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  • home-security

    Sleep Safe and Sound

    Peace of mind, knowing that your family is safe and secure.

  • home-security

    Residential or Commercial Alarm Systems

    Over 40 Years of Experience

  • 3

    Customer Service is Important

    Don't become a number to a large company.

Nationwide Alarm Systems for Quality and Unbeatable Service

Let Uncle Harry answer your questions

Choosing the right alarm system and monitoring company can be a difficult task. With so many offers and types of burglar and fire alarms, which is right for you? Don't feel alone or pressured. Ask Unlcle Harry and you won't be sorry. With over forty years experience, Uncle Harry, will give you honest advice, never overselling or compromising on quality to make a dollar. Don't become a number to a large provider.

Nationwide Alarm Systems is a small family owned business that prides itself on superior customer service. Looking for a security systems in Philadelphia and surrounding areas. Nationwide installs home security systems in Bucks County, Montgomery County, New Jersey, and Delaware. Have a problem with your alarm? Call 24/7 and recieve prompt service. Don't fall for the $99 install and wait days or weeks without service when you have an issue. Call Uncle Harry today and speak with someone who understands what you are looking for in an alarm company.

Easily contact Uncle Harry for a free survey or just to ask a question. We value your privacy.

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Service Areas

  • Entire Delaware Valley
  • Berks County
  • Bucks County
  • Chester County
  • Delaware County
  • Montgomery County
  • Philadelphia County
  • New Castle County
  • Cecil County
  • Burlington County
  • Camden County
  • Cumberland County
  • Gloucester County
  • Salem County


  • I have been with Nationwide Alarm for over 10 years now and never had a problem. Harry is very helpful and brings us up to date with the latest in the business. by Nino B.

  • Uncle Harry is old school business. Honest and full of integrity, he stands by his work. by Loraine S.


Feature List

  • No High Pressure Salesman
  • Honest and Knowledgable
  • No Obligation Advice
  • Highest Quality Alarm Systems