Certified Provider
Fully Accredited & Committed to Safety
Every gas diversion we deliver meets the highest industry standards. Worker safety, public safety, environmental responsibility, and project compliance from planning to sign-off.
Permanent and temporary gas main diversions for developers, highways authorities, and principal contractors. Full GDN approval management and safe dig capability.
Every gas diversion follows a clear, auditable sequence. Here is exactly what happens at each stage.
Before any diversion design work can begin, the precise location, depth, and condition of the existing gas main must be established. USP carries out a desk study using GDN records, followed by electromagnetic detection surveys and, where the ground conditions or pipe proximity warrant it, vacuum excavation (suction excavation) to expose the pipe without risk of damage. Accurate as-found data at this stage is critical. Errors in assumed pipe position can cause abortive design work, programme delays, and in the worst case, unsafe working conditions on site.
A gas main diversion cannot proceed without a formal agreement with the GDN. USP prepares the diversion application, including the proposed new route, pipe size, material specification, and method of connection to the existing network. The GDN reviews the application, carries out its own network analysis, and issues an agreement setting out the non-contestable charges and technical requirements. Where the diversion crosses a public highway, NRSWA Section 50 or Section 171 licences may also be required. USP manages both the GDN agreement and the highways approval processes in parallel to protect the programme.
With GDN agreement and design approval in place, USP mobilises its GIRS-accredited installation team to install the new pipe route. All new pipework is electrofusion jointed, pressure tested in accordance with IGE/TD/3, and inspected before the GDN carries out the non-contestable live connection. Once the new route is live and supply has transferred, the redundant section of main is purged, decommissioned, and either left in situ (capped and recorded) or removed where the site conditions require it. All as-built drawings and pressure test records are submitted to the GDN as part of the adoption package.
On sites where continuous gas supply must be maintained during construction of the permanent diversion route, USP designs and installs a temporary above-ground pipeline to bridge the gap. Temporary pipelines are designed to GDN technical standards, require formal approval before installation, and are managed with the same rigour as permanent works. USP coordinates the cutover from temporary to permanent supply with minimum disruption to affected properties and integrates this with the overall construction programme.
The critical parameters that govern every gas main diversion and relocation.
End-to-end capability from a single GIRS-accredited provider.
Every gas diversion we deliver meets the highest industry standards. Worker safety, public safety, environmental responsibility, and project compliance from planning to sign-off.
50 Google Reviews
I contacted USP and within minutes had a chat with Justin who described exactly how the job would be done and provided a comprehensive quote including labour and materials and was able to start the work in just 7 days. Justin and his team were brilliant and did an amazing job. I can highly recommend USP.
Jack and Joel were absolutely amazing this morning and really put themselves out to dig a hole without having to dig another hole in my drive. More work for them but one happy customer.
From the initial quote through to work completion, Justin and his work partner were a mix of professional, knowledgeable, good-humoured, and clear in all explained (I felt an instant ease to agree to the work). The work itself was excellent and they left the place immaculate!
George and Jack come out today to move a gas meter. It wasn't a straightforward job, but they both took time to talk me through what they were doing and what the next steps are. Very friendly and polite and thought about the needs of our family.
Jack and George are great.
Bang on time, completed the work perfectly, no issues. Left the meter really neatly finished. Jack and Joel were very courteous and did a great job.
George and Jack turned up and did a first class job, very friendly and professional. Great job lads.
Jack and Joel were brilliant. Very polite, worked to my highest expectations. Left the area as clean and tidy, as was possible. And explained every step of the process to me, answering any questions I had.
Fantastic work from Jack and Johl.
Tell us about your project and we will send you a free, no-obligation diversion assessment within 24 hours.
Prefer to talk? Call 024 7542 6505 for immediate service.