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The energy one stop shop — active across Belgium
Legal information

Privacy policy

How we collect, use and protect your personal data, and what your rights are. Select the document you wish to consult.

Last updated: 16 June 2026 GDPR compliant

Data controller

The controller of the personal data collected on this website is the company wendows, whose registered office and contact details appear in the legal notice. For any question relating to your data, you may write to us at the address indicated at the bottom of the page.

Data collected

We collect the data you provide via our quote and contact forms: first and last name, contact details (e-mail, phone), location of the property (postcode, town) and a description of your project.

Browsing data (IP address, pages viewed, device type) may be collected automatically via cookies and audience-measurement tools, under the conditions described in our cookie policy.

Purposes & legal bases

Your data is processed to respond to your requests, draw up quotes, carry out our services, ensure commercial follow-up and after-sales service, and comply with our legal obligations, in particular accounting ones.

The corresponding legal bases are: the performance of pre-contractual measures or of the contract, your consent (for marketing and non-essential cookies), our legitimate interest in developing our business, and compliance with our legal obligations.

Recipients of the data

Your data is intended for the wendows teams and, where applicable, for our technical processors (hosting, customer-relationship management tools) acting on our instructions and in compliance with the GDPR. It is neither sold nor transferred to third parties for commercial purposes.

Retention period

Prospect data is kept for up to three years after the last contact. Customer data is kept for the duration of the contractual relationship, then archived for the period required by our legal obligations (in particular ten years for accounting records), before being deleted.

Your rights

In accordance with the General Data Protection Regulation (GDPR) and Belgian law, you have a right of access, rectification, erasure, restriction, objection and portability of your data, as well as the right to withdraw your consent at any time.

To exercise these rights, contact us at the address below. Proof of identity may be requested; we respond within one month.

Cookies

This website uses cookies to ensure its operation, measure its audience and, where applicable, personalise content. Details of the cookies and the management of your consent are described in our dedicated cookie policy.

Contact & complaint

For any question relating to your data, write to wendows. If you consider that the processing of your data is not compliant, you have the right to lodge a complaint with the Data Protection Authority (APD/GBA), Rue de la Presse 35, 1000 Brussels — contact@apd-gba.be.

Exercise your rights
By e-mail: info@wendows.be · By phone: 0800 00 000