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Water Main, Sewer System & Related Project Construction in the UK Industry Data and Analysis
The UK's extensive water main and sewer system requires regular maintenance and renewals. The water industry regulator, Ofwat, commissions investment in the water and wastewater infrastructure network through five-year Asset Management Plan (AMP) frameworks. AMP8 is the current iteration of Ofwat's investment cycle, with a planned £104 billion to be pumped into UK utilities over the five years through 2029-30, a big step up from the £51 billion invested during AMP7 over the five years through 2024-25. The uptick in investment for AMP8 offers water infrastructure contractors considerable revenue opportunities through the maintenance and replacement of the ageing water network.
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What's included in this industry analysis
IBISWorld's research coverage on the Water Main, Sewer System & Related Project Construction industry in the United Kingdom includes market sizing, forecasting, data and analysis from 2015-2030. The most recent publication was released November 2025.
About this industry
What's this industry report about?
The Water Main, Sewer System & Related Project Construction industry in the United Kingdom operates under the SIC industry code F42.210. The industry includes contractors that build distribution lines to transport fluids and construct the buildings and structures to support these systems. This includes the construction of long-distance and urban pipelines, water mains, sewer systems, irrigation systems and pumping stations. Related terms covered in the Water Main, Sewer System & Related Project Construction industry in the United Kingdom include asset management plan (amp), combined sewer and water companies.
What's included in this industry?
Products and services covered in Water Main, Sewer System & Related Project Construction industry in the United Kingdom include Sewerage infrastructure construction, Water infrastructure construction and Maintenance works.
What companies are included in this industry?
Companies covered in the Water Main, Sewer System & Related Project Construction industry in the United Kingdom include MWH Treatment Ltd, Clancy Docwra Ltd and Morgan Sindall Group plc.
Performance
What's included in the Performance chapter?
The Performance chapter covers detailed analysis, datasets, detailed current performance, sources of volatility and an outlook with forecasts for the Water Main, Sewer System & Related Project Construction industry in the United Kingdom.
Questions answered in this chapter include what's driving current industry performance, what influences industry volatility, how do successful businesses overcome volatility, what's driving the industry outlook. This analysis is supported with data and statistics on industry revenues, costs, profits, businesses and employees.
Products & Markets
What's included in the Products and Markets chapter?
The Products and Markets chapter covers detailed products and service segmentation and analysis of major markets for the for the Water Main, Sewer System & Related Project Construction industry in the United Kingdom.
Questions answered in this chapter include how are the industry's products and services performing, what are innovations in industry products and services, what products or services do successful businesses offer and what's influencing demand from the industry's markets. This includes data and statistics on industry revenues by product and service segmentation and major markets.
Geographic Breakdown
What's included in the Geographic Breakdown chapter?
The Geographic Breakdown chapter covers detailed analysis and datasets on regional performance of the Water Main, Sewer System & Related Project Construction industry in the United Kingdom.
Questions answered in this chapter include where are industry businesses located and how do businesses use location to their advantage. This includes data and statistics on industry revenues by location.
Competitive Forces
What's included in the Competitive Forces chapter?
The Competitive Forces chapter covers the concentration, barriers to entry and supplier and buyer profiles in the Water Main, Sewer System & Related Project Construction industry in the United Kingdom. This includes data and statistics on industry market share concentration, barriers to entry, substitute products and buyer & supplier power.
Questions answered in this chapter include what impacts the industry's market share concentration, how do successful businesses handle concentration, what challenges do potential industry entrants face, how can potential entrants overcome barriers to entry, what are substitutes for industry services, how do successful businesses compete with substitutes and what power do buyers and suppliers have over the industry and how do successful businesses manage buyer & supplier power.
Companies
What's included in the Companies chapter?
The Companies chapter covers Key Takeaways, Market Share and Companies in the Water Main, Sewer System & Related Project Construction industry in the United Kingdom. This includes data and analysis on companies operating in the industry that hold a market share greater than 5%.
Questions answered in this chapter include what companies have a meaningful market share and how each company is performing.
External Environment
What's included in the External Environment chapter?
The External Environment chapter covers Key Takeaways, External Drivers, Regulation & Policy and Assistance in the Water Main, Sewer System & Related Project Construction industry in the United Kingdom. This includes data and statistics on factors impacting industry revenue such as economic indicators, regulation, policy and assistance programs.
Questions answered in this chapter include what demographic and macroeconomic factors impact the industry, what regulations impact the industry, what assistance is available to this industry.
Financial Benchmarks
What's included in the Financial Benchmarks chapter?
The Financial Benchmarks chapter covers Key Takeaways, Cost Structure, Financial Ratios, Valuation Multiples and Key Ratios in the Water Main, Sewer System & Related Project Construction industry in the United Kingdom. This includes financial data and statistics on industry performance including key cost inputs, profitability, key financial ratios and enterprise value multiples.
Questions answered in this chapter include what trends impact industry costs and how financial ratios have changed overtime.
Industry Data
What's included in the Industry Data chapter?
The Industry Data chapter includes 10 years of historical data with 5 years of forecast data covering statistics like revenue, industry value add, establishments, enterprises, employment and wages in the Water Main, Sewer System & Related Project Construction industry in the United Kingdom.
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Frequently Asked Questions
What is the market size of the Water Main, Sewer System & Related Project Construction industry in the United Kingdom in 2026?
The market size of the Water Main, Sewer System & Related Project Construction industry in the United Kingdom is £3.7bn in 2026.
How many businesses are there in the Water Main, Sewer System & Related Project Construction industry in the United Kingdom in 2025?
There are 562 businesses in the Water Main, Sewer System & Related Project Construction industry in the United Kingdom, which has grown at a CAGR of 2.0 % between 2020 and 2025.
How may import tariffs affect the Water Main, Sewer System & Related Project Construction industry in the United Kingdom?
The Water Main, Sewer System & Related Project Construction industry in the United Kingdom is unlikely to be materially impacted by import tariffs with imports accounting for a low share of industry revenue.
How may export tariffs affect the Water Main, Sewer System & Related Project Construction industry in the United Kingdom?
The Water Main, Sewer System & Related Project Construction industry in the United Kingdom is unlikely to be materially impacted by export tariffs with exports accounting for a low share of industry revenue.
Has the Water Main, Sewer System & Related Project Construction industry in the United Kingdom grown or declined over the past 5 years?
The market size of the Water Main, Sewer System & Related Project Construction industry in the United Kingdom has been growing at a CAGR of 2.8 % between 2020 and 2025.
What is the forecast growth of the Water Main, Sewer System & Related Project Construction industry in the United Kingdom over the next 5 years?
Over the next five years, the Water Main, Sewer System & Related Project Construction industry in the United Kingdom is expected to grow.
What are the biggest companies in the Water Main, Sewer System & Related Project Construction industry in the United Kingdom?
The biggest companies operating in the Water Main, Sewer System & Related Project Construction industry in the United Kingdom are MWH Treatment Ltd, Clancy Docwra Ltd and Morgan Sindall Group plc
What does the Water Main, Sewer System & Related Project Construction industry in the United Kingdom include?
Sewerage infrastructure construction and Water infrastructure construction are part of the Water Main, Sewer System & Related Project Construction industry in the United Kingdom.
Which companies have the highest market share in the Water Main, Sewer System & Related Project Construction industry in the United Kingdom?
The company holding the most market share in the Water Main, Sewer System & Related Project Construction industry in the United Kingdom is MWH Treatment Ltd.
How competitive is the Water Main, Sewer System & Related Project Construction industry in the United Kingdom?
The level of competition is high and steady in the Water Main, Sewer System & Related Project Construction industry in the United Kingdom.
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