Throughout the years, Blennerhassett residents have continually relied on Pinnacle Security to satisfy their home security needs. Since 2001 we have been installing security alarms nationwide. Security systems for homes, apartments, and businesses are Pinnacle Security.s specialty Our high quality, two-way monitoring provides direct contact with our monitoring facilities and acts as a constant companion before, during, and after an emergency. Get what you've been looking for and let Pinnacle Security preserve what means most to you.