At some older properties and houses, you will sometimes find that there are two underground gas pipes.
The reason for this is that, even though the gas in the area has been upgraded to high-pressure gas, there will still be a low or medium pressure gas pipe, laid underground within the ground of the property.
And whilst it probably won’t be connected to the actual gas main anymore, it can still be a pain to deal with and cause interference with whatever works are happening at the property.
If we can, we always try to make the effort to locate these older pipes, even though they are not in use anymore. This way the landscaper or fencing contractor or plumber or electrician or whomever it is that is doing the works at the property can be aware of exactly where all the pipes onsite are and can then either remove the old ones or try and work around them.