A signed quote legally binds both parties just like a contract. This document outlines the scope of work, the price, the deadlines, and the execution conditions. Securing a construction site therefore begins well before the first blow of the hammer, starting with a careful reading of the received proposals.
The following five points cover the technical checks to be carried out on each quote to avoid additional costs, defects, and disputes.
1. Check the actual validity of the ten-year insurance
Requesting a ten-year insurance certificate is a well-known reflex. The real issue lies in the details of the document. The certificate must be provided before the start of the work and attached to the quote and then to the invoice.
Three points deserve a line-by-line verification: the consistency between the exact name of the company and that on the certificate, the validity period covering the expected duration of the work, and especially the guaranteed activities. A ten-year insurance may very well exclude the specific nature of the work you are getting quoted.
A tiling specialist whose ten-year insurance only covers painting does not protect the project owner in case of damage. Find more work tips on Maison Créa to delve deeper into these checks.
For projects involving the structure, foundations, earthworks, or waterproofing, also consider the damage insurance. It must be taken out before the work begins. The quote should clearly identify whether the project falls within this scope.
2. Compare quotes on identical bases
Comparing three quotes is not just about looking at the total amount at the bottom of the page. A reliable quote details each item: supply, labor, quantities, and unit prices. Without this level of precision, the comparison is worthless.
A serious professional distinguishes materials by reference or technical characteristics. If a quote mentions “tiling” without specifying the type, size, or the glue’s weight, the line remains unverifiable.
Also pay attention to the VAT regime. Depending on the nature of the work and the age of the building, the applicable rate varies. Two quotes may show the same net amount and differ significantly in gross amounts. Check that each company applies the correct rate and explicitly mentions it.
- Require a precise description of materials (brand, reference, characteristics) for each line of the quote
- Verify that labor items are priced separately from supplies
- Compare gross amounts by checking the VAT rate applied to each category of work
3. Identify guarantees and insurance scope in the quote
Beyond the ten-year insurance, a renovation quote must mention the guarantee of perfect completion (one year after acceptance) and the two-year guarantee on removable equipment. These guarantees are not optional: they stem from the civil code.
A common trap is to confuse legal guarantees with commercial guarantees. A craftsman may offer a “satisfaction guarantee” that does not replace legal obligations. Read the general conditions attached to the quote to ensure that no clause limits or excludes these protections.
A quote obtained after home solicitation follows a specific regime. The client generally has fourteen days to withdraw, and the professional cannot normally receive any payment during the first seven days, except for exceptions related to urgent work expressly requested. The absence of a withdrawal form may extend this period.
4. Define a project scope and precise contractual deadlines
A quote that mentions “bathroom renovation work” without detailing the scope exposes you to disputes over what is included or not. Each service must be described with sufficient detail for a third party to understand exactly what will be done.
Deadlines must appear in the quote as firm dates or durations, not vague phrases like “about three weeks.” Without a written calendar commitment, no recourse is possible in case of prolonged delays.
Be sure to specify often-forgotten ancillary work:
- Protection of floors and furniture during the project
- Disposal of debris and end-of-site cleaning
- Connections to existing networks (water, electricity, drainage)
- Finishing touches (baseboards, joints, paint connections)
These items often represent a source of additional costs when they are not included in the initial quote. A craftsman who spontaneously integrates them into his proposal demonstrates his mastery of the project.
5. Check customer reviews and the reputation of the construction company
Online review platforms provide a first indication, but their reliability varies. Favor detailed feedback that describes a specific project (type of work, adherence to deadlines, management of unforeseen events) rather than generic ratings.
Requesting references from projects similar to yours remains the most reliable method. A professional confident in his work will agree to provide the contact details of former clients or photos of comparable achievements.
For energy renovations, the presence of the RGE logo on the quote is not enough. You must verify the company in the official France Rénov’ directory and check that its qualification exactly matches the planned work. An RGE certification in attic insulation does not cover the installation of a heat pump.
The intersection of customer reviews, certification verification, and the quality of the quote produces a sufficient set of indicators to rule out high-risk providers. A well-constructed quote, backed by a traceable and properly insured company, remains the best protection before starting the project.
