Pay-Per-Call for HVAC and Plumbing Contractors: Emergency Calls, Planned Work, and the Right Duration Threshold
Two kinds of calls, one phone line
For HVAC and plumbing contractors, the phone rings for two very different reasons.
Some calls are emergencies: no heat on a freezing night, no cooling during a heat wave, a burst pipe, a water heater pouring water onto the garage floor. Others are planned work: a seasonal tune-up, a system replacement estimate, a quote on a new water heater, a bathroom repipe.
Both are valuable. But they sound different, move at different speeds, and convert in different ways. A pay-per-call campaign that treats them the same will usually underperform. This post explains how to set up routing, hours, and duration thresholds with both types in mind.
Common call types in each trade
HVAC
- Emergency repairs: no heat, no cooling, a system that won’t turn on, strange noises or smells.
- Maintenance: seasonal tune-ups and inspections.
- Replacement and install estimates: aging systems, new construction, or a homeowner ready to upgrade.
Plumbing
- Emergency repairs: burst pipes, major leaks, backed-up drains, no hot water.
- Routine service: running toilets, slow drains, fixture repair.
- Replacement and install estimates: water heaters, repiping, fixture upgrades.
Why emergency calls qualify fast
Emergency callers get to the point. They have a problem happening right now, and they want someone on the way. In the opening of an emergency call, you’ll usually hear what’s wrong, how bad it is, and where they are. Many of these calls book on the first conversation, because the homeowner isn’t shopping. They want help.
That has implications for the duration threshold. A duration threshold is the minimum connected time a call has to reach before it bills. With emergency calls, a homeowner may give their address, accept a time window, and hang up quickly. A threshold set with long planned-work conversations in mind can exclude exactly these efficient, high-value calls from counting.
Why planned-work calls may run longer
Planned-work calls often take more conversation before intent is clear. A homeowner asking about a system replacement may want to talk about efficiency, the age of their current unit, financing options you offer, and timing. A water heater quote call may start with general questions before the caller decides whether to schedule an estimate.
Those calls can be very valuable, but intent tends to show up later in the conversation. A threshold for a planned-work campaign may reasonably reflect that.
How duration thresholds work for these trades
There’s no standard number. The threshold varies by client, and the client defines it as part of the campaign before it starts. The clock measures connected time, not ring time.
Because emergency and planned-work calls behave differently, a contractor can set thresholds differently for emergency and planned-work campaigns. The reasoning is simple: match the threshold to how long it realistically takes your team to identify a real opportunity for that type of call.
The threshold is also what protects you from short, unqualified calls. Wrong numbers, solicitors, repeat callers, callers outside your area, and requests for services you don’t offer are not qualified when the call ends before the threshold, which is why they never bill. If a call stays on the line past the threshold, it bills. There are no returns unless a call has a major violation. A quick, polite close on a call that isn’t a fit keeps it from billing.
Example calls by type
Here are illustrative examples of how the opening of each call usually sounds. These are written fresh and aren’t from real calls.
A no-heat call on a cold night. The caller says the furnace stopped working, the house is getting cold, and there are kids at home. They give their address right away and ask how soon someone can come. Your CSR confirms the ZIP, asks whether the thermostat is showing anything, and offers the earliest window.
A burst-pipe call. The caller is stressed and talking fast. Water is spraying under the sink or in the basement. Your CSR’s first job is to help them shut off the main water valve, then confirm the address and dispatch. Intent is obvious almost immediately.
A seasonal tune-up request. The caller is calm. They want their system checked before summer and ask what’s included and whether you have a maintenance plan. Your CSR explains the visit, confirms the ZIP, and offers two appointment windows later in the week.
A water heater replacement quote. The caller’s unit is getting old, or it’s started making noise. They ask about tank vs. tankless, what size they need, and how pricing works. The conversation runs longer before the caller decides to book an in-home estimate.
The first two calls qualify fast. The last two take more time. That’s why it helps to think about them separately.
Seasonality and capacity
HVAC demand rises with the first cold snap and the first heat wave. Plumbing demand rises when temperatures drop and pipes freeze. In those peaks, calls can arrive faster than crews can handle them. In slower seasons, planned work and maintenance usually make up more of the mix.
A good pay-per-call setup matches campaigns to crew capacity through the seasons:
- Routing by trade and ZIP keeps calls inside the area your crews can realistically reach.
- Campaign hours keep calls arriving when someone can answer.
- Caps limit how many calls you take so you don’t pay for more than you can serve.
- Pausing lets you stop calls entirely when your schedule is full.
Setting up service area and hours
Choose ZIPs you can serve well. Start with the ZIPs where your trucks already run and your arrival times are competitive. Expanding into areas you can’t reach quickly often leads to calls you can’t book.
Match hours to who can actually answer. If your team picks up live from early morning to evening, set the campaign to those hours. If you have an after-hours dispatcher or an on-call tech, you can extend coverage. If not, consider web requests for after-hours demand instead of letting calls ring out.
Pause when crews are fully booked. Buyers can pause campaigns. In a peak week, pausing is better than taking calls you can’t schedule for days.
Call-handling basics that protect ROI
Pay-per-call only pays off when calls turn into jobs. A few basics matter more than anything else:
- Answer live. A call that rings into voicemail during peak season is often gone for good.
- Confirm ZIP and service early. It’s the fastest way to tell whether the caller is a fit, and it keeps calls that aren’t a fit short.
- Book a window on the call. Offer specific time windows instead of promising a callback.
For emergency calls, speed and reassurance come first. For planned work, clear answers and a confident next step, such as an in-home estimate, move the caller forward.
What to track per call type
Track emergency and planned-work calls separately so one doesn’t hide the other:
- Answer rate: the share of calls your team picked up live.
- Appointment rate: the share of answered calls that ended with a scheduled visit or estimate.
- Closed jobs: the share of appointments that became paid work.
Emergency calls may show high appointment rates and fast closes. Replacement estimates may book fewer appointments per call but produce larger tickets. Looking at both separately tells you where your campaign is strongest and where your call handling needs work.
Pricing in general terms
Cost is up to the contractor. Calls are placed through an auction that aims for the best match. The factors include how well you match the caller’s trade and location, the price you set, the mandatory duration in your campaign, and the likelihood that the customer books a job with you. The better the match turns out to be, the more likely more calls come your way. Answering live and booking on the call is how HVAC and plumbing shops strengthen that match.
Common mistakes
- Letting calls go to voicemail in peak season. This is the most expensive leak in pay-per-call. If you can’t answer, adjust your hours or pause.
- Treating emergency and planned calls the same. They need different handling, different expectations, and often different thresholds.
- Judging a campaign on too little data. A handful of calls doesn’t tell you much. Give a campaign enough calls to see real patterns in appointments and closed jobs before drawing conclusions.
- Ignoring capacity. Taking more calls than your crews can serve hurts your booking rate and wastes spend.
The bottom line
Emergency and planned calls need different handling. Emergencies qualify fast and book quickly, so your setup should let those efficient calls count. Planned work takes more conversation, so your threshold and expectations should reflect that. Match your service area and hours to your crews, pause when you’re full, and judge results on appointments and closed jobs.
