Keystone Alarm Company, one of the industry leaders for alarms.  They are one of Pennsylvania’s premier security systems and provider of alarms.  Keystone has been a local family-owned business in the community for more than 40 years.  They provide top quality alarms for both residential and commercial.  So whether for your business or your home, Keystone can help you with a wide variety of alarms.  They offer fire and burglar alarms, as well as surveillance and card access systems.  Keystone uses state of the art technology and equipment to ensure you are provided with the maximum protection.  Whether you are looking for a new system or to upgrade from an old one, Keystone Alarm Company can provide you with the best alarms. For more information, contact them at 215-457-4646 or at