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Protecting What Matters Most with the Best Fire and Security Solutions

Ranked among the top 100 alarm companies in the country, Yarnell Security Systems serves more than 9,000 residential and commercial customers in central Pennsylvania.

Yarnell Security Systems has also been named the number-one security service in the area by Reader’s Choice voters for over 20 consecutive years.

With a team of 35 employees and no subcontractors, Yarnell Security Systems is committed to protecting homes and businesses with around-the-clock service and a personal touch. Yarnell, the oldest locally owned alarm company in Lancaster County, is a UL-listed installation and service company.

No job is too big or too small for our experts–from houses and apartments to warehouses, churches, office buildings, schools, and shopping centers.

Yarnell also provides turnkey system design, installation, and service, so we can cater to your exact needs and budget. Whether you need a personal emergency response system for seniors, or a system that monitors everything from burglary and fire to frozen pipes and water damage, Yarnell can provide the solution.

For commercial customers, Yarnell can tailor additional products and services for your business, such as access control and single- and multi-camera video surveillance systems.