What You Owe When You Find Something Dangerous

Why this matters

You were there for something else. The unsafe condition is not what you were called about, not what you quoted, and not what anybody is expecting to pay for. That is exactly why it gets softened: into a recommendation, into a line on an estimate, into something the customer can weigh against a kitchen remodel. A dangerous finding is not an item in a commercial conversation. It carries a duty that exists whether or not you sell anything, and treating it as a negotiating position is the one failure in this whole subject that cannot be fixed with better paperwork afterwards.

The first move, by hazard

Control the condition before you write, quote, or explain. The action is specific to the hazard, and a general instruction to be careful is not one.

Fuel gas odor or a suspected leak. Everyone leaves the building immediately. No switches operated, no lights turned on or off, no phone used inside, no attempt to find the leak from within the structure. Call the gas supplier emergency line and the fire department from outside and well clear. The utility, not you, decides when the building goes back in service.

Suspected carbon monoxide, or occupants reporting headache, nausea or drowsiness that improves outdoors. Get people out into fresh air and call emergency services; treat a symptomatic occupant as a medical call, not a diagnostic one. Do not re-fire the appliance to confirm your suspicion with anybody inside. Carry a personal CO monitor and act on it rather than on smell, because CO has none.

Energized parts exposed, or electricity in contact with water. Keep everyone clear and isolate at the source rather than at the equipment. For your own work on or near energized parts, de-energize, lock and tag, and prove dead before contact under 29 CFR 1910.333(b)(2), using the live-dead-live test sequence written in NFPA 70E-2021, 120.5, which reaches you through your employer's electrical safety program rather than as federal law standing alone.

Stored energy under a cover you are about to open. A spring, an accumulator, a pressurized vessel, a compressor: isolate and release the stored energy under 29 CFR 1910.147 before opening. That standard covers mechanical and stored energy and expressly excludes electrical utilization work at (a)(1)(ii)(C), which is why the electrical case above lives in a different section.

Structural, fall or collapse risk. Clear the area beneath and around it, do not load it further, and do not climb on it to get a better look. Photograph from where you stand.

The duty is separate from the sale

Here is the whole idea in one line: your obligation to disclose and control a hazard does not depend on whether the customer buys the repair, and it does not get smaller because they decline. The commercial conversation about who pays and when can be as difficult as it likes. It happens after and alongside, never instead.

The practical test: if the customer said "do not quote it, do not mention it again," would your behaviour change? If the honest answer is that you would drop it, you were treating a duty as a line item.

What you owe

• A control action appropriate to the hazard, taken before you leave, as above.
• A plain-language statement of what is wrong and what it can do, given to whoever is there, in words with no trade vocabulary in them. Not "the heat exchanger is compromised." "This can put combustion gas into the air you breathe in this house, and you cannot smell the part that hurts you."
• A written record delivered the same day to the person responsible for the property, with the finding, the location, photographs, the action you took, and what has to happen before the equipment goes back in service.
• A physical marker at the equipment so the next person to stand in front of it learns what you learned. A tag, a label, a note at the disconnect.
• Notification of the party who actually controls the risk, which is not always the person who called you.

What you do not owe

The negative half is where shops get this wrong in the other direction, and being clear about it is what makes the duties above sustainable.

You do not owe a free repair. Disclosing a hazard is not the same as accepting responsibility for it, and you should not write it as though it were. Report the condition and what it can do; do not volunteer a cause you have not established. Naming a hazard you did not create does not make you responsible for funding its correction. Shops that feel otherwise start avoiding the finding, which is how a duty quietly turns into a blind spot.

You do not owe a diagnosis outside your competence or license. "This is beyond what I am licensed to evaluate, it needs a structural engineer" is a complete and professional answer. Guessing at somebody else's trade to seem thorough is worse than routing it.

You do not owe a guarantee that nothing else is wrong. You inspected what you inspected. Say what you looked at and what you did not, and resist the pull to imply the rest is fine.

You do not owe silence to keep the relationship comfortable. This is the one that actually costs shops money, because the discomfort is immediate and the exposure is not.

You do not owe an argument. You owe a clear statement, once, in writing. If the customer disputes the finding, you do not need to win. You need the record to show what you found and what you said. See related: Holding Your Diagnosis When a Warranty Inspector Sees It Differently.

When the person who called you is not the person to tell

Tenant occupancy. The occupant needs to know immediately, because they are the one breathing the air or standing next to it. The landlord or property manager needs to know in writing the same day, because they control the repair. Both, not one. Landlord obligations to a tenant around habitability, notice and repair timelines are set by state and often local law and vary widely, including how fast a loss of heat or hot water has to be addressed, so do not tell a tenant what their landlord is required to do - tell them what you found and route them to their own advice.

Utility-controlled equipment. Anything upstream of the meter, and anything the gas or electric utility owns, goes to the utility's emergency line, not into your quote.

Authority having jurisdiction. Whether a contractor may tag equipment out of service, and whether anyone is required to report a specific class of hazard, varies by state, by trade license, and sometimes by local ordinance. In many jurisdictions the tag that carries real authority belongs to the utility or the AHJ and a contractor's tag is advisory. Find out what your license actually authorizes in the states you work in rather than assuming a red tag is a red tag everywhere.

One scope note worth having straight: your obligations under OSHA standards run to your own employees. A homeowner standing in their own basement is outside that jurisdiction entirely. What you owe the customer sits in state tort law rather than in a workplace standard, and both the standard and who it runs to vary by state. It is not a smaller duty for being outside OSHA; it is a different one, and citing a workplace standard at a homeowner is a mistake even when the instruction is right.

The case: a shutdown nobody wanted

A tech is on a routine maintenance visit at a tenanted property. Mid-visit he finds a condition that makes the appliance unsafe to operate. The owner is not on site. The tenant is.

He shuts the equipment down and secures the isolation so it cannot be casually restored, tells the tenant in plain words what he found and that it is not to be run, and takes three photographs: the condition itself, a wider frame showing where it is, and the tag on the isolation. Then he calls the property manager from the driveway rather than sending it to email and hoping.

The manager asks him to put it back in service until the next budget cycle. He declines, and the sentence he uses is worth stealing: "I can't return it to service, and if it is restored by anyone else I'll need that on the record as your decision, not mine." He quotes the correction at 6.0 hours, which the manager does not approve that day.

Before he leaves the property he sends one written notice, same afternoon, to the manager, with the tenant copied: the finding, the location, the three photos, the fact that the equipment was shut down and tagged, the 6.0-hour correction quoted, and one line stating that the equipment is not to be returned to service until the correction is made. His own file gets the same document.

Count what that visit produced: one control action, one plain-language conversation with the occupant, one phone call to the responsible party, one written notice delivered the same day to two recipients, and one physical tag. Five artifacts, none of them a sale.

Two days later the manager approves the work. That is the common ending and it is not the point. The point is what the shop's position would have been had the manager instead sent somebody to restore service: a dated notice, sent before anything happened, saying exactly that this must not be done. Nothing produced after the fact substitutes for that.

What would have changed the tech's handling: if the finding had been a durability issue rather than a safety one - a component wearing out, an efficiency loss, a leak that damages nothing but itself - none of the above applies and it is a normal declined-recommendation conversation, documented as one. See related: How to Document a Recommendation That Was Declined. The gate is whether continued operation can hurt somebody or start a fire, not whether the repair is urgent in a commercial sense.

Where this goes wrong in the field

The failure is almost never a tech who does not recognize a hazard. It is a tech who recognizes it, says it clearly on site, and then writes an invoice that reads "recommend repair, 6.0 hours." Six months later that document is the only thing that exists, and it describes a sales opportunity rather than a hazard. The tell is that the written record uses softer language than the driveway conversation did. If your written finding would not alarm a reader who was not there, it does not match what you actually saw.

Verifying you discharged this

• Is the equipment in a state where a resident, a cleaner or a curious child cannot casually put it back in service?
• Does the occupant know, in words containing no trade vocabulary?
• Does the party who controls the repair have it in writing, dated today?
• Do the photographs show the condition, its location, and the action you took?
• Does the written record use the same strength of language you used out loud?
• If somebody restores service tomorrow without you, does your record make clear whose decision that was?

References

• 29 CFR 1910.333(b)(2), safety-related work practices for work on or near energized electrical parts, general industry; the construction counterpart for lockout and tagging of circuits is 29 CFR 1926.417
• 29 CFR 1910.147, the control of hazardous energy, for mechanical isolation and stored energy, with the electrical utilization carve-out at (a)(1)(ii)(C)
• NFPA 70E-2021, 120.5, the live-dead-live proving sequence, binding through an employer electrical safety program or contract rather than on its own
• Confirm tagging authority, reporting duties and license scope with your state licensing board and your authority having jurisdiction; these vary by state and by trade
• See related: Documenting the Unsafe Condition You Found; When to Disable Unsafe Equipment and How to Communicate It; Documenting a Refused Hazard Repair to Protect Everyone