About Us

Home and business security systems

Keystone Security Systems

Service backed by over 25 years of experience.

The Keystone Story

We have been helping to protect homes and business in the Rochester area since 2006. John Romero, owner of Keystone Security Systems, has been working in the security industry for more than 25 years and has NFPA and Life Safety expertise. John has designed, serviced and installed security systems in most sectors, including commercial, residential, industrial, government and education. Keystone Security System is certified, licensed and locally- owned and operated business.

Unlike many security companies, when you secure you home or business with Keystone, you own your security system. No misleading costly pay-as-you-go forever for your “free” system installation. Just honest pricing and local service from a company right here in Rochester.

All of our installations are personally supervised by John and follow all standards and codes—no substandard components, no unknown subcontractors…just personal service and a sincere commitment to taking care of each of our client’s unique safety and security needs.


The Keystone Difference

Our Services

Our services run deep and are backed by over ten years of experience.

Service and Quality are Key

Most of all, our commitment to customer service is unlike any other security company. As proof, we offer a 100% customer satisfaction guarantee! What does that mean to you? You get security that works as intended, you pay what we promise and you can rest assured!

Effective security need not cost more. At Keystone Security Systems, we use security equipment of unparalleled quality. We are proud to feature Honeywell components in our system installations. Our installations adhere to all national standards with attention to manufacturers’ specifications and quality workmanship requirements. We are proud to put our name on every installation.


John Romero of Keystone Security Systems clearly stood out as a person who was more interested to assess our needs and provide the correct equipment to match our needs and budget. John explained the reasons why in laymen’s terms well in advance so that a sound, confident decision could be made. John proved himself to possess the necessary technical knowledge as it relates to the equipment and how each piece delivered its results to the user (us).

Warren DiedrickSecretary / Facilities Maintenance ManagerThe Conservation Club of Brockport

The Keystone Difference

Home alarm and business security systems

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25 years in the alarm and security business

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Authorized Honeywell security dealer

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Monitoring as low as $19.99 per month

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Superior service, local support