Private Detective Merthyr Tydfil

Sarah Gallienne Investigations have an exceptional team of experienced male & female private detectives available to assist, covering Merthyr Tydfil as well as the whole of Wales. Concerned your partner might be cheating, feel something’s not quite right? Do you want to track their movements?

We specialize in GPS Trackers 4 Sale & Surveillance, for all occasions. Our investigators can assist with these scenarios and more!

We provide an extensive range of services available to all our client’s, requiring work done in Merthyr Tydfil or anywhere in Wales. Including Tracing Missing Persons, Background Checks, Door Knock Enquiries, Accident Investigations & much, much more.

Be safe in the knowledge that, when searching online for the best private investigators, private detectives  in Merthyr Tydfil, South Wales,  we are the go to agency. We can assist with your enquiry, whatever the nature of it.

Hiring a private investigator is a difficult decision to make.  You’re facing a painful situation, perhaps you have doubts or misgivings or simply feel something isn’t right.  You want to make the right decision and not be seen to over react. However, by hiring a Private Detective (Merthyr Tydfil) we can put your mind at ease.


We cover the above location from our local team of Private Investigators operating from our Head Office in South Wales, with agents across the UK for enquiries further afield.


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Private Detective Merthyr Tydfil

Please feel free to call, text, email, or live chat – to find out how we can help, or use the Contact Us form below for a same day response.




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Professional Investigator Network
British Agents
 UK Professional Surveillance Network
Approved Private Investigator