Pipeline / sewer / tunnelling contractors

Directional drilling and underground boring specialist. Techniques utilised include: impact mole boring, for ducts up to 180mm in diameter, suitable for soft cohesive ground; impact pipe ramming, for steel sleeve ducts from 150mm to1650mm, suitable for most grounds including granular material; and diesel or hydraulically driven equipment for

BAM Nuttall capability spans the design and construction of bored and NATM tunnels for all utility applications, including water transmission mains, sewerage systems and cable carrying tunnels. Recent projects have included the D&C Portsmouth-Havant wastewater/sludge flow transfer tunnel for Southern Water and the Kentish Town cable tunnel for the

Undertakes general civil engineering construction works, including tunnelling schemes for drainage, water distribution, storage, service ducts and access requirements. Tunnels have been constructed with internal diameters ranging from 1200 to 4570mm, and in both straight drives and curves as severe as 8.5m radius. Pipes including sewers, gas and

Dredging and marine solutions contractor also offering immersed tube tunnel construction, marine drilling and pipeline installation

Undertakes all forms of civil engineering contracts. Water and wastewater experience includes water mains, meter installation, sewers, pumping stations, and water and sewage treatment works. Open trench and directional drilling techniques are undertaken. Work is also undertaken on roads, car parks and hardstandings

Specialises in pipefreezing services for industrial, commercial, civil engineering and municipal clients. Liquid nitrogen is used to isolate pipework of 15-600mm diameter, removing the need for system draining whilst repairs are carried out. Isolated sections can withstand pressures of up to 4000psi. Also offers hot tapping, shrink fitting

Civil, mechanical and electrical engineering contractor specialising in the water supply and wastewater industries. Specialist contractor for the design, supply and installation of vacuum sewerage systems in locations proving difficult for conventional gravity sewers as a result of flat or difficult ground conditions. Laying and construction of

Underground cable ducting and pipe installation specialist. No-dig techniques such as impact moling, directional drilling and augering, pipe bursting, steel pipe ramming and hydraulic pipe bursting are used. Work is undertaken for the installation of gas, water, electricity and telecommunication supplies, for both domestic and industrial

Utilities and civil engineering contractor specialising in the construction of distribution mains and services pipelines, including large diameter cross country projects for water, oil and gas industries. Specialist division offers trenchless tunnelling, hydraulic mains cracking and directional drilling

Installs cross-country pipelines using narrow trench or trenchless techniques to minimise disruption and reinstatement costs. Also installs methane gas control and utilisation systems for landfill sites, and undertakes sportsturf drainage and construction

Constructs, installs and buries oil, gas and sewage treatment works dispersal pipelines. Pipes and cables can be installed using no dig directional drilling. Also undertakes coastal protection projects, port maintenance and development, underwater blasting and contaminated ground treatment

Undertakes internal and external pipeline cleaning and descaling; high pressure water jetting; CCTV inspection; pipeline and sewer renovation; joint, test and sealing service; no-dig installation of services from 50 to 1500mm dia.; slip-lining; pipe bursting; shaft sinking; pressure pointing; and manhole sealing

Sewer and water mains replacement, renovation and rehabilitation contractor. Offers a range of services based on trenchless technology. Sewer repair services include a liner system which has WRc approved status. Guided boring and conventional open cut techniques are offered for new pipelines. The replacement of pipes using pipe bursting

Flowcheck perform hydraulic surveys of pipelines. Our engineers take accurate pressure and flow measurements within a pipe system to determine its hydraulic characteritics. From the results we can produce pump curves, system curves and calculate Ks values for rising mains. We also provide hot tapping (under pressure drilling) services. Hot tapping

Offers drain and sewer renovation services