Estimate vs Quote vs Bid: What Each One Means and When to Send It
Estimate, quote, bid, proposal. Contractors use them for the same piece of paper, homeowners hear four different promises, and the difference only surfaces when the price changes. Here is what each word means, what it commits you to, and how to word the document so both sides are holding the same thing.
The short version
| Word | What it means | What it commits you to | Where it is used |
|---|---|---|---|
| Estimate | An approximate price for work that is not fully defined yet | A good-faith number; the final price can move as the scope firms up, within limits | Residential renovation, repairs, anything with unknowns |
| Quote | A fixed price for a defined scope | That price, for that scope, until the valid-until date — changes need a change order | Residential and small commercial work with a settled scope |
| Bid | A formal offer in a competitive tender where everyone prices the same documents | The price and the scope in the tender documents, often with a bid bond behind it | Commercial, institutional and public work |
| Proposal | A quote wrapped in a sales document: scope, price, schedule, approach, terms | The same as a quote once accepted | Larger residential jobs, design-build, additions |
Estimate: the number that can move
An estimate says this is roughly what it will cost. It is the right document when something real is still unknown — what is behind the tile, whether the joists need sistering, which vanity the client will pick — and the honest thing is to say so. A proper estimate lists the scope line by line, marks the lines that are allowances, and says how the final price will be settled: by change order, by the actual cost of the allowance items, or both.
Two things make estimates dangerous when they are done badly. The first is a single number at the bottom with no scope above it, which a homeowner will read as a quote. The second is treating the word estimate as permission to charge whatever it comes to. In Ontario that is not how the law reads:
Under the Consumer Protection Act, if a supplier gives an estimate, the final price cannot be more than 10 percent above it unless the consumer has agreed to a different price or a change in the work.
So an Ontario estimate is a ceiling with a 10 percent tolerance, and anything above that needs the client's agreement in advance — which is exactly what a signed change order is. Other provinces and states differ in the detail, but the principle that an accepted estimate is a contract with a price term in it is close to universal. Say what the price term is.
Quote: the number that does not
A quote says this is the price. Once the client accepts it, you are committed to that price for that scope until the date you said it was valid to. The scope is the whole protection: if the quote says twelve pot lights and the client wants sixteen, the extra four are a change order at your rate; if the quote does not say how many pot lights, the client will assume sixteen were included.
A quote should carry, on the document:
- The scope, line by line, with quantities where they matter — square feet of tile, linear feet of cabinet, the number of fixtures.
- Allowances for anything the client has not chosen yet, with the allowance amount stated, so the price moves by the difference and nothing else.
- Exclusions — permits, design, appliances, painting, disposal — whatever is not in it.
- A valid-until date. Material prices move; thirty days is common.
- What triggers a change order, and that no changed work proceeds without one in writing.
- The payment schedule: deposit, draws, completion, holdback where your province requires it.
Contingency belongs inside your cost on a quote, not as a visible line the client will ask to remove. Contingency versus markup covers where each one goes.
Bid: the number in a tender
A bid is a quote submitted in a competition. An owner or a general contractor issues drawings, specifications and a set of conditions; several contractors price the same documents by the same deadline; the bids are opened together. The scope is not yours to define — it is in the tender documents, and your bid is an offer to do exactly that scope for the stated price, often backed by a bid bond that pays the owner if you win and walk away.
Residential renovation almost never works this way. A homeowner getting three prices is comparing three different scopes, not three bids on one, which is why the cheapest one is so often the one that left something out. If a client tells you they are “taking bids”, the useful response is to make your scope so explicit that the comparison is honest.
Proposal: the quote with the pitch attached
On a larger job — an addition, a whole-house renovation, design-build — the document that wins the work is a proposal: the scope and the price, plus the schedule, how you will run the job, who is on it, your warranty and your terms. It commits you to the same thing a quote does once it is accepted. The difference is what the client reads before the number.
Which one to send
- Send an estimate when real unknowns remain and you can name them: hidden conditions, unmade selections, a permit set that is not finished. List the allowances and say how the final price is settled.
- Send a quote when the scope is settled: drawings in hand, selections made, site seen. Fix the price, list the exclusions, date it.
- Send a bid only when someone has issued tender documents and asked for one.
- Send a proposal when the job is big enough that how you will run it matters as much as what it costs.
Whichever you send, the title on the document matters less than three sentences near the price: whether the number is fixed or approximate, what is excluded, and that changes are priced in writing before the work is done.
Wording that keeps everyone honest
Three lines that belong on a residential estimate or quote, adapted to your own terms:
“This price is fixed for the scope listed above and is valid until [date]. Items marked Allowance are budget figures; the final price changes only by the difference between the allowance and the actual cost of the item selected.”
“Work not listed above is excluded. Any change to the scope, including hidden conditions found after work begins, will be priced as a written change order and approved before that work proceeds.”
“Payment: [deposit] on signing, [draws] at [milestones], balance on completion, less holdback where required by law.”
Where Estiquik fits
An Estiquik estimate is the line-by-line document above: quantities, units and rates per line, allowances marked, a valid-until date, the payment schedule as stages, and your terms. The client approves or signs it from their phone, and every change afterwards is a priced, signed change order that rolls into the revised contract value — which is how an estimate stays inside Ontario's 10 percent without an argument at the end. How to estimate a renovation job walks through building the number itself.
Questions contractors ask
What is the difference between an estimate and a quote?
An estimate is an approximate price for work that has not been fully defined yet; the final cost can move as the scope firms up. A quote is a fixed price for a defined scope, and once the client accepts it you are committed to that price unless the scope changes. Many contractors send a document titled Estimate that is in substance a quote, which is why the wording on it matters more than the title.
What is a bid?
A bid is a formal offer to do a defined scope for a stated price, submitted in a competitive process where several contractors price the same documents — a tender. Bids are the norm on commercial and public work and rare on residential renovation, where a homeowner usually gets two or three quotes rather than running a tender.
Is an estimate legally binding?
Not as a fixed price, but it is not meaningless either. In Ontario, the Consumer Protection Act says a supplier cannot charge more than 10 percent above an estimate unless the consumer agreed to the change. In most places, an accepted estimate plus the work starting is a contract; the question is what price term it contains. Say on the document whether the number is fixed or approximate.
Should I call my document an estimate or a quote?
Match the word to the commitment. If the price is fixed for the listed scope, call it a quote (or a fixed-price estimate) and say what is excluded and what triggers a change order. If real unknowns remain — what is behind the wall, the final tile selection — call it an estimate, list the allowances, and say how the final price will be settled.
What is a proposal?
A proposal is a quote with a sales document wrapped around it: the scope, the price, the schedule, your approach and your terms, usually for a larger job. On residential work a good estimate with clear terms does the same job.
How do I keep a quote from turning into a loss?
Define the scope line by line, state the allowances and exclusions, put a valid-until date on it, and price every change as a written change order before the work is done. Contingency belongs in your cost, not in a vague number at the bottom.
Related: cost-plus versus fixed price — which contract form fits the job, and what each one has to say.
Send the estimate with the scope on it, and price every change in writing. Free plan, no card; e-signature on Starter, change orders on Pro.
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