It is very important to be able to reach the hosting company if your website begins experiencing problems.
The best hosting support one can hope for is available twenty-four hours a day, seven days a week.
Most companies know this, so take their stated hours with a grain of salt. Always spot check the companies with email at random times to see if they really have someone available to help 24/7.
How much control does the hosting company offer webmasters? It is inconvenient to work through customer service every time to modify a password or to change email addresses. Be sure hosting companies offer some form of a control panel accompanying hosting.