Grantham Detectives - Servicing Grantham and the East Midlands for over 20 years

Grantham Detectives

  01476 468 085

95% Success Rate. 100% Legal.

We provide professional, efficient and legal private investigation services.

Grantham Detectives offer affordable and discreet solutions for individuals, companies and public sector organisations. Backed by an extensive UK network, Grantham Detectives serve Grantham and localities throughout the East Midlands.

Grantham Detectives Case Manager waiting to take your call

Welcome to Grantham Detectives

Hello. I'm a Case Manager at Grantham Detectives.

Please browse our range of services and packages on this site.

Not sure how an investigation works? Don't worry. Just give us a call and one of our Case Managers will talk you through it step by step.

  01476 468 085

95% Success Rate. 100% Legal.

We provide professional, efficient and legal private investigation services.

Grantham Detectives offer affordable and discreet solutions for individuals, companies and public sector organisations. Backed by an extensive UK network, Grantham Detectives serve Grantham and localities throughout the East Midlands.

Open 7 days 9am - 8pm

Grantham Detectives Case Manager waiting to take your call

Welcome to Grantham Detectives

Hello. I'm a Case Manager at Grantham Detectives.

Please browse our range of services and packages on this site.

Not sure how an investigation works? Don't worry. Just give us a call and one of our Case Managers will talk you through it step by step.

Our office is open until 8pm Monday to Sunday.

  • 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
  • Grantham'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 7 days 9am - 8pm

01476 468 085
FREEPHONE: 0800 294 8556
Free from UK landlines and mobiles
Chat Live with a Case Manager

Why Choose Grantham Detectives?

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

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Grantham 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

  • 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
  • I was in a situation that I couldn't resolve without professional help. I felt that because my situation was so emotional, and to do with adultery, I wanted a...
    Ailish, Aberdeen
  • 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 Grantham

Grantham Detectives have been operating in Grantham and the East Midlands for almost 20 years.

  • Grantham is within short walking distance of an ancient Roman road, and was the scene of Oliver Cromwell's first advantage over Royalists during the English Civil War at Gonerby Moor.
  • Grantham is a market town within the South Kesteven district of Lincolnshire, England.
  • Grantham bestrides the East Coast Main Line railway (London-Edinburgh), the historic A1 main north-south road, and the River Witham.
  • Grantham is located approximately 26 miles (42 km) south of the city of Lincoln, and approximately 24 miles (39 km) east of Nottingham.
  • Grantham's population at the 2001 census was 34,592 with around 18,000 households, excluding the adjacent village of Great Gonerby.
  • With the housing estates in Londonthorpe and Harrowby Without (around a population of 4,500), this figure would be around 42,000.
  • Grantham is best known as the birthplace of former prime minister Margaret Thatcher, and the place where Isaac Newton went to school.
  • Grantham is also notable for having the first female police officers in the United Kingdom, in 1914.
  • Grantham produced the first running diesel engine in 1892, and the UK's first tractor in 1896.
  • Grantham's town boundary crosses the A1 to the west at the Dysart Road bridge.
  • Grantham crosses the B1174 at Gonerby Hill.
  • All of the Manthorpe estate is aprt of Grantham, but the (smaller) Manthorpe village and the church is part of Belton and Manthorpe.
  • Grantham passes to the west of Harrowby Hall and over Hall's Hill.
  • Grantham crosses the A52 at the start of Somerby Hill.
  • Grantham borders Little Ponton, and crosses the B1174 at the southern end of the Spittlegate Level Industrial Estate
  • Grantham Museum is on St Peter's Hill.
  • Grantham has the A1 main road from London to Edinburgh running past it (the town was bypassed in 1962).
  • Grantham's shopping High Street, until recently, was part of the busy A52 which runs to nearby Nottingham.
  • Grantham is also well known for its indoor and outdoor bowls player's who have represented the clubs within many county and national competitions.

Grantham Detectives

Professional, efficient and discreet private investigations in 158 UK cities, backed by an extensive UK network. Grantham Detectives serve Grantham and localities throughout the East Midlands.

At Grantham Detectives we pride ourselves on our professionalism. We have been assisting Corporate and Private Clients with their cases since 1999, and are always ready to go that extra mile for our clientele.




Grantham Detectives - 95% Success Rate, 100% Legal

By choosing to work with Grantham Detectives, you are choosing a professional, efficient and reliable detective agency with a strong local knowledge of Grantham, the East Midlands and surrounding areas. Our in-house private investigators, operatives and managers are trained to the highest standard. Our equipment is best-of-class. Grantham Detectives are industry leaders in customer service.

All of our private detective services are conducted discreetly and in total confidence.

Last - but not least - you can rest assured that our private investigations services are 100% legal - they comply with all relevant rules and regulations.

Any Questions?

If you have any questions about our private investigations services in Grantham, or private detective packages, then don't hesitate to call our friendly team on 01476 468 085 or contact us via the website.

Grantham Detectives - The No1 Detective Agency in Grantham

Serving Grantham, Harlaxton, Barrowby, Belton, Welby and all areas in and around the East Midlands