Right of access to land/property

[adrianm]

LPG is supplied to my house and seven others in a private estate by an independent company (not a public utility) and I am in dispute with them over their charges. As a result it claims I owe them in the region of £400. Rather than address the problem, a representative from the company today entered my land and disconnected the supply by removing a section of piping from the meter through which the gas travels into the property. The meter is theirs, although no contract was ever signed to that effect either by me individually or the management company formed by the residents that looks after the estate.
However, they did not have my permission to come onto my land to access the meter neither did they have a warrant to do so.
Please can you advise me where I stand.

[factor-fiction]

I'm not sure they need a warrant. As I understand it there is nothing to stop me walking into your garden. If the piping is their property I would have thought they have the right to disconnect it.
They will probably argue that this was covered by their terms and conditions and you had effectively agreed to these by accepting the service, and you may well have had leaflets/bills containing details of their terms.
Having said that, I'm surprised they haven't tried to resolve the situation first- have they never responded to your bill query?