Keeping Water Systems Safe Since 1997

  • Legionella Control
  • Legionella Risk Assessments
  • Plumbing & Gas Services
  • Water Treatment
  • Cleaning and Disinfections
  • Mains Water Pipe Chlorinations
  • Accredited Training Services
  • Legionella Remedial Works

Start your path to legionella compliance with a legionella risk assessment

Water Hygiene


& Plumbing


Training &

Gas &


Welcome to GMS Services Ltd

Since our founding in 1997, we have become a recognised leader in the field of Legionella Management and Control. Our membership of the Legionella Control Association, the management systems we have developed and our compliance with the Code and Service Standards means that we are well placed to assist our clients in controlling the legionella risk associated with all their water systems.

Our professional and friendly team provide technical and practical solutions to all our clients to help control potential Legionella issues within their

We can provide all of your water related requirements. This includes, Risk Assessment & Reviews, System Monitoring & Maintenance and Mechanical Remedial Works to upgrade systems in line with current guidance and regulations.


Tailored Log Book & Reporting Systems

Our electronic log book and reporting service can be tailored to your requirements. We consider this to be unique and unrivalled in the water hygiene service sector.


Dedicated Staff

Our team of skilled staff are committed to providing a good quality service in a timely manner. GMS prides itself on a low turnover of staff which produces continuity of high standards of service.


Full Compliance Management

GMS can provide full compliance management from process start to risk assessment, monitoring programmes & remedial works. Dedicated to help you steer clear of exposure of risk and legal consequences of non-compliance.


Training Services

GMS has a fully equipped training centre in which all aspects of water compliance training services and courses can be provided at our offices in Standish, Wigan.

What our customers have to say about us!

“Lancashire County Council have been working with GMS for many years. They currently carry out all of our Legionella Risk Assessments across our estate of 1000+ properties we manage. We are extremely happy with GMS and the services they are providing us. A reliable company who provide me with peace of mind that our buildings have been inspected in accordance with current HSE guidance. They also provide us with mechanical services and general Legionella remedial works which we are very happy with. I would highly recommend GMS Services.”

Jason O’Keeffe - 2017,
Legionella Officer – LCC

“GMS have been our preferred Legionella contractor for over 10 years. They have consistently provided us with a high level of service. This includes, Legionella Risk Assessments, Monitoring & Servicing and remedial works. The systems we have in place have been designed by GMS to suit our needs for our portfolio of properties.”

Mark Murphy - 2014,
Facilities Manager – GGHT

“GMS Services provide a first class service to a portfolio of our properties. GMS are employed on an annual basis to support our company and our schools in delivering effective water hygiene management. This involves, risk assessment, on-going monitoring and maintenance along with disinfections of water systems to ensure compliance with current guidance and legislation.”

David Loxam - 2016,
Property Manager – Property Management Company – Manchester

“GMS are my "got to" company for legionella remedial works. They have carried out some major refurb projects including tank replacements and plant refurbishment. They also carry out risk assessments on complex water systems. They have never lets me down and our clients are always impressed with the results they get from GMS when sub-contracting to them.”

Craig Johnson,
Facilities Management Professional

“Thank you for what the team did for us. A full chlorination of the boosted cold water system and tanks to 307 apartments out of hours. Extra staff turned up late in the day to give the job a push. Very impressed and so is our client Reneker. Thanks for your help.”

Andrew Moss - 2018,

“JCI Property Management appoint GMS to carry out all our water hygiene / water treatment related services. We manage a variety of properties including healthcare, specialist social care and hotels. GMS provide a complete package of water management that includes, risk assessment, water monitoring and reporting, consultancy, training and mechanical remedial works. It is so convenient to have a good reliable company who can cover all bases for us. We would highly recommend GMS to anyone looking for peace of mind and trust in a contractor..”

Michelle Pye - 2020,
JCI Property Management Services

Find out how we can help you!

With our extensive experience in Legionella Risk Assessment Services & Water Treatment Services Contact us today to find out how we can help you.

Contact Us

Customer Focus – June 2022

An interview with Louise Brown – Wigan & Leigh College Wigan & Leigh College is a further education organisation which provides education for students aged 16+. The college has around 9000 students and is split across 7 buildings. 4 in Wigan and 3 in Leigh. In April 2022, the college appointed GMS Services Ltd to… Read more »