Home › Top 4 Electrician in Castle Rock, Colorado Find best Electrician in Castle Rock, Colorado, with all necessary contact information, including addresses, phone numbers, working hours, map locations, and website links. Butler Electric LLC US, Castle Rock, CO 801044833 Front St Unit B162 Mile High Electricians US, Castle Rock, CO 801094275 Broken Hill Dr Green Frontier Electric Ltd US, Castle Rock, CO 801091539 Bennet Mountain Rd Grasmick Electric Corp. US, Castle Rock, CO 80104525 S Gilbert St