Plumbing contract template — what it has to settle before work starts

What a plumbing contract needs to pin down — access, concealed conditions, code upgrades and who owns the diagnosis — with a template you can adapt and a plain warning about what it is not.

Read this before you use it

This is a checklist of what a plumbing contract has to settle — not a ready-to-sign legal document, and not legal advice. Most states regulate home improvement contracts: required disclosures, cancellation windows, deposit limits and licence display all vary, and some trades carry extra rules. Adapt this, then have a lawyer in your state review it before you put it in front of a customer.

plumbing contract checklist

Download as a spreadsheet to work through, or print it to sit alongside your own agreement.

Checklist (Excel / Sheets) Printable PDF

What a plumbing contract has to settle

A plumbing contract is mostly about the unknown behind the wall. The scope has to say what is included at the fixture and what happens when opening a wall reveals something else, because that is the normal case, not the exception. Code upgrades triggered by the work — expansion tank, venting, shutoffs — need naming as either included or excluded before anyone signs. Access and protection matter: the contract should say who moves what, who protects finished floors, and what water shut-off windows the household is agreeing to.

Clauses it needs

Parties, licence number, and the property address the work happens at
Scope: fixtures and runs included, stated to a level a homeowner can check
Exclusions, named individually — this is the section that prevents disputes
Concealed conditions: the allowance, the unit rates, and the written-approval rule
Code upgrades triggered by the work: included or excluded, stated explicitly
Payment schedule: deposit, progress points, final, and what final depends on
Water shut-off windows and access the household is agreeing to
Warranty on labour and on parts, with terms and what voids each
Change orders: written before the work, signed by both, priced at stated rates
Permit responsibility, and which inspections must pass before final payment

What plumbing contracts actually get argued over

Diagnostic work billed after a verbal 'come take a look'
A code upgrade the plumber knew was coming and the customer did not
Concealed conditions priced after discovery rather than against an agreed rate
Who is responsible when a shut-off reveals a valve that will not reseat

The estimate this contract is built on

A contract can only be as clear as the scope it references. BidWand drafts the itemised estimate — labour, materials, exclusions and assumptions — that the scope and exclusions clauses point at.

Free plumbing estimate template →

Draft the plumbing estimate this contract references

This generates the estimate, not the contract — describe the job and you get the itemised scope to attach. No email needed to see the first one.

What you get — see the format first

A complete estimate you can send to the customer, built from the rate you enter:

Description	Qty	Unit	Unit price	Total
Labor — itemized by task	hrs	hour	your rate	—
Materials — with your markup applied	qty	ea / sq ft	cost + markup	—
Permits, disposal, access	—	—	—	—

Plus a plain-English scope summary, assumptions (what had to be guessed), exclusions (what you are not doing — the section that prevents most change-order arguments), and a validity period. Printable, or send the link.

Every figure comes from the rate and markup you supply. We never fill in a market price for you.

Related guides