Client Acquisition
How Fast Should You Respond to a New Lead?
Quick answer
Respond within minutes if you can, and within the hour at most. Harvard Business Review research found firms that tried to contact leads within an hour were nearly seven times as likely to qualify them as firms that waited even an hour longer, and more than 60 times as likely as firms that waited 24 hours or longer.
What the research actually says
The most cited study on lead response time was published in Harvard Business Review in March 2011 by James Oldroyd, Kristina McElheran and David Elkington. It is worth reading what it found, because the numbers are often repeated loosely.
The researchers audited 2,241 US companies by sending each a web-generated test lead. 37% responded within an hour and 16% within one to 24 hours. 24% took more than 24 hours, and 23% never responded at all. Among companies that responded within 30 days, the average response time was 42 hours.
In a separate study of 1.25 million sales leads received by 29 business-to-consumer and 13 business-to-business companies in the US, firms that tried to contact potential customers within an hour of receiving a query were nearly seven times as likely to qualify the lead as those that tried even an hour later. They were more than 60 times as likely as companies that waited 24 hours or longer. The authors defined qualifying a lead as having a meaningful conversation with a key decision maker.
Two cautions. The research is from the US and is more than a decade old, and it measured qualification rather than sales. Even so, its message is still useful for any business that pays for enquiries: respond while the interest is fresh.
Speed to lead is the time between a person enquiring and your business making meaningful contact with them. It is one of the few growth levers that costs almost nothing to improve.
Why leads go cold in service businesses
The HBR authors listed reasons companies respond slowly, including retrieving leads from CRM databases daily rather than continuously, and sales teams focused on generating their own leads rather than reacting to customer interest. Service businesses have their own versions of the same problems:
- The owner is the only person who calls leads back, and the owner is with a client all day.
- Enquiries arrive in several places: a web form, Facebook messages, Instagram, email and the phone, and nobody checks all of them.
- Leads come in at night and on weekends, when the office is closed.
- There is no follow-up after the first attempt, so a missed call becomes a lost lead.
If this sounds familiar, more ad spend will not help much. You will pay to generate enquiries that then wait.
What a fast response looks like
A fast response does not mean you personally pick up the phone within 60 seconds every time. It means every enquiry gets a useful, personal-feeling acknowledgement straight away and a clear next step soon after. Here is a simple sequence that suits most service businesses.
- Instant acknowledgement. As soon as the form is submitted, send a short email or SMS that thanks the person by name, confirms what they asked about and tells them what happens next.
- A first useful reply within minutes. This can be a person, or an AI assistant that is clearly identified as one. It answers basic questions and asks one or two qualifying questions, such as what the person needs and how soon.
- A booking link. Give qualified people a way to book a call or appointment themselves, so the next step does not depend on phone tag.
- A human call within business hours. For high-value services, a real conversation still matters. The aim is to make it within the hour during business hours.
- Follow-up for people who do not book. A short series of helpful emails or texts over the next week catches people who were interested but busy.
The targets below are our recommended starting points, not research findings. Adjust them to your business.
| Stage | Recommended target | Who or what does it |
|---|---|---|
| Acknowledgement | Immediately | Automation in your CRM |
| First useful reply | Within 5 minutes | A team member or a clearly labelled AI assistant |
| Human contact | Within 1 hour in business hours | Owner or team member |
| After-hours enquiries | First thing next business day | Owner or team member, with the booking link already sent |
| Follow-up if no booking | Over the following 7 days | Email and SMS sequence |
Staying compliant while you move fast
Automated follow-up is where speed and the law meet. The ACMA warns that so-called welcome journeys are not exempt from the spam rules, because they often contain commercial content, and that it sees businesses without adequate consent and unsubscribe processes for automated SMS and email welcome journeys sent to new and prospective customers.
Under the Spam Act, the ACMA says you need consent before sending marketing messages, and each message must identify you, include your contact details and make it easy to unsubscribe. A person can give express consent by filling in a form or ticking a box on a website. Practical steps:
- Put clear consent wording on every enquiry form, saying the person agrees to be contacted by email and SMS.
- Record when and how each person opted in.
- Include a working unsubscribe option in every message. The ACMA notes that people generally cannot reply to an SMS that uses a business name as the sender ID, so "reply STOP" only works if the number can receive replies.
If an AI assistant replies to leads, the OAIC says public facing AI tools such as chatbots should be clearly identified as such to customers. Say it is an assistant, and make it easy to reach a person.
How to measure your own speed to lead
You do not need software to find out where you stand. Take last month's enquiries and, for each one, note when it arrived and when someone first made real contact. Then work out three numbers:
- The median time to first contact.
- The share of enquiries contacted within an hour.
- The share never contacted at all.
Then compare response times for the enquiries that became clients with those that did not. Once you know your numbers, set a target and review it weekly. Better tracking also shows which ads bring the leads worth calling first, which we explain in how to tell which ads bring clients.
Example (hypothetical): an electrician's business finds that half its web enquiries wait until the evening for a callback. It adds an instant SMS with a booking link and a midday callback block. The owner can now see, week by week, whether faster contact changes how many enquiries become booked jobs.
How Noah handles it
Noah Oloja built the AI marketing team behind SyncSkills, the education business he co-founded with Tayo Oloja, after he became the bottleneck: every lead depended on him or Tayo. He connected the ads, AI conversations, CRM and email and SMS follow-up into one system, using GoHighLevel for CRM and follow-up. From $40,590 in Meta ad spend, SyncSkills' own ads produced 9,486 leads at an average cost of $4.28 per lead and a 9.6x return on ad spend, according to SyncSkills' own CRM, payment and ad accounts as of July 2026. Your results depend on your business.
Frequently Asked Questions
How quickly should you respond to a lead?
As fast as you can, ideally within minutes, and within the hour at most during business hours. Harvard Business Review research found firms that tried to contact leads within an hour were nearly seven times as likely to qualify them as firms that waited an hour longer.
What is a good lead response time for a small business?
A practical target is an instant automated acknowledgement, a useful first reply within five minutes, and a human call within an hour in business hours. These are recommended starting points, so measure your own numbers and adjust.
Is it OK to use AI to reply to new leads?
It can be, if the assistant is clearly identified as AI, gives accurate information, and hands over to a person when needed. The OAIC says public facing AI tools such as chatbots should be clearly identified to customers.
Do automated follow-up messages need consent?
Yes, if they are commercial. The ACMA says welcome journeys are not exempt from the spam rules, so you need consent, sender identification, contact details and a working unsubscribe option.
Why do my leads go cold?
Usually because they wait. Common causes are a single person handling all callbacks, enquiries arriving in several inboxes, after-hours enquiries, and no follow-up after the first attempt.
Next step
If leads come in but go cold before you follow up, The AI Marketing Team Accelerator is where service business owners build their own AI marketing team, including AI conversations that reply to and qualify leads, and email and SMS follow-up that nurtures leads into booked calls, with Noah's team beside them. For the bigger picture, read how to get consistent clients without relying on referrals.