Contractor Safety on Site: What to Verify First

Contractor safety on a managed site is usually misunderstood in one direction: managers think it means supervising how the contractor works. It does not. Your job is to verify that the contractor has a safety system of its own, brief it on the hazards of your building, control the parts of the site you own, and keep the evidence. How its people do the work belongs to the contractor's supervision.

Key takeaways

Verify the contractor's own safety system — policy, training, procedures, equipment — before work starts
Induction is yours to run: access, hazards, isolation points, emergency procedures and site rules
Do not direct work methods; direct site conditions, access and sequences you control
Two contractors in the same area need a documented overlap, not an assumption
Keep the verification record per contractor, with expiry dates on insurance and training
Stop work when you see immediate danger to life — that authority is separate from supervision — critical

What is a property manager's duty when a contractor is on site?

Answer first: to provide a safe place to work, share what you know about the building's hazards, coordinate with other work on site, and verify the contractor is competent to control its own risks. The duty is shared, not transferred, and not absorbed.

CCOHS describes the principle behind this as the internal responsibility system: everyone in a workplace is responsible for their own safety and that of co-workers, and employers and workers share the job rather than delegate it. In a managed building the owner or manager controls the premises and the contractor controls its work. Both have duties, and each is better off with written evidence of what the other was told.

You are not, however, the contractor's supervisor. You do not set the method, choose the tools or instruct their workers on technique. If you do, you have taken on a role you are neither trained nor insured for.

What should you verify before a contractor starts work?

Answer first: that the contractor has its own written safety system, competent supervision, current insurance, and workers who have been trained and briefed for this specific site.

What to verify	What it proves	Re-verify
Written safety policy and procedures	The contractor has a system, not just good intentions	Annually, or on contract change
Insurance certificate with the owner named	Claims fall on the right party	At each renewal
Workers' coverage or clearance letter	Statutory coverage is in place for the jurisdiction	Annually
Training and certification records for the tasks	The people doing the work are qualified	On new personnel or new task
Hazard assessment or safe work procedure for the job	The contractor has thought about this site	Before each job type
Incident history and corrective actions	Pattern of problems is visible before it repeats	At contract renewal
Site-specific induction acknowledgement	Workers have been briefed on this building	Every worker, every site

That table is the verification set, and it is not a prequalification questionnaire. A questionnaire records what a contractor said about itself once; this record shows what you checked and when. When the set is incomplete, the answer is a start date that moves, not a verbal promise.

How should a site induction work?

Answer first: short, specific to this building, delivered before the first shift, acknowledged in writing, and repeated for anyone who has not been on site in the last twelve months.

A working induction covers six things:

Access and egress. Doors, keys, parking, and how to sign in and out.
Building hazards. Asbestos or designated substances where known, confined spaces, live electrical areas, roof limits, hot work restrictions.
Isolation points. Where to shut off water, gas and power in an emergency, and who authorises isolation.
Emergency procedures. Alarm sound, muster point, who to call.
Site rules. Permits required, waste routes, prohibited areas, working hours, tenant constraints.
Reporting. Who to tell about a hazard, near miss, injury or damage, and how quickly.

Keep the induction to one page, issue it with a revision date, and have each worker acknowledge it. The induction is your document — it is the one place where you know more about the site than the contractor does.

What site rules should apply to contractors?

Answer first: the ones that protect people from the building, and the building from the work. Write them down, and enforce them consistently — a rule applied only to some contractors is evidence of nothing.

Sign in at the designated point and carry identification while on site
Permits required for hot work, roof access, electrical isolation and confined space entry — critical
No work in a tenant area without notice and a defined time window
Waste and packaging removed by the contractor at the end of each visit
Barriers and signage around any work area a tenant or the public can reach
Report any damage, spill, near miss or injury before leaving site — critical

Rules about methods — ladder technique, chemical dilution, tool selection — are the contractor's procedures, not yours. Require that they exist; do not rewrite how they work.

Contractor safety: who controls the work?

Answer first: the contractor controls its work; you control the site conditions around it. When those two get confused, both sides lose the record of who decided what.

The dividing line is practical:

You decide: access times, isolation of building services, which areas are out of bounds, sequences that involve tenants, whether work may proceed at all.
The contractor decides: method, tools, crew size, task sequencing, PPE selection beyond your minimum site requirements, and its own supervision.
You both decide: the interface. Who is in the area, what happens if the work releases dust or fume, how a shared corridor stays passable.

The test for a manager is simple. If something went wrong and you were asked "did you tell them how to do it?", the correct answer is no — you specified the conditions and verified their system. If the answer is yes, the liability picture changes.

What happens when two contractors overlap?

Answer first: the overlap becomes a documented coordination task with a named owner, not two crews negotiating in a corridor.

Shared areas are where contractor safety fails most often. A flooring crew and an electrical crew in the same corridor, a window cleaner above a landscaping crew, two trades sharing one hoist: each pair creates hazards neither contractor would have alone. Manage it by scheduling the overlap in writing, telling both contractors who the other is and what they are doing, and recording the coordination you performed. A joint briefing before the shift is the cheapest control available.

The same applies to cleaning work done around other trades — shared corridors, dust, wet floors, trailing leads. Those interface hazards are set out in construction dust cleaning and in cleaning health and safety in Canada.

What records should you keep for each contractor?

Answer first: the verification set, the induction acknowledgement, the permits issued, and any report of a hazard, near miss or injury — filed by contractor and retained for the contract term plus three years as a working minimum.

One file per vendor, one page per visit: the dated verification checklist, the signed induction for each worker, copies of permits issued and closed, a site log entry showing the area worked and anything observed, and an incident or near-miss report filed on the day. The site log matters most, because it is written while memory is intact.

The last row connects to a different process. Recording what you saw is not deciding what caused it, and serious incidents belong to the regulator and specialist investigators. That boundary is set out in incident reporting in managed buildings.

Not regulatory advice. Employer duties, contractor duties, permit requirements and incident thresholds vary by province and by building type. Confirm the applicable requirements with your provincial regulator, and follow the management agreement and the contractor's own procedures where they set a stricter standard.

Where does a manager's role end?

Answer first: at anything requiring a competent person to assess or control the hazard. Confined spaces, live electrical work, gas work, asbestos disturbance, roof access beyond a supervised inspection and hot work on a system you do not own are commissioned, not managed.

Two exceptions are worth knowing: you may refuse access to a contractor who cannot produce the verification set, and you must stop work when you see a condition that endangers life. Stopping work is not supervision — it is the minimum intervention any occupant of a building is entitled to make. Then hand the decision back to the contractor and, where the risk is significant, to the owner.

Frequently asked questions

Does the contractor's safety system replace my own obligations?

No. Both parties carry duties, and the contractor's system covers its own workers and methods. Your obligations concern the premises, the information you provide, coordination with other work, and verification that the contractor is competent.

Can I ask a contractor to leave for an unsafe practice?

Yes. You can refuse or withdraw site access when the verification set is incomplete or a site rule is ignored, and you should record the reason and the date. Do it through the contract and in writing so the decision is reviewable rather than personal.

How often should contractor documents be re-verified?

Insurance and statutory coverage at each renewal, training when personnel or tasks change, and the full verification set at contract renewal. A monthly check of expiry dates in a register catches most lapses before they become a gap in cover.

Do short visits need a full induction?

They need a proportionate one. A contractor attending for twenty minutes still needs access, hazards, emergency procedures and the reporting point — a one-page briefing that takes five minutes covers it and can be acknowledged on arrival.

Who reports an injury to a contractor's worker?

The contractor reports to its own regulator and insurer. The manager records the event in the site log and informs the owner and insurer as the management agreement requires. Never delay the contractor's own reporting while internal questions are answered.

Verification is the part you can prove

The buildings with the fewest contractor incidents are not the ones with the longest rulebook. They are the ones where the same verification set is collected for every contractor, the same induction is delivered every time, and the file is complete when someone asks for it a year later.

NeatScore helps with the site-condition half of that record: scheduled inspections of the areas contractors work in, scored against APPA 1–5 levels, with photos per item, critical items flagged and deficiencies tracked to closure. The walkthrough evidence that an area was left safe sits in the same system as the photographs taken before the work began. Try it free for 14 days, or see pricing.

Preventive maintenance for property managers sets out how contractor work, inspection cycles and records fit together across a portfolio.