Our affordable burglar alarm monitoring and fire alarm monitoring and exceptional customer service sets us apart from other security providers. We offer complete security solutions to protect your home or business from modern security threats. By choosing Shearer Security Devices you will receive the best service in the industry. Our custom tailored fire alarm systems, burglar alarm systems and surveillance systems are designed to meet your specific security requirements.

Contact Details

  City Harrisburg, PA
  Zip Code 17111
  Address 5450 Derry Street
  Phone Number (717) 564-2230

Products & Services

Fire and Burglar Alarm Systems, Video Surveillance, and Access Control

Fire and Burglar Alarm Systems, Video Surveillance, and Access Control

Residential and Commercial Fire and Burglar Alarm Systems Installed and Maintained, Access Control Systems and Video Surveillance Cameras. Shearer Security has been voted the Best in Harrisburg for the last 9 years. Showroom and service facilities conveniently located at 5450 Derry Street, Harrisburg, PA for fast professional service and economical rates. Call 1-866-Shearer (1-866-743-2434) or (717) 564-2230.

Customer Testimonials

Shearer is a great company! We updated and purchased our security system from Shearer. From the initial visit through the installation, Mr.Shearer, Steve, and another gentleman were, kind and very knowledgeable and professional. Our older home presented some issues with the transmission of the signals between floors. The service tech, Louis, came the day the problem surfaced. He worked tirelessly for almost 3 hours until the system was working flawlessly again. No charge since it was still under warranty! We have had 3 other security systems over the past 21 years. Wish we'd have started with Shearer!

Fist class service from the start.
From educating us as to what system is best for us to the well organized, friendly install technician.
Thank you!!!

Every time I have needed Shearer Security they have been there as quickly as humanly possible. They have opened numerous car & truck doors for us. I have keys made at their facility. They change locks on almost everything. They offer safety supplies and self defense supplies. You can never have too many TASERS!!! They come in all shapes and sizes. PLUS they offer security systems for every budget! I can actually see how many buttons people have on their shirts if I want to. I love this honest family owned and operated business. Thank you for keeping many families and businesses more secure in our community!!!

My business used Shearer Security for ten plus years and i highly recommend them, both for my office security system and for safes that I purchased there. Very nice people to work with and dependable too!

Out front door lock broke at night when we needed to get our baby in bed. The guy came very quickly, got us in really fast and fixed the lock right away. Very professional, very nice and very reasonably priced.

They extremely courteous and professional. They did the job asked in no more than ten minutes. Was very pleased and will recommend to anyone that needs key work or security for residential or professional reasons.

Called up Shearers because we lost the keys to our roof carrier. Told us to come right down and after 3 attempts and hand milling the key, Tyler got it open!! Saved the day as we are leaving in less than 24 hours. Thank you, Thank you!! Great service, great patience and a very reasonable price! Will highly recommend!!!

Had a problem with our front door, not an alarm issue- which caused issues with entering. Tech came out, rush hour on a weekend evening and got us fixed up quickly. Can't say enough about the professional service we received!


Shearer Security Devices Harrisburg - Amazing 5 Star Review by Susanne M

Shearer Security Devices in Harrisburg Pennsylvania - Customer Review by Susanne M.

Photo Book

Social Activity

Here are our safe moving technicians at it again. Another successful safe delivery.
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Watch our auto tech decode a worn high security key and cut a new one to factory specifications on our new state-of-the-art machine. stay tuned for more videos on what this machine can do. Call us for your lost and or worn high security car keys. 717-564-2230
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Social Media Safety Tips 1. As much as you may love to share your exciting upcoming trip, you might want to postpone your posts until you return. You are allowing people to know you will not be home, and your valuables are unprotected. 2. Oh how we love
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Need to purchase a safe? Come visit our showroom on Derry Street. We can help you choose the right safe for your valuables. Not only do we sell safes but we also deliver them.
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We're hiring! Apply now.
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How safe is your home from invasion by criminals? Do you feel secure when you are home alone? Is it as safe as it can be? Have your taken the necessary preventative or safety countermeasures to insure the safety of your house and family? Take the quiz
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From Our Website

In business since 1988, Shearer Lock, Safe, & Security is Central Pennsylvania's premier locksmith. We're the area's leader in automotive locksmithing, safe sales and service, and security hardware. We're also the largest locksmith in Central PA, with eight fully equipped service vehicles and a full-time staff of 15 people. In 2009, we were selected as a Medeco Security Center, which is a collection of only 100 locksmiths across the country chosen for their ability to provide sound security advice, top-notch service, and genuine expertise from factory-trained personnel.

Not all security companies are created equal, and home alarm systems are not one-size-fits-all. At Shearer Lock, Safe, & Security, we professionally install residential alarm systems, home access control systems, home surveillance systems with remote access and smartphone compatibility, and more! Let us help you secure your home. We'll help you determine what type of security system is best for your family's needs. We carry GE Security products to provide you with state-of-the-art, world-class security.

Whether you've locked yourself out of the building or a filing cabinet, rely on Shearer Lock, Safe, & Security to get you back inside in no time. In business since 1988, we offer the latest in home and business security and quality locksmith services.

When you're looking to keep your property secure, consider a video surveillance system! The professionals at Shearer Lock, Safe, & Security can install anywhere from one to hundreds of cameras so you can keep an eye on things even when you're not there. You can monitor your surveillance cameras from anywhere in the world using a smartphone or computer. If you currently have a system using tapes or low image quality, rely on us to provide new and improved security solutions. Our systems use digital recording devices that can record for months at a time, with no need to change tapes.

With an access control system, you can limit access to your home or business with the touch of a button! At Shearer Lock, Safe, & Security, we can install an access panel that lets you keep track of who enters your property, control when they can enter, and also restrict entrance. Using the latest technology in home and business security, your security is in your hands with an access control system. You can choose to protect one door or an entire complex. With a larger system, each person is provided with a key fob or access card that can open some or all doors.

Fire and theft cost businesses more than 5 billion dollars each year. Additionally, most employers are shocked to find out that 60% of employees have stolen from their employers. In both scenarios, your profits are slipping away. Installing a security system will allow you to leave your business each day knowing your building, records, and inventory are being protected. Count on Shearer Lock, Safe, & Security for security solutions that suit your needs! We've partnered with a number of security companies to bring you the best security devices on the market.