CLIRA Ltd provides legionella risk assessment on domestic water systems, and includes the following elements: site specific legionella risk assessments and log books; auto-cad schematic drawings. We provide legionella risk assessment to the UK - nationwide, offering an unparalleled professional service which includes water testing and monitoring, a full training scheme and if necessary, complete remedial works. With CLIRA Ltd you can expect a prompt, efficient and outstanding service. Only at such a high level of quality can we guarantee complete peace of mind.

Company details

Suite 2B Network House, Badgers Way, Oxon Business Park , Shrewsbury , SY3 5AB United Kingdom
View in map

Find locations served, office locations, manufacturers and our distributors. Or browse our memberships .

Business Type:
Service provider
Industry Type:
Water Treatment
Market Focus:
Nationally (across the country)

... Complete Legionella Independent Risk Assessments

CLIRA Ltd has undertaken risk assessments for water companies, private and sheltered nursing homes, factories, healthcare premises, and even other risk assessment companies, throughout the United Kingdom. We are a well established, highly specialised company with profound experience in the field of Legionella risk control. As such we offer a service unequaled in terms of quality, value and customer satisfaction.

As part of your complete water system management package CLIRA Ltd now offers Tank & Water System Cleaning. Their upkeep is key to maintaining a healthy system, not just to combat Legionella, but a whole host of other harmful organisms.

CLIRA Ltd is also now able to provide the necessary testing that forms part of the 'HTM01-05' and 'ACOP L8' certificates, specifically for Dental Practices (both NHS and Private), which all practices are now by law required to have and keep up to date.

Our website provides background information on Legionnaires disease; the legal requirements placed on organisations and companies relating to the prevention of Legionnaires disease and information on the services we provide.

Some of our existing clients include ...
CLIRA Ltd were the suppliers of Legionella Risk Assessments (Olympic Village) to the London 2012 Games

  • 2gether NHS Trust
  • Ardmore
  • Bristol University Hospital
  • Cambridge University NHS Foundation Trust
  • Chelmesford Hospital
  • East Cheshire NHS Trust
  • Gloucester Hospitals NHS Foundation Trust
  • HSG Zander
  • Morris Lubricants
  • North Middlesex Hospital
  • Powys County Council
  • Severn Trent Water
  • Severnside Housing
  • Sodexo Facilities Management

What is Legionnaires' Disease?
In July 1976, the first recorded outbreak of Legionnaires' disease was identified following a significant outbreak of pneumonia among people who attended an American legion convention in Philadelphia.
Of the 183 cases of pneumonia 29 people died.

The first outbreak in the United Kingdom was in 1985 at Stafford District General Hospital, which caused 27 deaths. 200-300 cases are reported annually in England and Wales with a 10-14% mortality rate. August 2006 saw a doubling of reported cases to the health protection agency compared to August 2005.

Legionnaires' disease is a potentially fatal pneumonia, caused by Legionella bacteria. Breathing in small droplets of water, contaminated by the bacteria, causes infection. Everyone is potentially susceptible to infection, but some people are at a higher risk, e.g. those over 45 years of age, smokers and heavy drinkers, those suffering from chronic respiratory or kidney disease and people whose immune system is impaired.

Legionella bacteria are common in natural watercourses such as rivers and ponds. Because it is widespread, Cooling towers and hot and cold water systems may be contaminated. The bacteria survive low temperatures and thrive at temperatures between 20C and 45C if the conditions are right, e.g. if a supply of nutrients is present such as rust, sludge, scale algae and other bacteria.They are killed at high temperatures.

Systems likely to present the greatest risk are:

  • Evaporative condensers
  • Cold water systems
  • Cooling Towers
  • Humidifiers
  • Spa Baths

Your Requirements under General Health and Safety Law. The HSE (Health And Safety Executive) has produced a document The Approved Code of Practice and Guidance L8, which requires, employers or persons in control of a building, must ensure that where there is a risk of exposure to the legionella bacteria that may affect staff or members of the public, a sufficient assessment of that risk should be carried out, and suitable precautions taken.

The Approved Code of Practice and Guidance L8 is enforceable under the Health and Safety at Work Act 1974 and the COSHH (Control of Substances Hazardous to Health) regulations.

The penalties for non-compliance with the current HSE, Approved Code of Practice and Guidance, L8 include heavy fines and even imprisonment.