If you are already doing business with a financial institution then it makes the most sense to go to them when you need a loan. You already have an established relationship and they know what type of person you are. You have already won half the battle when you use a financial institution you already do business with.

You will likely be able to negotiate with them better because they do not want to lose the business (of your custom) that they already have. You can also use your current good standing with them to prove you are reliable and trustworthy.

It often makes a lot of sense to go to someone you already do business with rather than strike up a whole new business relationship. Talk to your financial institution and see what kind of terms they can offer you.