Plumbing estimate template

Download the Plumbing estimate template

The same sample document in two formats. The PDF is what a finished estimate looks like; the spreadsheet has live formulas, so change a quantity or a rate and the totals follow.

No signup, no email, no watermark. Sample figures — edit everything. Opens in Excel, Numbers and Google Sheets.

See this estimate filled in, in the builder — the same sample, editable.

What a Plumbing estimate needs on it

Plumbing estimates get disputed over two things: what the fixture actually is, and what happened when you opened the wall. Write the fixture make and model so nobody assumes the builder-grade version, and name the code upgrades a modern install triggers — expansion tank, pan and drain, seismic strapping — before the inspector does. A homeowner who reads those on your estimate understands why the cheap bid is cheap.

Estimate anything involving existing supply or drain lines you have not scoped. Galvanised pipe that crumbles at the union, a drain with no accessible cleanout, and a shutoff that will not close are the three findings that most often move a plumbing number, and they belong in your exclusions in writing.

• Fixture make, model and finish — "toilet" and "comfort-height elongated, brushed nickel trim" are different bids
• Code upgrades the install triggers: expansion tank, pressure-reducing valve, pan and drain line
• Access notes — whether the price assumes an accessible shutoff and a workable clearance
• Whether drywall, tile or finish carpentry repair is included, since it usually is not
• Permit and inspection, which most jurisdictions require for water heaters and repipes

And what every estimate needs

Use an estimate when the scope is clear but the final number can still move — concealed damage, a substrate you cannot see until demo, or material prices that change between bid and start date.

• An expiry date, so a months-old number cannot be held against you
• Scope written plainly enough that a homeowner knows what is excluded
• A deposit or payment schedule if you need money before mobilising
• A signature line, so acceptance is recorded rather than remembered

Plumbing line items included in this template

These load into the builder ready to edit. Prices are starting points, not our opinion of what you should charge — set your own and they save to your price book.

Rates are illustrative US figures and vary widely by market. Price your own work.

How plumbers price this work

Residential plumbing splits between flat-rate task pricing and hourly service work. Flat-rate is the norm for known jobs — a water heater swap, a toilet install — because the customer wants a number before you start. Hourly with a service-call minimum fits diagnostics and anything behind a wall. The honest middle ground is a flat price with a stated allowance for what you cannot see.

Questions

Should a plumbing estimate include drywall repair?

Only if you are actually doing it — and say so either way. "Access holes cut as required; drywall repair and paint by others" on the estimate prevents the most common plumbing dispute there is, which is a customer expecting to get their wall back finished.

How do I price a job when I cannot see the pipe?

Quote the visible scope as a fixed price and carry an allowance with a stated unit rate for what is behind the wall — for example, so many feet of replacement at a per-foot price. The customer gets a real number and you are not absorbing a discovery you had no way to price.

Do I need a permit for a water heater replacement?

In most US jurisdictions, yes, and it is inspected. Put the permit on the estimate as its own line rather than burying it in labor: it shows the customer why a permitted install costs more than the handyman quote they also received.

Is an estimate legally binding?

Generally not, on its own — an estimate is an offer, and it usually becomes binding only once the customer accepts it and both sides act on it. What actually binds you is the language on the page: how you describe the scope, what you exclude, and whether you state that the price can change. This is general industry practice, not legal advice; if a job is large or unusual, have a lawyer look at your terms.

How long should an estimate stay valid?

Thirty days is the common default and it is short enough to protect you from material price swings. If you are quoting equipment with volatile pricing, shorten it — and say so on the page rather than in conversation.

Should I charge for estimates?

Many trades charge a diagnostic or assessment fee and credit it against the job if the customer proceeds. If you do, put it on the estimate as a line item with the credit spelled out, so it never reads as a surprise.