A trustworthy Denver bathroom remodeler will hold all of the necessary licenses to operate in your county. This contractor may also have sought additional membership in home remodeling organizations, such as the National Kitchen & Bath Association. Check these credentials by contacting your county clerk to confirm a license or check with the organization to confirm membership. You may also want to look for a remodeler that has maintained a business for multiple years, has an established address, phone number, and website. Remodelers with several recommendations and highly rated reviews on sites, like Angie's List are also considered reliable contractors.