If you decide that your company does not have the skills to handle your social media marketing on its own, then you need to hire a firm to do the work for you. If you're hiring a firm to take care of their social marketing, you need to make sure you are not overpaying for quality. There are plenty of social media firms who will offer you quality work that will get you results. Just because they offer quality results does not mean that they can overcharge you for the services, but if you don't look at several different companies that is exactly what they will do.
When you begin negotiating with a service, you need to have a figure in mind that you will be spending on their service. The worst thing you can possibly do is going to a negotiation without a number in your head. If you do not know what their services normally cost, or what the going rate is, then you could never possibly hope to get a good deal. Make sure to ask plenty of questions about this social media company before you decide to go with their services.
By questions I mean what kind of work have they done in the past, what services do they specialize in, and can you expect good results from them. Make sure you pay attention to every detail of what the companies say to you, and make sure that they are not avoiding questions or giving you non-answers.
You want an honest company that is going to do honest work for you, and if you feel like a company is hiding information from you then you're better off finding somebody else. social media firms come in all shapes and sizes, some are very good at what they do, and some don't have a clue. Be wary when you are picking out your new service, and make sure that you make the right decision for your company.