If the fence is monitored, the responsible site contact should arrange any necessary communication with the monitoring provider before testing. Agree who confirms the normal operating arrangement when work is finished. An alarm notification, gate fault and energiser fault can require different investigations; describe what was observed rather than assigning a cause from the first message received.
For planned electric fence installation or an extension, include the intended finished boundary and any gate or building changes. A property team comparing quotations should give each contractor the same requirement. Ask how existing equipment will be incorporated and what assessment is included. Retain the resulting documents with the property records, including any limits affecting the work, so future maintenance does not begin from an incomplete description.