TMH Security is a Thomas Heffernan Company

Owned and Operated by a retired Police Lieutenant From the Detroit Area.

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Michigan’s #1 Security Services Provider

TMH Security is Michigan’s top provider of professional security services. We offer:

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Armed and Unarmed Security Officers

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Mobile Patrol Services

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CCTV Monitoring and Alarm Response

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Trusted Security for Every Sector

Our services are trusted by:

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    Industrial and Manufacturing Facilities

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    Commercial Properties

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    Local and Federal Governments

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    Residential Communities

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    Retail Establishments

Executive Protection & Escort Services

We specialize in:

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Executive Protection with Forward Routing

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Armed Escort Services

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Protection for Executive, Entertainment, Film, Automotive, and Diplomatic clients

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Core Services Provided

  • Loss Prevention Officers
  • Uniformed Security Officers
  • Armed Guard Services
  • Unarmed Guard Services
  • Executive Protection
  • Forward Routing Escort Service
  • Professional Investigation Services
  • Patrol Car Services | Fully Marked or Unmarked Vehicles | LED Flashing Lights | All-Wheel Drive Options Available

Industry-Wide Coverage

We service any industry, no matter the size or scope. Our mission is to give you peace of mind—and we deliver. With over 30 years of experience across Metro Detroit, Flint, and Ypsilanti, TMH Security has a proven track record of excellence.

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A Custom Approach for Every Client

TMH Security is dedicated to developing and implementing specialized security programs tailored to each client’s unique needs.

We combine

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    Professional Quality Services

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    Cost Efficiency

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    Exceptional Security Personnel

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    Industry-Leading Perimeter Security

Experienced Management

Our management team brings over 48 years of security management expertise to every client we serve. Request a consultation.