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Solutions
Clean WaterControl pathogens, biofilm and cost where conventional treatment failsAir & Infection ControlReduce airborne pathogens and infection risk, with no ozoneEnergyCut energy and recover it from the systems you already runAgriculture & SoilUse less water and fertiliser while protecting yield and soil
Sectors
Healthcare & HospitalsKeep patients safe and your accreditation secure, with infection, Legionella and AMR risk reducedWater & WastewaterStay in consent, and cut the energy and chemicals it takes to get thereCommercial & FacilitiesMeet your EPC and disclosure obligations while running cost and carbon fallAgriculture & Urban FarmingProtect your yield and soil while using less water and fertiliserLocal AuthoritiesMove your estate towards net zero with compliant assets, funded to saveEmerging MarketsBuild investable, accreditation-ready infrastructure on reliable water, sanitation and powerHotels, Hospitality & LeisureKeep guests safe and pools open, with Legionella risk controlled and pool-hall cost cutData CentresCut the cost and water your cooling burns, and harden Legionella control, without touching uptimeFood & Beverage ProcessingCut your trade-effluent bill and hold consent, without touching food safety or uptime
Tools
Where You'd Gain MostPick your sector and what is driving you, and see where you would gain and where to startTrade Effluent Bill EstimatorEstimate your annual trade-effluent bill and see how much is driven by strength, the part you can reduceWater Safety Risk ScorecardAnswer eight quick questions and see your indicative Legionella and waterborne risk band, and where to startCompliance Readiness CheckerPick the duty you answer to, from Legionella to net zero, and see your readiness band and the gaps to closeAeration Energy Cost CalculatorSize the annual energy, cost and carbon of aeration, the single largest energy load in wastewater treatmentCooling Tower Water & Cost CalculatorEstimate the annual water and chemical cost of a cooling tower, and the share that treatment can reduce
Solutions
Clean WaterControl pathogens, biofilm and cost where conventional treatment failsAir & Infection ControlReduce airborne pathogens and infection risk, with no ozoneEnergyCut energy and recover it from the systems you already runAgriculture & SoilUse less water and fertiliser while protecting yield and soil
Sectors
Healthcare & HospitalsKeep patients safe and your accreditation secure, with infection, Legionella and AMR risk reducedWater & WastewaterStay in consent, and cut the energy and chemicals it takes to get thereCommercial & FacilitiesMeet your EPC and disclosure obligations while running cost and carbon fallAgriculture & Urban FarmingProtect your yield and soil while using less water and fertiliserLocal AuthoritiesMove your estate towards net zero with compliant assets, funded to saveEmerging MarketsBuild investable, accreditation-ready infrastructure on reliable water, sanitation and powerHotels, Hospitality & LeisureKeep guests safe and pools open, with Legionella risk controlled and pool-hall cost cutData CentresCut the cost and water your cooling burns, and harden Legionella control, without touching uptimeFood & Beverage ProcessingCut your trade-effluent bill and hold consent, without touching food safety or uptime
Tools
Where You'd Gain MostPick your sector and what is driving you, and see where you would gain and where to startTrade Effluent Bill EstimatorEstimate your annual trade-effluent bill and see how much is driven by strength, the part you can reduceWater Safety Risk ScorecardAnswer eight quick questions and see your indicative Legionella and waterborne risk band, and where to startCompliance Readiness CheckerPick the duty you answer to, from Legionella to net zero, and see your readiness band and the gaps to closeAeration Energy Cost CalculatorSize the annual energy, cost and carbon of aeration, the single largest energy load in wastewater treatmentCooling Tower Water & Cost CalculatorEstimate the annual water and chemical cost of a cooling tower, and the share that treatment can reduce
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About HES

We assess the built environment from every angle, and recover the assets it wastes.

HES uses cutting-edge technology and insight to look at the built environment from more diverse angles. We engage with new projects and previously installed assets alike, turning them into green environmental projects by recovering the assets they waste, water, wastewater, power and heat, and adding value back through utility-cost savings and medical applications and inspections.

What we do

Greener assets, lower costs, a smaller footprint

We protect the environment by combining every aspect of the built environment with the technologies and methods that genuinely improve it. We do this at a more local than national scale, where it has the greatest effect on the issues we face today, bringing together like-minded people who hold the technical, financial and management skills to deliver.

The result for the client is straightforward: their environmental needs and requirements met, their spiralling costs brought down, and the carbon footprint of their existing and developing assets reduced. Lower overheads let them compete harder in their own markets and create a greater impact.

Our expertise

Deep expertise in the built environment

We bring deep expertise in the construction industry, and we use the most cutting-edge technology, tried and tested in the field. With that range of experience, knowledge and commercial understanding, we provide a comprehensive service.

Electrical engineeringAir conditioning and refrigerationHeating and coolingLightingNatural gasWaterMechanical engineeringSolar (PV)WindHydro
How we work

A single platform, one accountable result

We bring infrastructure, design and management together under a single point of accountability, choose the best capabilities for your site without bias, and prove every result independently. The full method, from assessment to proof, is set out in our approach.

Our approach in full
Mission and vision

A built environment where people and planet thrive

Our mission is to radically improve the sustainability of the built environment, by transforming the way it is planned, designed, constructed, maintained and operated. Our vision is a built environment that enables people and planet to thrive by:

  • Mitigating and adapting to climate change
  • Eliminating waste and maximising resource efficiency
  • Embracing and restoring nature, and promoting biodiversity
  • Optimising the health and wellbeing of people
  • Creating long-term value for society and improving quality of life

“With good engineering practice, energy saving challenges are easily overcome.”

Speak to the Team

Tell us what you are accountable for

Whatever the cost, risk or obligation in front of you, start a confidential conversation. A senior member of our team will respond with how we would help.

Start the conversation

Hydrous Environmental Solutions Ltd is registered in England and Wales (company number 16087834). Registered office: 86-90 Paul Street, London, EC2A 4NE, United Kingdom.