Sales: (717) 541-0212 | Service: (717) 219-7017

The Story of Knight Security

Knight Security Systems, Inc. was started in 1979 by Robert E. Maley - a former Pennsylvania State Police Trooper as an independent, owner operated security company. With many years in law enforcement he was interested in helping people secure their homes and businesses with electronic security systems.

Serving Central PA for 35 Years.



In 2000 the business was taken over by Keith E. Maley who has worked full time for the company since graduating from school. Since taking over the family business KSSI has expanded their product line to meet the increasing product demands of their loyal customers.



Our clients choose us because they want the best. We specialize in the design, installation and service of security, fire, camera systems, and access control and many other low voltage residential products such as intercom systems, whole house audio and home theater systems.



Our company employs and serves local residents and businesses around Harrisburg and Central PA . We are committed to supporting our region. Locally owned and operated, we’re big enough to do the job, but small enough to care about the details of your system. 

We design, install, and service all types of security systems.

Knight Security starts out two steps ahead of other life and property protection companies. We design, install and service virtually any type of system you might need from fire, security and alarm, to access control, video security and central station monitoring.

Our user friendly systems are specifically designed with high quality equipment for simple operation and low maintenance requirements. So if you are looking for a professional, first class company to provide your security and low voltage needs Knight Security Systems Inc. is your answer.

What Our Customers Are Saying

5 star alarm srvice

"Extraordinary Experience"

“Our experience with Knight Security has been extraordinary since we made the switch. They always respond to any problem we have within the hour and fix it immediately, they always have the equipment to do the job right the first time.

We never have to worry about the security of our businesses anymore. Keith and his staff are very knowledgeable with what they are doing and keep us up to date on the newest technology to secure all of our businesses.”

Erick Carter
Dockside Willies, Dukes Bar & Grill, and Rock Bass Grill

"Admirable Standard"

“Knight Security sets an admirable standard for security systems companies.  In my ten years working with Knight, I have interacted with a knowledgeable and helpful office support team. The security monitoring department has been consistently competent and dedicated to my protection. The techs who come out to install or check my system are skilled and good communicators on their area of expertise. All of the above factors have provided for my on-going association and satisfaction with this locally owned and operated business.”

Harrisburg, PA

"Pleasant and Knowledgeable"

“Knight Security Systems, Inc., offers the most comprehensive and the most affordable security system to meet your home and
business needs. The master technicians and the pleasant and knowledgeable staff of Knight continue to give me excellent service and peace of mind. When I call during regular business hours, I speak to a person, not a machine. That is why I have satisfaction guaranteed!!!”

Harrisburg, PA

About Us

From intrusion to fire and video to access control, Knight Security Systems, Inc. offers the industry’s most advanced technologies and products, combined with technical support and customer service that’s second to none. 

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5879 Avis Lane
Harrisburg, PA 17112-1606 | Phone: 

Office: (717) 541-0212
PA State License #040745

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