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Privacy policy
Last updated 21 September 2026. How OneCallUK Ltd collects, uses and protects your personal information under UK GDPR and the Data Protection Act 2018.
1. Who we are
OneCallUK Ltd, operated by Hamiltonn Ltd, provides residential and commercial construction, refurbishment, maintenance and property services. We are the data controller for personal information collected through onecalluk.com.
Contact: OneCallUK Ltd, 1, 117 Station Rd, Edgware HA8 7JG. Email info@onecalluk.com. Phone 020 3411 1104 or 07398 389964.
2. Information we collect
We only collect what we need to answer you and to carry out work for you.
- Details you give us: name, email address, phone number, property address, a description of your project and any photos or plans you attach.
- Details needed to deliver a job: site information, scheduling, invoices and payment records.
- Technical data: our web server keeps standard access logs, including IP address, browser type and pages requested, for security and fault-finding.
- Information from third parties acting for you, such as a landlord, managing agent or estate agent.
3. How we use it
- To respond to enquiries and prepare estimates.
- To plan, deliver and guarantee the work you ask us to do.
- To issue invoices and keep the records the law requires.
- To keep our website and business secure and to prevent fraud.
- To send offers and news, only if you have signed up for them.
4. Our lawful bases
- Contract: to provide the services you request, or to take steps before a contract.
- Legitimate interests: running our business, customer service and security.
- Legal obligation: tax, health and safety and regulatory record keeping.
- Consent: marketing emails. You can withdraw consent at any time.
5. Who we share it with
We never sell personal data. We share it only where needed with:
- Trusted tradespeople, engineers and suppliers working on your project.
- Hamiltonn Ltd, which operates OneCallUK Ltd.
- IT, email and website hosting providers.
- Payment providers and professional advisers such as accountants and solicitors.
- Regulators or authorities where the law requires it.
6. International transfers
If a provider processes data outside the UK, we make sure appropriate safeguards are in place, such as UK-approved standard contractual clauses.
7. How long we keep it
- Project and service records: 6 years.
- Financial records: 6 years.
- Enquiries that do not become a project: 12 months.
- Marketing sign-ups: until you unsubscribe.
8. Your rights
Under UK GDPR you can ask us to give you a copy of your data, correct it, delete it, restrict or stop processing it, or move it to another provider. You can also withdraw consent at any time. To use any of these rights, email info@onecalluk.com.
If you are unhappy with how we handle your data you can complain to the Information Commissioner’s Office at ico.org.uk.
9. How we protect it
Enquiries are sent over an encrypted connection and stored on secured UK-managed servers with restricted access. Only staff and contractors who need your details to do their job can see them.
10. Cookies
This website does not set advertising or analytics cookies and does not load third-party trackers. Fonts, images and scripts are served from our own server. If that changes we will update this page and ask for your consent first.
11. Links to other sites
Our site links to external services such as WhatsApp, Google Maps, Facebook, Instagram and YouTube. Those sites have their own privacy policies and we are not responsible for their content.
12. Changes to this policy
We may update this policy from time to time. The latest version will always be on this page with the date shown above.