Westminster Detectives - Servicing Westminster and London for over 20 years

Westminster Detectives

  020 3124 1574

95% Success Rate. 100% Legal.

Westminster Detectives - the professional investigation company that delivers results and keeps you in the picture. Professional, efficient and discreet private investigations in 158 UK towns and cities, backed by an extensive UK network. Westminster Detectives serve Westminster and localities throughout London.

Our office is open until 8pm Monday to Sunday

  020 3124 1574

95% Success Rate. 100% Legal.

Westminster Detectives are the professional investigation company that delivers results and keeps you in the picture.

Open 9am - 8pm Mon to Sun


  • Listed in Your Local Yellow Pages
  • Members of the American Polygraph Association
  • Now Accepting All Popular Forms of Payment
  • Insured with HENSURE

  • 100% Confidentiality Guaranteed
  • APA Qualified Polygraph Examiners
  • Westminster's No.1 Detective Agency
  • Each Client Assigned a Case Manager
  • Excellent 1-2-1 Customer Service
  • Secure Online Portal
  • Best Rates Nationwide
  • Full UK Coverage
  • 157 Branches Nationwide
  • Established in 1999


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Contact Us Open 9am - 8pm Mon to Sun

020 3124 1574
FREEPHONE: 0800 294 8556
Free from UK landlines and mobiles
Chat Live with a Case Manager

Why Choose Westminster Detectives?

  • Case Management Team
    Westminster Detectives experienced management team and highly skilled private investigators ensure that your case is carried out professionally and efficiently.

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Westminster Detectives' Frequently Asked Questions

  • To hire your company is more expensive than some others that I have seen. Why is that?
  • How Much is it to Hire a PI?
  • What types of expenses will I be charged for?
  • What kinds of expenses will I be required to pay?
  • Why are you more expensive than some private investigation companies?

Nationwide Client Comments

  • Living in a rural area, it was important to have a private investigator who knew the local area and wouldn't stick out like a sore thumb! The surveillance they...
    Paul, Avon
  • I was pleasantly surprised to find Newcastle Detectives not only the most competitive in price, but second to none when it came to customer service. Top marks...
    Geoff, Newcastle
  • A first-rate service, with friendly staff and very competitive prices!
    Aaron, Peterhead
  • My company has hired Aylesbury Detectives a few times over the years to gather evidence for us, and they have worked discreetly at all times. Their...
    Mike, Buckingham
  • Hiring a private investigator is not something I would normally do, but I was in a situation that I simply couldn't resolve on my own. I needed evidence that...
    David, Bath

About Westminster

Westminster Detectives have been operating in Westminster and London for almost 20 years.

  • Westminster is the location of the Palace of Westminster, a UNESCO World Heritage Site which houses the Parliament of the United Kingdom.
  • Westminster is an area of central London, within the City of Westminster.
  • Westminster lies on the north bank of the River Thames, southwest of the City of London.
  • Westminster has a large concentration of London's historic and prestigious landmarks and visitor attractions.
  • Westminster name derives from the West Minster, or monastery church, west of the City of London's St Paul's.
  • Westminster has been the seat of the government of England for almost a thousand years.
  • Westminster is thus often used as a metonym for Parliament and the political community of the United Kingdom generally.
  • The historic core of Westminster is the former Thorney Island on which Westminster Abbey was built.
  • Westminster is still the centre of government, with Parliament now located in the Palace of Westminster.
  • Westminster has a substantial residential population.

Westminster Detectives

Professional, efficient and discreet private investigations in 158 UK cities, backed by an extensive UK network. Westminster Detectives serve Westminster and localities throughout London.

Based on north bank the River Thames , Westminster Detectives provide a confidential and professional Investigation, enquiry and research service to meet both private individuals and business needs.