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J.W.Dielmann, Inc. - Fire Alarm Systems Sales & Service

we are certified

J.W. Dielmann, Inc. is a full service commercial life safety systems company specializing in sales, design, installation service and support of fire alarm systems,  nurse call systems and portable fire extinguishers, for local state and federal facilities in San Antonio and South Texas.

Founded in 1995 by James W. Dielmann as a small business, the operation grew rapidly into what it is today. J.W. Dielmann, Inc. has licensed Fire Alarm Planning Superintendents as well as NICET (National Institute for Certification in Engineering Technologies) level IV and level III. We also have state licensed Fire Alarm Technicians. At J.W. Dielmann, Inc. we take pride in our work and constantly go out of our way to meet or exceed our customers’ expectations, it is our mission to provide the best quality work, equipment, and customer service required to get the job done right.

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  • 4019 Stahl Rd. Suite 118
    San Antonio, TX 78217
  • Phone: 210 402-0605
  • Fax: 210 402-4070
  • Email:

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