Go to the Armstrong website Go back home
Guardian Protection Services -- One of the Armstrong Group of Companies

Home Security
Call 1-800-PROTECT (776-8328) today!

Home Security

Home Security
Contact Guardian for a special home security system offer.
The Guardian Files
Guardian at a Glance

The world's largest privately-held security company

Founded in 1950

Headquarters: Pittsburgh, PA

Customers: 200,000

Employees: 1000 full time

One of the Armstrong Group of Companies



 Where is Guardian?
Headquartered outside of Pittsburgh, Pennsylvania, Guardian provides monitoring services throughout the United States, including Alaska, Hawaii, Puerto Rico and the Bahamas. And through an extensive network of affiliated suppliers, Guardian also offers service and installation nationwide.

Corporate Headquarters:
174 Thorn Hill Road
Warrendale, PA 15086
1-800-PROTECT (1-800-776-8328)

Already a Guardian Customer?
Customer Care: 1-888-895-4805
Billing Inquiries: 1-800-250-6426
More in this section
Where is Guardian?

Armstrong, our Parent Company

Our Dealer Program

Awards and Recognitions

U.L. Certification

Branch Locations List

  • AUSTIN
  • 11500 Metric Blvd
  • Ste 210
  • Austin, TX 78758
  • (512)371-1535
  • BALTIMORE
  • 510 McCormick Dr
  • Suites F-G
  • Glen Burnie, MD 21061
  • (410)753-2353
  • CHARLOTTE
  • Whitehall Tech Center VI
  • 2520 Whitehall Park Dr
  • Ste 400
  • Charlotte, NC 28273
  • (704)587-1734
  • CHICAGO
  • Woodlake Corporate Park
  • 901 Parkview Blvd
  • Lombard, IL 60148
  • (630)693-9902
  • CINCINNATI
  • 9854 Windisch Dr
  • West Chester, OH 45069
  • (513)755-6389
  • DALLAS
  • 6221 Riverside Dr
  • Ste 100
  • Irving, TX 75039
  • (214)438-1448
  • INDIANAPOLIS (FT. WAYNE)
  • 4013 Vincennes Rd
  • Indianapolis, IN 46268
  • (317)334-9854
  • ORLANDO
  • 5874 S Semoran Blvd
  • Orlando, FL 32822
  • (407)482-0947
  • PHILADELPHIA
  • 11 Penns Trail
  • Ste 400
  • Newtown, PA 18940
  • (215)8674552
  • PHOENIX
  • 4340 West Chandler Blvd
  • Ste 12
  • Chandler, AZ 85226
  • (480)961-5435
  • PITTSBURGH
  • 174 Thorn Hill Rd
  • Warrendale, PA 15086
  • (724)741-3635
  • ROCKVILLE
  • Oakmont R&D Park
  • 8475 Helgerman Ct
  • Gaithersburg, MD 20877
  • (202)470-6434
  • SALISBURY
  • NorthGate Business Park
  • Bldg #1
  • 119 Naylor Mill Rd, Ste 14
  • Salisbury, MD 21801
  • (410)753-2353
  • SAN ANTONIO
  • 5253 Prue Rd, Building #3
  • Ste #300
  • San Antonio, TX 78249
  • (210)390-3562
  • SHEBOYGAN
  • 834 New York Ave
  • Sheboygan, WI 53081
  • (866)690-9089
  • TAMPA
  • 4710 Eisenhower Blvd
  • Ste F-1
  • Tampa, FL 33634
  • (941)955-1453
  • YOUNGSTOWN
  • 5401 Ashley Circle
  • Ste A
  • Austintown, OH 44515
  • (330)792-6370
About Us  |   Types of Protection  |   True Stories  |   Your Safety  |   Customer Care  |   Careers  |   Contact Us
design element

© Guardian Protection Services | One of the Armstrong Group of Companies
174 Thorn Hill Road - Warrendale, PA 15086 - 1-888-279-6971

AL 10-823; AR E 2006 0001; AZ ROC208756; CA ACQ 5382, ACO 6484; DC ECS900301, DMS200495; DE 1995110043; FL EF-0001052; GA LA204856; IL 127-001224; IN 90131148260; KY 144; MD 107-496, MHIC48578 [(888) 218-5925]; MI 3601205553, A751623; NC 1812-CSA; BPN 003018P6; NJ NJDFS P00951, NJ Burglar and Fire Alarm License 34BF000091, 11 Penns Trail, Suite 400, Newtown, PA 18940, [(800) 776-8328]; NV 1006345728; NY 12000234104; OH 53 89 1300, F-017; OK 951; PA 009679; RI 0608A; SC FAC1074, BAC5191; TN 6396002; TX B10340, ACR-2986; UT 7437864-6501; VA 11-1907, 2705-026865; WA UBI 602819804; WI Sheboygan: 1679; WV WV033013

     For our visually impaired friends, please go to our Section 508 page.      Privacy Policy | Technical Help | Site Map