How Much Does a Private Investigator Cost in the UK?

If you’re thinking about hiring a private investigator, one of the first questions you’ll likely have is: how much does it actually cost? The answer, as with many professional services, depends on several factors — including the nature of the investigation, how long it’s expected to take, and the techniques involved.

At B25 Private Investigation, we believe in full transparency. We know that seeking professional help often comes at a stressful or uncertain time in someone’s life, and we want our clients to feel completely informed and in control from the very start.

In this guide, we’ll walk you through everything you need to know about private investigator cost in the UK, what’s included in the fee, and how to find the right detective for your needs.

Typical Costs of Hiring a Private Investigator in the UK

Private investigation fees in the UK generally start at around £40–£100 per hour, depending on the type of service required. Some agencies, particularly those with specialist skills or high-profile experience, may charge more — especially for complex or time-sensitive work. Remember, you often get what you pay for and always ensure to check out an agency’s reputation by reading their reviews first. 

At B25, we aim to provide professional, ethical services at a fair and accessible price. We’ll always agree costs in advance and make sure you know exactly what you’re paying for.

Most cases also include reporting time, so you’ll receive a professional summary of the findings — often accompanied by photographic or video evidence if surveillance is involved.

What Affects the Cost of Hiring a Private Detective?

1. The Complexity of the Case

Some cases are straightforward — such as confirming someone’s whereabouts or conducting a short period of surveillance. Others may require extensive planning, specialist equipment, or travel to multiple locations. The more complex a case, the more time and resources it will require.

2. The Duration

Private investigators typically charge by the hour, so longer cases will naturally cost more. However, some agencies (including B25) may offer fixed-price packages for specific types of investigation — particularly vehicle tracking or one-day surveillance operations.

3. The Location

Investigations in rural or hard-to-access areas may involve additional travel time or expenses. If a case requires investigators to be deployed to more than one location — especially internationally — costs may also increase to cover transport and logistics.

4. The Techniques Involved

Using advanced tools like bug sweeping equipment, GPS trackers, or specialist surveillance technology may add to the overall cost. However, these tools are often vital for achieving accurate, actionable results.

5. The Experience of the Investigator

When it comes to private investigation, experience matters. Highly trained, professional investigators may charge more than generalists — but the quality of evidence gathered and the efficiency of the investigation often justifies the difference.

At B25, all our investigators come from military, intelligence, or policing backgrounds and are highly experienced in managing cases with professionalism, discretion, and care.

Are There Any Hidden Fees?

A reputable private investigation agency will never spring hidden charges on you. At B25, we offer complete transparency from the start. Once we understand your situation and goals, we’ll provide a clear breakdown of what’s involved — including time estimates, reporting deliverables, and any associated expenses.

You’ll always be able to make an informed decision before committing to any service.

Is Hiring a Private Investigator Worth the Cost?

This is, of course, a personal question, but for most of our clients, the answer is a resounding yes. When you hire a private detective, you’re paying for clarity, closure, and peace of mind. Whether it’s confirming a suspicion, protecting your business, or gathering information that could support a legal case, professional investigation can offer reassurance and resolution.

Examples of situations where our clients have found investigation services invaluable include:

  • Suspected infidelity or hidden relationships
  • Child custody and family court proceedings
  • Workplace theft or misconduct
  • Insurance fraud
  • Corporate espionage or data breaches
  • Harassment or stalking
  • Missing persons or tracing individuals
  • Bug sweeping to ensure privacy at home or work

Why Choose B25 Private Investigation?

With offices across Bristol, Swindon, Gloucester, Exeter, and Plymouth, B25 offers a wide-reaching, locally informed network of investigators. We combine years of operational experience with the latest tools and techniques — always delivered with integrity, discretion, and professionalism.

We’re also proud to be an inclusive agency, offering male and female investigators and treating each case with the sensitivity it deserves. From the first call to the final report, your security and satisfaction are our top priorities.

Do You Want To Hire a Private Detective in the UK?

If you’re considering whether to hire a private detective in the UK, the best first step is a confidential, no-obligation consultation. We’ll listen to your concerns, assess the scope of your case, and provide a clear, tailored plan that meets your objectives.

Contact B25 Private Investigation today to speak to a member of our expert team — and take the first step towards getting the answers you need.