Privacy policy

Copperline, the operations platform for plumbing and electrical service companies.

Last updated 2 October 2026

Who we are

Copperline is software operated by Business Growth Insight Ltd (company number 15370177), registered at 260 South Lane, New Malden, London KT3 5RN.

You can reach us about anything on this page at privacy@usecopperline.com.

Two different relationships, and which one applies to you

This matters more than anything else on the page, because it decides who you should contact about your own data.

If you are a plumbing or electrical company using Copperline, we are the controller of your account: the people you add, their names, email addresses, phone numbers and roles, and how your company uses the product.

If you are a customer of one of those companies, we are not the controller of your data. The company you contacted is. They decide what to record about you and how long to keep it, and we process it on their instructions under a written agreement. If you want your data corrected or deleted, ask them first. If you cannot reach them, write to us at the address above and we will help you find them.

What we hold

For the companies that use Copperline:

For their customers and the work done for them:

WhatsApp

Companies using Copperline can connect their own WhatsApp Business account so that messages from their customers arrive in the product rather than only on somebody's phone. If you message a company on WhatsApp and they use Copperline, this is what happens.

We hold a credential from each company that authorises us to send and receive on their WhatsApp account. It is encrypted before it is stored and is used for nothing but that company's own messages.

WhatsApp is operated by Meta Platforms Ireland Limited, and their handling of your message is governed by their own privacy policy, not this one.

Why we are allowed to hold it

We do not sell personal data, we do not use it to train artificial intelligence models that serve anybody else, and we do not use it for advertising.

Where engineers are

Automated processing

Copperline uses machine learning to read what engineers say and write. It transcribes voice recordings, translates them, suggests which parts were used, drafts descriptions and fills in parts of certificates from what was said on site.

To do that it sends voice recordings, typed notes, photographs and the messages on a job to AI services: OpenAI reads and writes the words and transcribes recordings that are not in English, from Ireland and the United States, and Speechmatics transcribes English recordings in the United Kingdom. Neither uses what we send to train its models. Everybody signing in to the Copperline apps is told this and asked to agree before they start, and can read it again here.

Everything it produces is marked as machine-derived and can be corrected or undone by a person. Nothing it produces is a decision about you with legal effect. A certificate is only issued, and an invoice only sent, when somebody at the company has agreed to it.

Who else sees it

We use the following processors. Each is bound by a data processing agreement and may only act on our instructions.

WhoWhat they doWhere
SupabaseDatabase and file storageLondon, United Kingdom
RailwayHosting for the application serversEuropean Union
Google FirebaseSign-in, push notifications, and crash reports from the apps (Crashlytics)European Union and United States
Meta Platforms IrelandWhatsApp Business messagingIreland and United States
Twilio IrelandBusiness phone numbers, calls and call recordings, text messages, and WhatsApp on older connectionsIreland and United States
SpeechmaticsTranscribing voice recordingsUnited Kingdom
OpenAI IrelandReading and writing text, transcribing recordings not in English, and spoken repliesIreland and United States
ResendSending emailUnited States
Ideal PostcodesLooking up addresses from a postcodeUnited Kingdom
postcodes.ioPlacing a postcode on the mapUnited Kingdom
StripeTaking card paymentsIreland and United States

Where a processor operates outside the United Kingdom or the European Economic Area, the transfer is covered by the UK International Data Transfer Addendum or Standard Contractual Clauses.

Our databases and stored files are held in London. Voice recordings are sent to a transcription provider and returned as text; they are not used by those providers to improve their own models. Recordings in a language other than English are transcribed by OpenAI, which may process them in the United States.

How long we keep it

When a company stops using Copperline we send it a copy of its records if it wants one, and delete or return its data within thirty days of being asked. A company's only owner can ask for this from inside the Copperline One app.

Deleting your account

Anybody with a Copperline sign-in can delete their own account from inside the app: in the Copperline Field App under Me, then Your profile; in the Copperline One app and on the web under More. Their sign-in, name, email address, phone number, photograph and location are removed at once, and their phone stops reporting anything.

The jobs, notes, invoices, certificates and money they worked on belong to their company, which has to keep them, so those stay on the company's records under “Former team member”. See deleting your data for the details.

Keeping it separate, and keeping it safe

Every record in Copperline belongs to exactly one company, and that boundary is enforced by the database itself rather than only by the application. One company cannot see another's customers, jobs or messages.

Data is encrypted in transit and at rest. Credentials belonging to our customers are encrypted separately again. Access by our own staff is limited to what is needed to run the service and to fix faults.

Children

Copperline is a business product for people at work. It is not meant for anybody under sixteen, and we do not knowingly hold an account for a child.

Your rights

Under UK data protection law you can ask for a copy of your data, ask for it to be corrected, ask for it to be deleted, object to how it is used, or ask for it in a portable form.

If you are a customer of a company that uses Copperline, ask them, because they decide what happens to your records. If you are one of our own customers, write to privacy@usecopperline.com and we will answer within one month.

You can also complain to the Information Commissioner's Office at ico.org.uk, though we would rather you told us first so we can put it right.

Changes

If we change this policy we will update the date at the top, and we will tell the companies using Copperline before anything material takes effect.