Question 1

Walk me through the last site you ran from start to handover.

Accepted Answer

It shows the scale you've actually handled and whether you understand the whole sequence, not just your own trade's slice. Name the type of build, the main trades and who you reported to Describe the sequence in phases: groundworks, structure, envelope, fit-out, snagging Pick one phase where something went wrong and say what you did Finish with how the handover went and what you'd do differently

Question 2

You find a subcontractor's crew working at height without edge protection. What do you do?

Accepted Answer

They want to know you'll stop work without hesitation and handle the fallout calmly. Stop the work straight away and get people to a safe position Speak to the crew's foreman, not just the workers Record it in the diary and follow the company's incident or near-miss process Agree what has to be in place before work restarts and check it yourself Raise it with their office if it's a repeat

Question 3

The programme is slipping behind. How do you pull it back?

Accepted Answer

Supervisors are judged on the programme more than anything else, and this shows whether you plan or only react. Find the real cause first: late materials, a slow trade, design changes or weather Use the look-ahead to resequence work that doesn't depend on the delay Talk to the trades about extra labour or weekend shifts, and what that costs Tell the project manager early with options, not just a problem

Question 4

Tell me about a time an inspection failed on your site.

Accepted Answer

Failed inspections cost days. They want to see ownership and a fix that stops it happening again. Say what was inspected and what the inspector picked up Explain how you got it corrected and rebooked quickly Describe the check you added before future inspections Keep it honest about your part in the miss

Question 5

How do you run your morning briefing or toolbox talk?

Accepted Answer

The briefing is where a supervisor sets the day. A vague answer suggests it doesn't really happen. Say when it happens and who attends Cover the day's high-risk activities, deliveries and any changes to access Pick one topic and keep it short enough that people listen Get signatures and note any concerns raised

Question 6

Two trades both need the same area on the same day. How do you decide?

Accepted Answer

Clashes happen constantly, and how you settle them shows whether trades will trust you. Check which one sits on the critical path Look for a way to split the area or the day Tell both foremen the decision and the reason directly Adjust the look-ahead so it doesn't happen again the following week

Question 7

What goes into your daily site diary?

Accepted Answer

The diary is the company's evidence in disputes and claims. They want someone who writes it properly. Labour on site by trade, plant and deliveries Weather and any time lost to it Instructions given, visitors, inspections and incidents Photos of work before it's covered up

Question 8

A client or homeowner walks onto site unannounced and starts asking for changes. What happens next?

Accepted Answer

Supervisors often face clients without the project manager there, and informal changes cause money disputes. Make sure they're inducted and escorted, since site rules apply to everyone Listen, but don't agree to changes on the spot Pass the request to the project manager as a formal variation Note the conversation in the diary

Question 9

How do you handle a subcontractor who keeps under-manning the job?

Accepted Answer

This is one of the most common problems supervisors face, and it tests how firm you can be. Record the labour numbers daily so you have facts Raise it with their foreman, then their office, in writing Link it to the programme so the impact is clear Escalate to your project manager when the contract route is needed

Question 10

Tell me about a disagreement you had with someone above you.

Accepted Answer

They want to see you'll push back on safety or quality without turning it into a fight. Pick a real disagreement about the work, not a personality clash Explain the facts you brought to the conversation Say how it was settled and what you learned

Question 11

What software have you used to run a site?

Accepted Answer

Many firms run diaries, snag lists and drawings through an app, and they want to know how much training you'll need. Name what you've used, such as Procore, Fieldwire or a company system Say what you did in it: diaries, photos, snag lists, drawing revisions Mention how you got trades to use it too

Question 12

A concrete pour is booked for tomorrow and the forecast turns to heavy rain overnight. What do you do?

Accepted Answer

Weather calls are daily decisions on site, and a bad one wastes a pump, a gang and a load of concrete. Check the forecast detail and the pour size, then talk to the concrete supplier about their cutoff for cancelling Decide early, by the end of the day, so the pump and gang can be rebooked If you go ahead, have covers, pumps for standing water and a plan for protecting the finish Record the decision and the reason in the diary

Site Supervisor interview questions and how to answer them

The 8 questions you will almost certainly get

A forgettable answer, and a better one

"Walk me through the last site you ran from start to handover."

"You find a subcontractor's crew working at height without edge protection. What do you do?"

Questions to ask them

Need more Site Supervisor interviews to prep for?

The question	What they want to know	Your angle
Walk me through the last site you ran from start to handover.	It shows the scale you've actually handled and whether you understand the whole sequence, not just your own trade's slice.	Name the type of build, the main trades and who you reported to
You find a subcontractor's crew working at height without edge protection. What do you do?	They want to know you'll stop work without hesitation and handle the fallout calmly.	Stop the work straight away and get people to a safe position
The programme is slipping behind. How do you pull it back?	Supervisors are judged on the programme more than anything else, and this shows whether you plan or only react.	Find the real cause first: late materials, a slow trade, design changes or weather
Tell me about a time an inspection failed on your site.	Failed inspections cost days. They want to see ownership and a fix that stops it happening again.	Say what was inspected and what the inspector picked up
How do you run your morning briefing or toolbox talk?	The briefing is where a supervisor sets the day. A vague answer suggests it doesn't really happen.	Say when it happens and who attends
Two trades both need the same area on the same day. How do you decide?	Clashes happen constantly, and how you settle them shows whether trades will trust you.	Check which one sits on the critical path
What goes into your daily site diary?	The diary is the company's evidence in disputes and claims. They want someone who writes it properly.	Labour on site by trade, plant and deliveries
A client or homeowner walks onto site unannounced and starts asking for changes. What happens next?	Supervisors often face clients without the project manager there, and informal changes cause money disputes.	Make sure they're inducted and escorted, since site rules apply to everyone