How to Write a Plumbing Estimate (Step by Step)
A plumbing estimate is a promise. If it’s vague, you’ll eat extra costs. If it’s too high without explanation, you’ll lose the job. Here’s how to write one that wins work and protects your margin.
Step 1: Inspect before you quote
Never give a firm price for hidden problems. Charge a call-out fee or offer a “quote range” until you’ve seen the job site.
Step 2: Break down labour and parts
Separate:
- Labour — hours × your hourly rate
- Parts — taps, pipes, valves (mark up 15–30% for sourcing)
- Call-out fee — covers travel and first 30 minutes
Step 3: Add contingency for unknowns
For renovation work behind walls, note: “Additional work discovered on site will be quoted before proceeding.”
Step 4: Include tax and payment terms
State your tax rate, total, deposit required, and when the balance is due.
Step 5: Set a validity period
“Quote valid 30 days” protects you from material price changes.
Step 6: Send a professional PDF
A branded PDF beats a text message. Use EasyQuotes to generate one in minutes.
Common mistakes
| Mistake | Fix |
|---|---|
| One lump sum with no breakdown | Itemise labour and parts |
| Forgetting call-out travel time | Add a call-out line item |
| No expiry date | Add 14–30 day validity |
| Sending via SMS only | Email a PDF attachment |
Tools that help
- EasyQuotes — fast PDF quotes for solo plumbers
- Jobber — quotes + scheduling when you’re growing
- FreshBooks — if you also need invoicing and accounting
Need a quote right now?
Skip the spreadsheet. EasyQuotes lets you build a professional trade quote in under 2 minutes — free to start.
Try EasyQuotes free →FAQ
What's the best free quoting tool for tradies?
For a simple quote without full job management, EasyQuotes is a good starting point. For all-in-one field service software, compare Jobber and Housecall Pro in our guides above.
Do I need invoicing software if I only send a few quotes a month?
If you send fewer than 5 quotes a month, a dedicated quote tool or template may be enough. Once you're invoicing regularly, accounting-focused tools like FreshBooks or Wave make tax time easier.
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