MIT and InsideSales.com measured it. A lead contacted within 5 minutes is 21x more likely to turn into a booked appointment. The average service business calls back in 43 hours.
For Ad & Social Media Agencies
At 43 Hours, Your Client Is Answering Leads That Already Hired Someone Else. MangoTeq Sentinel Answers Them in Under Five Minutes.
The video explains every “the leads aren’t converting” conversation you’ve ever had.
Just Hit Play
Watch: “Why Your Leads Aren’t Converting Fast Enough”
For agencies managing £10K+ per month in client ad spend
MIT and InsideSales.com tracked lead response times across thousands of businesses. A lead contacted within 5 minutes is 21 times more likely to turn into a booked appointment. The average service business calls back in 43 hours. Your clients' campaigns are generating real leads. The follow-up is losing them.
21x
More likely to turn into a booked appointment
43hrs
Average service business lead response time
Month 3–4
When most agency clients give notice and leave
The documented cost of a slow follow-up.
→A lead contacted within 5 minutes is 21 times more likely to turn into a booked appointment than one called back after 30 minutes. MIT and InsideSales.com, Lead Response Management study.
→The average SME service business contacts new leads 43 hours after they enquire. That gap is the only reason their conversion rate looks the way it does.
→Acquiring a new client costs 5 to 25 times more than keeping one. A 5% improvement in retention can increase profits by up to 95%.Harvard Business Review / Bain & Company.
→One churned client at £3,000 a month is £5,600 in future profit gone at month four. Three a year is £16,800. The cause, in almost every case, is a follow-up gap your agency couldn’t see.
What agencies ask before they start.
Straight answers.
The MIT and InsideSales.com study measured response times across thousands of businesses. The average was 43 hours, during business hours only. Evenings, weekends, and bank holidays were almost entirely unprotected. Most business owners believe they respond faster than they do. The numbers say otherwise, every time.
Every message goes out in your client’s name, written in their voice, from their number or email address. MangoTeq is not visible to the lead at any point. Your client presents it as part of their own operation. MangoTeq never contacts your clients directly.
No. Sentinel is a managed service, not a platform. Every message is written specifically for your client before anything goes live. MangoTeq operates the follow-up. The lead receives a relevant, timely reply. Nothing goes live until it has been written and reviewed for that specific client.
GoHighLevel and HubSpot are platforms. Someone has to configure them, monitor them, and keep them running. The failure mode is human: the setup drifts, nobody checks it, the follow-up stops. Sentinel is managed by MangoTeq. The follow-up happens regardless of what else is going on in your client's business. Every lead is tracked and reported so your agency can see exactly what happened to each one.
Ryan Unrau ran into exactly this with a £40 million roofing company. 2,000 leads, three years old, no follow-up, written off. His team followed up systematically across multiple channels. 40 appointments booked. 4 jobs closed at around £12,000 per job. £48,000 in revenue from leads the company had already discounted.The leads didn't change. What changed was whether someone followed up. Your clients’ leads arrived this week. They are sitting in an inbox.
We send you a questionnaire to pass to your client. They fill it in, send it back to you, you send it to us. That's the setup. MangoTeq handles everything from there. Your client's team doesn't change how they work, and MangoTeq never contacts them directly.
It depends on your client's pipeline and deal size, so we work it out on the call. For short sales cycles, a split on the extra revenue usually makes sense. For longer cycles or bigger tickets, we use cost per booked appointment or a flat monthly. We go through the numbers together before anything is agreed.
How to evaluate this properly.
The best way to see how it works is to run it on your own agency’s leads first. When someone enquires about working with you, Sentinel handles the response and follow-up. You see the results on leads you already know.
After 14 days you have the numbers: every lead that came in, how fast it was contacted, what happened in the conversation, how many booked a call. You decide from there. Book 15 minutes to walk through how it works.