Missed Calls Are Your Most Expensive Marketing Leak (2026 Numbers + the Fix)

Missed calls are the most expensive leak in your marketing, because you already paid to make that phone ring. In Invoca’s July 2026 benchmark data, a person answered 74% of calls to plumbing companies. That means about 1 in 4 callers never reached anyone. The fix is mostly phones and habits, not more ads: cover overflow and after-hours calls, text back every miss, and get your speed to lead down to minutes.

Below are the 2026 numbers, how Google now bills some missed calls on Local Services Ads, what the famous “5-minute” study really says, and 7 fixes in the order we’d set them up.

What a missed call really costs you

Most calls you miss are calls you already paid for. You paid with ads, plumber SEO, your website, your reviews and the wraps on your trucks. When nobody picks up, that money is spent and the job goes to the next plumber on the list.

Here’s roughly what one lead costs before anyone says hello. These are national numbers from vendors and agencies, not promises. Your market will be different.

Then there’s the job on the other end of the call. HomeAdvisor puts the national average for a water heater replacement at $1,348 (updated June 2026). That’s revenue, not profit. But it’s revenue you paid to find and then handed to a competitor.

A homeowner with water on the floor rarely waits for a callback. They call the next number on the screen.

The 2026 numbers: how many plumbing calls go unanswered

Two call-tracking companies publish numbers on this. Both are vendor data, pulled from their own customers’ calls.

• Invoca (July 2026): Across home services, a person answered just 52% of inbound calls. Plumbing did best of the nine trades in the report at 74%. HVAC was at 34%.
• CallRail (January 2025): Across 1.1 million conversations at small businesses, the missed-call rate for home services was 14%.

Why the gap? The two companies track different businesses and count different things. Invoca counts whether the caller spoke with a person, so a call that lands in voicemail doesn’t count as answered.

Either way, the lesson is the same. Plumbers answer more calls than most trades, and still about 1 in 4 callers never talks to a person.

Invoca had two more numbers worth knowing:

• Of the calls a person answered, 38% were leads, and 45% of those leads converted during the call.
• 55% of home services businesses don’t ask leads to buy or book the job.

That last one stings. A call your team answers but never asks to book is only half caught.

Google now bills some missed calls on Local Services Ads

If you run Google Local Services Ads (LSAs), a missed call can cost you a lead fee. Google’s help page lists this as a valid lead: “You missed a phone call during your business hours and the customer stays on the line for more than 20 seconds.” Industry reports say the rule took effect October 1, 2026.

The fine print matters:

• Voicemail counts. A business-hours call that goes to voicemail or an automated greeting “is charged if the caller stays on the line for more than 20 seconds, whether or not they leave a message.”
• Phone menus change the timer. If callers have to press a key, the 20 seconds start when they press it. If they hang up without pressing a key, you aren’t charged.
• Follow-ups are free for a while. Once a lead is charged, calls or messages with that customer within 15 days, from the same number or email, aren’t charged again.

Missed calls can also push your ads down. Google’s ranking help says it plainly: “Missed calls may negatively affect your responsiveness.” Responsiveness is part of how Google decides which LSAs show first.

So a missed LSA call can hurt twice. You may pay for it, and you may rank lower next time.

What to do about it:

• Set your LSA business hours to the hours a person really answers.
• Turn on message and booking leads. Google says they can help “especially during nights and weekends when you can’t answer the phone.”
• Stop using voicemail as your backup during open hours. It can be a paid lead that you still lose.

Speed to lead: what the “5-minute rule” actually says

You’ve heard it: “Call back in 5 minutes or you’re 100 times less likely to close.” That’s not what the study found.

The numbers come from the 2007 Lead Response Management study by InsideSales.com and Dr. James Oldroyd. It covered three years of data at six companies: more than 15,000 web-form leads and 100,000 call attempts. A 2011 Harvard Business Review article added a second set of numbers. Here’s what gets said versus what was found:

Minutes mattered even inside that first half hour. In the 2007 data, waiting 10 minutes instead of 5 cut the odds of reaching the lead by 5 times.

The same HBR article audited 2,241 U.S. companies. Only 37% responded to a web lead within an hour, and 23% never responded at all.

So what does this mean for a plumber? The research is old. It isn’t about plumbing. And it measured reaching and qualifying people, not closing jobs. But every study points the same way, and plumbing leads run on a shorter clock than most. Somebody with a backed-up sewer line isn’t sitting by the phone for half an hour.

Our take: answer live whenever you can. For missed calls, web forms and LSA messages, treat 5 minutes as the outside limit during open hours.

AI is calling plumbers for prices now

Google’s AI can now call local businesses for a searcher to ask about prices and availability. Invoca tracked these calls (vendor data, published December 15, 2025):

• Pricing calls from Google’s AI rose 324% from October to November 2025 across the industries studied.
• Plumbing averaged more than 650% growth per month.
• These calls were still under 1% of all calls.
• Plumbers answered 66% of them. Across all industries, 48% of the answered calls gave no price.

It’s a small slice of calls today. But behind each one is a homeowner who asked Google to find them a price. If your team won’t give a ballpark, the AI has nothing to pass along. The same goes for people who call you directly. For more on how search is changing, see our guide to AI search for plumbers.

7 fixes for missed calls, in the order we’d do them

None of this needs a marketing agency. It’s phone settings, some low-cost software and a few written rules. You or your office manager set it up with your phone provider and your team. Here’s the order we’d go in.

1. Measure your answer rate every week

You can’t fix what you don’t count. Every Monday, pull these numbers from your phone system or call-tracking tool:

• Answer rate: calls a person answered, divided by total inbound calls.
• Missed calls by hour and day. Look for the holes: early morning, lunch, after 5 p.m., Saturdays.
• Voicemails and menu hang-ups. Both are misses, even if the phone technically picked up.
• Callback time: how long missed calls and web leads waited for a live call.

Post the answer rate where the team can see it. If a person isn’t answering at least 9 out of 10 calls during open hours, fix that before you buy more leads. That target is our opinion, not an industry standard.

2. Turn on missed-call text-back

Text-back sends an automatic text the moment a call goes unanswered. Many phone systems and field service apps offer it. Keep the message short and human:

“Hi, this is [Company]. Sorry we missed your call. What’s going on? Reply here or we’ll call you right back.”

Then call back fast. A text buys you a few minutes. It doesn’t replace a person, and it won’t save a burst-pipe call by itself.

Register before you text (A2P 10DLC). If software sends your texts from a regular 10-digit number to U.S. phones, carriers require A2P 10DLC registration. It has two parts: a brand (who’s sending) and a campaign (how people opt in, opt out and get help). Your phone or texting provider walks you through it. Twilio, for one, says unregistered senders pay extra carrier fees, and registered traffic gets less filtering.

Keep these texts about the person’s call. Don’t drop them into a promo list.

3. Send overflow and after-hours calls to a live answer

When every line is busy or the office is closed, calls should roll to a person or an AI receptionist, not voicemail.

• Overflow: Let the office phones ring for about 15 to 20 seconds, roughly three rings, then roll the call over. Lunch and the morning rush are the usual gaps.
• After hours: Use a live answering service, an on-call rotation or an AI receptionist. Pick what fits your call volume.
• Write the rules down. What counts as an emergency (active leak, sewage backup, no water)? Who’s on call tonight? Which ZIP codes do you serve? What price ranges can they give?
• Test it. Call your own number at lunch, at 7 p.m. and at 2 a.m. on a Saturday. Hear what your customers hear.

Homeowners want this. In a 2026 survey by Scorpion (a marketing agency), 56% of 2,000 homeowners said they want 24/7 scheduling or a way to reach a business after hours. And 66% of the businesses surveyed called after-hours service their top challenge.

4. Cut your phone menu to one press, or none

Every step in a phone menu (an IVR) is a chance for a caller to hang up and dial someone else. If you need a menu at all, give it one choice that reaches a person fast, like “Press 1 if you need a plumber today.”

On Local Services Ads, a menu changes the billing math. The 20-second timer starts when the caller presses a key, and a hang-up before any key press isn’t charged. That’s not a reason to build a long menu. A caller who hangs up at the menu is still a lost job.

5. Write a callback rule and post it

Speed only happens when it’s a rule, not a hope. Here’s a sample to adapt. These are our suggested targets, not industry standards:

Send new-lead alerts to the phones of whoever is on duty, not just to an email inbox. If you run Facebook and Instagram lead ads, this matters even more. Those people filled out a form, so the clock starts the second they hit submit.

6. Give your CSRs a price-range script

Price is the first question on a lot of calls, from people and now from Google’s AI. “We’d have to send someone out” ends many of those calls. A range keeps the caller talking.

Here’s a simple script for your customer service reps (CSRs), or whoever answers your phone:

“Good question. Most [water heater replacements] we do land between $[low] and $[high]. Where you land depends on [size, gas or electric, and venting]. The tech confirms the exact price before any work starts. Want me to get someone out [today / tomorrow morning]?”

Fill in real ranges for your top 5 to 10 jobs. Make sure your CSRs, answering service and AI receptionist all use the same numbers.

7. Ask for the booking on every call

Remember Invoca’s number: 55% of home services businesses don’t ask leads to book the job. Every script should end with a time: “I’ve got a tech open at 2 p.m. Does that work?” A call that ends with “we’ll call you back” is a missed call that just takes longer.

If you record calls (check your state’s consent rules first), listen to five a week. Check two things: Did your team give a price range? Did they ask for the booking?

Fix the phones before you buy more leads

More marketing pours more calls into the same phone setup. If 1 in 4 calls already misses a person, a bigger ad budget mostly buys more missed calls. Fix the answering first. Then grow with a website built to get calls and a budget your team can actually handle. Our guide to setting a plumbing marketing budget walks through the math.

If you’d like a second set of eyes on the marketing side, ask for a free market check. Tell us where you work, and we’ll look at your Google Maps rankings, your website and your competitors, then show you what we’d fix first. No pressure either way.