How Much Does a Missed Call Cost Your Plumbing Business?

If you run a plumbing business, you already know the phone is where the money comes from. Nobody browses for a plumber. They have water on the floor, they search, they call the first number that looks legitimate, and they book whoever picks up. What most owners have not done is put a dollar figure on the calls nobody answered.

This post does that math. The numbers are conservative on purpose. If anything, your real number is higher.

The starting point: 62% of calls go unanswered

A widely cited study of small business phone lines found that 62% of inbound calls go unanswered. That figure surprises owners until they think about their own day. You are under a sink. You are driving between jobs. It is 7:40 pm and you have been working since 6 am. The phone rings and you let it go, planning to call back later. Sometimes you do. Often the caller has already booked someone else.

For trades specifically, the miss rate tends to be worse than average because the person answering the phone is also the person doing the work. There is no front desk. The phone competes with the job in front of you, and the job usually wins.

What a plumbing job is actually worth

Across the GTA, the average residential plumbing job runs $400 or more once you account for the mix of small repairs, drain work, water heater swaps and the occasional repipe. Emergency calls run higher. A burst pipe at 11 pm is not a $150 visit.

And that is only the first job. A customer who has a good experience calls again, refers a neighbour, and leaves a review. So the true value of a new caller is higher than a single ticket. For this exercise we will ignore that and stick with the single-job number, because the single-job number is already big enough to matter.

The math, step by step

Here is a simple model for a two-to-four-truck plumbing shop. Adjust the inputs to match your business.

• Inbound calls per day: 8 (a modest number for an established shop with decent reviews)
• Working days per year: 250
• Miss rate: 62% (the small business average)
• Close rate on answered calls: 40% (some callers are price shopping, some are outside your area, some are spam)
• Average job value: $400

Run the numbers: 8 calls per day times 250 days is 2,000 calls a year. At a 62% miss rate, 1,240 of those calls ring out or hit voicemail. If you would have closed 40% of them, that is 496 jobs. At $400 each, you are leaving about $198,000 on the table.

Some owners push back here and say they call everyone back. Fair. But callback rates are not 100%. If you recover a quarter of missed calls by phoning back, you still lose roughly $149,000 to $189,000 a year depending on how quickly you return the call. The commonly cited estimate of about $189K per business a year sits right inside that range, and it lines up with what we hear from the plumbers we work with in Toronto, Mississauga and Vaughan.

The phone did not stop ringing when I stopped answering it. It just started ringing at my competitor.

Why voicemail does not fix this

Voicemail feels like a safety net. It is not. Studies of consumer behaviour consistently show that the majority of people who reach voicemail for a service business hang up and call the next listing. A plumbing emergency is a now problem. Nobody waits two hours for a callback when three other plumbers are one tap away on Google Maps.

The other issue is what a missed call does to your ad spend. If you pay for Google Local Services Ads or run any kind of paid campaign, every unanswered call is money you paid for a lead that walked. The cost per call on plumbing keywords in the GTA is not small.

What answering every call looks like

There are three ways to fix the miss rate. You can hire a receptionist, which costs $40,000 or more a year in salary and still leaves nights and weekends uncovered. You can use a human answering service, which runs $300 to $1,200 a month and usually just takes a message. Or you can put an AI receptionist on the line that answers in under two seconds, asks the right questions, books the job into your calendar and texts you the details.

We wrote a detailed comparison of the second and third options in AI Receptionist vs. Answering Service. The short version: for a trade business, the AI option costs about $249 a month after setup, picks up every call including at 2 am, and actually books work instead of taking a note.

For the shop in our example, recovering even half of the missed calls is worth $75,000 to $99,000 a year. Against a $249 monthly cost, the payback is the first job it books.

Beyond the phone

The phone is the front door, but it is rarely the only leak. Once the calls are handled, most plumbing shops we work with find the next problems quickly: invoices going out days after the job, no follow-up on quotes, reviews that never get requested. Those are all fixable with the same kind of automation. Our trades page walks through what that looks like, and our post on the hidden cost of manual invoicing covers the billing side in detail.

If you want to see what your own number looks like, we will run the math with your call volume on a 15-minute call. Book a demo or get in touch and we will show you exactly what an AI receptionist sounds like answering your line.