Questions to Ask a Maintenance Technician in an Interview
Interview questions for hiring a building or facility maintenance technician. They test what the candidate has done with their own hands, how they triage competing emergencies, their safety habits, their record keeping, and how they behave in front of tenants.
The questions
Open any question for the note
Walk me through the systems you touched day to day at your last job.
Why ask it
An opener that gets a candidate talking about real work. Strong candidates name specific equipment and their own tasks. Weak ones describe the department rather than themselves, which usually means they assisted rather than performed.
What HVAC equipment have you serviced start to finish on your own?
Why ask it
Separates hands-on repair from having been present for it. Listen for the model type and the actual task, changing a compressor or recovering refrigerant, rather than a general claim of HVAC experience.
Tell me about the last electrical fault you traced. How did you find it?
Why ask it
The method matters more than the outcome. Good answers move in order: symptom, isolate, meter readings, cause. Answers that jump straight to replacing a part suggest guessing, which gets expensive on control boards.
What plumbing work do you do yourself, and when do you call a licensed plumber?
Why ask it
Tests judgement about their own limits and knowledge of what local rules require. A candidate who claims they will do anything is a liability; one who names the line clearly has worked somewhere that took it seriously.
A flooded unit, a stuck elevator and a failed air conditioner in July all land at once. What order, and who do you call?
Why ask it
Reveals whether they triage by risk or by whoever complained loudest. Look for life safety first, then water damage, then comfort, and for them mentioning that someone has to be told what to expect and when.
Talk me through your lockout and tagout steps on a motor you are about to open.
Why ask it
A rehearsed answer with verification and their own lock is the sign of a safe technician. Hesitation, or a claim that it depends how busy the day is, is one of the few answers worth ending an interview over.
What licences and certifications do you hold, and when do they renew?
Why ask it
The renewal date is the useful part. Candidates who know their own expiry dates tend to keep records generally, and a lapsed certification you find later is a compliance problem for you.
What did the preventive maintenance schedule look like at your last job, and did it actually get done?
Why ask it
Almost everyone says they believe in preventive maintenance. The honest answers describe why it slipped, staffing, parts, reactive calls, which tells you how they behave when the plan meets reality.
Tell me about a repair you got wrong. How did you find out?
Why ask it
The best answers include a callback and what they changed afterwards. A candidate who cannot recall a single mistake has either not done much unsupervised work or will not tell you when something goes wrong.
How do you tell a tenant their heat will not be back on tonight?
Why ask it
Tests the part of the job that generates most complaints. Look for a plan that includes a specific next step and a time, rather than an apology, and for whether they think to escalate to a manager.
What do you do when a job needs a part that is not in the shop?
Why ask it
Reveals resourcefulness and how they handle a half-finished job: temporary fix, supplier they know, whether they update the work order and tell the requester. Waiting silently for a delivery is how backlogs form.
Have you worked with a building automation front end? Which one, and what could you do in it?
Why ask it
Naming the system and the tasks, overriding a setpoint, pulling a trend, acknowledging an alarm, distinguishes real use from having watched someone else use it. This is where many otherwise strong candidates are thin.
How do you close out a work order? What goes in the notes?
Why ask it
Documentation quality is invisible until you need history on a failing unit. Good answers mention cause, parts used and readings. One-line closures leave you with no way to spot a recurring fault.
What is the heaviest on-call week you have had, and how did you get through it?
Why ask it
Tells you whether they have real experience of night callouts and how they manage sleep, handover and their own limits. It also gives them a fair chance to ask about your rotation.
When have you pushed back on a supervisor about safety, or about a repair being done the wrong way?
Why ask it
You want someone who will stop a job. Look for a specific occasion and what they said. A candidate who has never disagreed with anyone may simply do as instructed, which is a risk in this trade.
How do you work in an occupied apartment or office without leaving a mess or a bad impression?
Why ask it
Covers drop cloths, shoe covers, letting people know before entering and cleaning up. Candidates who have worked in occupied residential buildings answer this without prompting, because complaints taught them.
What have you taught a newer technician recently?
Why ask it
Shows whether they can pass knowledge on, which matters if you plan to grow the team. It also gives an indirect read on their own depth: people can only teach what they genuinely understand.
Which contractors have you supervised, and how did you check their work before signing it off?
Why ask it
Signing off contractor work is a real part of the role. Look for concrete verification, testing the unit, checking the scope against the invoice, rather than trusting the paperwork.
What kind of maintenance work do you not want to do?
Why ask it
An honest answer here is valuable and rare. Roofs, sewage, confined spaces and heights are common. Someone who claims no limits at all is either inexperienced or telling you what they think you want.
What would make you leave a job like this inside a year?
Why ask it
This surfaces the mismatch before you hire. Answers usually name a specific past grievance, unpaid overtime, a manager, no parts budget, and you can check honestly whether your site is different.
Running the interview
Practical guidance for the conversation itself
Ask for the last time, not the general case
Change every question into a specific instance: not how they approach electrical faults, but the last electrical fault they traced. General questions invite general answers, which anyone can give. A candidate who has actually done the work will produce details, model names, readings, arguments with a supervisor, without being prompted.
Include a walk round
- Take them to a mechanical room and ask what they see and what they would check first.
- Point at a piece of equipment you own and ask what its common failures are.
- Hand them a recent work order and ask what they would need to close it.
- Watch whether they notice hazards without being asked: blocked panels, missing guards, a propped fire door.
Weight the answers
- Safety practice and honesty about limits should outrank breadth of experience. Skills can be taught; a technician who skips lockout cannot be supervised into safety.
- Documentation habits matter more than most managers expect, because history is what prevents the same repair three times.
- Tenant contact skills are worth as much as technical range in occupied buildings, where most escalations start with tone rather than a fault.
Things worth verifying rather than trusting
Check licence and certification numbers with the issuing body rather than accepting a card. Ask referees what the candidate worked on unsupervised, since references confirm dates easily and scope rarely. If the role involves refrigerant, driving or working at height, confirm the specific credential before the start date rather than after.