Quote vs estimate vs proposal: what is the difference
Do you use these words interchangeably? They are not the same. And the difference can cost you money or a client.
Clear definitions: quote, estimate, and proposal
These three terms are used interchangeably in everyday conversation, but they mean different things in practice and before the law.
A quote is a document that presents a fixed price for a specific job. When you deliver a quote for 2,500 euros to paint an apartment, you are committing to that price. If materials go up 10% after the client accepts, that is your problem; the price was fixed.
An estimate is an approximation. You tell the client "this should cost between 2,000 and 2,800 euros" based on your experience, but without a fixed price commitment. Estimates are useful for giving an idea before visiting the site or doing a detailed survey.
A proposal is the most complete document. It includes the quote (detailed pricing) plus commercial terms: execution timeline, payment conditions, validity period, guarantees, and exclusions. A proposal is what you send when competing for larger jobs or when the client asks for something formal.
In practice, most professionals use "quote" for everything. And that is fine for everyday jobs. But knowing the difference helps protect you when a client complains that "the quote said X" and you had only given an estimate.
When to use each one
The choice between quote, estimate, and proposal depends on two factors: the size of the job and the degree of certainty you have about costs.
Use an estimate when you have not visited the site yet or when the job has variables you cannot control. For example: "Leak repair, estimated between 300 and 600 euros depending on the source of the leak." The estimate protects you if the problem is more complex than it appeared.
Use a quote when you have visited the site, know exactly what needs doing, and can calculate materials and labour precisely. For example: "Consumer unit replacement from single to three phase, 647.60 euros as itemised." The price is fixed and the client can accept with confidence.
Use a proposal for jobs above 3,000 or 5,000 euros, for business clients, or when competing with other professionals. The proposal shows you are organised and professional. Include the execution timeline ("5 working days"), payment terms ("50% upfront, 50% on completion"), validity ("valid for 30 days"), and what is excluded ("does not include painting after the work").
For the vast majority of everyday jobs, repairs, small installations, and maintenance, a detailed quote is sufficient. It is what clients expect and it is what Prummo creates automatically.
Legal implications
An accepted quote can have contractual value, even without a formal signed contract. This is important and many professionals are not aware of it.
When you send a quote with detailed pricing and the client accepts in writing, whether by WhatsApp, email, or signing the document, a binding agreement is created. If you then want to charge more than the quote stated, the client can refuse and has legal grounds to do so.
That is why, if there is uncertainty in costs, you should use the term "estimate" and clearly indicate the range of values. If the quote is fixed, make sure it includes everything: materials, labour, travel, and VAT if applicable, so there are no surprises.
Some good legal practices: always include a validity period on the quote ("valid for 15 days" or "valid for 30 days"). After that period, you can recalculate if material prices have changed. Include clear exclusions: what is NOT included in the price. "Does not include wall demolition" or "does not include paint materials" prevents arguments.
If you use Prummo, the fact that the quote is digital and the client accepts online creates a clear record of what was agreed. It is more secure than a verbal or handwritten quote that nobody can prove later.
How to present prices professionally
Whether it is a quote, estimate, or proposal, the way you present prices affects the client's perception.
Always itemise materials and labour separately. A quote that says "Electrical work: 2,500 euros" raises suspicion. A quote that lists every material with quantity and unit price, plus detailed labour hours, conveys transparency. The total is the same, but the client feels they are paying a fair price.
Use specific references for materials. "24-module three-phase Hager consumer unit" is more professional than "consumer unit". The client can look up the price and confirm it is fair. That builds trust.
Always include a validity period. "This quote is valid for 15 days" creates urgency without pressure. The client knows that if they take too long to decide, the price may change. And you are protected if materials go up.
For estimates, use clear ranges: "between 800 and 1,200 euros" rather than "about 1,000 euros". The range conveys honesty, saying there are variables, while "about" gives the impression you are making up a number.
With Prummo, all of this is automatic. Dictate the materials and prices, the AI organises everything into professional lines, and the result is a quote that impresses any client. In 1 minute, without typing a single line.
Frequently asked questions
If a client accepts an estimate, can I charge the maximum?
An estimate indicates a range, not a fixed commitment. But in practice, if you always charge the maximum, you lose the client's trust. Charge what the job actually cost, within the indicated range.
Does a quote sent via WhatsApp have legal value?
In many jurisdictions, yes. A detailed quote sent via WhatsApp and accepted by the client constitutes an agreement. The messages serve as proof. Prummo records the acceptance digitally, which is even more secure.
Should I charge for the estimate or site visit?
It depends on the job. For small repairs, a free visit is common practice. For complex jobs requiring a detailed survey, it is reasonable to charge for the visit and deduct it from the quote if the client approves.