Legal

Terms & Conditions

Last updated: June 2026

1. About these terms

These terms govern your use of the products and services provided by ZESTEC-Services Ltd ("we", "us", "our"), a company registered in England & Wales (company no. 16566434), registered office 20 Wenlock Road, London, England, N1 7GU.

By buying a licence, using one of our tools, or engaging us for a piece of work, you agree to these terms. If you are acting for a business, you confirm you have authority to agree on its behalf. Questions before you commit: info@zestec-services.com.

2. What we provide

ZESTEC-Services provides two things:

• Software tools — browser-based tools you licence and use yourself, such as BMEcat Preview. This is our main business and is covered by Part A below.
• Occasional technical consultancy — electrical, renewables and product-data work carried out directly for a client from time to time, under a separate written quotation. This is covered by Part B.

The common sections at the end apply to both.

3. The tools

Our tools are checking and productivity aids. For example, BMEcat Preview reads BMEcat files and checks them against ETIM to help you spot problems before submission. A tool does not guarantee that a file, design or output will be accepted by any third party (such as a wholesaler or platform), whose own systems and requirements are outside our control.

4. Licence

• On purchase you receive a licence key granting you the right to use the tool for the licence period (typically a free trial followed by an annual licence, unless stated otherwise at checkout).
• Your licence is for your own or your business's use. You may not resell, share, sublicense or publish your licence key.
• We may validate your key from time to time to confirm it is active. Misuse or sharing of a key may result in it being disabled.

5. Free trial

Where a free trial is offered, it gives you full access for the trial period. At the end of the trial, access continues only if you hold a valid paid licence. We will not take payment without your action unless that is clearly stated at checkout.

6. Payment

Payments for our tools are processed by Lemon Squeezy, who act as the merchant of record. Their checkout terms and tax handling apply to the transaction, and they are responsible for collecting and remitting any applicable VAT or sales tax based on your location. Prices are shown at checkout.

7. Refunds

Because a free trial is offered before purchase, we generally do not offer refunds once a paid licence has been issued. If something has genuinely gone wrong, contact info@zestec-services.com and we will deal with it fairly. Your statutory rights that cannot be excluded are unaffected.

8. Your files and data

How we handle the limited personal data we do process (such as your licence key and purchase information) is set out in our Privacy Policy.

9. Acceptable use

You agree not to attempt to circumvent the licensing, reverse-engineer a tool to defeat its protections, or use it unlawfully. We may withdraw access for serious or repeated breaches.

10. Availability

We aim to keep our tools and the licence-check service available, but we do not guarantee uninterrupted access. Tools are provided "as is" and "as available", and we may update, change or discontinue features.

11. Scope of consultancy

From time to time we carry out technical consultancy directly for a client — for example electrical and renewables design (solar PV, BESS, EV charging, general AC electrical) or product-data and standards work (ETIM, BMEcat, PIM). Any such engagement is governed by a separate written quotation or contract of sale that sets out the specific scope, deliverables, fees and timescales. Those specifics take precedence over these general terms for that engagement.

Where relevant, consultancy is carried out with regard to applicable standards, which may include BS 7671, MCS standards, DNO connection standards (G98/G99/G100), and relevant British and IEC standards. The applicable standards for a given piece of work are confirmed in the quotation.

12. Consultancy fees and payment

Consultancy fees are as set out in the relevant quotation. Unless agreed otherwise in writing, fees are payable up front or in agreed stages. We do not begin chargeable work before the agreed payment or deposit has been received.

13. Consultancy deliverables and advice

Consultancy deliverables (reports, designs, calculations, specifications and similar) are advisory. We are a design and advisory provider, not an installer. Responsibility for installation, for obtaining any required approvals or certificates, and for final compliance sign-off on site rests with the client and its appointed installer, unless expressly agreed otherwise in the quotation.

14. Intellectual property

We retain all intellectual property rights in our tools, software, methods and materials. A licence or engagement grants you the right to use the relevant output for its intended purpose; it does not transfer ownership of our underlying tools or know-how. Rights in bespoke consultancy deliverables are as set out in the relevant quotation.

15. Liability

To the fullest extent permitted by law, we are not liable for indirect or consequential loss, or for loss arising from: a file, design or output being rejected or not accepted by a third party; your reliance on a tool's output without your own checks; or data you did not keep a backup of. Nothing in these terms limits liability that cannot be limited by law (including for death or personal injury caused by negligence, or for fraud). Our total liability to you in connection with any tool licence or consultancy engagement is limited to the amount you paid us for that licence or engagement in the 12 months before the claim.

16. Governing law

These terms are governed by the law of England and Wales, and the courts of England and Wales have exclusive jurisdiction.

17. Changes

We may update these terms from time to time. The current version is always the one published here, with the date shown above.