Plumbing change order builder

The job changed — get it in writing before you do the work. Fill this in on your phone, and hand the customer a clean change order showing what changed, what it costs, how it moves the schedule and the new contract total.

✓ Saved only in this browser · nothing is sent to our servers · no account

Your business

Business name

Phone / email

License #Optional

Customer & job

Customer

Job / contract #Optional

Job address

Change order #

Date

The change

Reason

Original scope (what was agreed)

Changed scope (what's being added or removed)

Cost lines

Markup on materials

Sales tax on materials0 if your state doesn't tax it

Contract & schedule

Original contract amount

Earlier approved change orders

Schedule impactWorking days added (0 if none)

Payment

Open job file

Your draft saves automatically in this browser. "Save job file" downloads it so you can keep it with the job or open it on another device.

Tired of doing this by hand?

AIChainWorks (our sister business) builds automations that send change orders from the field to the office for approval and update the job file automatically. See how it works.

Why a written change order matters

Most payment disputes on service jobs start with "I didn't agree to that." A signed change order records what changed, why, what it costs and how it affects the schedule — before the extra work starts. Get the customer's signature (or a written "approved" by email or text) first.

This tool formats your numbers and wording; it isn't legal advice or a contract written for your state. Some states and contracts have specific rules for change orders and home-improvement work — check yours.