Terms & Conditions


Welcome to Sustonica S.L., a sustainability certification service for vacation rental homes. By visiting our site and/or purchasing our certification service, you engage in our “Service” and agree to be bound by the following terms and conditions (“Terms and Conditions”, “Terms”).

These Terms include those additional terms and conditions and policies referenced herein and/or available by hyperlink. These Terms and Conditions apply to all users of the site, including without limitation, users who are browsers, customers, and/or contributors of content.

By accessing or using our Service, you acknowledge that you have read, understood, and agree to be bound by these Terms and Conditions. If you do not agree to these Terms and Conditions, please do not use our Service.


Sustonica S.L. offers a sustainability certification for vacation rental homes. To achieve certification, properties must meet certain environmental and social standards as determined by Sustonica S.L.

By purchasing certification, the property owner or managers agrees to these terms and conditions and commits to maintaining the standards required for certification throughout the validity period.

The Sustonica standard is subject to change and we reserve the right to make updates or revisions to the standard at any time without notice.


Sustonica S.L. will validate rental homes via a video call. This video call will be recorded for quality control and training purposes.


In order to ensure compliance with the certification standards, property owners may be required to provide documentation such as proof of address, electricity bills, and third-party provider information. Failure to provide this documentation may result in delayed or denied certification.


Sustonica S.L. respects the privacy rights of its customers and is compliant with the General Data Protection Regulation (GDPR). All information shared by clients will be kept confidential and will not be shared with any third parties without the explicit consent of the client. We assure that all the provided information will be used only for the certification process. Our privacy policy can be found on our website.


The pricing for the certification service includes a single video call for validation, a digital certification document and badge valid for 1 year, stored on the blockchain and available online for anyone to check (via our accreditation software provider Accredible).

Prices for certification are subject to change and will be communicated to the property owner or manager prior to certification.

Payment for the Sustonica certification service is due in full prior to the video call validation and is non-refundable. Payment for certification must be made via credit card through Stripe.

If the rental property does not meet the certification standard, property owners are encouraged to make necessary changes and schedule another video call for validation when ready. Please note that any additional video calls for validation will be subject to an additional fee and are also non-refundable.

The certification is valid for one year from the date of certification. If a rental property achieves certification on or after June 1st of any given year, they will be required to pay for a full year plus the equivalent of the remaining months.


We reserve the right to refuse any order placed with us at any time and for any reason, at our sole discretion. This includes, but is not limited to, orders that we believe to be in violation of our terms and conditions, or orders that we believe to be fraudulent or in violation of the law. If we refuse an order, we will make all reasonable efforts to notify you of the reason for our refusal and to offer a resolution.

Sustonica S.L. reserves the right to discontinue the certification service at any time and for any reason, without notice. If we discontinue the service, we will not be liable to you or any third party for any damages or compensation resulting from the discontinuation of the service.


We reserve the right, at our sole discretion, to update, change or replace any part of these Terms and Conditions at any time. It is the responsibility of the user to check these terms and conditions periodically for changes. Your continued use of or access to the website following the posting of any changes to these terms and conditions constitute acceptance of those changes. If any part of these Terms and Conditions is deemed to be invalid, void or unenforceable, that part will be deemed severable and will not affect the validity and enforceability of any remaining provisions.


Questions about the Terms and Conditions should be sent to us by letter to the following address:

Sustonica S.L.
Calle Girona 133, 2.2,
08037 Barcelona, Spain.
Reg. N#: ES-B72777139

email: info@sustonica.com