Dead leg piping in hot and cold water systems 

Titan Mechanical Services is a leading water hygiene services provider in the water treatment industry. We offer a comprehensive range of mechanical services to keep your hot and cold water systems compliant. In the guide below, we take a look at dead leg piping and pipe work modifications in hot and cold water systems. We also provide you with all the information you need to know about what dead leg piping means and why it should be modified.

What is dead leg piping?

In water systems, the term dead leg piping refers to a redundant length of pipework that is either completely unused, or has very little flow running through. Dead leg piping can occur when pipework systems are changed over time, by plumbing faults or changes to the use of the system. Dead leg piping can occur in industrial, commercial and domestic water systems.

Can you modify dead leg piping near me?

Yes, Titan Mechanical Services is a national service provider, with mobile engineers operating across the UK. From our base near Liverpool, we offer water treatment services (including pipework modifications/ dead leg piping) to a wide range of clients in the industrial, commercial and public sectors.

Does dead leg piping need to be removed?

When piping is left unused or rarely used, it does not have a regular flow of water running through it. This can lead to stagnant water sitting in the pipeworks; which in turn lead to contamination with waterborne bacteria such as Legionella. Lengths of dead leg piping measuring approximately 1.5 times its own width should be removed. As this redundant piping can cause a serious risk to health; it is always recommended you work with a water hygiene services engineer on pipeworks modification.


Will my Legionella risk assessment identify dead leg piping?

Your Legionella risk assessment should identify and account for any dead leg piping in your hot or cold water system. If dead leg piping is used occasionally and cannot be removed; you should put measures in place to flush through your system regularly. Your Titan Mechanical engineer will assess your water system and advise on the best course of action to tackle dead leg piping.


What is the difference between dead leg piping and a dead end?

Dead leg piping might connect to another piece of pipework or fit within the hot or cold water system. A dead end does not connect to anything else. At a dead end, the water has nowhere else to flow.


What to expect during dead leg pipework modifications 

Your engineer will provide you with an estimated timespan for your dead leg piping project. As this depends on each individual case, your engineer will communicate with you clearly to let you know how long you should expect the works to take and you will be given more accurate information at the time of booking. If you would like more information about what to expect during dead leg piping modifications, please contact our friendly team for an pricing and timespan estimate. 


How much will dead leg piping removal & pipeworks modification cost?

Please get in touch with our team or visit our 'Get a quote' page for more information about dead leg piping and pipework modifications costs.

What if dead leg piping can’t be removed?

In certain instances, it is not possible to remove dead leg piping. For example, it may not be possible to remove a dead leg if a section of pipework is occasionally used. In this case, you should work with a water treatment services provider (such as Titan Mechanical Services) to ensure the appropriate action is taken to keep your water system compliant. In cases such as this, works can be undertaken to reduce the length of dead leg piping or install flushing points.

What does dead leg piping modification involve?

As a part of handling dead leg piping, you can typically expect some of the following pipeworks modifications to be carried out in your facilities.

  • The modification or replacement of pipework runs
  • The removal of unused or rarely used pipeworks and any related fittings
  • The modification of circulation pumps, the improvement of pump performance and balance valves for hot water systems
  • The addition of flow regulator booster pumps to hot water systems

Further mechanical services we offer

We offer a full suite of services to help your facilities remain compliant. Get in touch with our friendly team to enquire about how we can help you.

Other Mechanical Services


Can you service more than one dead leg?

As your facility may have moe than one lot of dead leg piping, we can work on more than one during our visit/ visits. We can also provide more water system services during your project. Please get in touch with us for a quote or more information.

Why choose Titan Mechanical for your dead leg piping services?

At Titan Mechanical Services we offer a range of water hygiene services for your facilities. We are experts in water treatment and legionella control and take pride in using this knowledge to provide an excellent level of service to all customers, at every opportunity. 

Contact Titan Mechanical today to book any water hygiene services. Ensure that your hot or cold water system complies with water hygiene quality standards.

50 years experience

Our team of experts have over 50 years of combined experience, bringing a thorough knowledge of the industry and unrivalled expertise in dealing with a variety of water systems.

Highly Accredited

We are proud to have been accredited to the highest standard for all our services. Please visit our homepage to see a full list of accreditations.

Full suite of services

In addition to the planned remedial work and water system maintenance, we also carry out tank refurbishment and tank reline services that are cost effective and completed to a very high standard.

Nationwide coverage

With a Head Office based near Liverpool, we have teams working up and down the country and have the capacity to carry out Legionella remedial works in the South and South East England, North West, Midlands, South East England, and Wales, North, North East, and Scotland.

How much will removing dead leg piping cost?

All Titan Mechanical engineers are experts in water hygiene.

More information about dead leg piping & pipeworks modification

Call 01704 335800 to speak to our expert team.

Get in touch, we're here when you need us