Finding clarity in difficult times
Relationship Investigations
When trust breaks down in a relationship, the uncertainty can be overwhelming. We provide discreet, professional investigation services that give you the facts you need to make informed decisions about your future.
What we do
Relationship Investigations explained
We investigate concerns about fidelity, cohabitation, hidden assets and partner behaviour. Our approach is sensitive, non-judgemental and focused on establishing relevant facts. Reports are prepared as clear factual records; a solicitor can advise whether particular evidence is relevant and admissible in specific proceedings.
- Discreet surveillance with HD video and photographic evidence
- Factual reports prepared for review by your solicitor
- Background checks on new partners or online matches
- Cohabitation evidence for maintenance variation applications
- Sensitive, non-judgemental support from experienced investigators
Our specialist services
Explore our relationship investigations
Select a service below to learn more about how we can help with your specific situation.
Catch A Cheating Partner
Private investigator support for infidelity concerns, with discreet surveillance and factual reporting. From £295.
See infidelity investigation options about Catch A Cheating PartnerDivorce Investigations
Lawfully gathered evidence and factual reporting for review in divorce and financial proceedings.
Explore divorce investigation support about Divorce InvestigationsProof Of Cohabitation
Verify living arrangements for legal, financial, or personal reasons.
Prove cohabitation about Proof Of CohabitationPre Marital Investigations
Background and lifestyle checks before you commit to marriage.
Get pre-marriage check details about Pre Marital InvestigationsOnline Dating Checks
Verify the identity and intentions of someone you have met online.
Get dating verification details about Online Dating ChecksDating Scams
Identify romance fraud and recover from online dating deception.
Get romance fraud help details about Dating ScamsArranged Marriage Investigations
Due diligence and background checks for arranged marriages.
Get arranged marriage check details about Arranged Marriage InvestigationsEwhoring Investigations
Investigate online sextortion, blackmail, and intimate image abuse.
Get sextortion investigation details about Ewhoring InvestigationsHow we help you
Relationship situations we investigate
Every case is different, but these are the most common reasons people come to us for relationship investigations.
Suspected infidelity
Changes in behaviour, unexplained absences, a guarded phone. Planned surveillance can test a defined concern and provide a factual account of what was observed.
Divorce evidence
Where a lawful investigation is appropriate, we gather relevant facts discreetly and prepare a clear report for review by your solicitor.
Cohabitation checks
Your former partner claims to live alone but you believe they are cohabiting with a new partner. Evidence of cohabitation can affect your financial obligations.
Online dating verification
You have met someone online and want to know they are genuine before meeting in person or deepening the relationship. We verify their identity and background.
Child welfare concerns
You are worried about the environment your children are in during contact visits. We observe and document conditions discreetly.
Pre-marital checks
Before making a lifelong commitment, lawful background enquiries can test identity, previous marriages, business interests and other relevant claims.
Our process
How a relationship investigation works
We keep you informed at every stage. No surprises, no jargon, no pressure.
Confidential conversation
You speak with an experienced investigator who will listen without judgement. Tell us what you have noticed and what concerns you. There is no obligation to proceed.
Tailored plan
We design an investigation approach specific to your situation. You agree the scope, methods and costs before anything starts.
Discreet investigation
Our team gathers evidence through surveillance, background checks or other appropriate methods. You receive progress updates throughout.
Clear answers
You receive a professional report containing the evidence gathered and any limits affecting the findings. It can be supplied to your authorised legal adviser where required.
Why choose UKPI
Why choose UKPI for relationship investigations
Sensitive, human approach
We understand this is one of the hardest calls you will make. Our team is trained to handle personal cases with genuine empathy and zero judgement.
Agreed scope and timing
The proposed method, likely timescale and cost are set out before work begins. If circumstances change, we explain the choice before further work is authorised.
Clear factual reporting
Reports separate what was observed from interpretation and record relevant dates, times and supporting material. A court or tribunal decides whether evidence is admitted.
Confidential handling
We agree a safe way to communicate and restrict case information to those involved in the instruction, subject to legal obligations.
Female investigators available
If you would feel more comfortable speaking with a female investigator, we are happy to arrange this.
Transparent pricing
The infidelity package starts from £295. Other work is quoted against the agreed method, time, team size, travel and reporting requirements.
Transparency
Our professional standards
Our relationship investigations are planned around a lawful purpose, proportionate methods, and clear factual reporting from the outset.
- We gather evidence lawfully, without entrapment or staged encounters.
- We protect privacy and never hack phones, emails, or accounts.
- We investigate facts; counsellors and solicitors provide specialist advice.
- We report evidence honestly without promising outcomes or fabricating material.
- We conduct surveillance within applicable privacy and investigatory law.
Real outcomes
Relationship investigation case examples
All names and identifying details have been changed to protect client confidentiality.
The overnight trips
The challenge
A husband had started taking regular overnight "business trips" that could not be verified through his employer. His wife was consumed by doubt.
Our approach
Two nights of surveillance confirmed that the trips were not business-related. Photographic evidence documented his movements and meetings.
The dating app discovery
The challenge
A woman discovered her partner of three years was active on multiple dating apps. He denied it, claiming his account must have been hacked.
Our approach
Digital investigation confirmed active, regular use of the apps with verified logins from his phone. A surveillance operation documented a meeting arranged through the app.
The cohabitation dispute
The challenge
A man paying £2,200 monthly maintenance believed his former wife was cohabiting with her new partner but she denied it in court.
Our approach
Three weeks of documented observation showed the partner arriving six evenings a week, leaving each morning, receiving deliveries and keeping a vehicle at the property.
Transparent pricing
Relationship investigation costs
We believe in honest pricing. You will receive a clear, fixed-fee quote before any work begins.
From £295
The infidelity package starts at £295 for one four-hour surveillance session. Other relationship investigations are quoted against the agreed method, time, team size, travel and reporting requirements. You receive the scope and price before work begins.
Factors affecting cost
- Type of investigation (surveillance, background, digital)
- Number and length of surveillance sessions
- Whether vehicle tracking is included
- Complexity of the situation
- Reporting and evidence requirements
Common questions
Frequently asked questions about relationship investigations
The work is planned discreetly and contact arrangements are agreed with you. No responsible investigator can guarantee that covert work will never be noticed, but the plan is designed to reduce unnecessary contact and risk.
Availability depends on the required method, location and timing. Urgent work may be possible, but the start time is confirmed with you before the instruction is accepted.
Reports, photographs and video can be prepared for potential use in legal proceedings and supplied to your authorised solicitor. Whether material is admitted, and the weight given to it, are decisions for the relevant court or tribunal.
A result that does not support the concern is still useful. The report records what was observed during the agreed work and any limits affecting the findings. You pay only for the work that was authorised and completed.
Yes. If you would prefer to speak with or be supported by a female investigator, we can arrange this. Just let us know when you call.
Yes. We understand that personal investigations can be an unexpected expense. We offer staged payment options for cases over £500.
Absolutely. Our initial consultation is free, confidential and without obligation. Many people call just to talk through their situation and understand their options.
Get in touch
Talk to us about relationship investigations
You do not need all the answers before you call. Tell us what is happening and we will explain your options. Every conversation is completely confidential.
- Free, no-obligation consultation
- Response within 2 hours
- 100% confidential
- Available 24/7: 0800 043 1754
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You do not have to figure this out alone
A confidential conversation can bring clarity and control. Call us today or request a free consultation online.
- Confidential by default
- Accredited and insured
- Evidence prepared for legal review
- Est. 1997