The UK’s leading remedial works contractor

Titan Mechanical Services is the UK’s premier service provider for Legionella remedial works, offering a comprehensive range of services associated with reducing the risk from Legionella and other waterborne bacteria. From specifying a project through to delivery, our dedicated project management and operational teams have years of experience in managing critical systems and supporting Legionella control.

We are members of the Legionella Control Association, and accredited to the highest standard in everything we do, so you can trust Titan Mechanical to provide you with the independent expertise you need to manage your risk in the most cost effective way. Our engineers are also WRAS approved for RPZ valve testing and TMV servicing.

View more information about the Legionella remedial works services we offer here:


See a case study of a recent Legionella Remedial Works project undertaken by our team >>

More about Legionella and Legionella Remedial Works

The Titan management team have decades of experience in the water treatment industry, and our engineers are amongst the most highly trained and competent in the market. So if you need expert support with your Legionella Remedial Works, or other specialist services such as RPZ valve testing or TMV servicing, then get in touch.

What is Legionella?

Legionella is a pathogenic bacterium that can cause the potentially fatal condition Legionnaires disease. While the bacteria naturally occur at low concentrations in aquatic environments likes lakes, ponds, and rivers, it becomes a problem when it enters engineered water systems. Left untreated it can multiply. When water droplets become contaminated with the bacteria and are inhaled into the lungs, humans can contract Legionnaires disease.

Systems that are commonly associated with Legionella contamination include cooling towers, air-conditioning systems and domestic hot and cold-water systems. The systems need to be risk assessed and a control programme established to reduce any identified risk

What is a Legionella Risk Assessment?

A Legionella Risk Assessment should be conducted by a specially trained Legionella Risk Assessor. It will examine the water system at your premises, and will include a thorough review of your management and control processes. If you are an employer, or you control premises or are responsible for the health and safety of others, you'll need to carry out a Legionella risk assessment of the water systems that are under your control.

What are Legionella Remedial Works?

Legionella control is an important part of any building management regime, and requires ongoing monitoring. Your Legionella Risk Assessment will likely provide a list of remedial actions, necessary to improve the design and function of the system, to achieve compliance with the HSE’s ACOP L8, and HSG274 parts 1, 2 & 3. For example; your Legionella risk assessment may identify that you have deadl leg piping on your system or require TMV installation (put links here to their service pages). The Legionella remedial works are usually undertaken as a one off exercise, although you may need further Legionella remedial works in future years if a risk assessment requires it.

Our wide range of remedial works services are delivered by our own highly trained operatives, who have a wealth of experience in the installation and refurbishment of cold-water storage tanks, domestic hot water and cold-water services through to cooling towers and process water systems. Our dedicated and professional team have the capability to provide remedial solutions such as tank replacement, water tank relining, insulation work, pipe work modifications and upgrading systems to meet the requirements of the Water Supply Regulations 1999. All works are based on the requirements of BS 8558:2015 & BS EN 806 parts 1-5.

How often do I need a Legionella risk assessment?

A Legionella risk assessment should be carried out every two years in accordance with ACOP L8.  However, you may need one sooner if there have been changes to your water system or how it is used. You may also need to carry out a Legionella risk assessment sooner if you discover current Legionella control measures are no longer working, the usage of the building has been changed, or new information about Legionella risk control has become protocol.

Why do I need a Legionella Risk Assessment?

Every water system in or associated with a building, whether they're in use or not, need to have a risk assessment carried out. While many people believe the risk of Legionella is reduced if a water system is rarely used, little-used outlets and water systems can often present the highest risk.

After a Legionella risk assessment has taken place, it's likely that some remedial actions may be necessary to bring your water system up to compliance. These remedial actions will likely include modifications to the existing system that help to reduce the risks associated with Legionnaires Disease.


What might Legionella Remedial Works include?

  • System clean and disinfection
  • Insulation of pipework
  • Dead leg piping
  • Thermostatic mixing valves servicing and installation (TMV servicing)
  • CWST replacement - grp, potable tanks, steel
  • Tank relining
  • Tank refurbishment
  • Repairing or replacing water heaters and calorifiers
  • Installation of flow through expansion vessels
  • Dead leg removal (redundant pipe work) or other unwanted water services
  • Insulating water storage tanks and calorifiers
  • Reconfiguration of pipe work within a cold-water storage tank
  • Fixing new tank lids and fitting bylaw 30 kits
  • Installing/replacing ball valves
  • Installing insect and rodent screens on cold water storage tanks
  • Installation or replacement of shower pumps/water pumps
  • Installation or replacement of stopcocks, isolation valves, double check valves etc.
  • RPZ valve testing

What to expect during Legionella Remedial Works

Our customers are always impressed with the level of service we provide. Your engineer will work with you to ensure that the remedial works are carried out with as little disruption as possible to your water supply and business. Our engineers are experts in water treatment, this allows us to provide an exceptional standard of remedial works in a professional and timely manner. Your remedial works will be carried out according to your risk assessment. We will be able to give you an estimated time for completion before we carry out the works. If you have any questions, you can get in touch with our friendly team.

Why choose Titan Mechanical Services?

Excellent Customer Reviews

Nationwide Coverage

Hugely Experienced Team

Highly Trained Experts

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