How to Reference Check a Tradesperson
A reference check should do more than confirm that someone used to work somewhere.
For trade businesses, it is one of the best opportunities to test whether the candidate's version of their experience matches how a former employer saw it.
A good reference check can help confirm technical ability, reliability, safety, attitude, independence and how the person actually behaved at work. It can also expose gaps that were not obvious during the interview.
That does not mean you should treat every referee call like an investigation.
Most reference checks only need to be a straightforward professional conversation. The goal is to collect enough evidence to make a better hiring decision, not to catch the candidate out.
Start by Confirming Who You Are Speaking To
Before asking performance questions, establish the referee's relationship with the candidate.
Ask for their name, position and how they worked with the person.
Were they the direct supervisor?
Business owner?
Workshop manager?
Leading hand?
Project manager?
Someone who only worked alongside the candidate occasionally may still have useful insight, but their view is different from someone who managed them every day.
A strong referee should usually have direct enough experience to comment on the candidate's work.
You can begin with something simple such as:
"Can you tell me how you worked with them and for roughly how long?"
That gives you context for everything that follows.
Verify the Basic Employment Details
Start with facts.
What position did the candidate hold?
When did they work there?
Was the role permanent, casual, contract or project-based?
What type of work did they perform?
These questions help confirm that the resume is broadly accurate.
Small differences in dates are not necessarily a problem. People often forget exact months or simplify a resume.
Large discrepancies deserve clarification.
If the candidate said they were a senior maintenance fitter for four years but the referee describes them as a trades assistant for eighteen months, you need to understand why.
The reference check is not about assuming dishonesty.
It is about making sure the story makes sense.
Ask What Work They Actually Did
Job titles can be misleading.
"Electrician," "mechanic," "fitter" or "technician" can cover a huge range of responsibilities.
Ask the referee to explain what the candidate actually did.
For example:
"What type of work were they mainly responsible for?"
"Did they work independently or mostly as part of a crew?"
"What jobs would you trust them to handle without close supervision?"
These questions help establish practical capability.
A candidate may genuinely be a qualified electrician, but if their experience is almost entirely new residential construction, they may need significant development before taking on complex industrial fault finding.
That does not make them a poor worker.
It simply gives you a more accurate picture.
Confirm Their Level of Independence
This is especially important if your vacancy involves sending someone out alone.
Many resumes say "able to work unsupervised."
A reference can help confirm what that looked like in reality.
Ask whether the candidate could run their own jobs.
Did they organise materials?
Deal with customers?
Plan the work?
Solve problems?
Complete paperwork?
Did someone need to check their work regularly?
The answer helps you understand whether the person was genuinely operating independently or simply working within a larger crew.
Both can be fine depending on the vacancy.
The problem is discovering the difference after they start.
Ask About Technical Ability
You do not need the referee to give the candidate a technical exam.
Ask for an overall assessment.
"What were they technically strongest at?"
"Was there any type of work they needed more support with?"
"How would you rate their fault-finding or problem-solving ability?"
These questions are particularly useful for experienced positions.
The referee may tell you the person is excellent at installations but weaker at diagnostics.
Perhaps they are a strong mechanic but have limited electrical diagnostic experience.
Maybe they are a capable fitter but have not done much machining.
That information helps you judge fit rather than simply deciding whether they are "good" or "bad."
Ask About Reliability Directly
Reliability is one of the most important qualities in a trade employee.
One person failing to arrive can disrupt a crew, delay a site or leave a customer waiting.
Ask directly.
"How reliable were they?"
Then follow up.
"How was their attendance?"
"Were they generally punctual?"
"Could you rely on them when the workload was busy?"
A useful referee should be able to give you more than a one-word answer.
You are listening for consistency.
Someone who occasionally had a legitimate absence is not automatically unreliable.
The concern is repeated unexplained lateness, poor attendance or needing constant follow-up.
Ask About Safety
Safety should be part of the reference for roles involving construction, machinery, vehicles, electrical work, heights or other hazards.
Ask:
"How did they approach safety?"
"Were there ever concerns about them taking shortcuts?"
"Could they be trusted to follow site procedures?"
The referee may be limited in what they are willing to discuss.
That is okay.
Even the way they answer can provide context.
A strong response might describe the candidate as cautious, reliable with isolations or good at raising issues when something was not right.
You are looking for evidence that safe work practices were part of their normal behaviour.
Ask About Quality of Work
Technical competence and workmanship are related but not identical.
Ask how the candidate's finished work compared with expectations.
Did they take pride in the job?
Were there frequent callbacks?
Did someone have to recheck their work?
Were they careful with testing and documentation?
A candidate who works quickly but regularly creates rework can become expensive.
The best tradies usually balance productivity with quality.
For customer-facing businesses, presentation and cleanup may also matter.
A service technician who fixes the fault but leaves the customer's property in a mess can still damage the business.
Ask How They Handled Mistakes
Everyone makes mistakes.
You are interested in what happens next.
Ask:
"How did they respond when something went wrong?"
A strong employee usually owns the issue, communicates it and helps correct it.
A weaker employee may hide mistakes or blame other people.
This can tell you a lot about accountability.
You are not expecting perfection.
In many cases, a candidate who has made mistakes and learned from them may be more trustworthy than someone who insists they never get anything wrong.
Ask About Their Attitude
"Attitude" can become vague unless you make the question specific.
Ask how the person responded to instructions, feedback and difficult days.
Were they easy to manage?
Did they take constructive criticism well?
Did they become frustrated easily?
Were they willing to help?
A tradie does not need to be endlessly cheerful.
Some excellent employees are quiet and straightforward.
You are mainly trying to understand whether they were professional and manageable.
There is a big difference between someone who is reserved and someone who is constantly argumentative.
Ask About Teamwork
If the role involves crews, teamwork matters.
Ask the referee how the candidate worked with others.
Did they contribute?
Could they work with different personalities?
Did they help apprentices or junior workers?
Were there repeated conflicts?
A single disagreement is normal.
You are looking for patterns.
Strong employees can disagree without turning every issue into a drama.
For senior tradies, ask whether they helped lift the capability of the team.
That can be especially valuable if they will supervise apprentices.
Ask About Customer Communication
For service businesses, this can be critical.
Ask:
"How were they with customers?"
Did they explain issues clearly?
Were they polite?
Could they handle complaints?
Did customers trust them?
A technically strong tradie can still be a poor fit for a customer-facing role if their communication creates unnecessary problems.
Conversely, a person who communicates well can be extremely valuable even if they still have some technical areas to develop.
The importance depends on your business model.
Ask About Productivity
Employers understandably want to know whether someone gets through work efficiently.
Ask how the candidate managed workload and deadlines.
Were they consistently productive?
Did they need frequent pushing?
Could they prioritise?
Did they rush and create errors?
The goal is not simply speed.
A good employee works at a sustainable pace while maintaining quality and safety.
If the referee says the person was fast but had regular callbacks, that matters.
If they say the person was methodical but consistently delivered quality work, that may suit your business perfectly.
Ask About Their Strongest Qualities
A useful open question is:
"What would you say they were best at?"
Referees often give more natural answers here.
You may hear:
Excellent fault finder.
Great with customers.
Very reliable.
Strong fabricator.
Good with apprentices.
Extremely organised.
The answer can also reveal whether the candidate's claimed strengths match how others saw them.
If the candidate spent the interview selling themselves as a senior technical expert and the referee mainly praises their friendliness, that does not automatically mean there is a problem, but it may justify further technical assessment.
Ask What They Needed to Improve
This is one of the best reference questions.
"Where did they still need development?"
Good referees can usually identify something.
Perhaps they were technically strong but poor at paperwork.
Maybe they lacked confidence dealing with customers.
Perhaps they needed more experience diagnosing complex faults.
A development area is not necessarily a reason not to hire.
It helps you understand what support may be needed.
In fact, a completely perfect reference can sometimes be less useful because it gives you no realistic picture of the person.
Ask How They Responded to Feedback
This becomes especially important if your company has strong standards or the candidate will need to learn new systems.
Ask:
"How did they respond when you corrected them or gave them feedback?"
Some experienced tradies struggle when entering a new business because they believe their previous method is the only acceptable one.
You want someone confident enough to use their experience but flexible enough to adapt.
For apprentices and junior workers, willingness to learn may matter even more than current technical ability.
Ask About Supervising Apprentices
If the candidate will work with apprentices, specifically ask about it.
Did they teach?
Were they patient?
Did apprentices learn from them?
Could they correct mistakes without becoming aggressive?
A brilliant tradesperson can still be a terrible trainer.
Some people simply do not enjoy teaching.
That is fine if the position does not require it.
If your workforce relies heavily on apprentices, however, supervisors who can teach become extremely valuable.
Ask Why They Left
You probably already asked the candidate.
Now hear the other side.
"Can you tell me why they left the business?"
The stories do not need to match word-for-word.
There can be different perspectives.
You are looking for major contradictions.
The candidate may say the company ran out of work while the referee says they resigned for another opportunity. Those explanations may both be true.
More concerning would be a candidate claiming redundancy when the referee indicates serious performance issues.
Even then, gather context before jumping to conclusions.
Ask Whether They Were Eligible for Rehire
One of the most useful reference questions is:
"Would you employ them again?"
It is simple.
It also forces the referee to summarise their view.
A confident "absolutely" can be reassuring.
A long pause followed by a carefully worded answer can justify asking more questions.
Do not treat this as an automatic pass or fail.
A previous employer may not rehire someone because they no longer have the role, the candidate moved interstate or the business structure changed.
Follow up with:
"Why or why not?"
That is where the useful information usually appears.
Ask Whether They Would Trust Them on a Job Alone
For positions requiring independence, ask a role-specific version of the rehire question.
For example:
"Would you be comfortable sending them to one of your customers to handle a job without supervision?"
That brings technical ability, reliability and customer communication together.
For industrial work, you might ask:
"Would you trust them to diagnose and complete maintenance work independently on your site?"
This is often more useful than asking for a generic rating out of ten.
It puts the candidate's capability into a realistic context.
Don't Ask the Referee to Make the Hiring Decision
The referee is one source of evidence.
They do not know your workplace as well as you do.
A candidate might have been average in one environment and excellent in another.
Perhaps their previous employer offered limited training.
Maybe their strengths were not suited to the role.
Your decision should combine the interview, qualifications, references and any appropriate technical assessment.
Reference checking should improve the decision.
It should not outsource it.
Be Careful With Negative References
A poor reference deserves attention, but context matters.
Former employment relationships can end badly.
Personal conflicts happen.
A referee may have their own biases.
If one negative comment contradicts everything else you have learned, investigate rather than immediately rejecting the candidate.
Ask for another relevant referee if appropriate.
Look for patterns across multiple sources.
If two supervisors independently describe the same serious issue, that carries more weight.
If one former manager appears personally angry while another gives an excellent professional reference, the picture is more complicated.
Use judgement.
Verify That the Referee Is Genuine
Most references are legitimate.
Still, it can be sensible to confirm who you are speaking with.
Where practical, verify the company independently.
Look for the referee's role through public business information, the company website or professional profiles.
You can also call a company's main number and ask to be connected rather than relying entirely on a mobile number supplied on the resume.
This becomes more important for senior positions or where something feels inconsistent.
Do not turn the process into surveillance.
You are simply confirming that the "operations manager" you are speaking with is not the candidate's mate pretending to be one.
What If the Candidate Only Provides Personal References?
Personal references are usually less useful for experienced trade hires.
A friend can tell you whether the candidate is a good bloke.
They usually cannot tell you whether the person can diagnose a machine fault or reliably run a commercial plumbing job.
For someone with previous trade employment, ask for professional referees who have directly supervised or managed their work.
For young apprentices or people entering the workforce for the first time, the situation is different.
A teacher, coach, previous casual employer or work-experience supervisor may be appropriate because there may not be a long employment history available.
Use the best evidence realistically available.
What If Their Current Employer Doesn't Know They're Looking?
This is very common.
Do not automatically demand permission to contact the current employer.
Doing so could jeopardise the candidate's existing job.
Instead, use previous supervisors or other appropriate professional referees.
If you need a current-employer reference before making a final decision, discuss the timing with the candidate.
Some employers make an offer subject to final checks.
The process should respect the fact that many candidates are conducting a confidential job search.
Reference Checks for Apprentices
Apprentice references should focus more heavily on attitude and potential.
A first-year candidate may not have meaningful technical employment history.
Ask previous employers, teachers or supervisors about reliability, punctuality, willingness to learn and how they responded to instructions.
For transferring apprentices, you can ask more specific questions.
What stage were they at?
What work had they been exposed to?
How were they progressing?
Why did the apprenticeship end?
Did they attend training consistently?
Were there any concerns about attitude or performance?
This can help you understand what the candidate will need if they transfer into your business.
Reference Checks for Senior Tradies
For a senior worker, go deeper.
Ask about technical judgement.
Leadership.
Training apprentices.
Planning work.
Managing customers.
Handling pressure.
Whether other workers relied on them for technical help.
A senior tradie can influence much more than their own output.
If they are expected to lead a crew, confirm whether they have actually done that effectively before.
Do not assume someone became a leader simply because their last job title included "senior."
Trade-Specific Reference Questions
The best reference questions vary slightly by occupation.
For an electrician, ask about the types of electrical work performed, independence, fault finding and how the candidate handled testing and safety.
For a plumber, ask about service work, construction, diagnostics, customer interaction and ability to run jobs independently.
For a mechanic, ask about diagnostics, servicing, repairs, productivity and comeback rates.
For a fitter, ask about maintenance, breakdown response, fault finding, machinery and whether the candidate could troubleshoot independently.
For a welder or boilermaker, ask about fabrication quality, drawings, welding processes, materials and whether work required rework.
For an HVAC or refrigeration technician, ask about service, diagnostics, customer work, controls and the systems they were most experienced with.
The purpose is the same across every trade.
Confirm that the person's actual experience matches what you are hiring them to do.
Keep the Reference Check Structured
You do not need a massive questionnaire.
A consistent structure makes the process easier and helps you compare candidates.
You might cover:
Relationship to candidate.
Employment dates.
Role and duties.
Technical ability.
Independence.
Reliability.
Safety.
Quality.
Communication.
Teamwork.
Areas for improvement.
Reason for leaving.
Whether they would rehire them.
That can usually be covered in a relatively short conversation.
If the referee raises something important, follow it.
The structure gives you consistency without making the call robotic.
Take Notes
Write down the important points.
Do not rely on memory.
If you are checking several candidates, conversations quickly blur together.
Keep notes focused on work-related information.
For example:
Strong diagnostic ability.
Excellent attendance.
Needed support with paperwork.
Good with apprentices.
Would rehire.
That is much more useful than trying to remember the tone of a phone call two weeks later.
Handle personal information appropriately and only collect what is relevant to the hiring decision.
Don't Let a Reference Replace Qualification Checks
A former supervisor saying someone is a great electrician does not prove their electrical licence is current.
A reference cannot replace formal verification where qualifications or licences are required.
Likewise, a licence does not prove someone was a good employee.
Use both.
Qualifications establish formal credentials.
References help establish how the person actually performed.
Technical interviews assess whether their knowledge fits your current role.
Together, these give you a much stronger picture.
Don't Skip References Because You Need Someone Urgently
Hiring pressure causes employers to cut corners.
A crew is short.
Projects are backing up.
Someone left unexpectedly.
The temptation is to hire the first qualified applicant who can start Monday.
That is exactly when a quick reference check can be most valuable.
A ten-minute conversation with a previous supervisor may reveal something that saves months of frustration.
You do not need to drag the process out for weeks.
You can move quickly and still perform sensible checks.
Fast hiring and careless hiring are not the same thing.
What a Strong Reference Usually Sounds Like
A strong reference normally contains detail.
The referee remembers the candidate.
They can explain the work performed.
They can describe strengths.
They acknowledge at least some development areas.
Their description broadly matches the candidate's interview.
They would be comfortable employing or working with the person again.
None of these individually guarantees a good hire.
Together, they create confidence.
The strongest references often sound realistic rather than perfect.
"They were an excellent fitter and very reliable. Their paperwork wasn't their favourite thing, but technically I'd have them back tomorrow."
That kind of answer can be much more useful than:
"Yep, great worker, no problems."
What a Concerning Reference Sounds Like
Be alert where the referee cannot confirm major parts of the candidate's claimed role.
Perhaps the person says they ran jobs independently but the referee says they required constant supervision.
Maybe the candidate described themselves as highly reliable and the former manager mentions repeated attendance issues.
Another concern is hesitation around safety or integrity.
Again, do not automatically reject someone based on one unclear answer.
Ask follow-up questions.
Gather context.
If necessary, speak with another referee.
The purpose of the check is to understand the risk properly.
A Simple Reference Check Script
You can keep a reference call conversational while still covering the important areas.
Start by introducing yourself and confirming that it is a suitable time to speak.
Explain that the candidate has applied for a trade role with your business.
Then work through the basics.
"How did you work with them?"
"What was their role?"
"What type of work did they mainly do?"
"How independently could they work?"
"What were they technically strongest at?"
"Where did they still need development?"
"How reliable were they?"
"How did they approach safety?"
"How were they with customers and coworkers?"
"How did they respond to feedback?"
"Why did they leave?"
"Would you employ them again?"
That is enough for many hires.
The quality of the follow-up questions matters more than having fifty prepared questions.
Use the Reference to Test Your Biggest Uncertainty
Every candidate has one or two things you are unsure about.
Use the reference check to address them.
Perhaps the interview suggested the candidate was technically strong but you are unsure about reliability.
Ask more about attendance.
Maybe the candidate wants a senior role but you are uncertain whether they have supervised people before.
Ask about leadership.
Perhaps their resume claims extensive fault-finding experience but their interview answers felt shallow.
Ask the referee how strong they were technically.
A reference check becomes much more useful when it is targeted to the decision you are actually trying to make.
Don't Ask Irrelevant Personal Questions
Keep the reference focused on employment.
You generally do not need information about someone's relationships, family, religion, political beliefs or unrelated personal life.
Ask whether they could meet the requirements of the previous job.
Ask how they performed.
Ask about attendance, where relevant.
Stay connected to legitimate employment considerations.
This gives you better information and keeps the process professional.
Compare the Reference With Everything Else
After the call, look at the entire candidate.
Resume.
Qualifications.
Interview.
Technical assessment if used.
References.
Do the pieces broadly align?
You should not expect every source to use identical wording.
You are looking for consistency.
If the candidate says they are an experienced independent service technician, their qualification supports it, their technical interview is strong and a former supervisor confirms they ran jobs successfully, you have a compelling body of evidence.
If every source tells a different story, slow down.
There may be an explanation.
Find it before making the offer.
Where Tradie Jobs Fits In
Tradie Jobs focuses on Australian trade and blue-collar employment across electrical, plumbing, automotive, carpentry, HVAC and refrigeration, fitting, welding, boilermaking, landscaping, scaffolding, traffic control, labouring, FIFO and mining.
A targeted job advertisement can help you attract suitable tradespeople.
The reference check helps you confirm that the strongest applicant is as good as they appeared during the interview.
Ask practical questions.
Confirm what work they actually performed.
Check reliability.
Ask about safety and quality.
Understand whether they could work independently.
Then combine those answers with qualification checks and your own assessment.
The goal is not creating more recruitment paperwork.
It is avoiding an expensive bad hire.
Final Thoughts
A good reference check is simple.
Speak to someone who actually knows the candidate's work.
Confirm the basic employment details.
Ask what they did.
Find out how independently they worked.
Check their reliability.
Ask about technical strengths, safety, quality and teamwork.
Understand where they still needed development.
Then ask the question that often brings everything together:
"Would you employ them again?"
Use the answer as one part of the decision, not the entire decision.
References are most valuable when they confirm or challenge what you already learned during the interview.
When the candidate's resume, technical answers, qualifications and former supervisor all tell roughly the same story, you can hire with much more confidence.
Frequently Asked Questions
What should I ask when reference checking a tradie?
Ask about employment history, actual duties, technical ability, independence, reliability, safety, quality, communication, teamwork and whether the referee would employ them again.
Who is the best referee for a tradesperson?
A recent supervisor, manager, business owner or other person who directly observed the candidate's work is usually most useful.
Should I accept a coworker as a referee?
A coworker can provide useful information, but a supervisor or manager may be better placed to discuss performance, attendance and responsibility.
How many references should I check?
One strong recent professional reference may provide substantial information, although two can give greater confidence for important hires.
Should I check references for every tradie?
For roles where reliability, technical capability or safety are important, reference checks are a sensible part of the hiring process.
Should I reference check an apprentice?
Yes, although first-year candidates may need references from teachers, coaches, casual employers or work-experience supervisors rather than qualified trade managers.
What should I ask an apprentice referee?
Focus on reliability, punctuality, attitude, willingness to learn, communication and ability to follow instructions.
What should I ask for a transferring apprentice?
Ask about apprenticeship stage, workplace experience, training progress, reliability and why the previous arrangement ended.
Should I ask about technical ability?
Yes. Ask the referee what work the candidate was capable of performing and where they still needed support.
Can a referee tell me whether someone was qualified?
They may be able to confirm how the candidate worked, but formal qualifications and licences should still be verified separately.
Should I ask about attendance?
Yes, where reliability and attendance are relevant to the role.
Should I ask whether they were punctual?
Yes. Punctuality can be especially important where crews, customers or site access depend on people arriving at set times.
Is one late start a red flag?
No. Look for patterns rather than isolated incidents.
Should I ask about safety?
Yes, especially for construction, industrial and other higher-risk trade environments.
What's a good safety reference question?
"How did they approach safety, and were there ever concerns about them taking shortcuts?"
Should I ask about mistakes?
You can ask how the candidate handled mistakes or problems, particularly if accountability is important to the role.
Should I ask about customer service?
Yes if the position involves dealing directly with customers or clients.
How do I check whether someone worked independently?
Ask what types of jobs they could complete without close supervision and whether they managed jobs from start to finish.
What is the best reference question?
"Would you employ them again?" is one of the most useful, especially when followed with "Why or why not?"
What does hesitation from a referee mean?
It may mean nothing, or it may warrant further questions. Do not judge the entire reference on tone alone.
What if a referee gives a negative reference?
Gather context, compare it with other evidence and consider another relevant referee before making assumptions.
Should I tell the candidate about a bad reference?
That depends on your hiring process and circumstances. The main priority is ensuring the decision is based on accurate, relevant information.
Can a former employer refuse to give a reference?
Yes. Some employers may only confirm basic employment details.
What if the referee only confirms dates?
Use other evidence such as another referee, technical assessment, qualifications and the interview.
Should I verify the referee's identity?
Where appropriate, yes. Confirm the company and the person's role rather than automatically relying on a number supplied on the resume.
Can candidates use personal references?
They can, but professional references are usually more useful for experienced tradespeople.
What if the candidate doesn't want me calling their current employer?
That is common. Use previous professional referees or agree on an appropriate point later in the hiring process.
Should I ask why the person left?
Yes. Compare the referee's explanation with the candidate's version and look for major inconsistencies.
Should I ask about pay?
Previous pay is usually less useful than understanding whether the candidate can perform your role and whether your current offer meets their expectations.
Should I ask about workplace conflict?
You can ask how the candidate worked with coworkers and responded to disagreements or feedback.
Should I ask whether they trained apprentices?
Yes if mentoring or supervision is part of the vacancy.
What should I ask about quality?
Ask how the candidate's workmanship compared with expectations and whether rework or callbacks were common.
What should I ask about productivity?
Ask whether they completed work efficiently while maintaining quality and safety.
How long should a reference check take?
Many useful reference checks can be completed in around 10 to 20 minutes, depending on the role and referee.
Should I use a written reference instead?
Written references can provide context, but a conversation usually allows better follow-up questions.
Can I email the referee questions?
You can, although phone conversations often produce richer answers.
Should every candidate be asked for references?
Using a consistent process helps ensure candidates are assessed fairly.
Should references happen before or after the interview?
Usually after you have identified a preferred candidate or shortlist, so the checks are targeted and efficient.
Can I make an offer before references?
Some employers make offers conditional on satisfactory pre-employment checks, depending on the role and hiring process.
What are reference check red flags?
Major contradictions, serious reliability concerns, poor safety attitudes, inability to confirm claimed duties or a referee strongly unwilling to rehire can justify further investigation.
Is a perfect reference always trustworthy?
Not necessarily. Useful references are often realistic and include both strengths and development areas.
What is the biggest reference-checking mistake?
Only asking whether the candidate was "good" rather than confirming what they actually did, how reliably they worked and whether their experience matches your vacancy.