How to write a plumbing estimate customers can trust.

Before: “Fix leak — 480.” After: “Illustrative repair only: replace the accessible supply connector serving the identified fixture, test the completed connection, and remove the replaced connector. Assumes the existing shutoff operates. Concealed pipe work, wall repairs, and fixture replacement are excluded.” A qualified professional must define the actual work; this writing example is not a repair instruction.

Illustrative amounts below are arbitrary writing examples, not suggested market prices. This example assumes no discount or tax and no deposit. Determine actual tax treatment and required disclosures for the job before issuing an estimate.

An inspection may reveal that the original scope is incomplete. Stop at the approval boundary, describe the additional findings, and issue a clearly identified revision. An installation estimate should identify the specified equipment or fixture, access assumptions, removal, and work supplied by others. Avoid turning a verbal discussion into an assumed authorization.

Include the customer, service address, estimate reference, revision, issue date, and any approved validity period. State who can approve, how changes are handled, and what happens next. Obtain local review of contract terms, deposits, cancellation rights, permits, and warranty language. The downloadable worksheet is an administrative starting point, not a reviewed contract.

Example to try: Example scope: Replace leaking under-sink shutoff valve, test for leaks, and remove replaced parts; exclusions: drywall, cabinet restoration, concealed line replacement. Pricing must be set by the actual contractor.