When planning a refurbishment of your building’s water systems — whether it’s an upgrade to old pipework, installing new tanks, or modernising controls — it’s tempting to think that a good M&E contractor or facilities team can handle it all. But one crucial expert often overlooked in these projects is the Water Hygiene Consultant. Their early involvement isn’t just helpful; it can make the difference between a successful, compliant refurbishment and a costly, risky one.

Here’s why a Water Hygiene Consultant should be a key player in your refurbishment plans:

1. Compliance with Legal Requirements

Water systems in the UK must comply with a range of legal duties under legislation like the Health and Safety at Work Act, COSHH Regulations, and, most notably, the Approved Code of Practice (ACoP L8) for controlling Legionella risks. A Water Hygiene Consultant understands these regulations inside out. They’ll help ensure that your designs, installations, and operating procedures meet legal standards — protecting you from potential prosecutions, fines, or civil claims.

2. Designing Out Risk

Water hygiene isn’t something you can “fix later.” A consultant can review your refurbishment plans before work begins, advising on design choices that minimise Legionella risk and water stagnation issues — for example, avoiding dead legs, selecting appropriate materials, ensuring correct flow rates, and designing systems that are easy to clean and maintain.

Getting this right at the design stage is far cheaper and easier than trying to retrofit solutions after problems arise.

3. Integration with Risk Assessments

If you already have a Legionella risk assessment in place, a refurbishment could render parts of it invalid. A Water Hygiene Consultant will make sure your new or altered systems are properly risk assessed and that all changes are incorporated into your Legionella control scheme, keeping you legally compliant and audit-ready.

4. Expert Oversight During Works

During refurbishment works, unforeseen problems can arise: old contamination in pipes, redundant outlets being missed, or commissioning errors that introduce new risks. Having a Water Hygiene Consultant involved means you have someone who can spot these issues in real time, advise on corrective actions, and verify that final commissioning meets water hygiene standards.

5. Saving Money in the Long Run

Ignoring water hygiene during refurbishment often leads to costly remedial works down the line: unexpected sampling failures, disinfection costs, temporary shutdowns, and even reputational damage if waterborne diseases are linked back to your site. Involving a consultant early reduces these risks significantly, making it a smart financial decision as well as a health and safety one.

6. Training and Handover Support

Finally, a Water Hygiene Consultant can help ensure that your team — from site managers to maintenance engineers — understands the operational requirements of the refurbished system. They can deliver training, provide updated schematic drawings, and ensure your handover documentation supports long-term compliance.

In Summary

Refurbishing water systems isn’t just about flow rates and pressure tests — it’s about protecting people. Bringing in a Water Hygiene Consultant early gives you the expertise needed to design safer systems, comply with legal duties, and avoid expensive mistakes.

In short: involve them early, and thank yourself later.