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Estimate vs. Proposal vs. Quote: What to Send

Know the difference between an estimate, a proposal and a quote, which one to send at each stage of a job, and how to word it so the price means what you intend.

Published · Updated · 4 min read

Illustration of a contractor and a customer reviewing the details of a job together on a tablet.
Illustration. A proposal is easier to approve when the client can see exactly what is included.

Quick answer

An estimate is an early, approximate price. A proposal describes the work in enough detail for the client to say yes. A quote is a fixed price for work that is fully defined. Send an estimate while the scope is still open, a proposal to win the job, and a quote once everything is settled, and always say in writing whether the price can change.

Key takeaways

  • Estimate: approximate, scope still open. Proposal: detailed, written to be approved. Quote: fixed price, scope settled.
  • The label matters less than the wording. State whether the price is fixed, what could change it, and until when it is valid.
  • Move from one document to the next by carrying the measurements and scope forward instead of starting over.
  • Record changes after approval in writing as a change order, with the new price and the effect on the schedule.
  • What is enforceable varies by state and trade. Ask your licensing board or a local attorney about contract rules where you work.

The three documents in plain language

Estimate, proposal and quote compared
CompareEstimateProposalQuote
PurposeGive an early idea of costExplain the work and win the jobCommit to a price for defined work
PriceApproximate; can changeItemized or total; fixed or approximate, as writtenFixed for the stated scope
DetailShort; scope may be looseScope, materials, timeline, terms, exclusionsWhatever the work needs, matched to the agreed scope
Send whenBefore a full walkthrough, or when the client wants a ballparkAfter the walkthrough, when the client needs to decideWhen scope and materials are settled
Client actionDecide whether to continueReview, ask questions, acceptAccept or decline
Estimate, then proposal, then quoteAn estimate is an early approximate price that can still change. A proposal explains the work in detail to help the client say yes. A quote is a fixed price for defined work.EstimateEarly, approximate priceThe price can still changeProposalExplains the work in detailHelps the client say yesQuoteFixed price, defined workScope and terms are settled
Most jobs move from an early estimate to a detailed proposal, and end with a fixed price.

Which one should you send?

Ask three questions about the job.

  1. Is the scope clear? If you still need a walkthrough, material choices or the client’s decisions, send an estimate and say what is still open.
  2. Does the client need convincing, or just a number? For larger jobs, several decision-makers or competing bids, send a proposal that explains your approach, not only a total.
  3. Can you hold the price? If scope, materials and access are settled, give a fixed price and state what is included and excluded.

For a small, simple job, one short document can do all three: the scope, a price, a start date and an expiry date.

Make the wording match your intent

Contractors and clients use these words loosely. A client who reads “quote” may assume the price is fixed, and one who reads “estimate” may assume it is a ceiling. Do not leave it to the label.

  • Say whether the price is fixed, approximate or not to exceed
  • List what could change it: hidden damage, extra prep, material prices, scope changes
  • Put an expiry date on the document
  • Say how changes will be priced and approved

When the scope changes

A change order is a written record of a change after the client has approved the work: what changed, the new price and any effect on the schedule, agreed by both sides. It turns a spoken “can you also do the hallway?” into something you can both check later.

Even for small additions, write down what was added and what it costs before you do the work.

How this works in Estiggle

Estiggle’s proposals hold the client, the job address, the scope, itemized pricing and a place for the customer to accept. Whether you call a document an estimate or a quote is about how you word it: set the validity and the terms in the proposal, then email the customer a link to review it. When they accept, create the invoice from the same work. How to create and send a proposal in Estiggle shows each step.

An Estiggle proposal with the scope, itemized pricing, terms and a place for the customer to sign. Fictional example data.

Frequently asked questions

Is an estimate legally binding?

It depends on what the document says and on local law, so do not rely on the label. An estimate that clearly says the price is approximate and lists what could change it sets a different expectation than one that gives a fixed total. If you need certainty, ask your licensing board or a local attorney.

Can I turn an estimate into a proposal?

Yes. Keep the measurements and scope from the estimate and add what the client needs to decide: materials, schedule, terms, exclusions and acceptance. In Estiggle you create the proposal against the same client.

What is a change order?

A written record of a change to the agreed work after approval, with the new price and any effect on the schedule. Both sides should agree to it before the extra work starts.

How long should an estimate or quote be valid?

Choose a window that matches how long your own prices hold, and state it on the document. Material and labor costs change, so an expiry date protects you.

What should I send first, a proposal or an estimate?

If the client only wants a ballpark, send an estimate. If they are ready to decide and you have walked the job, send a proposal. For a painting job, how to write a painting estimate shows how to build the numbers either way.