Quote vs Estimate: The Difference (and When to Send Each)
By QuotApp Team · August 1, 2026
A quote is a fixed price offer that is generally binding once your client accepts it. An estimate is an educated approximation of cost that can change as the work is defined. If you can commit to the number, send a quote. If the scope still has unknowns, send an estimate — and say what could move the price.
The difference at a glance
| Quote | Estimate | |
|---|---|---|
| Price | Fixed | Approximate (±10–15% is typical) |
| Binding? | Generally yes, once accepted | No |
| When to use | Scope is fully defined | Scope has unknowns |
| Validity | Stated period (e.g. 30 days) | Informal |
| Client expectation | “This is what I’ll pay” | “This is roughly what I’ll pay” |
When to send a quote
Send a quote when you have seen the job, measured what needs measuring, and know your costs. A quote signals confidence — and clients prefer certainty. Include a validity period (“valid for 30 days”) so rising material costs don’t trap you, and itemize labor, materials and extras so the price is defensible.
When to send an estimate
Send an estimate early in the conversation, before a site visit, or when conditions could change the work — hidden damage behind a wall, unknown site access, fluctuating material prices. State the assumption explicitly: “Estimate assumes standard subfloor condition; price revised if repairs are needed.” An estimate that explains its own uncertainty builds more trust than a suspiciously round number.
Can a client hold you to an estimate?
Generally no — an estimate is not a contract. But wildly lowballing an estimate to win work and then doubling the bill invites disputes and, in some jurisdictions, consumer-protection complaints. A good practice: if the final cost will exceed the estimate by more than 10–15%, stop and get written approval before continuing.
Turn one document into the other
The efficient workflow: estimate → quote → invoice, keeping the same line items throughout. Client sees consistency; you avoid re-typing. The free QuotApp quote maker lets you switch a document between quote and estimate with one click, or start from a quote template or estimate template.