Our History

GMS Services Limited was formed by Mr. Howard Parry. Previously to this Howard was employed by CIBA-Geigy as a Water Treatment Consultant involved in all aspects of product use and development for the prevention of Scale, Corrosion and Microbiological Growth within Boiler and Cooling Water Systems. He was responsible for several product introductions throughout the UK during his time at CIBA-Geigy.

Howard became involved as a consultant with several high profile Legionella outbreaks in the 1990s and worked for specialist Legionella Management Companies during this time.




In 1997 Howard formed GMS Services Limited to specialise in the Management and Control of Legionella Bacteria within Domestic and Commercial buildings.


Our Focus

The objectives set out in 1997 for GMS Services Limited was to provide the most cost effective solutions to the control of the Legionella Bacteria. This is still the case today. We aim to provide people who manage buildings with piece of mind that their systems are fully protected and that all actions taken are auditable and in full compliance with the HSE’s ACOP and guidance within L8,  HSG 274 documents and the standards set out in the most recently released BS 8580-1 2019. Whilst doing this, we aim to provide an enjoyable environment for our staff and provide support whenever they need it.

Further Development

In 2001 the Mechanical Services Division was established to enable GMS Services Limited to address any none conformity identified. This section of the company can provide solutions with regards to repair or replacement of all the water systems heating, cooling and temperature control equipment as well as modifications to the systems to bring them into line with the Water Regulations. We have a dedicated team of qualified Plumbers within this department who can address any aspect of our clients Plumbing or Mechanical needs.

In 2002 GMS Services Limited introduced a fully electronic system for both Legionella Risk Assessments and Water Monitoring Programs. This system provides our clients with real time access to all aspects of the Legionella Management Program on a 24 hour 7 day per week basis. This system is fully auditable and provides multi-level access to results via the internet. Clients not only have the ability to view all the results but can manage their systems none conformities, sign off completed aspects and ensure that every property under their management is being managed to the standards outlined within the Government Health and Safety Legislation.

Our Location

Based at our Standish office on the outskirts of Wigan – Lancashire we cover primarily the North West of England, but we do have clients in Scotland, North & South Wales and provide for services for nationwide organisations throughout the UK.

We have a dedicated team of Legionella Risk Assessors and Monitoring Teams along with a Mechanical Services Division who can carry out any remedial works with any water system be it up grading of the system to a full install. We also have a training facility based at our office in Wigan.

Our client base is with both the Public and Private sectors. Listed below are some of the clients we have worked with over the years the company has been established:

  • Wigan Metropolitan Borough Council
  • Wigan & Leigh Housing Association
  • Stockport Metropolitan Borough Council
  • Bolton Metropolitan Borough Council
  • Warrington Metropolitan Borough Council
  • Derby City Council
  • Liverpool Community Health Trust
  • Sure Group Limited
  • Reneker Ltd
  • Galloways Bakery
  • West Lancashire Borough Council
  • Co-Op Stores
  • NPS Stockport
  • Wigan Leisure & Cultural Trust
  • Golden Gate Housing Association
  • Salix Homes Ltd
  • Torus Housing
  • Nice-Pak International
  • Maghull Council
  • Greystar Europe Ltd
  • NPS North West
  • Blackpool Council
  • St Helens Council
  • Lancashire County Council
  • Cowan & Co
  • Calico Housing Ltd
  • HFL Building Solutions
  • Cruden Construction
  • Kirkham Town Council
  • Fylde Borough Council

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.

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LCL Awards Training Centre Achieved

After COVID restrictions put barriers in our way in 2020, we have now reached our goal to become an accredited training centre. This week we officially became an LCL Awards Training Centre. We will initially be providing Water Regulations with a view to providing Unvented Hot Water Training and a Legionella Operators and Managers Course…. Read more »


This weekend (27th February 2021) we have carried out a clean and disinfection of the water system at Melwood Training Ground (Former LFC). The property was purchased by TORUS HOMES last year and is set to open up as a temporary vaccination centre prior to the site being redeveloped as housing in the future. As… Read more »