From preliminary enquiry to GDN adoption. We manage the full gas main installation for residential schemes of 2 to 200+ plots under one PM and one contract.
Every gas connection follows a clear, auditable sequence. Here is exactly what happens at each stage.
Before any formal application is made, USP carries out a preliminary feasibility check against the GDN network records. This establishes the location of the nearest relevant gas main, whether it has sufficient capacity to support the proposed development load, and whether any mains reinforcement will be required. In the West Midlands, the relevant GDN is Cadent Gas. For developments near the Cadent boundary, we also check the coverage of Wales & West Utilities. This early check determines whether a standard connection is achievable or whether a bespoke quotation will be required.
Once feasibility is confirmed, USP submits the formal connection application to the GDN on your behalf. For housing developments, this includes the site layout, number of dwellings, anticipated gas load per property, and proposed meter positions. The GDN issues a connection offer setting out the Point of Connection, non-contestable charges, and design requirements. USP then prepares the contestable design: detailed engineering drawings for the new PE gas main, individual service connections to each plot, and pressure test requirements. These drawings are submitted for GDN approval before groundworks begin.
With design approval in place, USP mobilises its GIRS-accredited installation team. The gas main (typically 63mm or 90mm PE80 SDR11 pipe for residential schemes) is installed in a shared utilities trench alongside water and, where possible, electricity ducting. Individual 32mm PE service pipes are run from the new main to each plot meter position, electrofusion jointed and pressure tested in accordance with IGE/TD/3. Meter boxes are installed to the correct specification and orientation at each plot boundary. Non-compliant meter boxes will result in an abortive visit and a programme delay.
Once installation is complete, USP carries out formal pressure testing of both the main and individual services. Test results are recorded on GDN-standard documentation and submitted alongside as-built drawings, welder qualification records, and all quality documentation. The GDN inspection team then verify the site before the infrastructure is formally adopted. Adoption triggers the issue of MPRN numbers for each plot, required before a gas supplier can arrange meter installation. USP coordinates the MPRN issue process to ensure numbers are available when each plot is ready.
Every gas main we install is pressure tested, GDN inspected, and formally adopted before handover. These are real USP projects, not stock photos.
The critical parameters that govern every residential gas main installation.
End-to-end capability from a single GIRS-accredited provider.
Every gas connection 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 gas connection plan within 24 hours.
Prefer to talk? Call 024 7542 6505 for immediate service.