What H2O Building Services does

H2O Building Services is a UK-based water cost reduction consultancy founded in 1997, headquartered in Wakefield, West Yorkshire, and operating across the United Kingdom. The company helps commercial businesses, multi-site operators, and public sector organisations reduce water expenditure through a suite of services including water audits, historical bill validation, underground and visible leak detection and repair, supplier switching in the deregulated English and Welsh market, water self-supply licensing, rainwater harvesting (via its Stormsaver partnership), borehole abstraction, and water recycling. The firm's underlying technology combines on-site engineering expertise with AMR-based automated meter reading, water flow data logging, and systematic billing analysis to identify overcharges, secure refunds, and reduce ongoing consumption.

The business operates a professional services model with multiple revenue streams: consultancy fees for audits and bill validation, project-based fees for leak detection and repair, hardware sales (water-saving devices such as showers, taps, and urinal flush controls), and revenue tied to supplier switching and self-supply advisory. A free initial water audit serves as the top-of-funnel entry point. GTM motion is enterprise-focused and consultative, combining direct field sales, an inside-sales function (0845 freephone line), a referral channel through energy management consultants and brokers, and thought-leadership marketing via a podcast and LinkedIn Live series hosted by Senior Partner Graham Mann. The company has co-founded SwitchWaterSupplier.com, the UK's first water retail procurement platform, and has adopted Ofwat's voluntary TPI Code of Conduct.

H2O claims to have saved commercial customers over £10 million in excess water supply and wastewater charges since inception and serves a diversified enterprise base that includes ASDA Stores, McDonald's Restaurants, Pizza Hut (~400 sites), David Lloyd Leisure (89 clubs, 150 swimming pools), Vue Cinemas, Wolseley UK, Jewson, RAC, River Island, and HC-One, alongside public-sector clients such as Nottingham City Council. Operations are founder-led, with Graham Mann (Senior Partner) and Nicky Mann (Head of Water Retail) as the named principals, and the company is privately held with no disclosed institutional investment.

Name

H2O Building Services

Legal name

H2O Building Services

Website

https://h2obuildingservices.co.uk

Company type

Private

Founded year

1997

Operating status

Operating

Headcount range

11–50 employees

Short description

H2O Building Services is a UK water cost reduction consultancy, founded 1997, that audits, validates, and reduces commercial water bills through leak detection, supplier switching, and efficiency services for enterprise and public sector clients.

Ownership category

akta.pro rank

Product category

Water Management Services

NAICS

Services to Buildings and Dwellings (5617), Plumbing, Heating, and Air-Conditioning Contractors (23822)

SIC

Services-To Dwellings & Other Buildings (7340)

akta.pro primary industry

Commercial & Customer-Side Loss Management (Service Lines, Premise Leaks, Customer Programs) (EUANAKAI)

akta.pro secondary industries

Third-Party Water Retailing & Managed Billing Services (outsourced billing, white-label retail operations) (EUANAIAL), Commercial/Residential Building Water Management & Leak Analytics Services (HSAHAGAK), Pipework, Calorifier & Heat Exchanger Descaling/Decontamination (BPABAJAI)

Keywords

• Water cost reduction
• Water bill validation
• Water leak detection
• Commercial water audits
• Water management consultancy

Headquarters

HQ city

Wakefield

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Water Audit and Consultancy Services: Professional consultancy services including water audits, bill validation, and water cost reduction analysis. Services include site surveys, consumption analysis, and strategic recommendations for reducing water costs.
2. Water Leak Detection and Repair: On-site solutions including detection and repair of water leaks, both visible and underground. Project management and finance arrangement for repairs.
3. Water System Installation Services: Supply and installation of water-saving devices including water-saving showers, taps, and urinal flush controls. Water recycling systems and effluent treatment solutions.
4. Alternative Water Supply Solutions: Abstraction of water from boreholes and rivers, and implementation of alternative water supplies for commercial properties.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

H2O Building Services is a UK water cost reduction consultancy that audits commercial water usage, validates water bills for overcharges/refunds, detects and repairs leaks (including underground leaks), and helps businesses switch water supplier or pursue self-supply in the deregulated English and Welsh water market. The firm supplements these core services with water-saving hardware installation, rainwater harvesting (with partner Stormsaver), water recycling, alternative water supplies via boreholes/river abstraction, and strategic water footprint/stewardship consulting.

Product overview

H2O Building Services is a UK-based water cost reduction consultancy offering a comprehensive suite of services for commercial water management. The company's portfolio centers on core services including water audits, bill validation, leak detection and repair, and water supplier switching. Supporting services include rainwater harvesting (via Stormsaver partnership), water recycling, wastewater management, trade effluent services, surface water drainage, and alternative water supply solutions such as boreholes. The company also provides strategic services including water footprint assessment, water stewardship, and water strategy development. All services are delivered by water engineering consultants with over 30 years of industry experience, targeting commercial businesses, public sector organizations, and multi-site operators across the UK.

Differentiator

Problem solved

Functional benefit

Brands

• SwitchWaterSupplier.com: A national water retail procurement platform connecting water retail companies, energy brokers, and customers for switching water supplier services.

Products and services

• Water Audits Comprehensive analysis of water usage across single or multiple commercial sites, including waste water and property drainage charge auditing, providing full visibility into where and how water is consumed.
• Water Bill Validation Historical billing analysis for commercial customers to ensure correct charges, identifying overcharges and arranging refunds from water retailers.
• Water Leak Detection Professional leak detection services for commercial premises using specialised equipment and techniques, including underground leak detection in hard-to-reach places, with bill analysis, full water audits and site confirmation.
• Water Leak Repairs Repair services for detected water leaks, leveraging over 20 years of industry experience to deliver quick and efficient fixes, including arrangement of project finance for repairs.
• Water Consultants / Water Management Consultants End-to-end consultation on commercial water usage and cost reduction strategies, from site surveys and bill validation through to project management and finance.
• Switch Water Supplier Advisory and execution services to help commercial customers switch water retailers in the deregulated English and Welsh water market to reduce costs.
• Water Self-Supply Licensing service enabling businesses to buy water and wastewater services direct from wholesalers and supply their own organisation, eliminating retail margin.
• Alternative Water Supplies (Off Grid Water Supply) Abstraction of water from boreholes and rivers as alternative water supply solutions, enabling businesses to reduce or eliminate regulated water bills through private water sources.
• Commercial Rainwater Harvesting Rainwater harvesting systems delivered in partnership with Stormsaver for commercial water storage and reuse.
• Water Recycling Systems Systems for recycling water, including effluent treatment and disposal solutions for commercial properties.
• Trade Effluent Management Management and cost reduction services for trade effluent charges and wastewater discharge for commercial customers.
• Surface Water Drainage Analysis and management of surface water charges and property drainage charges for commercial premises.
• Wastewater Management Analysis of wastewater bills and implementation of strategies to reduce wastewater costs for commercial customers.
• Public Sector Water Services Specialised water management and cost reduction services for public sector organisations, including water strategy, bill validation, surface water drainage and trade effluent management.
• AMR – Water Flow Data Logging Automated Meter Reading (AMR) technology providing web-based water monitoring and flow data logging, enabling real-time consumption tracking and proactive identification of water issues.
• English Water Retail Advisory Services helping businesses navigate the English water retail market post-2017 deregulation, including switching, self-supply and ongoing bill optimisation.
• Open Water Market Advisory Advisory services for businesses entering the open water retail market in England and Wales, including supplier selection and contract support.
• Water Strategy / Water Stewardship / Water Footprint Strategic water management planning, water footprint assessment across supply chains, and stewardship consulting for long-term sustainability and cost efficiency.
• Water Efficiency (Hardware Supply and Installation) Overall water efficiency improvements including supply and installation of water-saving devices such as showers, taps and urinal flush controls for commercial premises.
• SwitchWaterSupplier.com (Water Retail Procurement Platform) UK's first and only water retail procurement platform, bringing water retail companies, energy/utility brokers and customers together on a single platform for switching water suppliers, billing data correction and water savings; co-founded by Graham Mann and Tim Guest.

Quantifiable outcome

• Save businesses 30% on current water bills
• +3 more outcomes

Named customers11 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Three partnerships are on record, tiered core and minor.

• StormsavercoreStrategic or Co-development PartnerStormsaver is one of the country's leading providers of water storage equipment, specializing in rainwater harvesting and water storage strategies. H2O has a strong partnership with Stormsaver, combining their water storage expertise with H2O's wastewater analysis and cost reduction services to provide comprehensive water management solutions for clients.
• SwitchWaterSupplier.comcoreStrategic or Co-development PartnerH2O Building Services developed SwitchWaterSupplier.com as the UK's first and only water retail procurement platform. This venture brings water retail companies, energy and utility brokers, and customers together on a single platform for switching water suppliers, billing data correction, and water savings. Co-founded by Graham Mann and Tim Guest, targeting the £3 billion water retail market.
• MAGNA Science Centre SheffieldminorGTM or Marketing PartnerH2O Building Services signed a sponsorship supporting the MAGNA Science Centre. As part of the partnership, H2O will work on reducing water consumption at the venue which has over 100,000 annual visitors and impressive water features.

Scale indicators10 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Castle Water: Independent UK water retailer competing in the English and Scottish competitive markets; competes with H2O's switching, self-supply, and supplier-advisory services.
• SES Business Water: One of the licensed water retailers in the deregulated English market, overlapping with H2O's switching and supplier-selection services while also serving customers directly as a wholesaler-bought supplier.
• Inenco: Large UK utilities management consultancy that handles multi-utility procurement and bill validation, including water — a broader incumbent encroaching from the energy brokerage side of the market.
• Morrison Utility Services: Major UK utility infrastructure contractor that also provides water and wastewater services, including metering, leak detection, and operational support — overlapping with H2O's leak detection and AMR capabilities.
• Water Plus: UK water retailer serving commercial customers, addressing the same bill validation, switching, and cost-reduction needs that H2O's customers are seeking — an incumbent on the regulated side of H2O's value chain.
• Anglian Water Business: Retail arm of a major UK water utility serving business customers with supply, billing, and efficiency services — an incumbent competitor in commercial water cost management.

Regional players

• Wave Utilities: Welsh water retailer operating in the deregulated Welsh market, directly addressing the same self-supply, switching, and cost-reduction use cases H2O serves in Wales.

Emerging players

• Smartvatten: European water management SaaS provider offering consumption analytics, leak detection, and sustainability reporting — partial overlap with H2O's AMR and water stewardship services, but delivered as software rather than consultancy.

Direct peers

• WaterScan: UK-based water management consultancy that helps commercial customers reduce water costs through audits, bill validation, AMR, and leak detection — a direct and head-to-head competitor in the same niche as H2O Building Services.

Others

• Optima Energy Solutions: UK bill validation and multi-utility software partner of H2O; both thematic peers and enabling partners, since Optima's software threatens to automate the manual bill validation H2O currently delivers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/630717
• Xx.com/h2obuildingserv

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

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 H2O Building Services