Gas Pipeline Installation Contractors in Pembrokeshire & West Wales
LS Civil Engineering Ltd undertakes the installation of carbon steel high pressure gas pipelines, including buried and above-ground systems. Carbon steel provides the strength and durability required for demanding gas pipeline applications.
Every installation is delivered with careful planning, strict quality control and a strong focus on safety, compliance and long-term performance.
High Pressure Gas Pipeline Installation
Our services include the installation of carbon steel gas pipelines for industrial, commercial, utility and infrastructure projects throughout Pembrokeshire and West Wales.
- Pipe preparation
- Welding coordination
- Coating protection
- Trenching and excavation
- Pipe laying
- Valve installation
- Tie-ins and connections
- Backfilling and reinstatement
Pressure Testing & Commissioning
Testing is a critical part of every high-pressure pipeline installation. We provide pressure testing and commissioning support to verify the integrity, safety and performance of installed pipework systems.
Our testing services can include hydrostatic pressure testing, leak testing, visual inspections, joint checks, flushing, swabbing, dewatering, drying and preparation for final handover.
Cathodic Protection Support
For buried carbon steel pipelines, we can support the installation of cathodic protection systems to help prevent external corrosion and extend the service life of underground steel pipework.
This can include sacrificial anodes, test posts, insulating joints, bonding cables, reference electrodes and monitoring points installed in line with project requirements and specialist design specifications.
Experienced Gas Pipeline Installation Contractors
From excavation and pipe installation through to testing, commissioning and installation documentation, LS Civil Engineering Ltd provides dependable gas pipeline installation services across Pembrokeshire and West Wales.

