A struck gas main isn’t like other utility strikes. Where damaging an electrical cable or water pipe causes disruption and cost, a gas main strike carries the added risk of a gas escape, creating a genuine safety hazard for anyone on or near the site until it’s brought under control. This is what makes locating buried gas mains before excavation, drilling or piling work particularly important, not just for the project timeline, but for the safety of everyone involved.

Our surveyors use a combination of electromagnetic detection and GPR to trace and map gas mains alongside other buried infrastructure, including electrical cables and water mains, identifying obstructions, culverts and routes across the survey area. Because gas pipework can be metallic or non-metallic depending on age and material, relying on a single detection method risks missing certain sections entirely, which is why we combine techniques rather than defaulting to one.

Subvision Surveys is Safe Contractor, CHAS and Construction Line certified, alongside our SSIP and ISO accreditation, giving clients and site managers confidence that our team meets the standards required to work safely around live gas infrastructure. With over 25 years of industry experience, we’ve carried out gas main surveys on major national projects, including the Millennium Dome, as well as sites of every size across the UK.

Locating gas mains accurately before work begins helps avoid utility interference, unplanned excavation stoppages, and the significant cost and safety risk of a gas strike. Where a project also involves internal works, such as fitting a kitchen or knocking through a wall close to where a gas supply enters a building, our team can carry out a Cables in a Wall Survey alongside the buried gas main survey, giving you a complete picture of both underground and in-wall services before any drilling or excavation begins.

Contact Subvision Surveys today to discuss your buried gas main survey requirements, or speak to one of our experts on 0333 920 942.