How to Get a Customer to Sign Off a Job (Trades, NZ)
- A ten-minute walk-through at job end can stop disputes that leave invoices unpaid weeks later.
- Aftercare is praised in only 2.5% of positive plumber reviews and 2.2% for electricians, so it stands out.
- A signed walk-through record ends most disputes the moment it exists, protecting both invoice and reputation.
The job is finished. The tools are in the van. The customer is at work, or on the phone, or standing in the doorway saying “looks great, send me the invoice”. Three weeks later the invoice is unpaid because a cupboard door does not close properly, and the customer has decided that is your problem, and that they will pay when it is fixed.
That cupboard door was always going to be there. The only question was whether you found out on the day, with the tools still in the van, or three weeks later with the invoice held hostage.
Sign-off is a walk-through, not a signature
Most tradies think of sign-off as getting a name on a form, and so they skip it, because asking someone to sign a form feels like asking them to sign a contract. It is not that. Sign-off is ten minutes of walking the customer through what was done, in the order the quote listed it, and asking two questions: is there anything you expected that you do not see, and is there anything you see that you did not expect.
The signature at the end just records that the walk-through happened and what was said.
How to run it
Book it. When you confirm the start date, tell the customer the job will finish with a short walk-through and ask them to be there for the last fifteen minutes. If they cannot, agree who will stand in, or agree to do it by video call with photos sent afterwards.
Walk the quote. Take the quote or the work order and go through it line by line. “Line three, the two double power points in the lounge: here and here, both tested.” Showing the work against the document is what turns a vague “looks good” into an actual acceptance.
Show the tidy-up. Across 20,286 publicly posted reviews of NZ electricians, plumbers and painters, tidiness and clean-up is praised in 15.3% of positive plumber reviews and 15.0% for electricians. It is a smaller share than quality or politeness, but it is the thing people mention when the job was otherwise unremarkable. Point at the clean floor. It is part of the job, and it is the part they will look at after you leave.
Ask the two questions. Anything missing. Anything unexpected. Then wait. Most customers will say no to both. The ones who say yes are telling you something you want to hear now, not in three weeks.
Write down the answers. If there is a defect or a snag, write it on the form with a date you will fix it by. If the customer asked for extra work during the job, confirm it was agreed and that it will appear on the invoice. If there is nothing, write “no defects noted”.
Get the name and the date. Not a legal signature, just confirmation the walk-through happened and what was said. Give them a copy, or a photo of it.
What to say when there is a snag
“Good, I would rather know now.” Then fix it on the spot if you can, or write it down with a date. A customer who raises a snag at the walk-through and sees it taken seriously is more likely to leave a good review than one whose job went perfectly, because they have seen how you handle a problem.
Why it protects the invoice
The invoice goes out the same day as the walk-through, and it references the completed sign-off. If a customer later disputes the work, the form shows they walked it, what they raised, and what was agreed. If they raised nothing, the form shows that too. It is not a weapon; it is a record, and most disputes end the moment one exists.
It is not a weapon; it is a record, and most disputes end the moment one exists.
Why it protects the review
Aftercare and follow-up is praised in only 2.5% of positive plumber reviews and 2.2% for electricians. Almost nobody does it, which means a business that does stands out immediately. The walk-through is the first half. The second half is a message a week later: “Everything still working as it should? Give me a call if not.” Customers who get that message leave reviews. Quality scores 98.2 out of 100 for plumbers; the work is rarely the problem. What customers remember is being asked.
A form for the van
The job completion and sign-off form in our resource library is a free PDF and Word template: the walk-through checklist against the quote lines, a defects and snags box with a fix-by date, extras confirmed, and the sign-off block. There is a practical completion page for bigger jobs. Keep a pad in the van and use it every time.
The ten minutes at the end of the job are the cheapest ten minutes you will spend on it.
What to do on Monday
- Book the walk-through when you confirm each start date and ask the customer to be there for the final minutes.
- Print copies of the job completion sign-off form and keep them in the van for every job.
- Walk the next finished job through the quote line by line and ask what is missing or unexpected.
