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  3. Water Hygiene Services

Water Hygiene Services

Kim Frater, founder of Bid Trawler
Written by Kim Frater
Former Public Sector Buyer • Founder of Bid Trawler • 40+ years' public sector experience
"I believe public procurement shouldn't be complicated. Every guide I write explains the process in plain English so you can bid with confidence."

3 minute read  •  Updated October 2026

A practical guide to understanding what the buyer really wants and how to build a winning response.

Think beyond just the water

At first glance, this tender might seem like it's all about water hygiene.

But dig a little deeper, and it's clear that Caledonian Sleeper is looking for more than just compliance.

They're looking for peace of mind.

This contract isn't just about testing and treatments.

It's about ensuring the safety and comfort of passengers and staff, whether they're on the train or in an office.

They're trusting you to protect their reputation.

That's what I'd focus on in my submission.

Understand the unique context

Caledonian Sleeper operates in a unique environment.

You're not just dealing with a static office building.

You've got trains that cover vast distances.

Offices and lounges that need to be consistently safe and hygienic.

This isn't just a logistical challenge.

It's a chance to show how you can handle complexity.

And deliver reliable solutions no matter where the service is required.

Pay attention to what they say

Caledonian Sleeper mentions legionella testing right at the start.

They don't just want it done.

They want it done thoroughly and consistently.

This tells me that quality is non-negotiable.

They aren't just ticking boxes.

They're ensuring the wellbeing of everyone who uses their service.

I'd make sure my submission highlights not just the 'what' but the 'how'.

How you'll maintain high standards.

How you'll adapt to each unique location.

Don't underestimate the importance of reliability

Every bidder will promise the basics.

Regular testing, compliance with regulations, quick turnaround times.

But the buyer is looking for reliability.

They want to know that when they call, you'll be there.

That you'll deliver consistent quality without them having to chase.

That's what I'd emphasise in my response.

Evidence always carries more weight than promises

It's easy to claim you'll do a great job.

But what evidence do you have to back that up?

I'd be including:

  • Case studies of similar work in transport or multi-site environments
  • Testimonials from other clients
  • Statistics on response times and issue resolution
  • Certifications and accreditations that demonstrate expertise

Evidence always beats promises.

Think about the people who rely on you

There's a human element to this contract.

Passengers who expect a safe journey.

Staff who need a healthy workplace.

I'd be thinking about how my work impacts them.

And how my approach to water hygiene makes their experience better.

Show how you'll maintain standards throughout

Consistency isn't easy.

Especially across multiple sites and environments.

But it's crucial.

I'd explain how I plan to maintain high standards over the full 1080 days.

Things like:

  • Staff training and development
  • Regular audits and inspections
  • Contingency plans for emergencies
  • Ways to keep communication open with Caledonian Sleeper

Remember, this is about partnerships

Caledonian Sleeper isn't just buying a service.

They're looking for a partner.

Someone they can trust to act in their best interests.

I'd be demonstrating how I plan to work collaboratively with them.

To listen, adapt and deliver.

Common mistakes

Avoid submissions that:

  • Focus only on the technical details without context
  • Ignore the unique challenges of on-train services
  • Lack evidence of past performance
  • Fail to address how you'll manage multiple sites
  • Overlook the importance of communication and partnership
  • Assume compliance alone will win the contract

My Final Thoughts

Caledonian Sleeper is looking for a partner who understands the complexities of their environment.

And who can provide reliable, high-quality water hygiene services.

With a contract value of £680,000 over 1080 days, they want assurance that their investment will deliver tangible benefits.

This isn't just about offering the lowest price.

It's about proving your quality and reliability can make a real difference.

With those priorities in mind, your written submission will carry the weight it needs.

Thanks for reading.

I hope this guide has helped make public procurement feel a little less daunting. If it has, then it's done its job.

Kim
Founder, Bid Trawler

P.S. Got a question?

If you've got a question about anything you've read, or you're stuck on a tender, just send me an email.

Whether it's a quick question or you simply need pointing in the right direction, I'm always happy to help if I can.

kim@bidtrawler.com

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About our "How to Win This Contract" guides

Our guides are written using publicly available procurement information, including contract notices and published tender documents where available. They are designed to help suppliers understand the buyer's likely priorities and think more strategically about their approach. They are not based on any bidder's confidential submission, bespoke bid strategy or non-public procurement information.

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