We Value Relationships Since 1978, Security Plumbing & Heating has been working with clients to solve difficult plumbing issues in the Denver Metro Area. We are licensed and insured, and we aren’t just any Denver plumbing contractor or Denver plumber. By focusing on quality service and being responsive to our clients needs, we’ve grown into being one of the largest commercial plumbing service companies in Colorado. We focus on tough commercial and residential plumbing problems others can’t fix.