Privacy policy

Last updated 4 October 2026

This policy is for builders and trades who use Tellux, and anyone who contacts us. Had a letter from a builder using Tellux? Read the privacy notice for homeowners, or stop letters to your address.

1. Who we are

Tellux is a trading name of Jack Jeffries. Email contact@tellux.co.uk.

We are the controller of the personal information described here. Questions about this policy, or about your information, go to the email above.

2. What we collect

  • Your account: name, email, business name, phone number, business address, website and password (stored only as a secure hash).
  • How you set Tellux up: your councils, the kinds of work you do, your morning email choice, your letterhead, logo and signature.
  • Your work in Tellux: the jobs you save or hide, your notes, the letters you write and send, and replies homeowners send you through your letters.
  • Payments: your plan, invoices, letter credit and top-ups. Card details are handled by Stripe and never reach us.
  • Security logs: our hosting provider records technical details such as IP address and browser for each request, to keep the service running and secure. We don't use analytics or advertising trackers.
  • Messages: anything you send us by email.

Tellux also holds information from public planning registers, such as addresses and, where councils publish them, applicants' names. That's covered in the notice for homeowners.

3. Why we use it, and our legal basis

  • To run your account and the service you signed up for, including the morning email if you turn it on, and posting letters if you ask us to. Legal basis: our contract with you.
  • To bill you and keep financial records. Legal basis: contract, and our legal duty to keep tax records.
  • To keep Tellux secure and stop abuse, including bot checks on sign-in and sign-up, rate limits and enforcing the opt-out list. Legal basis: our legitimate interest in a safe, lawful service.
  • To tell you about important changes to the service, these terms or this policy. Legal basis: contract and legitimate interests.

We don't send you marketing from other companies, and we don't sell your information.

4. Who we share it with

Only the providers we need to run Tellux, under contracts that limit what they can do with it:

ProviderWhat for
VercelHosting the website and running it
NeonOur database
StannpPrinting and posting letters, when you ask us to post them
StripeTaking payments
IONOSSending our emails
Cloudflare (Turnstile)Checking sign-ins and sign-ups are from people, not bots
OpenFreeMapMap pictures on job pages (your browser asks it for map tiles, so it sees your IP address)

Homeowners who reply to your letter see the business details printed on your letter and reply page. We may also share information if the law requires it.

5. Information leaving the UK

Some of these providers, including Vercel, Stripe and Cloudflare, are based in the US or may handle information there. When that happens we rely on the UK's data bridge with the US, or on the UK's approved contract clauses in the provider's data processing terms.

6. How long we keep it

  • Your account information stays while your account is open.
  • If you close your account, we delete your account, saved jobs, letters and settings.
  • Security logs are kept by our hosting provider for a short time and then deleted automatically.

7. Your rights

You can ask us for a copy of your information, to correct it, to delete it, to limit how we use it, or to move it to another service. You can also object to us using it on the basis of legitimate interests.

Email contact@tellux.co.uk. We'll reply within one month. If your request is complicated we may need up to two more months, and we'll tell you if so.

8. Cookies and browser storage

We only use what the site needs to work. There are no analytics, tracking or advertising cookies.

  • Sign-in cookies: keep you signed in and protect forms from forgery.
  • Settings saved in your browser: that you've seen the cookie notice, how far you've got with the guided tour, and whether you've closed the "add your logo" card.
  • Cloudflare Turnstile: runs on the sign-in and sign-up pages to check you're a person.

You can clear or block these in your browser settings, but you won't be able to sign in without the sign-in cookie.

9. Complaints

If you're unhappy with how we've handled your information, please tell us first at contact@tellux.co.uk and we'll put it right if we can. You can also complain to the Information Commissioner's Office at ico.org.uk or on 0303 123 1113.

10. Changes

If we change this policy in a way that matters, we'll tell you by email or in Tellux before it applies.