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Name Number of ratings Checkbook's top rating () Firm's price index score What percent of customers rated firm "superior" on our survey for "overall quality"
for quality for price
1. Guardian Alarm
PO Box 509
Germantown, MD 20875
301-972-1545 		10 ratings How does "Guardian Alarm"
rate compared to other home security firms in Libertytown , MD?
 Subscribe Washington Consumers' CHECKBOOK Magazine to find out.
2. Guardian Protection Services
8475 Helgerman Ct
Gaithersburg, MD 20877
301-330-1399 		42 ratings How does "Guardian Protection Services"
rate compared to other home security firms in Libertytown , MD?
 Subscribe Washington Consumers' CHECKBOOK Magazine to find out.
3. Sentry Installation
15940 Derwood Rd
Rockville, MD 20855
301-670-1008 		16 ratings How does "Sentry Installation"
rate compared to other home security firms in Libertytown , MD?
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4. Ultra Guard Security Systems
PO Box 5598
Derwood, MD 20855
301-570-0700 		13 ratings How does "Ultra Guard Security Systems"
rate compared to other home security firms in Libertytown , MD?
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5. Fire Burglary Alarms
12321 Wilkins Ave #A
Rockville, MD 20852
301-231-0555 		24 ratings How does "Fire Burglary Alarms"
rate compared to other home security firms in Libertytown , MD?
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6. Interamerican Security
4817 Randolph Rd
Rockville, MD 20852
301-770-7117 		106 ratings How does "Interamerican Security"
rate compared to other home security firms in Libertytown , MD?
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7. Vector Security
9800 Patuxent Woods Dr #B
Columbia, MD 21046
800-688-0150 		147 ratings How does "Vector Security"
rate compared to other home security firms in Libertytown , MD?
 Subscribe Washington Consumers' CHECKBOOK Magazine to find out.

MD
Beltsville, MD Bowie, MD Chester, MD
Columbia, MD Crofton, MD Derwood, MD
Gaithersburg, MD Germantown, MD Halethorpe, MD
Highland, MD Jessup, MD Kensington, MD
Olney, MD Pikesville, MD Potomac, MD
Rockville, MD Silver Spring, MD Upper Marlboro, MD

VA
Alexandria, VA Arlington, VA Bluemont, VA
Dumfries, VA Fairfax, VA Lorton, VA
Manassas, VA Vienna, VA

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