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Answers where it matters in London. Discretion guaranteed.

Discreet investigation services across Greater London with local expertise and national reach. Speak to a Case Manager and get a plan in hours, not weeks.

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Specialist services in London

Professional investigation services with proven results and complete discretion.

Bug Sweeping (TSCM)
Find hidden cameras, listening devices and GPS trackers in your home, office or vehicle

Bug Sweeping (TSCM)

From £5992-4 hours

Explore Bug Sweeping (TSCM)
Polygraph Testing
Get the truth with a confidential lie detector test

Polygraph Testing

From £5492-3 hours

Explore Polygraph Testing
Surveillance
Discreet observation when you need to know what is really happening

Surveillance

From £554-8 hours

Explore Surveillance
Background Checks
Find out who you are really dealing with before it is too late

Background Checks

From £2991-5 days

Explore Background Checks
Vehicle Tracking
Know exactly where a vehicle goes, day and night

Vehicle Tracking

From £3997-56 days

Explore Vehicle Tracking

LocalPI has been conducting professional investigations across London for over 25 years, serving clients from the financial districts of Canary Wharf to the residential streets of Richmond. Our team of experienced investigators knows this sprawling metropolis inside out - from the maze of alleyways around Borough Market to the corporate towers along the Thames, and everywhere in between. Operating effectively in London requires more than just good intentions. You need investigators who understand how the city works. We know which CCTV systems cover key routes between Westminster and the City. We understand traffic patterns that affect surveillance operations from Hampstead to Greenwich. Our team recognises the difference between conducting discreet inquiries in Mayfair versus Whitechapel - each area demands its own approach. This local expertise proves invaluable whether we're tracing assets hidden in offshore accounts managed from EC2, serving legal documents to elusive defendants across the capital's 32 boroughs, or conducting surveillance operations that might span from Heathrow to the Docklands in a single day. London's complexity is our advantage. Our investigators include former Metropolitan Police officers and military personnel who've worked these streets professionally for decades. We're registered with the Information Commissioner's Office for data protection compliance and hold full professional indemnity insurance. From our London base, we provide the complete range of investigation services. Corporate clients rely on us for background checks on potential employees and partners, while private individuals often need surveillance services to resolve personal matters. We conduct technical surveillance countermeasures for clients concerned about electronic eavesdropping, trace missing persons and hidden assets, and provide process serving across Greater London. Every case receives the same professional attention whether it involves a complex fraud investigation spanning multiple London boroughs or a straightforward background verification for a Knightsbridge business. Our rates start from £55 per hour for surveillance work, with background checks from £299 and process serving from £199. If you need professional investigation services in London, call 0800 294 8556 to discuss your requirements with our experienced team.

Why Choose LocalPI in London

Working with local investigators in London gives you advantages you simply can't get from a national call centre operation. Our team knows the capital inside out. We understand which areas need extra surveillance considerations, where parking restrictions affect operations, and how to work efficiently across London's complex transport network. When you need surveillance in Canary Wharf versus Camden Market, we know the operational differences that matter. You'll speak directly with qualified investigators, not sales staff. When you call 0800 294 8556, you're talking to someone who understands the technical aspects of your case. We explain what's realistic, what isn't, and give you honest timescales. Our case handlers maintain regular contact throughout investigations and provide updates when there's something meaningful to report. Our pricing structure is straightforward. Surveillance starts at £55 per hour. Background checks from £299. Process serving from £199. Bug sweeping from £599. These rates include VAT and our standard reporting. within Greater London, no surprise administration fees, and no inflated costs for weekend work that should be standard rate. We're ICO registered for data protection and carry full professional indemnity insurance. Our investigators come from police and military backgrounds, bringing over 25 years of combined experience to your case. We handle everything from matrimonial surveillance in residential areas like Wimbledon to complex commercial investigations in the City. What you won't get from us is unrealistic promises or guaranteed outcomes. Investigation work involves variables we can't control. What we can guarantee is professional service, clear communication, and experienced investigators who understand London's unique challenges. We'll tell you upfront if your case isn't viable rather than take your money for poor results.

Client Reviews in London

Real experiences from our London clients

4.7
2052 reviews
Filter by service:

Jessica T.

Outer London

Jul 2025

Background Check

Comprehensive Background Check Excellence

Fantastic background check service for our new business partner. The investigation was thorough, covering all necessary areas including financial history, criminal records, and professional references. Results were delivered ahead of schedule with clear, detailed documentation. Their diligent research revealed important information that influenced our decision. Professional service with excellent value for money. Will definitely use again for future business ventures.

2 people found this helpful

Jack J.

Inner London

Apr 2025

asset_tracing

Asset Tracing Success

Incredible asset tracing results that recovered significant hidden assets. The investigative team used advanced techniques to locate properties and accounts that had been concealed for years. Their international connections and database access proved invaluable in tracking down everything we needed. The detailed financial trail they uncovered was impressive and legally sound. Truly professional service that delivered remarkable outcomes.

8 people found this helpful

Henry A.

Verified

Inner London

Jun 2025

Fraud Investigation

Excellent Fraud Investigation Work

Outstanding fraud investigation services that exceeded my expectations. The investigators were meticulous in gathering evidence and uncovered financial irregularities that saved my company thousands of pounds. Their attention to detail and professional approach made the entire process smooth and stress-free. The final report was comprehensive and presented clearly for legal proceedings. Fantastic value for money and I will definitely use their services again.

6 people found this helpful

Katie H.

Verified

Outer London

Oct 2025

asset_tracing

Outstanding Asset Recovery Work

Brilliant service from start to finish! The investigators helped me trace hidden assets during my divorce proceedings with remarkable efficiency. Their expertise in financial investigations proved invaluable, and they uncovered several accounts and properties I never knew existed. The detailed reports they provided gave me the evidence I needed for court. Professional, discreet, and incredibly thorough - exactly what you want from a private investigation firm. Money well spent and results that exceeded my expectations completely.

2 people found this helpful

G.T.

Outer London

Apr 2025

Missing Person

Successfully Found Missing Person

Incredible service that helped reunite me with a long-lost family member. The missing person investigation was handled with sensitivity and professionalism. Their team used effective search methods and databases to locate someone after many years. Communication was excellent throughout, and they provided regular progress updates. The investigators showed genuine care for my situation and worked diligently until achieving a positive result. I'm extremely grateful for their dedication and expertise in missing person cases.

3 people found this helpful

David K.

Verified

Outer London

Feb 2025

polygraph

Professional Polygraph Testing Excellence

Exceptional polygraph examination service! The examiner was incredibly skilled and made the entire process comfortable and stress-free. Their modern facility in the area provided a perfect environment for accurate testing. The detailed pre-examination consultation helped clarify all questions and procedures. Results were delivered promptly with comprehensive analysis and clear explanations. The professionalism and accuracy exceeded all expectations. This company demonstrates why they're leaders in their field. Definitely the right choice for reliable polygraph testing services.

2 people found this helpful

Local Expertise in London

Operating across London's 32 boroughs for over 25 years has taught us that no two investigations are alike in this sprawling metropolis. From the financial towers of Canary Wharf to the residential streets of Croydon, each area presents unique challenges that require local knowledge and tactical flexibility. The City of London's maze of medieval streets and modern skyscrapers creates perfect cover for surveillance operations, but the dense CCTV network means we adapt our approach accordingly. In contrast, outer boroughs like Havering or Hillingdon offer different opportunities - suburban layouts provide excellent vantage points, though vehicle surveillance becomes more critical on these wider roads. London's transport network is both our greatest asset and biggest challenge. The Underground system allows subjects to disappear quickly - we know which stations have multiple exits and plan accordingly. Liverpool Street's seven different exit points require careful positioning, while smaller stations like Arnos Grove offer fewer escape routes. Our investigators understand peak travel patterns across different lines and adjust surveillance timing to blend with commuter flows. We recognise how London's diverse economy affects our casework. Corporate investigations in Shoreditch's tech cluster require different skills than matrimonial cases in leafy Richmond. The concentration of international businesses around King's Cross brings complex fraud cases involving multiple jurisdictions. Meanwhile, the creative industries around Soho generate intellectual property disputes requiring specialist knowledge. Housing patterns across London significantly impact our work. The mansion blocks of Kensington require different access strategies than the tower blocks of Tower Hamlets. We understand which residential areas have active neighbourhood watch schemes and adjust our surveillance methods to avoid unwanted attention. Our investigators know that Belgravia's embassy row brings heightened security awareness, while areas like Bermondsey's converted warehouses offer excellent observation points. The capital's 24-hour economy means we often work unsociable hours. Night-time surveillance in entertainment districts like Camden or Clapham requires understanding of local licensing laws and crowd patterns. We know which areas have late-night transport options and plan extraction routes accordingly. Our team includes former Metropolitan Police officers who understand London's geography intimately. This knowledge proves invaluable when conducting background checks - knowing which boroughs traditionally house specific communities helps us focus our research effectively. Whether tracking assets hidden in offshore company structures registered in the City or serving legal documents in social housing estates, our local expertise ensures thorough, efficient investigations tailored to London's unique character.

Investigation Services in London

After 25 years working investigations across London, we've handled virtually every type of case you can imagine. Here are the most common enquiries that come through our doors. Matrimonial investigations make up a significant portion of our London caseload. Often it's a spouse who's noticed changes in behaviour - working late in Canary Wharf when they never did before, unexplained trips to hotels in Kensington, or simply a gut feeling something isn't right. Our surveillance teams know every corner of the capital, from discrete observation points in Hampstead to tracking subjects through the busy streets around Liverpool Street Station. We document everything with timestamped photography and detailed reports that stand up in divorce proceedings. Employee verification has become essential for London businesses. We regularly conduct background checks on senior hires, particularly in the financial sector where one bad appointment can cost millions. Last month we uncovered fabricated qualifications for a CFO position in the City - the candidate claimed an MBA from London Business School they never attended. We also handle workplace investigations when companies suspect theft, fraud, or employees running competing businesses from company premises. Bug sweeping services are increasingly vital in London's competitive business environment. Corporate espionage isn't just for spy films - we regularly sweep boardrooms in Mayfair, law firms around Lincoln's Inn, and private residences in Belgravia. Our TSCM equipment detects everything from basic recording devices to sophisticated GPS trackers. One recent case involved a property developer who discovered competitors were monitoring their acquisition meetings through planted listening devices. Asset tracing becomes critical during high-value London divorces or when businesses need to recover debts. We've tracked hidden assets from offshore accounts linked to Chelsea properties to undisclosed business interests in Shoreditch startups. Our investigators know how to follow complex paper trails through Companies House records, land registry documents, and international banking networks. Process serving might sound straightforward, but serving legal documents in London requires local knowledge and persistence. We know which buildings have concierge services that accept documents, the best times to catch individuals at exclusive clubs in St James's, and how to locate people who've deliberately made themselves scarce around the capital. Missing persons enquiries range from teenagers who've disappeared from family homes in suburban areas to adults who've vanished owing substantial debts to London creditors. Each case requires different approaches - from checking CCTV footage around King's Cross Station to liaising with hostels in areas where vulnerable people congregate. Every investigation we conduct is handled by experienced ex-police and military personnel who understand both the legal requirements and the practical challenges of working in Britain's capital city. We're fully insured and data protection compliant, ensuring your case is handled professionally from start to finish.

Frequently Asked Questions

Common questions about our private investigation services and how we can help you in London.

Do you cover all of London and how quickly can you start?

We cover all London boroughs from the City to outer areas like Croydon and Barnet. Our investigators are based across the capital so we can typically begin surveillance or other services within 24-48 hours of instruction. For urgent matters in central London, we can often respond the same day.

What are your rates and do you require payment upfront?

Surveillance starts at £55 per hour with a minimum 4-hour booking. Background checks begin at £299 and process serving from £199. We require a deposit before starting work, with the balance due on completion for most services.

How do you protect my confidentiality?

We're ICO registered and bound by strict data protection laws. All communications are encrypted and case files are stored securely with access limited to your assigned investigator. We never discuss cases with third parties and can arrange meetings at neutral London locations if required.

Will your evidence stand up in court?

Yes, all our evidence is gathered using legal methods and documented to court standards. Our ex-police investigators understand what judges require and we regularly provide witness statements for family, civil and employment tribunals across London courts including the Royal Courts of Justice.

What qualifications do your London investigators have?

Our team includes former Metropolitan Police detectives and military intelligence personnel with decades of experience. All investigators are licensed We maintain full professional indemnity insurance and ongoing training.

How does a typical investigation work?

We start with a detailed briefing to understand your objectives and concerns. You'll receive regular updates throughout the investigation with preliminary findings where appropriate. Upon completion, you get a comprehensive written report with all evidence, photographs, and our professional assessment.

What if you don't find anything suspicious?

Sometimes investigations yield negative results, which can be just as valuable as positive findings. You'll still receive a full report documenting our methodology and findings. This provides you with factual information to make informed decisions and often brings clarity to difficult situations.

What hours do you work and can you operate at weekends?

We operate 24/7 including weekends and bank holidays, which is essential in London where many activities happen outside normal business hours. Evening and weekend surveillance often produces the best results. Our office is contactable during business hours on 0800 294 8556 with emergency contact available for active cases.