HES is one partner for the environmental performance of the built environment. Across water, air and energy, we cut cost, remove risk and meet environmental obligations, with results proven independently.

Does HES sell a particular technology or product?

No. We are organised around the result you are accountable for, not a product. We bring the right environmental capabilities together and deliver that result.

Which sectors does HES serve?

Healthcare & Hospitals, Water & Wastewater, Commercial & Facilities, Agriculture & Urban Farming, Poultry Farming, Local Authorities, Emerging Markets, Hotels, Hospitality & Leisure, Data Centres, Food & Beverage Processing, Mental Health, Justice & Custody, Social Care, Education.

Integrated environmental solutions

Cleaner water, safer air, efficient energy.

One partner for your estate's environmental performance, every result independently proven.

From water and wastewater to air quality and energy, we improve the environmental performance of your whole estate. The result: lower cost, less risk, and every environmental obligation met.

Explore Solutions View Case Studies

Independently verified, from pathogens cut to 0 cfu/g at a major UK airport to 34% less treatment energy.

Water & Wastewater

Stay in consent and protect your capacity, with cleaner discharge, lower treatment energy and fewer chemicals.

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Air Quality & Infection Control

Protect the people in your buildings, with infection, Legionella and AMR risk brought under control across your estate.

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Energy & Agriculture

Get more from every input, with less energy and water in, and more yield and resilience out.

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Our Commitment

Lower cost, less risk, every obligation met

HES assesses the built environment from every angle and recovers the assets it wastes, across water, energy and air, delivered as a single accountable platform of infrastructure, design and management, with deep engineering expertise behind it and every result proven independently.

About HES

Reduce

Take cost out of your estate. We cut energy, water, chemical and maintenance spend, often within the first weeks.

Protect

Keep risk off your balance sheet. We bring infection, pathogen, regulatory and asset risk under control before it reaches you.

Deliver

Meet what you are required to achieve. We deliver on your ESG, net zero, compliance and accreditation obligations, with evidence.

Integrate

Carry none of the complexity. We bring every capability together as one partner.

Evidence

Independently measured, never merely claimed.

0 cfu/gRecurring waterborne pathogens eliminated in four days at a major UK airport, confirmed by an accredited laboratory

34%Less energy to treat the load at a 110,000-population wastewater works, measured by an independent consultancy

26%Less irrigation water used in an independent university field trial (UC Davis), with no loss of yield

Sectors

Built for your sector

Healthcare & HospitalsKeep patients safe and your accreditation secure, with infection, Legionella and AMR risk reducedExplore Water & WastewaterStay in consent, and cut the energy and chemicals it takes to get thereExplore Commercial & FacilitiesMeet your EPC and disclosure obligations while running cost and carbon fallExplore Agriculture & Urban FarmingProtect your yield and soil while using less water and fertiliserExplore Poultry FarmingProve you control the water your birds drink, with biofilm and pathogens cleared and the evidence in handExplore Local AuthoritiesMove your estate towards net zero with compliant assets, funded to saveExplore Emerging MarketsBuild investable, accreditation-ready infrastructure on reliable water, sanitation and powerExplore Hotels, Hospitality & LeisureKeep guests safe and pools open, with Legionella risk controlled and pool-hall cost cutExplore Data CentresCut the cost and water your cooling burns, and harden Legionella control, without touching uptimeExplore Food & Beverage ProcessingCut your trade-effluent bill and hold consent, without touching food safety or uptimeExplore Mental HealthKeep the ward safe, with a hand-hygiene option that carries no ingestion, fire or ligature riskExplore Justice & CustodyHand hygiene that is safe to issue inside the wing, where alcohol products are restrictedExplore Social CareProtect residents and carers, with hand hygiene that is safe to use and kind to skinExplore EducationCut infection-driven absence with child-safe hand hygiene, at a defensible cost across the estateExplore

Case Studies

Goals met, and independently proven

Aviation

A major UK airport eliminated recurring waterborne pathogens in four days

Years of chemical dosing had failed. Bioload fell from 600 to 0 cfu/g across every test point, confirmed by an accredited laboratory, and held on routine maintenance dosing.

Wastewater