Matrimonial InvestigationS

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over 20 years of experience

One Person Hiding Something from Another

Our Matrimonial & Relationship Investigators have over 20 years of experience. Contact us for a free consultation. We have private investigators across the UK. We understand how distressing it is to be in the dark about your marriage. Private Investigations UK offers matrimonial investigation services to get you the answers that you deserve. If you want information on pre-marital investigations for you or a family member, please click here.

You might be suspicious that your spouse is being unfaithful or that they’re hiding assets from you to prepare for a divorce. You might just be confused about an unexplained change in their behaviour. 

At the bottom of every matrimonial investigation, there is one person hiding something from the other. Hire our private investigation service to find out what that is.

It can be tough to ask us to investigate your husband or wife. We want to make sure you are as comfortable as possible throughout the process. We work with a team of both male and female matrimonial & relationship investigators and offer you a choice based on your preference. We are non-judgmental, and we will treat you with compassion and respect, whatever the outcome.

How to Tell If Your Husband or Wife Is Having an Affair

Unexplained Changes in Behaviour

If your husband or wife is behaving strangely, it could signify that they are having an affair. Someone having an affair might start spending time away from home, lose interest in your sex life, or take a lot of secretive phone calls. For more information on the tell-tale signs, please look at our expert private investigator for cheating & marriage detective’s Common Signs of Cheating.

Usually, we find unexplained changes in behaviour go together with a communication breakdown. If you have spotted some signs of cheating, you might not feel able to confront your spouse without any proof.

Private Investigations UK can find out whether your husband or wife is unfaithful. Our matrimonial & relationship investigators conduct cheating partner surveillance, providing you with audio, video and photographic evidence of an affair that might have taken place. All our surveillance is safe, discreet and confidential.

Read more about our surveillance services.

Unexplained Behavioural Changes

Knowing Is Much Better Than Not Knowing

Although your spouse might be behaving strangely, it doesn’t necessarily mean that they’re having an affair. Whatever the explanation, you still have a right to find out what is going on.

We often find that one person in a marriage ‘stonewalls’ the other. This is a communication block that you cannot make better. When you try to confront them:


  1. Do they change the subject?
  2. Do they turn the conversation around on you?
  3. Do they ignore you completely?

Stonewalling can be incredibly frustrating and can leave you unsure of what to do. Our matrimonial & relationship investigators can find out what your spouse is hiding from you.

Signs To Look Out For:

Have You Noticed These Signs?

UK Marriage Investigator

Contact Us for Advice

Although it’s best to speak to a UK Matrimonial & Relationship Investigators to discuss signs of cheating, the most common signs we see are listed above. If you’ve noticed one or more, then it may be time to pick up the phone and call us for a friendly and informal consultation on 0333 300 8132 or 07730439156. We’re available 24 hours a day.

Your suspicions could be explained by something perfectly innocent, but it’s crucial that you find out the cause of your partner’s change in behaviour. Before you can confront your partner, it’s best to know all the facts. Sometimes, the only way to get the complete story is to hire the services of a qualified and experienced UK Matrimonial Investigator.

Financially Engineering the Exit

In-depth UK Background Searches

Your husband or wife might be about to blindside you with a divorce. Look out for these red flags:

  • Have they started moving large amounts of money out of your joint accounts?
  • Have they been asking you to sign mysterious documents?

We call this ‘financially engineering the exit.’ This involves one partner hiding more than their share of assets in preparation for a divorce. This kind of behaviour is illegal, unfair, and can leave you burdened with serious debts in extreme cases.

If you think your partner is doing this, it is really important that you get evidence. We have perfected asset tracing strategies over the past 20 years. We can help you ensure that you get everything you are entitled to in the divorce.

Contact us for a free consultation with one of our matrimonial & relationship investigators.

Sham Marriages

We Understand Your Needs

The Home Office defines a sham marriage as: “[a]marriage or civil partnership contracted for immigration advantage by a couple who are not in a genuine relationship.” Unfortunately, it’s common for one person in the marriage to be completely unaware that it’s a sham. If your spouse has lost interest after the wedding, and you have reason to believe it’s a sham marriage, please contact us to see how we can help you to proving a sham marriage.

But infidelity is a complicated problem that can be brought on by a number of things, including a lack of emotional or physical intimacy in the union, discontent with the union, or a craving for novelty or excitement. It’s crucial to be open and honest with your partner if you think they could be having an affair. If necessary, you should also seek the counsel of a reputable specialist.


I would take the method of conducting surveillance on the alleged partner in order to acquire proof of infidelity. This would probably entail stalking the spouse, keeping tabs on their phone and computer usage, and perhaps deploying covert cameras or other surveillance tools to record their conduct. Other people who may know something about the partner’s conduct, such as friends, relatives, or coworkers, can be used by Relationship Investigator to obtain information. This surveillance would have the aim of recording any unusual behavior or actions that would point to adultery.


It is also very important to keep in mind that the finding of proof of infidelity does not necessarily mean the end of the relationship immediately after it has been uncovered. Many married couples are able to get past cheating and reestablish trust in their relationship with the assistance of a professional therapist or counselor. Additionally, it is essential for the client to be prepared for the outcomes of the surveillance, regardless of whether those outcomes will be positive or negative. They need to be ready to deal not just with the issues that have been brewing in the relationship for some time, but also with the emotional and psychological repercussions of the evidence that has been gathered.

It’s crucial to weigh your available evidence and maintain composure if you have suspicions that your partner is being unfaithful. To communicate your concerns and allow them the chance to respond, you might wish to have an honest dialogue with your spouse. A professional counselor or therapist may be able to offer advice and support as you make your way through this trying situation, so it’s vital to take this into consideration. The best course of action will ultimately rely on your unique situation and relationship dynamics.


If you believe your partner is cheating on you, you may decide to employ a matrimonial investigator to acquire proof and details about their actions. A matrimonial investigator is a specialist with training and experience in carrying out surveillance and compiling data regarding infidelity and other marital problems. A specialist in acquiring information on infidelity or other marital problems is known as a matrimonial investigator. A matrimonial investigator may use several techniques, such as monitoring, background checks, and witness interviews to acquire proof if you believe your partner is being unfaithful. They might also examine social media activity and phone and computer records. When they have enough proof, they will write up a report and give it to you. It is crucial to remember that matrimonial investigators are frequently employed by private parties, and their results may be admissible in court.


Noting that engaging a matrimonial investigator is a serious decision that shouldn’t be taken lightly It’s also important to keep in mind that engaging an investigator can be expensive and may not always result in the solutions or closure you’re searching for. To make sure you are making the best choice for yourself and your relationship, it can be a good idea to speak with a therapist or counselor before choosing to employ a private Investigator for Cheating.

Over 20 years of experience


Our investigators & Detectives are highly trained and experienced in conducting infidelity investigations, both in the UK and overseas. Our infidelity investigators are highly trained and come with a wealth of knowledge obtained through years of experience. With male and female investigators & detectives available, we cater for all situations to establish the truth.


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.

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

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

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