You should check to make sure that your contractor is licensed through the state. Generally, the state handles all licensing requirements for general contractors. You should check with a local building inspector to see if there are any additional local licenses or certifications required for garage door installers in your area.

Try to get a quote on the job before you hire anyone. If you can, try to get a quote from many different contractors before you settle on someone. This is important for two reasons. First, you will be much more likely to get a great price if you have a lot of contractors to choose from. Second, you will be able to financially plan for the bill when it finally comes.

Try to find contractors with access to a preferred garage door dealer or who have doors on hand. If a contractor has a preferred dealer, then he or she may get a better deal on the garage door. This savings in materials will get passed on to you in the form of a lower bill. If the contractor has the doors on hand, then you may not even have to pay any additional costs for the door. You will have to work this out with the contractor.