The true cost of a 24-hour lead response

It's easy to assume a lead who filled out a form or left a voicemail will wait a day for a callback. In practice, they usually don't. A 2007 study out of MIT Sloan, run with InsideSales.com, tracked over 15,000 leads across six companies and found that the odds of actually connecting with a lead dropped 100-fold when the callback came at 30 minutes instead of 5. Qualification odds dropped 21-fold over the same window.

That's not a small effect. It means the single biggest lever most service businesses have over close rate isn't better ad targeting or a lower price — it's how fast someone replies.

A separate, more recent study from 411 Locals — which reviewed call-answer rates across 85 businesses in 58 industries — found that 62% of inbound calls to home-service businesses go unanswered, meaning most leads that call a plumber, electrician, or HVAC company are calling into silence more often than not.

Combine those two findings and the picture is straightforward: most inbound leads either don't get a live answer at all, or the reply comes too late to matter. Both failure modes have the same result — the lead moves on.

The immediate cost is obvious: one job goes to a competitor. The less obvious cost compounds over time. Every lead that came from paid ads or referrals and went unanswered is money already spent with nothing to show for it. And a caller who reaches voicemail twice in a row usually doesn't leave a third message — they just stop trying, which means the loss doesn't show up anywhere in your reporting. It just looks like fewer leads than you actually had.

The direct fix is obvious and expensive: staff a phone line every hour a lead might call, including nights and weekends. Most small and mid-sized service businesses can't justify that cost for the volume they get.

The practical alternative is a system that replies the moment an inquiry comes in — texts, calls, or web forms — asks the same qualifying questions a good dispatcher would, and books the appointment before the lead has a reason to call anyone else. That's the entire premise behind StreamForge's lead follow-up service, and you can run the numbers for your own business with the ROI calculator below.