HCS Water Treatment

What HCS Water Treatment does

HCS Water Treatment is a UK-based specialist water engineering company focused on legionella control, water safety compliance, and managed water-hygiene services. Founded in 2013 and headquartered in Glasgow, the company operates through four UK offices (Glasgow, Sellafield, Warrington, Northampton) with a nationwide field-engineering team available 24/7, 365 days per year. Named customers include NHS trusts (Perth Royal Infirmary, Glasgow Royal Infirmary), Whitbread (1,320+ buildings), City of Edinburgh Council (418 properties), Aldi, B&Q, Premier Inn, Ministry of Justice, Sodexo, and Mitie.

The service portfolio is split into two lines. Water Treatment Services covers legionella risk assessments, cooling tower monitoring and treatment, closed water treatment, chemical supplies, dosing system installation/maintenance, side-stream filtration, and the ARMOR suite (Hydrosphere System Cleaning, Dosing Filter Pots, Hevasure Analytical). Water Hygiene Services covers monitoring, cleaning and disinfection, micro-bio chemical analysis, water remedial projects, TMV installation/maintenance, APT testing, and a subscription-based Remote Temperature Monitoring service. Delivery is supported by two integrated technology platforms: the ZetaSafe compliance dashboard (real-time compliance status, instant reporting, alerts) and Fieldmotion (scheduling and job management).

Revenue is generated through annual enterprise multi-site contracts, managed-service agreements, project-based fees, and monthly remote-monitoring subscriptions, with quote-based pricing tailored to site count and scope. The company was acquired by Premier Technical Services Group (PTSG) in 2021 and merged with Total Environmental Compliance in 2025 to form PTSG Water Treatment, consolidating sixty years of combined expertise under the wider PTSG specialist-services portfolio.

Name

HCS Water Treatment

Legal name

HCS Water Treatment Ltd

Website

https://hcswatertreatment.com

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

11–50 employees

Short description

HCS Water Treatment is a UK-based specialist water engineering company providing legionella control, water hygiene, and compliance services to enterprise and public-sector clients including NHS, Whitbread, Aldi, B&Q, and government estates, supported by ZetaSafe and Fieldmotion technology platforms.

Ownership category

akta.pro rank

Product category

Water Treatment Services

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (23822), Remediation Services (562910)

SIC

Services-Testing Laboratories (8734), Sanitary Services (4950)

akta.pro primary industry

Water, Air Quality & Environmental Hygiene (Legionella/IAQ) (BPABAAAO)

akta.pro secondary industries

Legionella Risk Assessment & Compliance Audits (BPABAJAA), Cooling Tower & Evaporative Condenser Water Treatment (BPABAJAC), Water Sampling, Testing & Laboratory Analysis (Legionella/Microbiology) (BPABAJAB), Monitoring & Control (Dosing Systems, Remote Monitoring, Sensors) (BPABAJAK), Water Safety Plans, Training & Documentation (Logbooks, SOPs) (BPABAJAL), System Cleaning, Flushing & Commissioning (Pre-commission/Refurb) (BPABAJAG), Water Quality, Legionella & Plumbing Safety Programs (EDAEAKAC)

Keywords

• Legionella control services
• Water treatment chemicals
• Cooling tower treatment
• Water hygiene monitoring
• Building water compliance

Headquarters

HQ city

Glasgow

HQ country

United Kingdom

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Supply Chain, Infrastructure

Revenue model

1. Water Treatment Services: Recurring and project-based water treatment services including legionella risk assessments, cooling tower monitoring and treatment, closed water treatment, chemical supplies, and installation/maintenance of dosing systems.
2. Water Hygiene Services: Ongoing compliance services including water hygiene monitoring, cleaning and disinfection, micro and bio chemical analysis, water remedial projects, TMV installation/maintenance, and APT testing.
3. Remote Monitoring: Subscription-based remote temperature monitoring service providing continuous oversight and compliance reporting with real-time alerting capabilities.
4. ARMOR Service Suite: Advanced water treatment solutions with cost reduction guarantees (up to 20% cost savings), including system cleaning, dosing equipment, and analytical monitoring services.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

HCS Water Treatment is a UK specialist water engineering company that delivers legionella control, water hygiene, and water treatment services for commercial, public-sector, healthcare, hospitality, retail, education, nuclear, and data-centre building estates. Its two main service lines are Water Treatment Services (Legionella Risk Assessments, Cooling Tower Monitoring and Treatment, Closed Water Treatment, Chemical Supplies, Chemical Dosing System installation and maintenance, Side Stream Filtration, and the ARMOR service suite) and Water Hygiene Services (Water Hygiene and Monitoring, Cleaning and Disinfection, Micro and Bio Chemical Analysis, Water Remedial Projects, TMV Installation and Maintenance, Remote Temperature Monitoring, and APT Testing). Services are delivered by a nationwide field engineer team, with compliance visibility provided through the ZetaSafe dashboard and Fieldmotion scheduling platform.

Product overview

HCS Water Treatment is a specialist water engineering company offering a comprehensive portfolio of water treatment and hygiene services. The core offering consists of two main service categories: Water Treatment Services (Legionella Risk Assessment, Cooling Tower Monitoring and Treatment, Closed Water Treatment, Chemical Supplies, Chemical Dosing Systems Installation/Maintenance, Side Stream Filtration, and the ARMOR service suite) and Water Hygiene Services (Water Hygiene and Monitoring, Cleaning and Disinfection, Micro and Bio Chemical Analysis, Water Remedial Projects, TMV Installation and Maintenance, Remote Monitoring, and APT Testing). The company's service delivery is supported by technology platforms including the ZetaSafe Dashboard for compliance management and FieldMotion for field scheduling. The ARMOR suite represents an add-on service package combining Hydrosphere System Cleaning, Dosing Filter Pots, and Hevasure Analytical monitoring. The company operates nationwide from offices in Glasgow, Sellafield, Warrington, and Northampton.

Differentiator

Problem solved

Functional benefit

Brands

• ARMOR: A cutting-edge service suite by HCS Water Treatment designed to transform water treatment across industries including data centres, rail networks, and hospitals. ARMOR encompasses Hydrosphere System Cleaning, Dosing Filter Pots, and Hevasure Analytical services.

Products and services

• Legionella Risk Assessment Comprehensive risk assessment of water systems identifying hazards related to Legionella, corrosion, scaling, and other issues, with actionable mitigation recommendations. For building owners, facilities teams, and compliance officers.
• Cooling Tower Monitoring and Treatment Solutions protecting building water systems from health and safety risks associated with corrosion, scaling, fouling, and microbial contamination including Legionella in cooling towers.
• Closed Water Treatment Highly efficient and sustainable closed-loop water management solutions (ENWA closed system treatment) to prevent corrosion, scaling, and microbiological growth.
• Chemical Supplies Range of high-quality chemicals — water treatment chemicals, cleaning agents, and disinfectants — for industrial and commercial water systems.
• Installation and Maintenance of Chemical Dosing Systems Installation and ongoing maintenance of chemical dosing systems with custom design based on flow rates, chemical properties, and compliance requirements.
• ARMOR Service Suite Add-on service suite combining Hydrosphere System Cleaning (eco-friendly cleaning), Dosing Filter Pots (water quality management), and Hevasure Analytical (real-time monitoring and early issue detection) for data centres, rail networks, and hospitals. Targets up to 20% operational cost reduction.
• Side Stream Filtration Continuous side stream filtration for cooling water systems removing suspended solids and impurities to reduce fouling and extend equipment lifespan.
• Water Hygiene and Monitoring Comprehensive monitoring programmes assessing water quality parameters — pH, temperature, conductivity, microbiological content — with regular sampling, testing, and reporting.
• Cleaning and Disinfection Expert cleaning and disinfection of cooling tower systems and closed water circuits, removing contaminants and eliminating harmful microorganisms.
• Micro and Bio Chemical Analysis Laboratory micro and bio chemical analysis to identify potential issues, monitor water quality, and ensure compliance.
• Water Remedial Projects Remediation of existing water-system issues including refurbishing cooling towers, upgrading filtration systems, and rectifying contamination.
• TMV Installation and Maintenance Thermostatic Mixing Valve (TMV) installation and maintenance — inspection, testing, calibration, repair, and replacement — to ensure compliance and proper functioning.
• Remote Temperature Monitoring Subscription-based remote temperature monitoring using telemetry and data analysis providing continuous oversight, real-time insights, optimisation of water systems, and SMS/email alerting capabilities.
• APT Testing Asbestos Plumber Testing (APT) services ensuring compliance for individuals working with asbestos-containing materials.

Quantifiable outcome

• 20% cost reduction achievable with ARMOR service suite
• +4 more outcomes

Named customers10 records

Segments8 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature4 records

Partnerships

Three partnerships are on record, tiered core.

• Premier Technical Services Group Ltd (PTSG)coreStrategic or Co-development Partner · 1 January 2021In 2021, HCS Water Treatment became part of PTSG, a leading niche specialist service provider delivering 170 specialist services to over 30,000 customers across all industry sectors. This partnership provides access to broader service capabilities and cross-selling opportunities within the PTSG portfolio while maintaining HCS's specialist water treatment focus.
• ZetaSafecoreTechnology or IntegrationTechnology integration partner providing the ZetaSafe compliance dashboard for real-time monitoring, instant reports, and detailed compliance insights. HCS uses ZetaSafe to deliver personalised compliance dashboards to clients, enabling at-a-glance compliance status monitoring.
• FieldmotioncoreTechnology or IntegrationScheduling and job management software integration partner. Fieldmotion works with ZetaSafe to plan and manage risk assessments, planned maintenance, and reactive works with user-friendly scheduling, real-time job status updates, and contract job management.

Scale indicators6 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• Suez Water UK: UK arm of global environmental services group with water treatment and compliance offerings; broad incumbent with portfolio of services overlapping HCS's water hygiene and treatment value proposition.
• Nalco Water (Ecolab): Global water treatment and process chemistry provider with industrial cooling, boiler, and hygiene programs; competes in the larger end of the market while HCS operates in mid-market and compliance-focused work.
• Marlowe plc: UK-listed group consolidating specialist water treatment, hygiene and compliance businesses (including WCS and Legend); competes in the same end markets at a portfolio level rather than as a single specialist brand.
• Veolia Water Technologies: Global water services and technology provider with a UK footprint spanning treatment, hygiene, and digital monitoring; broad incumbent competing for larger industrial and municipal water contracts.

Direct peers

• Phlorum: UK-based specialist in water hygiene, Legionella control and water treatment with a similar focus on compliance-driven services for commercial, healthcare, and public-sector clients.
• WCS Group: UK specialist in water treatment, legionella control, and water hygiene services for commercial and public-sector estates; directly comparable in service mix (risk assessments, monitoring, remedial works) and enterprise customer base.
• Legend Group: UK provider of water hygiene, legionella compliance, and water treatment services to facilities, healthcare and hospitality; overlaps almost entirely with HCS on core services and target segments.
• Water Hygiene Centre: Specialist UK water hygiene and legionella control consultancy and service provider, with comparable offerings in risk assessments, monitoring, and remedial works across multi-site estates.
• Cenergist: UK water hygiene and treatment specialist serving healthcare, facilities management, and commercial clients; overlaps with HCS on risk assessments, disinfection, and ongoing monitoring services.
• Hydro-X Water Treatment: UK water treatment and hygiene company offering Legionella control, closed system treatment, and chemical dosing; directly comparable on service portfolio and target customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/hcs-water-treatment
• Xx.com/hcswaterhygiene

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about HCS Water Treatment