Squintz and others in Harford County. I am looking to obtain a license for low voltage in Harford and surrounding counties for low voltage work. I worked 2 years for a Alarm and low voltage company and have worked the last four years for Verizon. Does anybody have any contact numbers for Harford county. I have sent some emails and have received no response. thank you in advance for your time. and I look forward to using this great site.