Often people don't seek out roofing estimates because it is more of a grudge purchase. However, all roofing companies are not created equal, and likewise, roofing estimates are not equal. Some companies have several people working, some only a few. The more people, the faster the work, and the higher the price of the roofing job. You should always gather several roofing estimates so that you can determine not only how long the job will take, but also the roofing cost. Both are important points, and you should gather plenty of estimates to determine which company is right for you.