Does the company carry insurance and is the coverage adequate for your project?
This is the second most important question you need to ask a contractor. Home owners have been financially harmed by uninsured or inadequately insured contractors.
Home owners must automatically reject any contractor without proper and adequate insurance.
A contractor should show you a Certificate of Insurance for Comprehensive Liability, Worker's Compensation, and Completed Operations Insurance that protects you in the event of an accident or provides financial coverage for a failed project. The insurance should be adequate to cover the property.
Contractors may also carry other forms of insurance, such as health insurance and vehicle insurance. Do not be confused by these policies. Do not allow a contractor to pass them off as proof of "contractors" insurance.