Quote vs Estimate vs Bid
An estimate is a good-faith projection, a quote is a firmer offer for defined work, and a bid is a formal competitive submission. Choosing the right document sets expectations before the job starts.
What is an estimate?
Use an estimate when important details are still unknown. It communicates an expected range or likely cost based on current information. State clearly which assumptions could change the final price.
What is a quote?
Use a quote when the scope is sufficiently defined to commit to a price for a stated validity period. Include exclusions and a change-order process so newly discovered work does not silently expand the agreement.
What is a bid?
A bid usually answers a formal request and follows a required structure, deadline, and selection process. Commercial and public work may require bonds, alternates, compliance documents, or a fixed bid form.
Which one should you send?
- Send an estimate during early discovery
- Send a quote when scope and pricing are ready for approval
- Send a bid when responding to a competitive tender or formal invitation
Avoid label confusion
The title is not enough. The document body should state whether pricing is fixed, estimated, or subject to measured quantities. Local law may assign specific meaning to these terms, so confirm requirements in your market.
Frequently asked questions
Is a quote legally binding?
That depends on the wording, acceptance, jurisdiction and surrounding contract terms. A quote can become part of a binding agreement after acceptance.
Can an estimate change?
Yes. An estimate is a projection, but contractors should explain why it may change and communicate revisions before completing additional work.
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