MWS Limited, a water hygiene company specialising in closed-loop water systems, disinfections, and Legionella compliance, digitised their risk assessment workflow by adopting LegionellaDossier. In this case study, we explore the key challenges they faced, the measurable improvements they’ve gained, and the features that made the biggest impact.

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Before: A Time-Consuming, Manual Headache

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Before using LegionellaDossier, Paul Prescott, responsible for setting up this side of the business, used a combination of Word documents, spreadsheets, iPads, and even paper-based notes. Reports required a full day on-site, followed by up to a day and a half in the office to match photos with assets and finalise documentation.

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Discovering LegionellaDossier through a Google search, Paul was immediately drawn to the feature that uses templates to link assets to technical recommendations. This not only reduced the need for manual writing but ensured consistent, professional communication to clients. The ability to adjust templates and reuse them has helped him save significant time across projects.

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"It used to take me two to two days in total to carry out the works.” - Paul Prescott

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1.5 Day Saved Per Assessment, Reports Delivered the Same Day

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The real turning point came when Paul began using the Bluetooth-enabled thermometers. Unlike manual readings that required stopwatches and handwritten entries, the Bluetooth integration allows for instant, automated data capture. This real-time monitoring not only improved efficiency but also enhanced client trust with visual graph data and the ability to easily spot hotspots within the system.

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"With a Bluetooth thermometer, it's so easy. You just connect it, put it under the tap and then that's it. It's saved." - Paul Prescott

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Key Features Implemented:

• Automated Technical Recommendation Templates – The system ties technical recommendations templates to specific assets. These are customisable on the desktop, helping Paul reuse modified versions across multiple reports.

• Room Duplication for Hotels/Hostels – For sites with identical rooms (e.g., hostels), Paul can duplicate room templates, cutting down repetitive data entry and ensuring consistent output.

• ‍Temperature Bluetooth Monitoring – The integration with Bluetooth probes means temperatures are recorded automatically and displayed as graphs — saving time and improving accuracy.

• ‍Site Mapping and Asset Visibility – MWS uses the UK map view in LegionellaDossier to track all site locations. The integrated asset register and recommendations provide a complete overview per site.‍

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"LegionellaDossier has it set templates within the software. It puts that template in for you which makes it so much easier. And that's one of the things I thought, oh that that's what we need.” - Paul Prescott

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Impact

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The ability to duplicate rooms has proven invaluable, especially for sites like hotels or hostels with identical layouts. Paul can now create a template for one room and apply it across dozens in minutes.

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In total, Paul estimates the software has saved MWS over five full days of admin per month. Where he once completed 2–3 jobs a week, he now completes up to 5, with same-day report delivery becoming the norm, and productivity has soared.

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"So in regards to time saved, it's absolutely brilliant it helps us get more stuff done in less time.” - Paul Prescott

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Though Paul is currently the sole user, MWS is also expanding usage to subcontractors and new hires. He's actively promoting the tool to clients as a mark of professionalism and efficiency. His wish? A built-in schematic drawing feature to help visualise systems on sites lacking proper diagrams.

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Looking Ahead

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LegionellaDossier has not only streamlined Paul's work but has also unlocked capacity, increased potential collaboration with clients, and improved the overall quality and speed of service delivery.

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"It saves time. It helps us deliver work faster. It’s just a no-brainer.” - Paul Prescott

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