When a quote becomes a contract

You send a quote. The client says yes. Done deal, right?

Mostly yes. Under UK law, an accepted quote is a binding contract. No courtroom. No ceremony. Just an offer and an acceptance.

Here is how it works, and how to keep yourself safe.

Your quote is an offer

A quote says what you will do and what it will cost. That is an offer.

When the client accepts it, you have a contract. Both sides give something of value. You give the work. They give the money. The law calls that exchange consideration, and it is one of the things that makes a contract binding.

The other things are simpler than they sound. Both sides must mean to be bound. The terms must be clear. That is it.

What acceptance looks like

Acceptance is usually plain and simple. The client writes "yes, please go ahead". The client signs your quote. The client pays the deposit.

Starting work can also count. If the client opens the door and you get going, that is an act of agreement. But starting with nothing written down is risky. More on that below.

One detail matters. Acceptance must match the offer exactly. If the client replies "yes, but do it for less", that is not acceptance. That is a counter offer. Nothing is agreed until you both settle on the same terms.

Quote versus estimate

These two words are not the same.

A quote is a fixed price. Once accepted, you do the work for that price.

An estimate is a rough guide. It can move up or down.

Use the word that matches what you mean. If you head a document "estimate" and the client treats it as a fixed price, you have a dispute waiting to happen. When in doubt, call it a quote and price it with care.

A spoken yes counts, but get it in writing

A contract does not have to be written down. A spoken "yes" on the phone can bind you just as well.

The problem is proof. Months later, memories differ. The client remembers one price. You remember another. No document settles it.

So make written acceptance your habit. Ask the client to reply in words to your quote message. "Confirmed, please go ahead" in a text or an email is enough. It takes seconds and it stops arguments before they start.

Put a time limit on every quote

Prices move. Materials move faster. A quote left open for months can be accepted when your costs have risen.

Add one line to every quote: "This quote is valid for 30 days." Once that date passes, the offer is off the table. The client needs a fresh price.

The 14 day rule for home jobs

This one catches many tradespeople out.

When you agree work in a client's home, consumer law gives the client 14 days to change their mind. This cancellation right comes from the Consumer Contracts Regulations 2013. It covers agreements made away from your business premises, for example during a visit to quote in the client's kitchen.

The client can ask you to start inside those 14 days, but that request must be in writing and they must know what right they give up. You should give them the cancellation information up front in writing too.

This is real law with real penalties, so get advice on the exact wording if you are unsure.

When the client keeps changing the plan

An accepted quote locks the scope. That is its power. But many clients change the plan mid job. An extra socket here. A different tile there.

Treat each change as a new agreement. Price it. Write it down. Get the client to agree before you do it.

This is where most margin quietly disappears. Small "just quickly" extras, done without an agreed price, become big losses by the end of the job.

How PlusWise helps

PlusWise keeps your quotes, their prices, and the client's acceptance in one place. Send the quote from the app. See when the client views it and accepts it. Then turn the accepted quote into a job and an invoice without retyping a single number.

When the scope changes mid job, add the extra as a new line on the job so the price is agreed in writing before you lift a tool.

Quick answers

Can I withdraw a quote before the client accepts? Yes. You can pull back an offer any time before acceptance. Do it clearly and in writing, so nobody is in doubt.

Does a paid deposit mean the client accepted? Payment is strong evidence of acceptance. But keep the written confirmation too. Belts and braces.

What if the client only agreed verbally? In law you have a contract, but in practice you have a weak position. Write down what was agreed straight after the call and send it over: "Just confirming what we agreed." If they do not object, you have your paper trail.

---

Sources checked October 2026: Lexology summary of UK contract formation (offer, acceptance, consideration, intention, certainty of terms); legislation.gov.uk, the Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013.