Cold water tank replacement
Old, corroded or oversized tanks swapped for WRAS-approved tanks with tight-fitting lids, insect screens and screened overflows and vents.
Legionella remedial works
Your risk assessment told you what's wrong. We put it right. Our engineers carry out the actions in your report, from a single dead leg to a full tank replacement, then update your records so you can prove the risk is controlled.
What we fix
Common remedial works
These are the actions that come up most often in Legionella risk assessments. If it's in your report, we can quote for it.
Tank cleaning & disinfection
Drain-down, removal of sediment and biofilm, chlorination and flushing, with a disinfection certificate to BS 8558.
Tank lids, insulation & screens
Upgrade existing tanks so dirt, insects and heat can't get in, keeping stored cold water below 20°C.
Dead leg removal
Cut out redundant pipework where water sits still and bacteria thrive. One of the most common, and most effective, fixes.
Little-used outlet removal
Remove or re-plumb outlets nobody uses, so you're not flushing them every week forever.
Pipe insulation
Lag hot pipes to keep them hot and separate or insulate cold pipes that are warming up near heat sources.
Hot water temperature fixes
Reset and verify cylinder and calorifier temperatures to at least 60°C, and balance circulation so outlets reach 50°C within a minute.
Calorifier & cylinder cleaning
Drain-down and blow-down to remove sludge from the base of hot water vessels, where Legionella can multiply.
System disinfection
Whole-system chlorination after a positive sample, new installation or major works, certified to BS 8558.
TMV installation
Fit thermostatic mixing valves where scalding is a risk, so hot water can be stored safely hot. More on TMVs.
Shower head & hose replacement
Replace scaled or perished shower heads and hoses with easy-clean, low-retention fittings.
Expansion vessel upgrades
Replace dead-end expansion vessels with flow-through types, or fit drain valves so they can be flushed.
Had your assessment done by someone else?
No problem. Send us the report and we'll quote for the remedial actions. We'll tell you honestly if anything can wait.
How we work
From report to sign-off
Prioritised quote
We price each action from your report and tell you which are urgent and which can be planned in.
Planned around you
Works scheduled to suit tenants, residents, pupils or trading hours, with water off for as little time as possible.
Completed & evidenced
Before-and-after photos, temperatures and any certificates, all supplied for your records.
Records updated
We update your risk assessment and logbook so the action is closed off on paper as well as in the plant room.
Prioritising actions
What needs doing first?
How we prioritise remedial actions. Your assessor will set the priority for each action in your report.
| Priority | What it means | Typical timeframe |
|---|---|---|
| High | A clear risk of exposure, e.g. contaminated tank, hot water below 50°C, no control scheme | Immediately, within days |
| Medium | Conditions that could support growth, e.g. dead legs, warm cold water, uninsulated pipework | Within 1–3 months |
| Low | Improvements and good practice, e.g. labelling, replacing ageing fittings | Planned maintenance |
A guide only. Timeframes depend on who uses the building. Healthcare and care settings may need faster action.
FAQs
Remedial works questions
Do I have to complete every action in my report?
You must take reasonable steps to control the risk. High-priority actions should be dealt with straight away. Lower-priority items can often be planned in, and we'll help you build a sensible programme.
Will the water need to be turned off?
For some works, yes, but usually only for a short time. We'll tell you in advance and work around your tenants, residents or business hours.
Can you work in occupied homes and HMOs?
Yes. Much of our work is in occupied rented property. We give tenants notice, keep disruption to a minimum and leave everything clean.
Will you update my risk assessment afterwards?
Yes. When we've completed the work, we record it against your assessment so you can show the action has been closed off.
Related services
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From the blog
Related articles
Summer heat and cold water temperatures: keeping below 20°C
Hot weather warms cold water pipes and tanks towards the range Legionella likes. Why it happens and practical fixes to keep cold water cold.
Positive Legionella sample result: what happens next?
A positive Legionella result is worrying but manageable. What the numbers mean under HSG274, who to tell and how to get the system back under control.
Cold water tank inspections and remedials: what we look for
What happens during a cold water storage tank inspection, the faults we find most often and the remedial works that put them right.
Got a list of actions to work through?
Send us your report or tell us what's needed, and we'll come back with a clear, prioritised quote.