The short answer: within five minutes. Research on lead response times found that contacting a web lead within 5 minutes instead of 30 makes you roughly 21× more likely to qualify it — and the odds keep falling with every minute after that. If you take one thing from this page: the business that replies first usually wins, and "first" now means minutes, not hours.
That's a problem, because most small businesses reply in hours — or the next day. Not from laziness; you're on a job, with a customer, or asleep. But the lead doesn't know that. They filled out three forms, and they're going with whoever answers like a human first.
What the research actually says
Two findings get cited over and over because they're blunt:
- The Lead Response Management Study (Dr. James Oldroyd) found the odds of qualifying a lead drop off a cliff after the first few minutes — contacting within 5 minutes versus 30 was about 21× more effective at moving the lead into a real conversation.
- A widely-cited Harvard Business Review analysis ("The Short Life of Online Sales Leads") found firms that tried to reach a lead within an hour were roughly 7× more likely to have a meaningful conversation with a decision-maker than firms that waited just an hour longer — and dramatically more than the many companies that took over a day (or never replied at all).
The mechanism is simple. A fresh lead is still at their screen, still thinking about the problem, and still undecided. Reach them then and you set the agenda. Reach them at 6pm when you finally check the inbox and they've already booked someone else.
Why "just reply faster" doesn't work
Telling a busy owner to answer every lead in five minutes is useless advice — it ignores why it isn't happening. You can't watch an inbox while you're under a sink, mid-appointment, or off the clock. Hiring someone to do nothing but watch for leads doesn't pencil out for most businesses. So the window gets missed, consistently, and it reads as a "we're not getting good leads" problem when it's really a speed problem.
The fix isn't more discipline. It's removing yourself from the critical first step.
The fix: automate the first reply
Speed-to-lead is the one place automation pays back almost immediately, because the task is narrow and the upside is huge. The pattern looks like this:
- Catch every lead. Your contact form, DM, or "text us" number sends each new inquiry to a single workflow the instant it arrives.
- Draft a real reply in seconds. AI writes a personalized first response — using the lead's name and what they actually asked — not a canned "we got your message" autoresponder.
- Approve or auto-send. The draft lands in your inbox to tap-send, or goes out automatically for routine inquiries. Either way the lead hears back inside the five-minute window.
- Flag the big ones. A good setup tags urgent or high-value inquiries (catering, large jobs, deadlines) so you reply to those personally, first.
This is the single highest-ROI automation most service businesses can turn on. So we give a working version of it away.
🎁 Free: the Speed-to-Lead Responder workflow
A ready-to-import n8n workflow — webhook → AI draft → ready-to-send reply, with high-value leads auto-flagged. Credentials left blank, setup notes on the canvas. Wire it in about three minutes.
Get the free workflow →What "good" looks like
You don't need to be perfect — you need to beat the competitor who replies tomorrow. A realistic target for a small business:
- First response: under 5 minutes, 24/7. Automated draft or auto-send handles nights and weekends.
- Every lead gets a reply. No inquiry sits unread because you were busy the moment it came in.
- High-value leads get a human fast. The system buys you the first touch; you close the ones worth closing.
Hit those three and you'll feel it in booked jobs within weeks — not because you're getting more leads, but because you're finally keeping the ones you already get.
Do it yourself, or have it done
If you're hands-on, start with the free Speed-to-Lead workflow, then grab the vertical packs (realtors, restaurants, agencies) tuned to each industry's qualifying questions. If you'd rather it just work — wired to your phone, CRM, or booking system, with nothing for you to maintain — book a free 20-minute call and we'll set up your speed-to-lead first. Done-for-you installs start at $497.
Try it: the Lead-Response ROI calculator — estimate what slow replies cost you in 30 seconds.
Related: small-business automations that pay for themselves · AI for home services · the real ROI of AI voice agents.