light colour and the reason for every red item. --- I'm stuck. Please: 1. Explain the main idea in plain, simple words with one everyday example. 2. Walk me through the exercise one small step at a time. Ask me what I've done so far before giving the next step. 3. Don't just give me the final answer. Help me do it myself, and check my work when I share it.
I'm a parent helping my child (about 8 years old) with a lesson called "The trades map: who does what in a home" from the course "Home Maintenance Pathways: trades routes and standards". Here's what the lesson says: A house is like a body, and the trades are like different doctors. A painter is like a skin-care helper, but the electrician is like a heart surgeon: you would never let someone without the right training do that job. Knowing who does what keeps everyone safe. The activity: Make a "trades map" for your own home: every system, the trade that works on it, its traffic-light colour and the reason for every red item. --- Please explain this so an 8-year-old understands: short sentences, a fun everyday example, and no hard words. Then give me 3 simple questions I can ask my child to check they understood, and a way to do the activity together, one tiny step at a time.
How tradespeople qualify: apprenticeship routes
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Codes, standards, permits and inspections
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The licensed line: what only licensed people may do
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Safety first: hazards, controls and stopping work
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A home maintenance system: calendar, records, products and recalls
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Teaching, leading and reviewing others
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Final project
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Quiz
What does "scope of practice" mean for a licence?
A licence covers one trade; it does not allow the holder to do other trades' licensed work.
How does the ILO describe an apprenticeship?
Training under a written agreement, paid or compensated, with on-the-job and off-the-job learning, leading to a recognized qualification.
When an apprentice does licensed work in your home, what should you expect?
A qualified person supervising and responsible for the work.
What is the difference between a code and a permit?
The code sets the minimum rules; the permit is the local office checking your plan before work starts.
When must an inspection happen for work inside walls?
Before the walls are closed.
Name four jobs on the licensed line.
Gas work, new wiring or circuits, changing pipes and drains, structural changes, asbestos or lead paint work, roof work at height.
How do you verify a tradesperson's licence?
Get the number, look it up with the official register or licensing body, and check the name, trade and date match.
What does the WHO say about lead exposure?
No level of lead exposure is known to be without harmful effects, and young children are particularly vulnerable.
What are the five levels of the hierarchy of controls?
Elimination, substitution, engineering controls, administrative controls, PPE.
Who may stop work on a job if they see danger?
Anyone on the job.
Where do you find how often to test an alarm or change a filter?
In the manufacturer's instructions.
What comes first in a review of someone's renovation plan?
Safety, licensing and permit gaps that must change before work starts.
Final exam
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Certificate
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