
C&M Kiernan Pipelines Construction Ltd is your go-to partner for pipeline
services across commercial, public sector, and industrial infrastructure projects.

C&M Kiernan Pipelines Construction Ltd is your go-to partner for pipeline services across commercial, public sector, and industrial infrastructure projects.
Professional, Reliable Pipeline Utilities for Your Project
Professional, Reliable Pipeline Utilities
for Your Project
We install and maintain water, gas and utilities with precision, safety, and scale, no shortcuts, just expert delivery from groundworks to commissioning.
Whether you’re delivering a new business park, hospital extension, or University, we provide the specialist people and pipeline utilities to match.
Gas Mains Installation
From MDPE to welded steel, we handle full gas pipework installation – including live hot tapping and gas pipework commissioning for all commercial applications.


Water Mains
Complete water main installation, testing, commissioning, and reinstatement. We handle PE, barrier, and ductile iron with advanced pressure testing and logging.
Fire Protection Mains
We install fire hydrants and sprinkler mains to LPCB/FM standards, including all isolation/ control valves.


Leak Detection & Inspection
Using tracer gas, acoustic tech and in-pipe cameras, we’re a trusted leak detection company in the UK, known for finding and fixing leaks fast.
Electrical Installations
From cable trenches to feeder pillar installation, we deliver durable electrical ducting projects that support modern infrastructure.


Decarbonisation & Civils
We support heat pump installation projects with civils, acoustic fencing, substation bases, and pre-insulated PEx pipework networks.
Why Choose C&M Kiernan?
We Know the Ground
From impact moling to directional drilling, we choose the right technique for minimal disruption and maximum efficiency.
Gas Safe Registered
All operatives are certified to work on live gas mains and meters, backed by IGEM standards.
Built for Scale
We handle major commercial and industrial schemes with multiple teams, in-house plant, and national reach.
Live, Not Later
Through under pressure drilling, bypasses, and flow stops, we keep your systems running while we work.
Data-Driven Quality
We don’t just test – we log, analyse, and report, giving clients and authorities the proof they need of pressure-tested mains.
No Strangers to Working ‘Under Pressure’
No Strangers to Working ‘Under Pressure’
Whether it’s a new university building, school, hospital upgrade or warehouse.
We know how to work in large project environments, coordinating with M&E contractors, principal contractors, and multi-trade teams. Our scope, certifications, and experience make us the ideal contractors for complex pipeline utilities projects.
Got a Project in the Pipeline?
Ready to talk trench depths, meter installs or flow switchovers?
Simply give us a call or leave your name and a few details to get started.