Passer au contenu principal

Privacy Policy

Last updated: March 14, 2026

1. Introduction

This Privacy Policy describes how Fourmi Un SAS, a French simplified joint-stock company, collects, uses, stores, and protects your personal data when you use the Hello Chantier platform, accessible at hellochantier.com. By using our platform, you acknowledge that you have read this policy and consent to the processing of your personal data as described herein. We are committed to respecting the privacy of our users and handling their data with the utmost care.

2. Data Controller

The data controller for your personal data is Fourmi Un SAS. For any questions regarding the protection of your data or to exercise your rights, you may contact us at the following address: communication@hellochantier.com. As the data controller, Fourmi Un SAS determines the purposes and means of processing your personal data, in accordance with the General Data Protection Regulation (GDPR) and French data protection law.

3. Data Collected

In the course of using the Hello Chantier platform, we collect the following categories of personal data: identification data (surname, first name, email address, phone number) when creating your account; professional data (company name, SIRET number, qualifications, service area) for construction professionals; project-related data (description of works, photos, documents, quotes, invoices) that you share on the platform; connection and browsing data (IP address, browser type, pages visited, timestamps) collected automatically during your use of the service; and payment data (processed securely by our service provider Stripe, without us having access to your complete banking information).

4. Processing Purposes

Your personal data is processed for the following purposes: creating and managing your user account; connecting homeowners with construction professionals; managing quotes, invoices, and project tracking; sending notifications related to your account activity (messages, project updates, alerts); sending marketing communications if you have consented to them; continuously improving our services and user experience; fraud prevention and platform security; and compliance with our legal and regulatory obligations.

5. Legal Basis for Processing

The processing of your personal data is based on the following legal grounds, in accordance with Article 6 of the GDPR: performance of the contract binding us when you use our services (account creation, project management, matchmaking); your consent, particularly for sending marketing communications and using non-essential cookies; our legitimate interest in improving our services, preventing fraud, and ensuring platform security; and compliance with our legal obligations, particularly regarding invoicing, taxation, and data retention.

6. Data Sharing

Your personal data may be shared with the following recipients: other platform users, as part of the matchmaking process (for example, a professional accesses a homeowner's project information and vice versa); our technical subcontractors who participate in the operation of the platform (hosting, email sending, payment processing); and competent authorities, when required by law. We never sell your personal data to third parties. Our subcontractors are contractually bound to process your data in accordance with the GDPR and only according to our instructions. Data is hosted within the European Union. In the event of data transfers outside the EU, we implement appropriate safeguards in accordance with the GDPR.

7. Data Retention

Your personal data is retained for the period necessary for the purposes for which it was collected: your account data is retained for the duration of your registration and deleted within 30 days following the deletion of your account; transaction-related data (quotes, invoices) is retained for 10 years in accordance with legal accounting obligations; connection data (logs) is retained for 12 months in accordance with applicable regulations; and cookies expire according to the durations specified in the dedicated section below.

8. Data Security

We implement appropriate technical and organizational measures to protect your personal data against unauthorized access, modification, disclosure, or destruction. These measures include encryption of data in transit (HTTPS/TLS) and at rest, strict access controls and secure authentication, regular backups, continuous infrastructure monitoring, and periodic security audits. Despite these measures, no data transmission or storage system can be guaranteed to be completely secure. In the event of a data breach likely to pose a risk to your rights and freedoms, we will inform you as soon as possible in accordance with our legal obligations.

9. Your Rights

In accordance with the GDPR and French data protection law, you have the following rights regarding your personal data: the right of access, which allows you to obtain confirmation that your data is being processed and to obtain a copy; the right to rectification, which allows you to request the correction of inaccurate or incomplete data; the right to erasure ("right to be forgotten"), which allows you to request the deletion of your data under certain conditions; the right to restriction of processing, which allows you to request the suspension of the processing of your data; the right to data portability, which allows you to receive your data in a structured and machine-readable format; the right to object, which allows you to object to the processing of your data on legitimate grounds; and the right to withdraw your consent at any time, without affecting the lawfulness of processing based on consent carried out before such withdrawal. You can exercise your right to data portability yourself, directly from your account: go to Settings → Account to download a copy of your personal data in a structured, machine-readable format (JSON). To exercise your other rights, send your request to communication@hellochantier.com. We are committed to responding to your request within one month. In the event of a dispute, you have the option to lodge a complaint with the Commission Nationale de l'Informatique et des Libertés (CNIL): www.cnil.fr.

10. Cookies

The Hello Chantier platform uses cookies and similar technologies to ensure its proper functioning and improve your experience. Strictly necessary cookies are essential for the operation of the site (authentication, security, language preferences) and cannot be disabled. Analytical cookies allow us to understand how users interact with the platform in order to improve its performance and usability. You can manage your cookie preferences at any time from your browser settings. Refusing certain cookies may limit access to certain features of the platform.

11. Protection of Minors

The Hello Chantier platform is intended for persons aged 18 and over. We do not knowingly collect personal data from minors. If we discover that data from a minor has been inadvertently collected, we will delete it as soon as possible. If you are a parent or legal guardian and believe that your child has provided us with personal data, please contact us at communication@hellochantier.com.

12. Changes to This Policy

We reserve the right to modify this Privacy Policy at any time, particularly to comply with changes in applicable regulations or to reflect changes in our practices. In the event of a substantial modification, you will be notified by email or by notification in the application at least 15 days before the new version takes effect. The date of the last update is indicated at the top of this page. Continued use of the platform after the effective date of the new policy constitutes acceptance thereof.

13. Contact Us

For any questions regarding this Privacy Policy, or to exercise your rights over your personal data, you may contact Fourmi Un SAS at the following address: communication@hellochantier.com. We are committed to responding to your requests within a reasonable timeframe. Our team is available Monday through Friday to answer all of your questions regarding the protection of your data on the Hello Chantier platform.