Plumbing estimating
A plumbing estimating app that prices the parts you always forget
Tell Arez what you are replacing. It builds the quote with the fixture, the fittings, the expansion tank and the haul-away, in hours at your rate, with your markup.
Free to download. 7-day free trial, no card to start. Or start on the web.

The problem
Why plumbing estimates eat your evenings
Small parts eat the margin
Connectors, valves, a drain pan, an expansion tank. Leave them off and the job pays less than you thought.
Customers want the price on the call
A water heater customer with no hot water is calling three plumbers. The first clear price usually wins.
Code items vary by town
Permits, expansion tanks and venting change the number. Arez adds the permit line so it is never forgotten, and you set the amount.
How Arez handles it
One sentence in, an itemized plumbing estimate out
- Arez reads the job and tells you what it assumed: same location and venting; gas line in good condition; expansion tank required.
- It builds the estimate with your labor rate and your 20% markup. Labor is in hours, so it is easy to check.
- Change anything by saying it, then send it as a proposal the customer signs on their phone.
| Item | Qty | Unit price | Total |
|---|---|---|---|
| Materials | |||
| 50 gal gas water heater | 1 EA | $1,050 | $1,050 |
| Gas flex connector, valves and fittings | 1 EA | $85 | $85 |
| Thermal expansion tank | 1 EA | $75 | $75 |
| Drain pan | 1 EA | $35 | $35 |
| Vent connector | 1 EA | $45 | $45 |
| Labor | |||
| Drain and remove old heater | 1.5 HRS | $95 | $143 |
| Install, connect gas, water and vent | 3 HRS | $95 | $285 |
| Fill, light and test | 0.5 HRS | $95 | $48 |
| Permit and haul-away | |||
| Plumbing permit | 1 EA | $95 | $95 |
| Haul-away and disposal | 1 EA | $60 | $60 |
| Cost (materials $1,290, labor 5 hrs $475, other $155) | $1,920 | ||
| Your markup, 20% | $384 | ||
| Estimate total | $2,304 | ||
Built for plumbing
What plumbing contractors use in Arez
Parts lists that do not skip the small stuff
Supply lines, stops, P-traps and fittings come in with the fixture so the quote covers the whole job.
Snap a photo of the job
Send a photo with the size and Arez estimates from it, stating what it assumed so you can correct it in a sentence.
Change orders on the job
Find rotted subfloor or a bad shutoff? Add a change order the customer signs before you do the extra work.
Invoice and get paid
Send the invoice from the job. Customers can pay online by card or bank transfer.
Questions
Plumbing estimating app FAQ
Can Arez estimate from a photo?
Yes. Add a photo in the chat with the size or a short note and Arez returns an estimate with its assumptions listed. Correct anything by saying it.
Does it include permits?
Arez adds a permit line where the job usually needs one. You set or adjust the amount for your town.
Can I use my own parts prices?
Yes. Correct a price once or import your price list and Arez uses your prices on later estimates.
Can customers pay me in the app?
Yes. Invoices can be paid online by card or bank transfer once you connect payouts.
Is there a free trial?
Yes. Arez is free to download with a 7-day free trial of Professional. No card is needed to start.
Send your next plumbing quote from the driveway
Free to download. 7-day free trial, no card to start. Or start on the web.