Accredited delivery capacity that meets the standard first time
Mains installation, under-pressure drilling and new connections delivered to water industry specification, with pressure testing, chlorination, sampling and certification included rather than subcontracted on.
Burst main or major leakage?Call 0800 520 0043
The sector
You are assessing capability, not buying a service.
A water company or NAV operator engaging a contractor is answering a narrower question than most clients: can this organisation work on our network, to our specification, and produce the evidence at the end without us managing it?
Cascade holds LRQA WIRS accreditation — the Water Industry Registration Scheme, independently assessed — and is WIRS-accredited to undertake eligible self-lay and contestable works within our accredited scope. Operatives working on potable systems hold water industry hygiene cards, and we are accredited for mains and service connections up to and above 355mm.
Testing, chlorination, bacteriological sampling and certification are carried out in-house as part of the work, so an asset arrives with its records rather than with a note promising them later.
What you need from us
Where we take work off your programme.
- 01Installation, repair and renewal capacity
Water Mains
New distribution mains, burst response, planned replacement and new service connections, delivered to water industry specification by a WIRS accredited team.Accredited to 355mm and aboveUnder-pressure drilling24/7 burst responseRead more - 02Developer-led networks reaching adoption
Self-Lay & NAV
Design, installation and adoption of developer-led networks, with experience delivering alongside NAV operators including Albion Water.Accredited Self-Lay ProviderAdoption records completeNAV experienceRead more - 03Commissioning capacity, including on others’ pipework
Pressure Testing & Certification
Hydrostatic testing, chlorination, flushing, bacteriological sampling and certification — available as a standalone service on pipework installed by others.BS EN 805 principlesHygiene card operativesAvailable standaloneRead more - 04Detection and repair on the network
Leakage Services
Acoustic detection and correlation across mains and supply pipes, with repair on location and 24/7 attendance for bursts and major leakage.Acoustic correlationRepair on locationRound-the-clock attendanceRead more
Why Cascade
The things an accreditation manager checks.
- 01
LRQA WIRS accredited
The Water Industry Registration Scheme is independently assessed. We are WIRS-accredited to undertake eligible self-lay and contestable works within our accredited scope.
- 02
Hygiene handled as competence
Operatives working on potable systems hold water industry hygiene cards, and materials used carry approval for contact with drinking water.
- 03
Commissioning is not subcontracted
Testing, chlorination, sampling and certification are carried out in-house, so a failed test is corrected on the same visit rather than written up and handed back.
- 04
Utility pre-qualification in place
Achilles UVDB Silver Plus, Achilles Network membership, SafeContractor, SMAS Worksafe, Acclaim and Constructionline Gold.
- 05
Thirty years on water infrastructure
Three decades of mains and service work across London, Hertfordshire and the surrounding counties — including on live networks.
Utility enquiry
Tell us the scheme and the specification.
Scope, specification and programme are enough for us to confirm capability and capacity. Accreditation certificates and pre-qualification documents are available on request.
Or reach us directly
Burst main or major leak? The freephone line is answered 24 hours a day.