The Pre-Existing Condition and How to Hand It Back
Why this matters
Finding a pre-existing problem does not make it yours, and it does not keep it from becoming yours. Between those two facts sits a step most shops skip. Completion is read, by customers, adjusters and eventually by anyone reviewing the file, as your professional statement that the thing you worked on is in acceptable shape. Every condition you saw and did not hand back in writing before that moment is at risk of being read into that statement, by a customer, an adjuster, or anyone reviewing the file later. Discovery is not handback. This is what handback actually requires, and the one category of condition you are not permitted to hand back at all.
The case
A three-truck plumbing shop quotes a water heater changeout at 3.5 hours. Standard work, existing appliance at end of life, nothing unusual on the phone.
The tech arrives, and before touching anything he finds three conditions that predate him:
- The temperature and pressure relief discharge is wrong. It leaves the valve, turns upward, and terminates through a reducing fitting into a smaller line above floor level.
- The drain pan has corroded through and has no drain line to anywhere.
- The branch shutoff will not close fully. He has to isolate at the main to do the work at all.
He quotes two of them on the spot: pan and drain line, 2.0 hours; shutoff replacement, 1.5 hours. The customer wants the heater today and declines both. That is a legitimate answer and a common one.
The third item is not like the other two, and the tech treats it differently. He tells the customer the relief discharge has to be corrected as part of the installation, 0.75 hours, or he cannot complete the job. Not as an upsell and not as a negotiation.
Why the third one is not decline-able
Here is the line, and it is the sharpest thing in this article.
A pre-existing defect can be handed back. A pre-existing condition that defeats a protective function on the equipment you are installing cannot be, because finishing the installation would make you the shop that put a new appliance into service through a relief path that may not relieve. That is not a scope question and it does not trade against the customer's budget or their timeline.
A temperature and pressure relief valve exists to open before a vessel becomes a hazard, and it can only do that if the discharge is full size for the valve outlet, unobstructed, without a trap, terminating downward at a location where a discharge of near-boiling water and steam cannot scald anyone. A reduced discharge line is a restriction on a safety device, and the specific plumbing code requirements for that discharge come from the code your jurisdiction has adopted, in the edition it adopted, so read yours rather than a general rule.
The rule extends beyond this trade and this appliance. A disabled interlock, a jumpered limit, a missing bonding path, a blocked combustion air opening, a defeated pressure switch: the moment your work brings equipment back into service through one of those, the commercial conversation is over and the finding goes in writing whether the customer wants it there or not.
Do not test-lift a relief valve on an appliance whose discharge is defective in order to demonstrate the problem to a customer. You would be releasing scalding water into the room you just identified as the reason the discharge is wrong. Correct the discharge, then test if your procedure calls for it, with the outlet directed away from anyone and nobody standing in the discharge path.
Before the old appliance comes apart: on an electric unit, open the disconnect, lock and tag it under 29 CFR 1910.333(b)(2), and prove the elements dead with a meter checked live on a known source immediately before and after; on a fuel-fired unit, close the appliance gas valve. Then drain the tank to a termination that can take near-boiling water, and let the contents cool or run to a safe drain rather than into a bucket at your feet, because the stored water is at the setpoint the appliance was running at when you arrived.
What actually counts as handing back
The customer declined items 1 and 2. Whether that decline sticks depends on four properties of the record, and each one fails in a specific, common way.
Named specifically. "Old plumbing" hands back nothing. "Drain pan corroded through, no drain line to any termination" hands back a condition. Vague findings hand nothing back in the forum that decides most of these, which is a reasonable person reading the document a year later.
Dated and delivered. It has to be on the document the customer received on the day, not in an internal note, not in the tech's app, not in a photo on a phone. The delivery is what makes it a handback rather than a private observation.
Carrying the customer's decision, attributed. Declined, deferred or approved, with who said it. "Recommended, declined by homeowner on site" is a handback. "Recommended" alone is a shop talking to itself.
Supported by an image of the condition as found, taken before your work started. This is the field that answers the question that is actually asked in disputes, which is not "did you tell me" but "was it already like that."
Miss any of the four and what you have is a finding. Have all four and you have what this article calls a handback: a record that answers the questions a dispute actually asks. Whether it changes your legal position is a state-law question and is covered further down. The unit of analysis is each individual condition, not the job: three findings need three handbacks, and a shop that writes one summary line covering all three has handed back none of them cleanly.
Fourteen months later
The pan fails completely and water reaches a finished floor. The customer's opening position is entirely reasonable: you were the last plumber in that space, you replaced the appliance sitting in that pan.
The pan was handed back. Named, on the invoice, dated, declined by the homeowner with the homeowner's name beside it, photographed as found. The conversation lasts one exchange and ends with the customer buying the pan and drain they declined, which is not a happy outcome but is a survivable one.
The shutoff was not. The tech mentioned it, quoted it verbally, and never wrote it down anywhere the customer saw. What the customer remembers is a plumber who turned the water off at the main for a routine job and did not explain why, and their read of that is that something was wrong with their plumbing that nobody told them about. The shop had no answer that did not depend on its own memory.
Notice what the shutoff cost them. It did not fail. It did not flood anything. It cost them the credibility they needed for the pan conversation, and it cost them the account, on a 1.5 hour item that was quoted out loud and never written down.
What the shop found when it counted
They pulled a year: 96 jobs where a tech recorded a pre-existing finding of any kind. Of those, 71 findings were written on the customer's invoice with a decision attached, and 25 lived only in internal notes. Over the following 18 months, 6 disputes were raised citing a pre-existing condition. Five of the 6 came from the notes-only group of 25, one from the invoice group of 71.
That is a 20% dispute rate on the notes-only jobs against 1.4% on the documented ones, roughly a fourteenfold difference. Read it with the caveat attached: 96 jobs and 6 disputes is a small sample, nobody assigned jobs to the two groups, and it is entirely plausible that the messier jobs and the more difficult customers are also the ones where a tech skipped the write-up, which would inflate the gap. The number is not proof of anything on its own.
What survives the caveat is the mechanism, and the mechanism does not need statistics. In every one of the 5 notes-only disputes, the shop knew it had found the condition and could not show the customer had been told. There is no version of that conversation that goes well, and the fix costs about 40 seconds per finding.
What changes the answer
A commercial or institutional customer with a facilities department. The handback still goes on the document, but it also goes to a named person, because a work order accepted by a technician on site is not a decision made by anyone with authority to decline capital work. Send it to whoever can say yes.
A tenant-occupied property. The person present is not the person who owns the condition. A handback delivered to a tenant is not delivered to the owner, and this is the most common way a good record fails to protect anybody.
A condition that will worsen materially before the next visit. Deferral is a reasonable customer choice for a static defect and a poor one for an advancing one. Where the condition is advancing, say what the interval is that concerns you and why, rather than leaving "eventually" to be interpreted.
Anything involving a life-safety function, which is the non-negotiable category above and does not become negotiable because the customer is sophisticated, in a hurry, or a good account.
The legal shape you do not resolve yourself
Whether and when acceptance of completed work limits a customer's later claim, what notice a customer must give you before suing, whether you have a statutory right to cure a defect before a claim proceeds, and how long after completion a claim can be brought at all, are all matters of state law, and several of them turn on whether the customer is a consumer or a business. Statutes of repose in the construction context vary widely between states, in both the length and the event that starts the clock, and the spread is wide enough that a typical figure is not worth carrying in your head, and both the length and what starts the clock vary by state. Home improvement contract requirements are their own separate body of state rules with their own consequences for non-compliance.
None of that is settled from a reference card, and this article is not the place to try. What it can tell you is the operational truth underneath: whatever the legal position turns out to be, it will be argued over a written record you either created on the day or did not.
How to verify you got this right
- Pull five recent invoices with findings and check all four properties on each finding individually. Most shops discover they have three of four, usually missing the attributed decision.
- Ask a tech what happens to a finding the customer declines verbally. If the answer is "I note it," find out where, and whether the customer ever sees that place.
- Check whether your findings are individually itemised or summarised in one line. One line covering three conditions is the most common defect and it is invisible until it matters.
- Take any finding from a year ago and try to produce it in under five minutes with its photo and the customer's decision. That five-minute test is the whole system, and everything else in this article exists to pass it.
References
- 29 CFR 1910.333(b)(2), selection and use of work practices for electrical work
- The plumbing code adopted by your authority having jurisdiction, in the edition it has adopted, for relief valve discharge piping requirements
- See related: Documenting a Customer Refusal the Right Way
- See related: The Existing Conditions Photo Record
- See related: What You Take On When You Touch Somebody Else's Work