ToolbeltDocsEstimate vs quote vs bid at a glance
The three words are often used loosely, and many customers say "quote" when they mean an estimate. What matters is what your document promises. This table shows the usual meaning of each.
| Estimate | Quote | Bid | |
|---|---|---|---|
| What it is | Your best guess at the price | A fixed price for a defined scope | A price offered to win a job against other contractors |
| Can the price change? | Yes, within limits you explain | Not unless the scope changes | Not after it is accepted, unless the scope changes |
| Who asks for it | A customer exploring a job | A customer ready to decide | An owner, general contractor or agency choosing between contractors |
| Based on | A walkthrough, photos or a phone call | A full site visit and measurements | Plans, specifications and bid instructions |
| Typical jobs | Repairs where the problem is not fully visible | Standard jobs you have done many times | New construction, commercial and public projects |
| How long it is valid | Until the date you set | Until the date you set | As stated in the bid documents |
What is an estimate?
An estimate is an approximate price for a job, based on what you can see and measure before the work starts. It tells the customer what the job should cost and, just as important, what could make it cost more.
Estimates suit jobs with unknowns: a leak whose source you can't see, rot under old siding, or a repair where the damage may go further once you open it up. A good estimate itemizes labor and materials, lists what is not included, and says how changes will be handled, for example "any repairs found behind the drywall will be priced before work continues."
Our job estimate template is built for this: itemized lines, a valid-until date, a deposit and a customer signature. For larger projects, the construction estimate template groups costs into phases such as site work, framing and finishes.
What is a quote?
A quote is a fixed price for a specific, written scope of work. If the customer accepts it, you do that work for that price, and the price only changes if the customer changes the scope.
Give a quote when you know the job well: a standard roof replacement after measuring every slope, or repainting rooms you have walked through. Because you carry the risk of going over, a quote needs a tighter scope than an estimate: exact quantities, the materials and brands, what is excluded, and a date after which the price is no longer valid. On a roofing estimate, for example, that means stating the squares, pitch, tear-off layers and allowance for decking repairs.
What is a bid?
A bid is a price offered to win a job when the customer is comparing several contractors on the same scope. The scope is usually set by the customer, in plans, specifications and bid instructions, rather than by you.
Bids are common in new construction, commercial work and public projects, where a general contractor or agency invites bids and often must follow formal rules about deadlines, forms and how the winner is picked. Read the bid instructions carefully: a missing form or a late submission can disqualify an otherwise winning price. Once accepted, a bid works like a quote: the price is fixed for the scope in the documents.
Which one should you give your customer?
Give an estimate when you can't see everything the job involves, a quote when you can price every part of it with confidence, and a bid when you have been invited to compete on someone else's plans.
- Unknowns behind walls, under floors or inside equipment? Estimate, with a clear note on how extra work is approved.
- A job you've done dozens of times, fully measured? Quote, with a valid-until date.
- A request for bids with plans and a deadline? Bid, on the forms the bid instructions require.
How to keep the price from becoming an argument
Most disputes over estimates come from scope, not math. Whatever you call your document, write down what is included, what is not, and what happens if the job changes.
- Itemize labor, materials and other costs instead of one total.
- Add a "Not included" line for the things customers often assume, such as permits, haul-away or repairs found later.
- Set a valid-until date so old prices don't come back months later.
- Get the customer's signature before you start, and write changes up as change orders.
- When the job is done, convert the approved estimate into a contractor invoice so the final bill matches what was agreed.
For a step-by-step walkthrough, see how to write a job estimate.
Frequently asked questions
Is an estimate legally binding?
Not usually in the way a signed contract is, but it depends on the wording and where you work. Some states have rules about how far the final bill can go over a written estimate for certain work, such as auto repair or home improvement, so check your state's consumer protection office or contractor licensing board.
Is a quote the same as a contract?
No. A quote is an offer at a fixed price. It usually becomes part of a contract when the customer accepts it in writing, for example by signing it. Add a signature line and a valid-until date so it is clear when and how the quote was accepted.
What does "free estimate" mean?
It means you will look at the job and price it without charging for the visit. Some trades charge a diagnostic or trip fee for complex problems; if you do, say so before the visit, not on the estimate.
How do I make a quote instead of an estimate with this template?
Use the job estimate template, price every item firmly, list what is not included, set a valid-until date, and say in the terms that the price is fixed for the scope described. The document layout is the same; what changes is that you commit to the price.
What is a sealed bid?
A sealed bid is submitted privately by a deadline and opened at the same time as the others, so no bidder sees another's price first. It is common on public projects, which follow the procurement rules of the agency running the bid.