If your risk assessment has flagged actions, remedial works are the next step: the corrective work that brings your water system back to a compliant, low-risk state, with a record you can show an auditor.
Our work follows HSG274 (supporting ACoP L8), BS EN 806 and the Water Supply (Water Fittings) Regulations 1999.
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What are Legionella remedial works?
Remedial works are the corrective actions that fix the problems found in a Legionella risk assessment, audit or inspection. They can be small, such as removing a dead leg, or larger, such as replacing a tank or altering pipework.
Unlike routine monitoring and flushing, remedial works deal with the root cause. They reduce the chance of repeat failures.
Why might you need remedial works?
Your risk assessment lists actions and ranks them by urgency. They have to be signed off as done to complete the process. Remedial works are how that happens.
What do remedial works include?
Dead leg and redundant pipework removal
Unused pipework holds stagnant water, a key Legionella risk. We find it and remove it, so water flows through the whole system.
Pipework alterations
Poor layouts, cross-connections or pipework that does not suit how the building is used are altered to meet current practice.
Tank repairs and refurbishment
New lids, insect and rodent screens, ball valves, insulation and internal pipework changes, including Bylaw 30 kits, on cold water storage tanks.
Valves and thermostatic mixing valves
We install, replace and service TMVs, isolation valves, stopcocks and double check valves.
Insulation and temperature control
We insulate tanks and pipework and reposition pipes, so hot water stays hot and cold water stays cold.
Cleaning, disinfection and sampling after the works
Where required, we clean and disinfect, then sample to confirm that the system is clean and ready for use.
Thermostatic mixing valves (TMVs)
A TMV limits the temperature at showers, baths and basins to protect against scalding, while the hot water supply stays hot enough to control Legionella. TMVs scale up and drift, so they need regular checks. They should be checked at least annually, and serviced if the outlet temperature has drifted from its original setting or the valve is scaled or blocked.
How long will remedial works take?
It depends on access, the scope of the work, and whether the system must be shut down. We plan around your operations to keep disruption low, and give you an estimate when we quote.
What should you do after the works?
Keep a record of what was done, and what could not be done. We give you a written record of the works. Then keep monitoring to show the controls are holding. Our monitoring service can do this.
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Where we work
We carry out remedial works across Leeds, Yorkshire, the North East, the North West, the East Midlands and Humberside, roughly 100 miles from Leeds along the M62 corridor, from Newcastle to Nottingham and across to Humberside, and sometimes further.
Frequently asked questions
Who decides what remedial works are needed?
Your Legionella risk assessment sets the actions. We can review an existing assessment, whoever carried it out, and agree a prioritised programme.
Will the works affect our water supply?
Some tasks need a short isolation. We agree timings with you in advance.
How is it priced?
By the scope, access and materials. We quote in writing.
Use the quote form.
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Very happy with their very high standard of work Water Hygiene Services have been carrying out legionella risk assessments for us for a couple of years now. We have been very happy with their very high standard of work, their ability to work to tight deadlines and the general professional service they provide
