How to write a plumbing estimate
In plumbing, what you can't see (pipes inside the wall, the condition of old lines) causes the most disputes. A clear estimate says what you'll do, what you'll replace and what happens if something else turns up.
Repair or installation: two ways to quote
For an installation (a new bathroom, a water heater) you can detail everything upfront. For a repair, quote the diagnosis and the expected fix, and state that if opening up reveals another problem, it will be quoted separately.
What to include
- Service call or diagnosis, if you charge for it.
- Labor per task: supply line replacement, faucet replacement, drain cleaning, etc.
- Materials with size and type: 1/2" PEX, 1/2" ball valve, etc.
- Whether walls need opening and who repairs them afterwards.
- Warranty on labor.
Permits and gas work
If the job requires a permit, a licensed gas fitter or a utility inspection, list it as a separate item and explain the timing: the client needs to know it doesn't depend only on you.
Example: kitchen faucet and supply lines replacement
Sample prices: adjust them to your area and your costs.
| Type | Description | Quantity | Unit price |
|---|---|---|---|
| Labor | Remove old faucet, install new one and leak test | 1 job | $180.00 |
| Materials | Braided stainless supply line 16" | 2 units | $12.00 |
Sample total: $204.00
- Faucet supplied by the client.
- If the shut-off valves don't close, replacing them is quoted separately.
- Warranty: 3 months on labor.
Frequently asked questions
Should I charge for the service call if they don't hire me?
It's common and reasonable, especially if it includes a diagnosis. Just say so before you go and, if you get the job, state whether the fee is credited.
What if I find another problem once I open things up?
Stop, show the client what you found and send an additional estimate before continuing. If your original estimate already said so, there's no dispute.
Do it from your phone
With ServiProPlus you enter the job, materials and labor, and in a minute you have a PDF estimate with your details, ready to send. It has a free plan.