Plumbing pricing splits cleanly in two and most people price both the same way, which is the mistake. Service work is sold on availability, diagnosis and speed, so it carries a call-out fee and a premium for out of hours. Installation work is sold on fixtures, rough-in and trim, so it is a scoped fixed price with the access risk excluded. The trade also has the best recurring revenue in construction hiding in it, and almost nobody prices for it. Here is what drives a plumbing number in the US.
Start with the stack
Every price has to cover labor, the payroll burden on that labor, materials, and a share of overhead, then carry profit as its own line. That is How to price your work so you actually make money and What Should I Actually Charge?. This page is only the part that is specifically plumbing.
Service work and installation work are two different businesses
Service. Somebody has a leak, a blockage, or no hot water, and they want it fixed now. What they are buying is availability and diagnosis. That is why a service-call or diagnostic fee is standard and fair in plumbing, commonly credited toward the repair if the work goes ahead, and why out-of-hours and weekend work carries a premium. Price it as a call plus the work, and say the fee before you drive out rather than on the invoice. Should I charge for estimates? has the wording that keeps the customer.
Installation. A bathroom, a repipe, a new-build rough-in, a water heater change. This is a scoped fixed price against a fixture count and a specification, with the unknowns handled by exclusions and allowances instead of optimism.
Charging installation prices for service work loses you the money that pays for being available. Charging service prices for installation work loses you the job.
What drives the price
The license, and how far it reaches. Plumbing runs the same apprentice, journeyman, master ladder as electrical, typically four to five years of documented hours before a journeyman exam and more years before master. It carries even more state-to-state variation than electrical: some states license the plumbing contractor, the business, rather than the individual journeyman, so what you must hold to work independently or to run a shop genuinely differs. Whatever the arrangement, holding the license that lets you pull the permit is a cost that belongs in every permitted job.
Gas is often a separate license. In many states and cities, gas piping and gas appliance work need a separate gas fitter or gas technician license on top of your plumbing license; in others a master plumber license covers gas up to a defined pressure. Because it splits both ways, never assume. It matters to pricing twice: it is a credential cost, and it decides whether a water heater or boiler job is one trade on site or two.
Access is the biggest variable in the trade. The same fixture count is a different job in an open new-build than in a slab-on-grade house, a crawl space, or a finished second floor. Cutting concrete, opening ceilings, working in a crawl space, and putting it all back afterwards can be more of the price than the plumbing. Price the access, and exclude what you cannot see.
What is already in the walls. Old galvanized, cast iron, polybutylene, or a drain that turns out not to have the fall anybody assumed. On a repipe or a remodel this is the concealed condition that eats fixed prices. Say in the quote that the price assumes existing pipe and drainage are serviceable and correctly fallen, and price the alternative by change order.
Permits and inspections are calendar time. Rough-in inspection before anything is covered, then a final. Those are visits you cannot fill with other work, and they belong in the price as visits. What inspections does my job need, and in what order? is the sequence.
Fixtures and appliances are a big share of the money. That makes the supply question worth settling in writing: who buys, what markup applies, and who warrants it. Marking materials up 15 to 25 percent covers carrying the cost, the waste, the sourcing and the warranty on what you supplied, and a customer-supplied faucet that fails is exactly the argument that Materials: who supplies, who pays, and getting it in writing exists to prevent.
Emergency work and water damage. A burst pipe is a different transaction from a scheduled repipe, and the price reflects response rather than hours. Be careful about scope: drying, remediation and making good are usually not yours, and saying so in writing keeps you out of somebody else's insurance claim.
Labor burden and the comp class
A plumber on the books costs well above the wage. Employer FICA at 7.65 percent, unemployment tax, general liability and workers comp put labor burden in the normal construction range of 30 to 50 percent on top of the base wage, and that is before the paid hours you cannot bill. The worked example is in What does a worker actually cost me per hour once they are on the books?.
Comp is a rate per $100 of payroll set by class code and multiplied by your experience mod. Plumbing sits in the middle of the construction range, well below roofing, and your claims history moves it. Watch the year-end payroll audit, and never let a sub work without proof of insurance, because the auditor can reclassify their pay as your payroll. Workers' comp for contractors and Workers' Comp Estimator have it.
The recurring revenue nobody prices for
Backflow prevention assemblies have to be tested on a schedule in most states, and backflow certification is a separate exam from your plumbing license. That combination is unusual and valuable: low-overhead work that comes back on a calendar rather than when something breaks, with a credential that limits who can do it.
It is worth pricing deliberately rather than as a favor for existing customers. Recurring, scheduled, certified work is the steadiest thing in a trade whose other half is emergencies, and it smooths exactly the feast-or-famine pattern that Managing cash flow in a feast-or-famine trade is about. Medical gas and other certified specialties work the same way.
What belongs in a plumbing quote
- Concealed conditions, named: existing pipe material, drain condition and fall, no accessible route, asbestos-containing pipe insulation in older buildings.
- That the price assumes adequate water pressure and an adequate existing service, because upgrading either is a different job.
- Cutting and making good. Concrete cutting, opening walls and ceilings, and who patches, paints and tiles afterwards.
- Fixtures, specified by model or covered by a stated allowance.
- Code upgrades triggered by the work, such as required valves, venting or seismic strapping a jurisdiction adds when you touch a system.
- Anything the utility or the municipality has to do, and their timeline.
- Water damage, drying and remediation, which are almost always somebody else's scope.
- Out-of-hours rates, stated as a rate rather than negotiated at 2 a.m.
The general build is in How to write an estimate that wins the job and protects you, and What Is NOT Included: Exclusions List is the template.
Where to go next in this section
- How to price your work so you actually make money, the stack underneath.
- Day rate, fixed price, or time and materials: which should you quote?, which is the service versus installation question in general form.
- How to price HVAC work, the trade with the closest pricing shape.
- Materials: who supplies, who pays, and getting it in writing, for the customer-bought faucet.
- How to become a plumber, the licensing ladder and the gas question in full.
- Quote Health Check, to catch a missing exclusion before it costs you.
Common questions
What should a plumber charge per hour?
There is no national hourly rate for plumbing and any published figure is an average of markets that do not look like yours. Build the number from your own costs: the wage you need, the payroll burden on it, the days you can genuinely bill, your overhead, then profit as its own line. What is specific to plumbing is that the answer differs for service and installation work. Service is sold on availability and diagnosis and carries a call-out fee and an out-of-hours premium; installation is a scoped fixed price against a fixture count. Pricing both the same way loses money on one of them.
Should plumbers charge a call-out or diagnostic fee?
Yes, it is standard and customers expect it. What they are buying on a service call is that somebody turns up and works out what is wrong, and finding the fault is the skilled part of the job. The usual structure is a stated fee for the visit and diagnosis, credited toward the repair if they go ahead, which feels fair because it is. Tell them the fee before you drive out. The money is rarely the objection; being surprised by it on the invoice is.
How do I price a repipe or a bathroom when I cannot see the pipework?
Exclude what you cannot see and price it by change order when you find it. Existing galvanized, cast iron or polybutylene, a drain without the fall everyone assumed, or no accessible route can multiply the labor, and a fixed price built on the optimistic version comes out of your margin. Write in the quote that the price assumes the existing pipe and drainage are serviceable and correctly fallen, and that concealed conditions are priced separately. Access is the other half: the same fixture count in a crawl space or through a finished ceiling is a different job from an open new-build.
Do I need a separate license for gas work?
Often, and it splits both ways, so never assume. In many states and cities gas piping and gas appliance work require a separate gas fitter or gas technician license on top of your plumbing license, while in other states a master plumber license covers gas up to a defined pressure. It matters for pricing as well as compliance, because it decides whether a water heater or boiler job needs one trade on site or two, and the second credential is a cost you carry across every gas job you take.
What is the most reliable recurring work in plumbing?
Backflow prevention testing. Most states require backflow assemblies to be tested on a schedule, and backflow certification is a separate exam from your plumbing license, so it is recurring work with a credential barrier around it. That combination is rare in the trades: it arrives on a calendar rather than when something breaks, it is low overhead, and it evens out a business whose other half is emergency calls. Medical gas and similar certified specialties behave the same way. Price it deliberately instead of treating it as a favor to existing customers.
The honest bit
- No dollar rates appear in this guide. There is no national hourly rate, call-out fee or fixture price for plumbing in the US, and a number here would mislead more readers than it helped.
- The licensing ladder is the general shape only. Hours, exams, whether your state licenses the individual or the contracting business, and how far a master license reaches into gas work are all state and sometimes city questions.
- Backflow testing requirements, intervals and who may perform them are set by your state and often by the water purveyor. Confirm locally before building a recurring service around it.
- Workers comp class codes and rates are per state and per carrier, and your experience mod is yours alone. The ranking of the trades is the point here, not a figure.
- This is general guidance, not legal, tax or financial advice.
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