Turn the channel into a conversion path
Reach is not the goal. A path from attention to enquiry is. Three things usually get neglected here.
Fix the profile before you fix the posts
The profile is your shopfront. A clear bio that says what you do and where you are, a working booking or contact link, a pinned post that answers the obvious question, and accurate opening hours and location for the local algorithm. Many London accounts lose enquiries simply because the route to contact is buried or broken.
Treat the DMs as a sales channel
For hospitality and local services especially, a large share of enquiries arrive through direct messages and comments. They need answering quickly, in a human tone, with a clear next step. A reply within the hour during business times is a reasonable standard, and saved responses for common questions keep it fast without sounding robotic.
Connect social to the rest of your marketing
Social rarely closes a considered sale on its own. It opens the relationship. The enquiries it generates should land somewhere you can follow up: a booking system, a form, an email list, a CRM. When social, web and paid work together rather than in isolation, the channel starts paying for itself.