iws water hygiene

What iws water hygiene does

IWS Water Hygiene (legal entity Integrated Water Services Ltd, company number 05283349) is a UK-based specialist water hygiene and legionella control services provider founded in 2004, operating as part of South Staffordshire Plc and, from January 2026, subject to a sale agreement to andwis Group. The company delivers Legionella risk assessments, water system monitoring, temperature monitoring, water sampling, chemical dosing and water treatment, remedial works (including cold water storage tank replacement and TMV servicing), and training services to UK social housing providers, local authorities, facilities management companies and healthcare and leisure operators. It supports an estimated 2,000 customers across 42,000 sites nationwide through regional service centres in Walsall (HQ), Bristol, Heywood and Altham, with 24/7 engineer coverage.

The business runs on a recurring compliance-services model sold through direct enterprise field sales and public procurement frameworks (Procurement Assist, Procure Public, NHMF Frameworx, Welsh Procurement Alliance ASC1). Its proprietary Online Report Tracker (ORT) web portal, backed by handheld PDA data capture and a Remote Temperature Monitoring System, stores site-specific asset data and provides real-time alerts on out-of-specification temperatures. UKAS accreditation to ISO/IEC 17020:2012 for Legionella Risk Assessments, ISO 45001:2018 and ISO 9001 certifications and LCA registration underpin the regulatory positioning.

Revenue is generated primarily from multi-year subscription-style monitoring contracts (L8/HSG274 compliance), one-off risk assessments, project-based water treatment and remedial works, and ancillary training. The sister division IWS M&E secures significant mechanical and electrical engineering work for UK water utilities, including AMP7/AMP8 framework positions with United Utilities, Affinity Water, Northumbrian Water, Wessex Water and Portsmouth Water, but this revenue is reported separately from the Water Hygiene division.

Name

iws water hygiene

Legal name

Integrated Water Services Ltd

Website

https://integrated-water.co.uk

Company type

Private

Founded year

2004

Operating status

Operating

Short description

IWS Water Hygiene is a UK-based specialist water hygiene and legionella control services provider serving social housing providers, local authorities and facilities managers through recurring monitoring, risk assessment, water treatment and remedial works contracts.

Ownership category

akta.pro rank

Product category

Water Hygiene & Compliance Services

NAICS

Water, Sewage and Other Systems (2213), Water Supply and Irrigation Systems (22131), Remediation Services (562910)

SIC

Sanitary Services (4950), Services-Testing Laboratories (8734), Electric, Gas & Sanitary Services (4900)

akta.pro primary industry

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

akta.pro secondary industries

Legionella Risk Assessment & Compliance Audits (BPABAJAA), Water Sampling, Testing & Laboratory Analysis (Legionella/Microbiology) (BPABAJAB), Monitoring & Control (Dosing Systems, Remote Monitoring, Sensors) (BPABAJAK), Water Safety Plans, Training & Documentation (Logbooks, SOPs) (BPABAJAL), Domestic Hot & Cold Water System Hygiene (Potable Water) (BPABAJAD), Water, Wastewater & Stormwater Compliance (BPAHAJAJ), Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems) (IMAHAEAJ)

Keywords

• Water hygiene services
• Legionella control services
• Water treatment services
• Legionella risk assessment
• Mechanical electrical services

Headquarters

HQ city

Walsall

HQ country

United Kingdom

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Water Hygiene Monitoring Contracts: Recurring monitoring and compliance service contracts covering temperature monitoring, water sampling, system inspections and risk assessments for commercial and residential properties. Delivered nationwide through regionally-based service centres on 24/7 basis.
2. Legionella Risk Assessments: One-time and periodic Legionella risk assessments for buildings and water systems. Includes desktop audits and physical site inspections.
3. Water Treatment Services: Chemical dosing, water treatment programmes including chlorine dioxide dosing, copper/silver ionisation, chemical treatment for cooling towers, boilers, closed systems, and glycol dosing for chilled systems.
4. Remedial Works and Plant Equipment: Remedial works including cold water storage tank replacement/refurbishment, TMV installation and servicing, shower head cleaning and descaling, and general plant and equipment maintenance.
5. Training Services: Water hygiene awareness training services for client personnel.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Integrated Water Services Ltd (IWS) provides specialist water hygiene, legionella control, water treatment, risk assessment, and mechanical & electrical services to commercial, residential, and public sector properties throughout the United Kingdom on a 24/7 basis. The offering spans Legionella Risk Assessments (UKAS accredited), temperature and water system monitoring, chemical water treatment programmes, remedial works such as tank replacement and TMV servicing, remote temperature monitoring, and water hygiene awareness training. Services are delivered via a nationwide network of regional service centres and supported by a proprietary web-based Online Report Tracker (ORT) portal that captures engineer-collected field data via handheld PDA devices.

Differentiator

Problem solved

Functional benefit

Products and services

• Legionella Risk Assessments Full and comprehensive Legionella Risk Assessment forming the foundation of a properly managed Water Hygiene Control Regime for commercial, residential and public sector buildings. Delivered by IWS Water Hygiene as one of a handful of UK providers accredited to ISO/IEC 17020:2012.
• Water System Monitoring Recurring water system monitoring covering temperature monitoring, water sampling, system inspections and risk assessments for commercial and residential properties. Delivered by regionally-based engineers using handheld PDA technology synchronised with the IWS Online Report Tracker (ORT).
• Water Treatment Services Chemical water treatment programmes including chlorine dioxide dosing, copper/silver ionisation, chemical treatment for cooling towers and boilers, closed system treatment, and glycol dosing for chilled systems. ISO 9001 certified.
• Remedial Works Remedial works for water hygiene compliance including cold water storage tank replacement and refurbishment, TMV installation and servicing, shower head cleaning and descaling, and general plant and equipment maintenance.
• Remote Temperature Monitoring System Online portal providing a real-time global overview of water systems, with temperatures, system schematics, scheme of control and instant alerts to out-of-specification measurements. Complements traditional manual monitoring approaches.
• Cooling Tower Services Cooling tower water hygiene management including chemical treatment, cleaning and legionella control for cooling tower systems.
• Thermostatic Mixing Valve (TMV) Installation and Servicing Specialist installation and servicing of Thermostatic Mixing Valves (TMVs) as part of water hygiene compliance and remedial works.
• Shower Head Cleaning and Descaling Specialist cleaning and descaling of shower heads as part of legionella control and water hygiene maintenance programmes.
• Water Hygiene Awareness Training Water hygiene awareness training services for client personnel to build internal capability on legionella control and compliance obligations.
• Plant and Equipment Supply and Maintenance Supply, installation, inspection, testing and maintenance of water hygiene plant and equipment for buildings and estates.
• Online Services (Online Report Tracker Portal) Web-based client portal providing multi-user access to site and asset-specific water hygiene information, fed by handheld PDA devices used by engineers during on-site inspections and synchronised remotely with the host database.
• Mechanical & Electrical Services (IWS M&E) Mechanical, electrical, instrumentation and automation services for water utility infrastructure including pumping station upgrades, process treatment works, electrical services frameworks, mechanical on-site services, and pump efficiency/optimisation projects.

Quantifiable outcome

• 2,198,958 kWh annual energy savings and 466.90T CO2 emissions reduced for Anglian Water
• +4 more outcomes

Named customers17 records

Segments6 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

19 partnerships are on record, tiered core and minor.

• andwis GroupcoreStrategic or Co-development Partner · 28 January 2026IWS Water Hygiene was sold to andwis Group, a leading provider of technical and compliance services in the UK, and parent company of Rock Compliance. IWS Water Hygiene continues to deliver its water hygiene services portfolio nationwide as part of the group's Environmental Services offering.
• Portsmouth WatercoreStrategic or Co-development Partner · 31 October 2025IWS M&E entered a new strategic partnership with Portsmouth Water as one of five contractors supporting its AMP8 programme investing £377 million. IWS M&E and Bridges will drive the non-infrastructure programme including M&E upgrades, energy efficiency schemes focused on nitrates removal and UV.
• BridgescoreStrategic or Co-development Partner · 31 October 2025IWS M&E is partnered with Bridges (civil engineering specialist) as part of Portsmouth Water's AMP8 programme. Bridges and IWS M&E are delivering the non-infrastructure works together, combining national expertise with local delivery and modern methods of construction.
• YTL Construction (UK)coreImplementation/ SI/ Consulting Partner · 31 October 2025IWS M&E works with YTL Construction (UK) on Wessex Water's M&E Minor Works Framework, with YTL as the primary framework holder and IWS M&E as appointed specialist M&E contractor.
• Wessex WatercoreStrategic or Co-development Partner · 5 June 2025IWS M&E was appointed to Wessex Water's M&E Minor Works Framework (Lot 1) working with YTL Construction (UK). The framework supports Wessex Water's AMP8 programme with works including pumping station upgrades, environmental monitoring, asset decommissioning and automation works across the South West.
• Wilo Group / Wilo UKcoreTechnology or Integration · 6 December 2024IWS M&E collaborated with Wilo (one of the world's leading premium suppliers of pumps and pump systems) on the Water Security and Optimisation project. 260 upgraded borehole pumps were installed using Wilo products including Ceram CT coating and optimised K-series pumps, resulting in major energy savings and CO2 reduction. Project won Wilo Ecolution Awards 2024 and Pump Industry Awards 2025.
• G StowminorStrategic or Co-development Partner · 6 December 2024G Stow (sister company within South Staffordshire Plc, specialising in borehole drilling and maintenance) made significant contributions to the borehole pump optimisation project alongside IWS M&E and Wilo, winning the Wilo Ecolution Awards 2024.
• Northumbrian Water Group (NWG)coreStrategic or Co-development Partner · 30 May 2024IWS M&E was appointed to NWG's Wider Ecosystem – Lot C2 – Treatment and Civils Framework as one of 33 contractors delivering NWG's £3.6bn AMP8 capital investment programme. IWS M&E works with NWG's in-house IDS team delivering lean and agile short-term schemes across Northumbrian Water and Essex & Suffolk Water areas.
• Procurement AssistminorChannel Partner/ Reseller/ Distributor · 20 May 2024IWS Water Hygiene was awarded contracts through Procurement Assist's Water Hygiene Framework, enabling access to housing association clients including whg Housing Association.
• Procure PublicminorChannel Partner/ Reseller/ Distributor · 20 May 2024IWS Water Hygiene was awarded contracts through Procure Public's framework agreement, enabling access to public sector clients including Hightown Housing Association.
• TrustMarkminorGTM or Marketing Partner · 4 April 2024IWS M&E achieved TrustMark registration (government-endorsed quality scheme) after completing audit for ECA membership, providing clients assurance of high quality technical competence and customer service.
• Welsh Procurement Alliance (LHC) / Asset Safety and Compliance Framework (ASC1)minorChannel Partner/ Reseller/ Distributor · 1 March 2024IWS Water Hygiene was appointed to ASC1 Asset Safety and Compliance Framework in association with the Welsh Procurement Alliance, covering specialist testing, treatment and management of Legionella and other water-borne pathogens for public sector bodies.
• British Constructional Steelwork Association (BCSA)minorGTM or Marketing Partner · 27 February 2024IWS M&E became a registered member of the BCSA, gaining access to promotion and marketing opportunities, training and networking events, resources and specialist information for construction steelwork compliance under the Building Safety Act 2022.
• Electrical Contractors' Association (ECA)minorGTM or Marketing Partner · 17 January 2024IWS M&E became a registered member of the ECA, gaining access to expert guidance, member tools and specialist schemes to support business growth and resilience. ECA membership recognises businesses meeting the highest industry standards in electrical and electrotechnical design, installation, inspection, testing and monitoring.
• National Housing Maintenance Forum (NHMF) / FrameworxminorChannel Partner/ Reseller/ Distributor · 15 May 2023IWS Water Hygiene was appointed to Frameworx Compliance Consultancy framework in association with NHMF, a UK-wide framework providing social housing providers access to pre-qualified contractors for compliance services.
• The Pump CentreminorGTM or Marketing Partner · 27 April 2023IWS M&E became a member of the Pump Centre, gaining access to technical expertise, networking opportunities, industry updates, training courses and events. The Pump Centre promotes best practice in the UK water and wastewater industries.
• United UtilitiescoreStrategic or Co-development Partner · 21 February 2023IWS M&E won a place on United Utilities' electrical services framework for a minimum of three years with the option of a further five-year extension. Services include reactive and planned electrical services, servicing, overhaul, repair, inspection, fault diagnosis, and new equipment design, supply, installation, testing and commissioning.
• United UtilitiescoreStrategic or Co-development Partner · 4 April 2022IWS M&E won place on United Utilities' mechanical on-site services framework (2-year with 2-year optional extension), valued at approximately £15m. Supports reactive and planned mechanical services, repairs, maintenance, and inspections of mechanical installations across United Utilities' operational area.
• Affinity WatercoreStrategic or Co-development Partner · 18 May 2021IWS M&E was one of four framework partners providing civil and mechanical and electrical engineering for more than 100 projects including process treatment and pumping stations under Affinity Water's AMP7 capital investment programme. Framework extended from previous AMP6 engagement of 6 years.

Scale indicators10 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Rock Compliance: Sister compliance business under andwis Group providing fire risk, asbestos and wider EHS compliance services to UK housing associations and public sector buyers — directly comparable customer base and procurement framework model following IWS's 2026 acquisition by andwis.
• Water Hygiene Centre: UK specialist water hygiene and legionella consultancy offering risk assessments, training and monitoring to social housing and FM clients — directly overlapping with IWS's core service offering and target segments.
• Phinna Group: UK water hygiene, legionella control and treatment services provider serving housing associations, NHS trusts and commercial property — direct competitor for L8/HSG274 compliance monitoring contracts.

Broad incumbents

• Lanes Group: Large UK water and drainage services group offering utility M&E, sewer maintenance and water hygiene capabilities — broader portfolio incumbent competing with IWS M&E on utility AMP frameworks and water hygiene on housing portfolios.
• Morrison Water Services: Major UK water-sector infrastructure services provider delivering design, build and maintain for water utilities — competes with IWS M&E on AMP water utility framework tenders across the UK.
• Hydrosave: South Staffordshire Plc sister company providing water efficiency, leakage reduction and flow monitoring services to UK utilities — adjacent service line from former parent targeting same utility customers with non-overlapping technology.
• MWH Treatment: Water-sector process and MEICA delivery arm within the Stantec group, delivering AMP5-AMP8 capital programmes for UK water companies — established incumbent on water utility framework programmes competing with IWS M&E.
• RPS Group (Water Services): International consultancy with a sizeable UK water and environmental compliance practice covering risk assessment, monitoring and EHS consulting — broad incumbent offering overlapping water hygiene compliance services.

Others

• Severn Trent Services: Operating services arm of Severn Trent providing outsourced water and wastewater operational services to UK utilities and adjacent markets — adjacent operational services comparison rather than head-to-head water-hygiene competitor.

Emerging players

• Claret Civil Engineering: Niche civil engineering firm partnered with IWS M&E on Northumbrian Water's Syleham project — partial overlap with IWS's treatment works and civils service lines for UK water utility projects.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/integrated-water-services-limited

Revenue estimate

Valuation estimate

Number of profiles

Profiles13 records

Subsidiaries1 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 iws water hygiene