Plumbing Job Costing Calculator
Stop leaving money on the table. See the true cost of every plumbing call before you quote.
👷 Labor
How many people on this plumbing job
Typical: 25-35%. Covers FICA, workers comp, unemployment insurance, PTO.
🔧 Materials
Total cost of parts, supplies, and materials for this plumbing job.
Markup covers your time sourcing, picking up, and storing materials. Typical: 10-25%.
🏢 Overhead
Your monthly fixed costs spread across this plumbing job.
Rent, insurance, marketing, phone, software, vehicle payments, tools. Anything you pay whether or not you're on a job.
🚛 Travel & Setup
Time before and after the actual plumbing work. Most contractors forget this.
Applied at your average hourly pay rate. Includes all workers.
💰 Desired Profit Margin
The percentage of the final price you keep as profit.
What to Charge
$0
Total job price
Adjust the inputs on the left to see your numbers update in real time.
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How to Cost Plumbing Jobs
Plumbing service calls move fast. A customer calls, you dispatch, and the plumber quotes on the spot. That speed is great for revenue. It is terrible for margins when you are not tracking real costs.
This calculator breaks down the full cost of a plumbing job: labor with burden, parts with markup, truck roll costs, and your share of overhead. The number it spits out is what the job actually costs you. Everything above that is profit.
Run it before you set your flat rates. Run it after a job to see if you made money. Either way, you will stop guessing.
Typical Plumbing Costs
A typical plumbing service call costs $80 to $250 in hard costs. That is one plumber for 1 to 3 hours, $25 to $150 in parts, plus truck and overhead. Bigger jobs like water heater installs or repipes jump to $400 to $1,500 in labor and materials.
Target Margins for Plumbing
Plumbing companies should target 45% to 55% margins on service calls and 30% to 40% on larger projects. Drain cleaning and simple repairs can hit 60%+ because parts costs are low. If your service call margins are below 40%, check your flat rate pricing against actual time on site.
Tips for Plumbing Job Costing
- Flat rate pricing only works if you built the rates from real cost data. Recalculate your price book quarterly.
- Parts markup of 20% to 30% is standard in plumbing. Some shops go higher on specialty fittings and customers never push back.
- Track callback rates. A 5% callback rate on repairs means 5% of your labor is free. That comes straight out of margin.
Frequently Asked Questions
How much should a plumber charge per hour?
Most plumbers charge $85 to $200 per hour depending on the region, complexity, and whether it is residential or commercial work. To set your rate, calculate your fully burdened labor cost ($28 to $45/hr with taxes, insurance, and benefits) and multiply by 3x to 4x. This covers overhead, profit, and the 30% to 40% of your day spent on unbillable tasks like driving and paperwork.
What is a good profit margin for plumbing companies?
Plumbing companies should target 45% to 55% margins on service calls and 30% to 40% on larger projects like repipes or water heater installs. Drain cleaning and simple repairs can hit 60% or more because parts costs are minimal. If your service call margins are below 40%, revisit your flat rate book.
How do you price plumbing jobs using a flat rate book?
Build flat rates from real cost data, not competitor pricing. Calculate your average labor time per task, add fully burdened labor cost, parts with markup (20% to 30%), and a share of overhead. Then add your target margin. For example, a faucet replacement at 1.5 hours labor, $60 in parts, and $40 overhead costs roughly $145. At 50% margin, your flat rate should be $290.
What is the average cost of a plumbing service call?
A typical plumbing service call costs $80 to $250 in hard costs: one plumber for 1 to 3 hours at $28 to $45/hr burdened rate, $25 to $150 in parts, plus truck roll overhead. Most companies charge $150 to $400 to the customer depending on the repair complexity and local market rates.
How do you calculate overhead for a plumbing business?
Add all monthly fixed costs: vehicle payments, fuel, insurance, tools, office rent, phone, marketing, and unbillable employee hours. Most plumbing companies carry $5,000 to $15,000/month in overhead. Divide by monthly job count to get per job overhead. A shop running 80 calls per month with $10,000 overhead has $125 per job in overhead costs to cover.
Knowing Your Numbers Is Step One
This calculator shows you one piece. The Growth Report shows you the full picture: where you're leaking revenue, what to fix first, and how contractors like you are growing past the ceiling.