Look at how much space the web host will allow you to use. If you will be using a lot of multimedia elements or having multiple pages on your website you will most likely be needing a lot of space. Before paying for a web host, ensure the amount of space they offer will fit your needs.
You should be able to contact your host quickly and in a variety of ways when you encounter an issue. Web host that offer a variety of contact options are your best bet for getting good customer support. This will reduce the amount of trouble if something bad happens.
Avoid paying for web hosting space that you actually do not need. Some plans will entice you into contracts that cost more by affording you unlimited space – but do you actually need this? Remember that you can always upgrade later as your needs increase. Unless you are a large company or are engaging in eCommerce, you can probably get by with 10MB or less. Switch web hosts if an outage lasts for more than a day. Even if the host explains why the server is down, the most likely reason is that the host did not invest enough into back up plans as far as outages are concerned. Any truly professional web hosts will have ensured that outages will be short and infrequent.