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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. Potomac Security Systems
9821 Kendale Rd
Potomac, MD 20854
301-767-0039 		123 ratings How does "Potomac Security Systems"
rate compared to other home security firms in Potomac , MD?
 Subscribe Washington Consumers' CHECKBOOK Magazine to find out.
2. 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 Potomac , MD?
 Subscribe Washington Consumers' CHECKBOOK Magazine to find out.
3. 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 Potomac , MD?
 Subscribe Washington Consumers' CHECKBOOK Magazine to find out.
4. 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 Potomac , MD?
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5. Splaine Security Systems
3829 Plyers Mill Rd
Kensington, MD 20895
301-942-6262 		60 ratings How does "Splaine Security Systems"
rate compared to other home security firms in Potomac , MD?
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6. 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 Potomac , 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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