The Defender System

4.78 | 16 Verified Ratings
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207 Old Lancaster Road
Devon, PA 19333
Your use of our services is governed by our Terms & Conditions

The Defender System

Our company�s mission is to provide innovative security system solutions that meet our clients changing demands. The Defender System develops, markets, and supports a complete hardware, network and software solution for small to medium size corporations and business, homes, apartment buildings and condos, offices, nursing home facilities and other special requirements. The Defender System has over nineteen years� experience in quality design, assembly, testing, installation and maintenance of security system solutions. Our success in the marketplace is based on structuring our company�s resources and services to meet the specific needs of our clients. We have developed the necessary infrastructure to deliver systems and support, on time that meets our client�s budget.


Learn how HomeAdvisor screens and approves their pros.

Service Area

  • Valley Forge
  • Norristown
  • Wayne
  • West Chester
  • Southeastern
  • Media
  • Downingtown
  • Exton
  • Audubon
  • Conshohocken
  • Springfield
  • Bryn Mawr
  • Chester Springs
  • Spring City
  • Devon
  • Malvern
  • Phoenixville
  • Collegeville
  • Havertown
  • Newtown Square
  • Swarthmore
  • Haverford
  • King of Prussia
  • Royersford
  • Lafayette Hill
  • Perkiomenville
  • Plymouth Meeting
  • Montgomeryville
  • Ardmore
  • Glenmoore
  • Unionville
  • Berwyn
  • Oaks
  • Gladwyne
  • Chadds Ford
  • Eagleville
  • Merion Station
  • Glen Mills
  • Broomall
  • Wallingford
  • Paoli
  • Villanova
  • Bridgeport
  • Kennett Square
  • Thorndale
  • See All >

Services Offered

Home Security Services
  • Alarm System Install
  • Alarm System Repair
  • Alarm System Monitor
  • Surveillance Camera Install

Areas of Expertise

  • Alarm or Security System Install
  • Fire - Protection and Prevention
  • Surveillance Cameras - Install or Repair

Quick Facts

Business Hours
(Please call to confirm)
  • Free Estimates
  • Credit Cards Accepted


In Business Since: 1991
State Licensing
Trade: Home Improvement Contractor
License #: PA060223
Expiration: 12-20-2019
HomeAdvisor Screened. View Details

HomeAdvisor allows Service Professionals to post information about themselves and their business on their profile. HomeAdvisor does not review or verify the information or representations set forth in those profiles, as they are self-reported by the Service Professional.

HomeAdvisor verifies state-level licensing where applicable - note: some states require local or county level licensing and you should verify whether or not your pro is properly licensed.
HomeAdvisor: The nation's largest network of screened and rated pros.

Ratings & Reviews
The Defender System

Real feedback from real homeowners.
Learn more about this pro by reading the ratings and reviews below.
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Showing 1-10 of 16
  Page 1 of 2
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5.0   |  
Review by in Malvern, PA
Very through and professional.
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4.0   |  
Review by in Morton, PA
Project: Install, Service, or Repair Surveillance Cameras
work very hard to correct my problem. Very good response to cuetomer inquiries.
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5.0   |  
Review by in Chadds Ford, PA
Replaced my NAPCO security system keypad. Ric researched the right keypad (I have an older system) to insure that the keypad was the right one. Jason, Installation Manager, was courteous, professional and timely. Very satisfied. Fair price. Would definitely recommend.
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5.0   |  
Review by in Newtown Square, PA
Great work, timely and professional.
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4.67   |  
I was happy with the work and professionalism that they provided and got the work done when promised.
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5.0   |  
Review by in Glen Mills, PA
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5.0   |  
Review by in West Chester, PA
They came out right away and did a great job at a fair price.
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5.0   |  
The Defender Systems people are very professional and awesome at work. I definitely recommend.
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5.0   |  
Ric was great. Worked with township and local security manager to insure the systems would operate properly as well as follow local codes. Knows his business.
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5.0   |  
Ric and Jay did a great job.
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Showing 1-10 of 16
  Page 1 of 2

Seal of Approval

What is the screening process that Service Professionals go through in order to become members of the HomeAdvisor network?

  1. Verify Trade License
    HomeAdvisor checks to see if the business carries the appropriate state-level license.
  2. Verify Insurance
    As a part of our screening process, we encourage professionals to carry general liability insurance. We require coverage for hundreds of services.
  3. Verification of State Business Filings
    For business types that require a Secretary of State filing, we confirm that the business is in good standing in the state in which it is located.
  4. Criminal Records Search
    HomeAdvisor uses 3rd party data sources to conduct a criminal search for any relevant criminal activity associated with the owner/principal of the business.
  5. Sex Offender Search
    We confirm that the owner/principal is not listed on the official state Sex Offender web site in the state in which the owner/principal of the company is located.
  6. Bankruptcy Search
    We use 3rd party data sources to check the history of the principal/owner of the business for bankruptcy filings by or against them.
  7. Legal Search for Civil Judgments
    We use 3rd party data sources to check the principal/owner of the business for state level civil legal judgments entered against them.
  8. Liens Search
    We use 3rd party data sources to check the principal/owner of the business for liens placed against them.
  9. Identity Verification (SSN)
    HomeAdvisor verifies the social security number(s) of the owner/principal for identity check purposes. This check applies primarily to smaller business entities.
  10. Identity Verification (Reverse Phone Lookup)
    We conduct a reverse business phone lookup to identify records matching the phone number information provided by the business.

NOTE: Member service professional information confirmed as described above may change or expire over time; while HomeAdvisor attempts to maintain accurate and up-to-date information, and confirms changes when notified, we cannot guarantee that profile and screening information is accurate. Therefore, we recommend that before working with a service professional you verify that information presented is still current and/or acceptable to you.
Please see HomeAdvisor's Terms and Conditions for a full description of how we screen Service Professionals

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