Infidelity Investigations

We boast over 20 years of experience in intelligence gathering for clients all over the world.



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Extensive background investigations conducted globally. 

Do you suspect your partner may be having an affair? We can

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Infidelity Private Investigators in the UK

Nearly a quarter of married men admit being unfaithful

According to YouGov, nearly a quarter of married men in the UK admit to being unfaithful.

Infidelity and cheating can destroy a relationship, but so can making accusations without any proof. If you suspect your partner of infidelity, a private investigator can help you. Before you read on, we highly recommend you look at our Signs of a Cheating Partner.

If the signs are there, our experience is that there is at least a 90% chance that we can get proof. We’ve developed infidelity investigations techniques over the past 20 years. On this page, we’ll answer the most asked questions about our methods.

We offer a free 30-minute consultation to all our prospective clients. Contact us to speak with one of our experts.

Infidelity Investigations uncover the truth

Confrontation Gets You Nowhere

It’s generally not a good idea to attempt to confront your spouse without evidence. Anyone who’s willing to cheat on their spouse is probably also willing to lie about it. At the same time, nobody would admit to an affair that they’re not having. This means that you’ll have an argument and end up none-the-wiser.


By conducting an infidelity investigation, you’ll be able to present evidence to your partner that they can’t refute. If we don’t find anything, you’ll at least have peace of mind and spare yourselves an unnecessary argument.

Read More: When to Walk Away After Infidelity?

How an infidelity investigation can help you

Try to Act Normal

We encourage our clients to act as they normally do. It can be difficult to fight the urge to call your partner out, but it’s important that you do. Discretion is paramount when we conduct an investigation; your partner can’t know what is going on. If they find out we’re conducting an investigation, we may never be able to get evidence of cheating.

As challenging as it may be, you should act ignorant to your partner’s infidelity. Work hard not to change your behaviour around them, and make sure you don’t overcompensate for your hurt feelings with overly-friendly interactions. If you don’t think you can mask your upset, come up with some plausible explanations for your demeanour, like workplace stress or an argument with a friend.



John provided my company a brilliant service. Surveillance was needed to check if an employee was really off sick or not. We were provided with a very professional and fast service, and a very clear, detailed report. This helped the company to obtain all the evidence that we needed. I Will definitely be using John again. Thank you.


The service i received was brilliant. Very professional and discreet. I had a feeling that my partner was cheating on me and unfortunately it turned out i was right. John was very sympathetic and was very helpful with all his good advise. He helped me get through a very tough experience. I will always be very grateful. Thank you John.


I can well recommend these services John was very committed and finally got my results. Whenever you need advice or someone to listen this man is dedicated and advises the way to go. Thank you John. I.can well recommend this company.



Hiring a private investigator to expose an affair

Dicretion is Key

We do everything we can to maintain our perfect standards of discretion and confidentiality, so we’d hate for your infidelity investigations to be compromised by idle gossip. Because of this, we strongly advise that you keep your infidelity investigation to yourself. 


We don’t recommend telling a friend, even if you absolutely trust them. All it would take would be for them to tell one untrustworthy person. Likewise, don’t rely on a friend just because they live far away, or don’t have any mutual friends with you. There’s no way for you to know who they know. 


If you’re totally unable to keep the details of your investigation to yourself, tell someone bound by confidentiality, like a solicitor or a counsellor.

All You Need To Know About Background Infidelity


Married couples and people involved in exclusive relationships are most likely to use our services.

Most people who come to us have already noticed an unexplained change in their partner’s behaviour. A gut feeling isn’t usually enough to go off in the long term. The best way to know for sure is to hire an investigator.
There are specific signs we ask you to look out for before you ask for our help. Please click here for more information.

The cost depends on the case, so we can’t offer you an accurate price unless we know the whole story. Our services are priced at an hourly rate, plus any extra expenses.

Please don’t hesitate to contact us for a free, no-commitment consultation, including a quote for the job.


We can find out where your partner is going and with who. We can trace people and conduct extensive background checks to find out as much about them as possible. Once we gather enough evidence to make an informed decision, we’ll present it to you in the final report.


We operate a global network of private detectives. We can guarantee private investigation services wherever you are in the UK and offer international services on an individual basis.

Please contact us for more information.


The vast majority of our infidelity investigations use covert surveillance. This type of surveillance involves physically following the partner who is cheating and recording video evidence.

However, we’re seeing a significant increase in digital infidelity or “online-only” affairs in the post-pandemic age. No physical contact has occurred, but someone is embroiled in a severe emotional affair with someone through social media.

Our investigators are technically skilled, with backgrounds in digital forensics. Provided it’s legal and GDPR compliant, we’d be happy to conduct a digital investigation into your partner.


Most private detectives already have experience in public sector investigations. Our agents have backgrounds in government intelligence and the armed forces.



Is your husband or wife behaving strangely? PI UK can help.

We’ve spent the past 20 years perfecting our surveillance techniques. Find out how surveillance can help you.

We believe a successful marriage begins with an investigation. Make sure you know who you’re welcoming into your family.

PI UK’s relationship expert has put together a list of red flags to look out for in your relationship.

Divorces are always unpleasant, especially if things get messy. PI UK can help.

Our infidelity investigator answers every question you could have about looking into unfaithful partners.

Nobody wants to fight for the right to care for their child. Find out about how our services can help.

We’ve perfected our number tracing strategy. Find out who’s calling you with help from PI UK.

Hidden assets can be damaging for hundreds of different reasons. Read about PI UK’s asset searching services.

If you need to find out where someone lives, PI UK’s Address Finder can help. 

We specialise in uncovering the past. PI UK offers private background checks for businesses and individuals.

Due Diligence helps you to ensure that your company is safe when you make major decisions.

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