Two residential service shops in the same town can offer the same plumber wildly different paychecks for the same work. One pays a straight hourly wage. Another pays a lower hourly base plus a percentage of every ticket. A third pays a set dollar amount per task completed, no matter how long it takes. Understanding service plumber pay means understanding which of these models you are walking into, and what the federal overtime rules say about each one.
This guide is for plumbers moving into service work or comparing offers. It is not legal advice, and state wage laws can add rules on top of federal law.
Flat-rate pricing vs. flat-rate pay: clear this up first
The phrase "flat rate" gets used for two different things, and mixing them up causes most of the confusion in service plumbing job ads.
- Flat-rate pricing is how the shop charges the homeowner. Instead of billing hours plus parts, the shop quotes a fixed price per task from a price book before the work starts. Field-service software vendors such as Housecall Pro describe price books that bake overhead, labor and materials into each line item, often with "good, better, best" options for the customer.
- Flat-rate pay (also called per-task or piece-rate pay) is how the shop pays the technician. You earn a set amount for each task completed, regardless of hours.
A shop can use flat-rate pricing and still pay you hourly. Many do. When a job ad says "flat rate," ask which one it means.
The three main service plumber pay models
1. Straight hourly
You are paid for every hour on the clock: drive time between calls, waiting on a homeowner, picking up parts, callbacks. Pay rises with experience and license level. Hourly is the most predictable model and the easiest to check against your hours.
2. Hourly base plus commission
You earn a base hourly rate plus a percentage of revenue on the tickets you run, or on certain items such as water heater replacements, repiping or service agreements you sell. Some shops pay commission only on sales above a threshold. The percentage and what counts as "revenue" (before or after parts, before or after discounts and callbacks) vary by shop, and those details matter more than the headline percentage.
3. Flat-rate or per-task pay
Each task in the price book carries a pay value. Clear a main line, earn that task's amount. Swap a faucet cartridge, earn another. A fast, experienced tech on a full board can earn well under this model. A newer tech, or anyone on a slow week, can earn less than they would hourly.
Spiffs and bonuses
Spiffs are small fixed bonuses for specific sales: a maintenance membership, a water treatment system, a camera inspection that turns into a sewer repair. They sit on top of any of the three models.
Service plumber pay models compared
| Model | Best for | Main risk to you | Questions to ask |
|---|---|---|---|
| Straight hourly | Apprentices, newer service techs, slower markets | Lower ceiling; no reward for speed or sales | What is the raise schedule? Is drive time paid? |
| Hourly plus commission | Techs who communicate well and like recommending options | Pressure to sell; unclear commission base | Commission on gross or net? What happens on callbacks and refunds? |
| Flat-rate / per-task | Experienced, fast techs on a busy board | Slow weeks, long diagnostics and callbacks can pay little | Is there an hourly guarantee? Are non-task hours paid? |
| Spiffs on top | Anyone, as a supplement | Can change without notice | Is the spiff schedule written down? |
Overtime still applies to commission and per-task pay
A common misunderstanding is that commission or per-task pay means overtime does not apply. Under the federal Fair Labor Standards Act, covered non-exempt employees must be paid at least one and a half times their regular rate for hours over 40 in a workweek, and the Department of Labor's overtime fact sheet says that for piece-rate, commission or other non-hourly pay, the regular rate is total pay for the week divided by total hours worked.
Federal regulations spell this out:
- Per-task pay. Under 29 CFR 778.111, a pieceworker's regular rate is all earnings for the week divided by all hours worked. Because straight time is already covered by the piece earnings, the employer owes an extra half of that rate for each hour over 40.
- Commissions. Under 29 CFR 778.117, commissions are treated as pay for hours worked and must be included in the regular rate, whether they are your only pay or come on top of an hourly wage.
- Bonuses and spiffs. Under 29 CFR 778.211, bonuses promised in advance, including production and incentive bonuses, are nondiscretionary and belong in the regular rate. Only truly discretionary bonuses can be left out.
There is a narrow exception in Section 7(i) of the FLSA for commissioned employees of a retail or service establishment. It requires both that the employee's regular rate exceed one and a half times the applicable minimum wage and that more than half of their pay over a representative period of at least a month come from commissions. Whether a particular plumbing company qualifies as that type of establishment is a legal question. If an employer tells you overtime does not apply because you are on commission, ask what exemption they are relying on, and check your state's rules.
Worked examples: what a 50-hour week looks like
These are hypothetical numbers chosen to make the math easy to follow, not market rates.
Per-task pay. You earn $1,400 in task pay and work 50 hours. Your regular rate is $1,400 divided by 50, or $28 an hour. The 10 overtime hours earn an extra half of $28, which is $14 each, for $140. Total for the week: $1,540.
Hourly plus commission. You earn $25 an hour for 45 hours ($1,125) plus $600 in commission. Total straight-time pay is $1,725, so your regular rate is $1,725 divided by 45, about $38.33. The 5 overtime hours earn an extra half of that, about $19.17 each, for roughly $95.83. Total: about $1,820.83.
If your paycheck under either model never shows anything extra for weeks over 40 hours, ask about it.
How to compare service plumber pay offers
Use this checklist when two shops put numbers in front of you. Our guide to what belongs in a plumbing pay offer besides the hourly rate covers benefits and tools in more depth.
- Ask for a sample paycheck from an average week and a slow week. The best tech's best month tells you nothing.
- Ask what counts as commissionable revenue. Gross ticket, ticket minus parts, or ticket minus parts and discounts?
- Ask what happens on callbacks. Under per-task pay, a callback on your own work is often unpaid time. Find out.
- Ask whether there is an hourly guarantee or floor on per-task or commission plans.
- Ask how drive time, shop time, training and on-call hours are paid. Emergency and after-hours pay is covered in our overtime and emergency-call guide.
- Ask whether the spiff and commission schedule is in writing and how much notice you get before it changes.
- Ask how overtime is calculated on the plan. A shop that answers clearly is usually a shop that pays correctly.
Which model fits you?
For context, the federal Occupational Outlook Handbook lists a median wage of $63,800 a year for plumbers, pipefitters and steamfitters in May 2025, with the lowest tenth under $44,150 and the top tenth above $108,420. It also notes that plumbers often work nights and weekends and are frequently on call. Service work is where the call board, and your speed, start to shape that number.
- Apprentice or first year in service: hourly. You are still learning diagnostics and you will be slow. Per-task pay punishes that.
- Experienced tech who is fast and likes customer conversations: hourly plus commission or per-task pay can raise your income, especially with an hourly floor.
- Tech who hates selling: hourly, or per-task with no sales component. Commission plans tied to add-on sales will wear on you.
Bottom line: No pay model is automatically better. Hourly is safest, commission rewards communication, and per-task pay rewards speed on a busy board. Whatever the model, commissions, per-task earnings and promised bonuses still feed into overtime under federal rules. Get the plan in writing, ask to see a slow-week paycheck, and track your own hours.