What the research actually found
In the early 1990s, Kahneman, Fredrickson, Schreiber and Redelmeier asked volunteers to hold a hand in cold water. One trial was shorter. The other was longer, but the final stretch was slightly less cold. Most people preferred to repeat the longer one. They had judged it by how it ended, not by how much of it they endured.
Redelmeier and Kahneman saw the same pattern in the mid 1990s, when patients rated a medical procedure. Their memory followed the worst moment and the final minutes, and the length of the procedure barely mattered. That is the peak end rule, and it has a companion idea: duration is often neglected when people look back.
Where it holds up and where it stretches
Those studies used short experiences with a clear intensity curve. A week-long bathroom renovation is messier. Clients remember many moments, and a few of them may matter more than any single peak. Treat the rule as one tool from marketing psychology, a good question to ask, not as a law that predicts a satisfaction score.
It does explain something every owner has seen. A job can run smoothly for weeks and still leave a sour taste because the last phone call went badly. It can also run a little late and still earn a referral because the finish felt generous. Plan the finish the way you plan the start, and let conversion rate optimization include the steps after the sale, not only the ones before it.
Finding the peak in an ordinary job
Say a Chilliwack roofer replaces a roof after a wet autumn. The homeowner will not remember the tear-off schedule. They will remember the moment the crew showed them photos of the old decking before covering it up, or the morning they came home to a spotless yard. That moment is the peak, and the roofer can choose it.
A peak does not need a budget. A physio clinic in Langley might make the first week of rehab feel like progress by marking a small milestone on a printed card. A farm gate stand might hand over a free taste of something new with each box. Ask what a client would tell a friend, then make that moment on purpose. A happy client who retells it is honest social proof you never had to invent.
The ending is usually admin
For most service businesses the ending is not the work. It is the invoice, the receipt, the booking confirmation or the silence afterwards. A cold, confusing invoice with a payment link buried in the footer can undo a good job. A short, warm note that explains what was done and what to do next can quietly rescue an average one. The same goes for the confirmation page on a new website, which is the last screen a visitor sees.
This is where email marketing and a tidy customer record earn their keep. A simple follow-up that arrives when the job is finished, in plain language and with the person's name spelled right, is a designed ending. A CRM that remembers what was promised keeps that ending from being generic.
Where the rule can backfire
It is tempting to think a great ending cancels a poor middle. It does not, and using it that way is a form of manipulation, close cousin to false urgency. If a client waited three weeks with no update, a nice thank-you card is not an answer. Fix the problem, then polish the ending.
Be careful with fake peaks too. A surprise discount that appears only when someone threatens to leave teaches clients to threaten. An honest high point is real: a fast reply, a clear explanation, a small extra you would be happy to repeat. The growth check on this site can show which stage of your customer journey loses people.
- List the last three touches a client gets and rewrite the weakest
- Choose one genuine high point per job and plan it in advance
- Move the payment link and next step to the top of your invoice email
- Send a thank-you within a day, in plain words, from a real person
- Ask one open question at the end: what almost went wrong?
Build the ending into your systems for 2027
Treat 2027 as a planning point, not a deadline. A lot of the ending can be automated without losing warmth: triggered emails, a note added to the client record, a calendar nudge for a check-in call. The goal is a repeatable finish that a busy week cannot skip. Keep a person responsible for the words, even when software sends them.
- 01Draft one finishing email per service and read it aloud
- 02Add a check-in reminder to your CRM for every closed job
- 03Review a sample of endings each quarter and fix the weakest
Questions & answers
It is the finding that people judge a past experience mostly by its most intense moment and by how it finished. How long it lasted, and the average of everything in between, count for much less than most of us expect.
Partly. A visit is short, so the rule is a reasonable guide: a smooth finish, such as a clear confirmation page after a booking, helps. But a confusing middle still costs you, so fix navigation and forms as well.
A good ending helps, but it does not cancel a real failure, and clients can tell when it is used as a cover. Own the problem, put it right, and then make the finish warm and clear.
Start with the invoice and the first follow-up message, because they are easy to change and every client sees them. Then pick one genuine high point per job. The conversion rate calculator on this site can show what repeat work is worth.
