Wesslink can inspect the installation for which access and authority have been arranged, then explain defects and proposed repairs. If an outside section cannot be reached, ask for that limitation to be recorded. It is better to arrange the necessary access than to treat a view from inside the garden as a complete assessment of an inaccessible route.
For a public-park concern, contact the responsible park authority or manager. For your own fence, provide any previous certificates, repair descriptions and recent changes to gates or walls. These are separate enquiries even when they refer to the same nearby landmark. Keeping them distinct helps avoid a resident paying for work they are not authorised to commission.