How fast should you reply to a new lead? (And what you lose in the evenings and at weekends)

Reply to a new lead within 5 minutes if you can, and within the hour at the latest. The research below shows that the chance of turning an enquiry into a conversation drops sharply after the first few minutes and keeps falling for every hour you wait.

Picture a typical case. Someone messages you on WhatsApp at 9:40 pm asking for a price and a free slot this week. You see it the next morning at 9:30, between two appointments, and reply at lunchtime. By then they have written to two other businesses, and one of them answered in ten minutes.

Nobody did anything wrong here. This is what a normal day looks like for any clinic, practice or agency that gets more enquiries than it has people to answer them. This article covers what is known about response time, where the losses come from and how to measure them in your own business without buying anything.

What the numbers say about response time

The most cited study on the topic was published in Harvard Business Review in 2011 ("The Short Life of Online Sales Leads"). The authors looked at how fast companies answered enquiries they received online. The average time to a first reply was 42 hours, and almost a quarter of companies never replied at all.

The difference in results was large: companies that replied within the first hour were nearly 7 times more likely to qualify the lead than those that replied after an hour, and more than 60 times more likely than those that waited a day or longer.

An earlier study, the Lead Response Management study (Oldroyd, 2007), found an even steeper drop in the first minutes: the odds of reaching the person who enquired fell roughly 100 times when the reply came after 30 minutes instead of within the first 5.

Both studies looked at companies in the United States, not at clinics in Romania or elsewhere in Europe, so do not read them as an exact promise. What every study agrees on is the direction: the first minutes matter far more than they seem to, and after a few hours an enquiry is already half lost.

Why evening and weekend enquiries are the ones you lose

People write when they have time: in the evening after work, at lunch, on a Sunday. That is exactly when reception is closed or busy with the patients in the room. The result is a pattern you can see in almost any inbox:

• enquiries that arrive after 7 pm only get an answer the next day, after the person has already asked elsewhere;
• Friday evening and weekend messages pile up and get answered on Monday, usually in a hurry;
• simple questions (price, opening hours, parking) eat up staff time while the important ones ("I want to book") wait in the queue;
• when there are several channels (WhatsApp, email, the website form, Instagram), one of them is always forgotten.

What it costs, calculated for your business

You do not need an American study to find out whether this happens to you. You need 7 days and a simple table. For one week, write down at the end of each day:

• how many new enquiries you received, across all channels;
• how many got a reply within 5 minutes, within an hour, later, or never;
• what a new client is worth to you on average.

From those three lines you can estimate how many clients you lose each month to response time alone. It will not be an exact figure, but it will be your figure, not someone else's. If you would rather not do the maths by hand, we will do it for you: fill in the table and you get the estimated amount at the end.

What you can change tomorrow

Before any automated solution, a few changes cost nothing but attention:

• one place where every enquiry shows up, not four apps open on four phones;
• a short confirmation sent straight away that says when the full answer will come;
• ready answers for the 10 questions you get again and again (price, duration, preparation, opening hours, address);
• a clear rule for who replies in the evening and at weekends, even if it is just one check at 9 pm;
• one qualifying question asked early (which service, for when), so the booking happens in the first exchange.

These changes reduce the loss but do not remove it: someone still has to be available at the moment the client writes.

A fast reply is not enough: what a good reply looks like

Speed gets you into the game, but it does not win the client on its own. A "Hello, we will get back to you" sent in 30 seconds is almost as weak as a reply the next day, because the person still does not have what they asked for. A good reply usually has three parts:

• the actual answer to the question: the price, the duration, whether you offer the service, with your business's real figures;
• one question that moves the conversation forward: which service exactly, for when, whether they decide alone;
• a clear next step: two free times to choose from, not "call us when you can".

Tone matters too. If you used a formal form of address in the first message, keep it to the end. If the person writes in English, reply in English, service names included, not with half a sentence copied from a Romanian price list.

So does what you do not say. A good reply does not promise results, does not guess a diagnosis from two lines and does not confirm a time you have not checked in the calendar. "Let me check and come back to you in a few minutes" beats a booking that overlaps with another one.

To see your replies the way a client does, message yourself from another number on a Thursday evening and on a Sunday morning. Note how long the first reply took, whether it included the price and whether you were offered a time. Three test messages tell you more than any report.

When an automatic reply makes sense, and when it does not

An assistant that replies automatically makes sense when you get more enquiries than you can follow and a new client is worth hundreds or thousands. If you get three messages a week, a phone you check often is enough.

If you choose an automated assistant, look at a few things before the price: whether it answers from your real information (services, prices, rules), whether it knows when to stop and hand the conversation to a person, whether it books straight into your calendar and whether it tells the client openly that they are talking to a virtual assistant, as the EU AI Act requires.

For clinics, law firms or any field with sensitive topics, what it does not do matters as much: it gives no medical or legal advice, promises no results and passes any urgent situation to a person immediately.

In short

New enquiries go cold in minutes, not days. Most are lost in the evening, at weekends and on the channel nobody watches. Measure one week, find out what it costs you, and only then decide whether you need another person, better rules or an assistant that replies for you.

Sources

• Oldroyd, McElheran, Elkington, "The Short Life of Online Sales Leads", Harvard Business Review, 2011
• Oldroyd, "Lead Response Management Study", InsideSales.com / MIT, 2007