HVAC spiffs are supposed to make techs sell more agreements and upgrades. When techs can't see or trust the math, they sell less and argue more. Here's how to fix it.
"My techs don't trust my spiff calculations"
It's a line that shows up in HVAC owner groups again and again. You set up spiffs to get techs selling maintenance agreements, IAQ add-ons and replacement leads. Then every payday a tech asks why the agreement he sold on the 14th isn't on his check.
You dig through ServiceTitan, QuickBooks and a spreadsheet. Sometimes he's right. Sometimes the customer canceled. Sometimes the office booked it under the wrong tech. Either way, the trust is gone, and a tech who doesn't trust the spiff stops selling.
If you're asking "how should I pay my techs commission on upsells" or "how do you guys sell service agreements on every call," the tracking is half the answer.
Why HVAC spiff math breaks
HVAC commission is harder to track than a normal sales team's, because the sale happens in the field and the money shows up later, somewhere else.
- Multiple people touch one sale. The tech sets the lead, the comfort advisor closes the replacement, the CSR books the install. Who gets what?
- Sold vs installed vs paid. A replacement sold in July might install in August and get paid through financing in September.
- Agreements cancel. A maintenance plan sold today can be canceled before the first visit, or fail its second monthly payment.
- Office data entry. If the job isn't tagged to the right tech in your field service software, the spiff vanishes.
- Rules change by season. A summer push on agreements, a winter spiff on furnace upgrades, a one-off contest. Each one adds a tab.
Put that together and even a careful owner gets it wrong sometimes. Across industries, pay errors are common: one in five US payrolls contains errors, each costing $291 on average to fix (EY for Paycom, 2022).
Why it matters more in HVAC than almost anywhere
Techs are hard to replace. HVAC technician turnover runs about 16%, and a replacement can take six to twelve months to get back to full productivity (ServiceTitan, 2026). Losing a good tech over a few hundred dollars of disputed spiffs is one of the most expensive mistakes a shop can make.
And the stakes on each sale are high. Financed HVAC jobs have a median ticket 64% higher than comparable jobs without financing (ServiceTitan, 2026), so a single replacement lead can be worth a big spiff. Upselling contributes an average of 21% of company revenue across businesses (HubSpot, 2025). If techs stop offering because they don't trust the payout, that revenue walks out the door with them.
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There isn't one right plan, but the ones that work share a few traits:
- Simple enough to calculate on the truck. A flat dollar spiff per agreement and a percentage on add-ons beats a three-tier matrix.
- Paid on something the tech can see. Agreements: paid after the first successful payment. Add-ons: paid when the invoice is paid. Replacement leads: paid when the install is complete and paid.
- Clear split rules. Lead set by tech, closed by advisor: spell out the split in writing.
- A clawback window. For example, agreements canceled within 60 days reverse the spiff. Written in the plan, signed by every tech.
Owners often ask "what should I call my maintenance plan" in the same breath. Name matters for selling it. But the payout rule matters more for whether techs bother to offer it.
How shops sell service agreements on every call
The shops that sell agreements on every call usually do three things: make offering the agreement part of the checklist, give the tech a short script and a price card, and show the tech their agreement count and spiff total every week.
That third piece is the one most shops skip. A tech who sees "7 agreements, $210 earned this month, 2 more to hit the bonus" on Thursday sells differently on Friday than a tech who finds out on payday.
Five rules to write down this week
Before you change software or build anything, write these five rules on one page and have every tech and advisor sign it:
- What earns a spiff: list every item (agreement, IAQ add-on, replacement lead, financing) with the dollar amount or percentage.
- When it's earned: sold, installed or paid. Pick one per item.
- Who gets credit: the tech on the job record in your field service software, and how splits work when an advisor closes.
- What reverses it: cancellations and refunds within a set number of days.
- How to question it: a three-day window after each statement, in writing, with a written answer.
Post a copy in the shop. It sounds basic. It's also the single thing that ends most of the "you shorted me" conversations, because the answer is on the wall.
A week in a shop where the math is visible
Picture a 12-tech HVAC company. Every night, a system reads the day's jobs from ServiceTitan or your field service software and the day's payments from QuickBooks or your payment processor.
It credits each agreement, add-on and lead to the right tech under the written rules. Agreements wait until the first payment clears. Canceled agreements inside the window reverse automatically, with a note.
Every Thursday, each tech gets a text: "Mike, this period: 6 agreements ($180), 3 IAQ add-ons ($135), 1 replacement lead closed ($250, pending payment). One agreement canceled on the 9th, reversed per your plan." On payroll day, the owner approves one summary with two flagged items. Nobody comes into the office to argue.
What it costs to rent vs own
ServiceTitan and similar platforms track a lot, and commission platforms like QuotaPath or Spiff can sit on top. Our estimate for commission software at a typical 10-person company is about $65 a month, before the time spent connecting it to your field service and accounting systems.
The alternative is a spiff and commission system built inside the accounts you already have, your field service software, your accounting, a sheet you control, with your own AI reconciling jobs and payments and writing the tech statements. You pay your own software and usage. The rules and history stay yours, whatever software you run next year.
Either way, the goal is the same: a tech who trusts the number keeps selling, and keeps working for you.
Questions owners ask
How should I pay HVAC techs commission on upsells?
Keep it simple: a flat spiff per maintenance agreement and a percentage on add-ons, paid once the customer's payment clears, with a written clawback window for cancellations.
How do I get techs to sell service agreements on every call?
Make the offer part of the job checklist, give techs a short script and a price card, and show each tech their agreement count and spiff total every week, not just on payday.
Does ServiceTitan track memberships and spiffs?
ServiceTitan tracks memberships and can attribute sales to technicians. Many shops still need a separate process or system to apply their exact spiff rules, splits and clawbacks and to show techs their running totals.
What should I call my maintenance plan?
Pick a name that sells the benefit, like a comfort club or priority plan, and keep it consistent on the truck, the invoice and the website. The name helps; a clear tech payout helps more.
Own the system instead of renting it
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Sources
- HVAC technician turnover runs 16%; a replacement can take six to twelve months to reach full productivity — ServiceTitan State of the Trades (2026)
- Financed HVAC jobs have a median ticket 64% higher than comparable jobs without financing — ServiceTitan State of the Trades (2026)
- Upselling contributes an average of 21% of company revenue — HubSpot Sales Strategy Report (2025)
- One in five US payrolls contains errors, and each costs $291 on average to fix — EY for Paycom, via Business Wire (2022)
- 63% of sales directors worry occasionally or frequently about commission accuracy — Vanson Bourne for OpenSymmetry, via The HR Director (undated)
- Replacing an employee costs one-half to two times the worker's annual salary (Gallup) — Gallup, via Paycom (2023)
Written by Hunter J. Schneider, founder of Valuexus. Get your free 173-point AI audit.