The legal value of a quotation signed by the customer may vary depending on the laws and regulations in force in your specific country or region. However, here are a few :

Written contract:

A quotation signed by the customer can be considered as a written contract between the parties involved. This means that the terms and conditions specified in the quotation may be legally binding on both parties.
Acceptance of terms: By signing the quotation, the customer indicates acceptance of the terms and conditions set out therein. This may include details of the products or services to be supplied, prices, timescales, payment terms and other important conditions.

Proof of agreement:

The signed quotation serves as tangible proof of the agreement between the customer and the service provider or seller. In the event of a subsequent dispute, the quotation can be used as proof that both parties agreed to the terms specified.

Possible changes:

It is important to note that if the customer wishes to make changes to the terms of the quotation after signing it, these changes must be mutually agreed and documented in writing to be legally binding.

The customer has paid a deposit:

If a deposit has been paid, the customer can go back on his decision to accept the quotation, but will lose the amount paid.On the other hand, if the customer has paid a deposit, the contract is firm and definitive: neither the professional nor the customer can renege on their commitments without risking having to pay damages. Unless otherwise specified, the sum paid on signing the quotation is deemed to constitute a deposit.

Suppliers’ prices have risen since the quotation was signed:

If suppliers increase their prices between the time the quotation is drawn up and the time it is accepted by the customer, you need to check whether the contract contains a price variation clause. If this is the case, the professional is perfectly entitled to re-evaluate his prices on the day he carries out the work, without obtaining the customer’s authorisation. If this is not the case, the professional cannot unilaterally change the price or suspend performance of the service. It is only possible to negotiate a price change amicably if the customer agrees.

Legal advice:

An individual customer has a 14-day cooling-off period after signing the quotation. To exercise this right, they must send a registered letter with acknowledgement of receipt.

In some cases, it is advisable to consult a lawyer or legal expert to ensure that the quotation and its terms provide adequate legal protection in the event of a dispute.


It’s essential to remember that laws vary from place to place, so it’s always wise to consult a legal professional for legal advice specific to your situation.