What belongs in every estimate

Four weeks into a bathroom remodel, the customer asks why hauling the old cast-iron tub to the dump is an extra charge. You know it was never in the price. She saw "demolition" on the estimate. Neither of you is lying. The document never said who was right.

Most fights about a job trace back to something the estimate never said. Here is what each block does, and what it costs you when it is missing.

What a complete estimate contains

The identity lines decide who is on the hook

A trade name is not the entity. If the LLC is registered as M. Torres Services LLC and the estimate says only "Mike's Plumbing," the paperwork names something a court or a licensing lookup may not connect back to you. Contractors have lost mechanic's lien claims over that mismatch, and some states bar you from enforcing a contract signed under a fictitious name you never registered. How hard it bites depends on your state. The fix is cheap either way: put the legal name on it and add the DBA after, not instead.

Commercial customers ask for that legal name and your taxpayer ID — an EIN, or your SSN if you are a sole proprietor — on a Form W-9, so they can issue a 1099-NEC. If the name and number do not match IRS records, the IRS notifies the payer, and a payer who cannot get it corrected is required to start backup withholding at the current rate. That is your money held back until somebody fixes a typo.

Job site and billing address are two fields because they are often two places. An invoice addressed to the rental unit lands on the wrong desk, and a 30-day invoice becomes a 60-day one.

Scope is two lists, not one

Write what you are doing, then what you are not. The second list saves the job.

Exclusions worth naming, because customers reasonably assume they are included: permits and municipal fees, disposal and dumpster costs, moving or protecting furniture, drywall patching after a wire or pipe run, restoring landscaping after a trench, code upgrades an inspector calls for once the wall is open, and repair of anything found behind a finished surface. On a pre-1978 house, lead-safe work under the EPA's Renovation, Repair and Painting rule costs real money and belongs in writing.

An exterior paint estimate that says "surface prep" and stops has already lost the argument about rotted trim. The version that says "excludes replacement of rotted trim or sill; if found, priced by change order before work continues" has not, because the customer agreed to the mechanism in advance.

Materials and methods matter wherever a substitution changes the price. A 30-year architectural shingle and a 3-tab are both "shingles," and two condensers of the same tonnage with different efficiency ratings are thousands apart. Name the product you priced, then say what happens if the supply house is out: "or an equivalent at equal or better specification, with your approval."

Money: the breakdown, the tax line, the terms

A single number gives you nowhere to go. When the customer says you are $2,000 over budget, an estimate that separates labor, materials, subs, permits and disposal lets you show what dropping the tile allowance saves — a lump sum leaves you discounting your own labor to get there. How far to break the price down, and when a lump sum is actually the stronger choice, is its own question: see why line-item detail wins trust.

The tax line earns its space even when the answer is no tax. Whether you charge sales tax depends on your state, on whether labor is taxable there, on whether the job counts as repair or new construction, and in many states on whether you count as the consumer of the materials you permanently install into real property. There is no national answer, and it can differ between two trades in one state. Put your answer on the document: "plus applicable sales tax" discovered at the end is a four-figure surprise on a job worth tens of thousands. Your state revenue department publishes the rule for your trade.

Payment terms mean a deposit, the points where you bill again, when the final payment is due, and what happens if it is late. Several states cap what you may collect up front on residential work, and the caps are not alike: California's contractors board limits the down payment on a home improvement contract to 10 percent of the contract price or $1,000, whichever is less, while Massachusetts allows up to a third. Check your state's contractor board before writing a percentage into a template.

The clock: validity, schedule, approval

Supplier quotes hold for a set window, often 7 to 30 days. An estimate with no expiration is an open offer against a cost that expired months ago, and the customer who accepts in July at a March price is not doing anything wrong. Put a date on it, and say the price is re-quoted after that, not cancelled.

A timeline is a window plus its dependencies, not a promise. "Roughly four working days on site, starting within two weeks of deposit and permit approval" survives a slow building department. A bare start date means the customer books the flooring installer behind you and blames you when the inspector does not show.

A verbal yes on a job you revised twice leaves no record of which price was accepted. Signature, email or accept button, it has to attach to a numbered, dated version.

What to leave out

Your costs and your markup. A customer who learns your margin starts negotiating that instead of the job.

Subcontractor names next to their prices. That is a supplier list, and an invitation to call around you.

"TBD" on a line. An open item is an open argument. Use a stated allowance instead — "$1,200 tile allowance; anything above billed at cost plus markup" — so the number has a ceiling and a rule.

Boilerplate you have not read. Indemnity, arbitration and warranty clauses pasted from a template written for another state can be unenforceable, or enforceable in a way you did not intend. And drop "prices subject to change" — the validity date does that job properly.

Where these blocks live between jobs

Most of this list is identical on every job: the entity name, the license number, the standing exclusions, your terms, your validity window. Retyping it late in the evening is when it goes missing. In DoneQuote those blocks sit on the estimate already, so pricing a job means writing the scope and the numbers — and the exclusion you added after one bad job stays there for every job after.

Before you send

Read it as the customer. If you find work you intend to do that is not named, or work you do not intend to do that a reasonable person would assume is included, you have found the sentence the argument will be about.