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Sentry Protective Systems

Home Security Systems, Home Automation

About us

Sentry Protective Systems is proud to be New England's Premier Alarm Company. Sentry promises to provide the best possible residential and commercial alarm security products and services available for our clients at affordable and fair rates, be available 24/7 to our clients and we promise to follow the sunset rule which means all calls are returned before the sun sets. We are a family owned and operated business with over 35 years of experience in the field. Our UL listed Central Station is located in Lynn, Massachusetts.

Business highlights

11 years of trusted experience
Emergency Services Offered

Services we offer

Security Systems, including burglar alarms, video surveillance systems, smoke detectors, and carbon monoxide detectors, Sentry will design,install & monitor new security systems and / or monitor your existing security system.

Services we don't offer

We do not install systems purchased from outside retailers. We pride ourselves on installing only the best. We will monitor existing systems.

Amenities

Free Estimates
Yes
Warranties
Yes
Senior Discount

10%

Emergency Services
Yes


Accepted payment methods

American Express
Check
Discover
Financing Available
MasterCard
Visa

Photos of past projects

Reviews

5.021 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
100%
4
0%
3
0%
2
0%
1
0%


Rating CategoryRating out of 5
quality
5.0
value
4.9
professionalism
5.0
responsiveness
5.0
punctuality
4.9
Showing 1-21 of 21 reviews

Tom L.
11/2019
5.0
home security systems
  + -1 more
Perfect. Was a large job and Sentry worked very hard to convert 20 year old ADT system to a modern online security system. Consisted of doors, windows, motion, & smoke.
Description of Work: Modified old ADT system to newer online system.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$650

Bradley R.
07/2019
5.0
home security systems
  + -1 more
Wanted to eliminate problem of roughly one false alarm per year. using better sensors. Also wanted to upgrade from landline to cellular service while adding internet connection.
Description of Work: Did serious upgrade to my alarm system

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Karen S.
07/2018
5.0
home security systems
  + -1 more
Perfect. They were punctual. One of the sensors failed after a few weeks...mechanical problem that Sentry identified...and they replaced it with a better model. Highly recommend these folks. They provide monitoring services which we also use. Great stuff.
Description of Work: Installed security sensors and monitor

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

TJ R.
03/2018
5.0
home security systems
  + -1 more
Very professional, friendly, and helpful. Both the owner Jim and the installer Mike went out of their way to make sure that we had the security system we wanted and to answer all of our questions. I would highly recommend them, and If I ever moved and needed a new system, I would call them again.
Description of Work: Home Security

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Judy L.
08/2017
5.0
home security systems
  + -1 more
They have been great! They were absolutely great! We did a lot of shopping around. I would use them again.
Description of Work: Installed security system

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Alan T.
11/2016
5.0
home security systems
  + -1 more
The owner Jim Baker set up a very quick appointment for us. He did a walk through of the building, asked questions, made suggestions and supplied a quote on the spot. His tech Mike came on the day promised and did a great job. Very professional both as a person and in his work product.
Description of Work: We updated our commercial alarm system.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$1,300

Frank B.
09/2016
5.0
home security systems
  + -1 more
unknown
Description of Work: .
Rating CategoryRating out of 5
Yes, I recommend this pro

Heath G.
07/2016
5.0
home security systems
  + -1 more
A great experience! From first contact, the people at Sentry have been a pleasure to work with. Jim called me back the same day, came out to review my old panel, and produced a fair quote to replace the panel and start monitoring the system. Then today Mike arrived to install the new panel and set up the system - he could not have been more professional and conscientious. It's always nice to have a good experience like this!
Description of Work: Re-activate my condo's alarm system.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$500

Janet C.
05/2016
5.0
home security systems
  + -1 more
unknown
Description of Work: Updated the wireless section of my alarm system & repaired some |connections |

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$1,500

Michele S.
02/2016
5.0
home security systems
  + -1 more
.
Description of Work: Immediately installed our security system day after trespasser was caught on our property. Highly professional and perfectionists to get it done right. I highly recommend Sentry over ADT any day.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$1,900

Linda C.
01/2016
5.0
home security systems
  + -1 more
Installation of new Honeywell Lynx Alarm System and also contracted for Central Station Monitoring Service. As previous reviewers stated- this company is top notch. Great service from beginning to end; and I can see -service beyond that- with follow up calls checking on the equipment etc. This company provides personal customer service- unheard of these days. I had the entire 1st floor of a Cape (all windows and doors) and basement door installed with detectors and a sensor. I added items on last minute and that was no problem at all. I Love this Honeywell System which you can customize with too many options to mention and it can be monitored from Anywhere! Can't say enough about Honeywell. And the installation went smoothly. I was instructed on using the panel etc. and the wonderful installer conducts a thorough complete test of the entire system, cleaining up also, not leaving until I felt comfortable using the system. Wonderful folks! I feel great kowing that I have this extra protection for my home/family. And I've spoken with the Monitoring Service company and their are top also. Thank you SENTRY. Will be seeing you in the future for expansion.
Description of Work: Installation of new Honeywell Lynx Alarm system and contracted Central Station Monitoring Service.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$1,400

Frank B.
01/2016
5.0
home security systems
  + -1 more
unknown
Description of Work: Excellent
Rating CategoryRating out of 5
Yes, I recommend this pro

Michael P.
01/2016
5.0
home security systems
  + -1 more
Jim is the ultimate professional and knows his business. The only reason we did not go with him was that our original provider came back to us with a below cost offer to keep out business. Otherwise we would have definitely use Sentry Protective Systems. I would recommend them for your work.
Description of Work: Jim the owner provider a quote for a 3 location security system installation.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Mary F.
09/2015
5.0
home security systems
  + -1 more
I can't say enough about Sentry Protective Systems. Cheryl and Jim Baker were extremely professional, knowledgeable, and helpful. I would use the same words to describe Mike the technician who came to install the system. I thought the price was very fair (compared to one of the larger companies I had previously called) and the terms were reasonable. I would definitely use them again and would recommend them to anyone without hesitation.
Description of Work: Replaced 14 year old non-monitored security system that had become outdated

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$300

Joanna C.
07/2015
5.0
home security systems
  + -1 more
I wanted a small alarm company instead of a large company where you are just a number. Sentry Protective is terrific and came out immediately to give me an estimate cost of the work. They installed wired alarms in my new front door and two new sliders, and also hooked up my wired windows to their system. (I have a combination wired and wireless system.) I am so pleased with this company and would recommend it to anyone needing a new alarm or anyone changing alarm companies. You will not be sorry!
Description of Work: I had an alarm system installed in my home. It included smoke and carbon monoxide detectors along with Wifi so that I can monitor my home from my phone.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$400

Kathleen H.
02/2015
5.0
home security systems
  + -1 more
A highly professional company from my initial call to re-programming, a thorough check of my system and a follow-up service call. On the rare occasion that an alarm has been set off, phone calls from the call center are prompt and professional. I would recommend them.
Description of Work: The provider changed my service to them which required re-programming.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$300

Lorie S.
10/2014
5.0
home security systems
  + -1 more
unknown
Description of Work: I loved working with this company, family owned, and the owner was the one that came to the house initially. I felt very comfortable with there advice as to what to alarm, etc. I think I got a high quality system that may not be the cheapest but I feel that the quality and service outweighs that.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$1,000

William R.
08/2014
5.0
home security systems
  + -1 more
The system was professionally installed and worked as advertised. We are happy with it after 1 year. The last contact was a false alarm which was also handled well. The monthly service rates are less than competitors.
Description of Work: Install new alarm computer and communication system to central station

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
4.0

Yes, I recommend this pro
$500

Response from Sentry Protective Systems
Thank you so much for taking the time to share your opinion, Bill! We are honored to have you as a customer and are so glad that you are pleased with our services. Have a great day!

T. P. R.
07/2014
5.0
home automation
  + -1 more
See above, Mike and Patti were great! They arrived on time, listened and did what was asked. I would definitely recommend this company.
Description of Work: I had a kind of unusual request for some cameras that would enable us to see pests around our home. Sentry was able to do the work and after one false start, it has worked very well.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$650

Response from Sentry Protective Systems
Thanks so much for taking the time to write us a review, Teri! It was a pleasure working with you. Talk to you soon.

Chris S.
05/2014
5.0
home security systems
  + -1 more
It went well. Very clean and professional service technicians. Very quick and painless!
Description of Work: Sentry did a great job. Sentry installed a home alarm system into my home in Chelmsford, MA. There costs were very competitive and we loved the overall monthly rate which was much lower than ADT. Me and my wife feel comfortable knowing we are with Sentry Protective Systems. Don't think twice about doing business with them.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$800

Sandra S.
04/2013
5.0
home security systems
  + -1 more
They gave me an estimate and when agreed on a price they came the following week. They were on time and did an excellent, professional job. Didn't mess anything and cleaned up any dirt or dust with their own tools. They worked fast and quiet and I am happy that I can have peace of mind kknowing my home is completely protected. I also have the option to view my home by cell phone or computer and can activate or de-activate from wherever I am! Amazing.
Description of Work: They wired my entire house and basement with burglar alarms and security camera.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$1,000

Response from Sentry Protective Systems
(Member name removed), We are so grateful to have you as a customer and thank you so much for your review!

    Contact information

    8 Irene Ave, Billerica, MA 01821

    http://www.sentryprotective.com

    Service hours

    Sunday:
    Closed
    Monday:
    7:30 AM - 6:00 PM
    Tuesday:
    7:30 AM - 6:00 PM
    Wednesday:
    7:30 AM - 6:00 PM
    Thursday:
    7:30 AM - 6:00 PM
    Friday:
    7:30 AM - 6:00 PM
    Saturday:
    9:00 AM - 4:00 AM

    Licensing

    Insured

    Licensed*

    Trade License Number
    1​4​6​9
    Trade License Locale
    MA
    Trade License Authority
    Massachusetts B​o​a​r​d​ ​o​f​ ​S​t​a​t​e​ ​E​x​a​m​i​n​e​r​s​ ​o​f​ ​E​l​e​c​t​r​i​c​i​a​n​s
    Trade License Expiration
    07/31/2022
    State Contractor License Requirements

    All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our State Contractor License Requirements page.

    *Contact business to see additional licenses.


    Service Categories

    Home Security Systems,
    Home Automation

    FAQ

    Sentry Protective Systems is currently rated 5 overall out of 5.

    Sunday: Closed

    Monday: 7:30 AM - 6:00 PM

    Tuesday: 7:30 AM - 6:00 PM

    Wednesday: 7:30 AM - 6:00 PM

    Thursday: 7:30 AM - 6:00 PM

    Friday: 7:30 AM - 6:00 PM

    Saturday: 9:00 AM - 4:00 AM

    Sentry Protective Systems accepts the following forms of payment: American Express,Check,Discover,Financing Available,MasterCard,Visa
    Yes, Sentry Protective Systems offers free project estimates.
    No, Sentry Protective Systems does not offer eco-friendly accreditations.
    No, Sentry Protective Systems does not offer a senior discount.
    Yes, Sentry Protective Systems offers emergency services.
    Yes, Sentry Protective Systems offers warranties.
    Sentry Protective Systems offers the following services: Security Systems, including burglar alarms, video surveillance systems, smoke detectors, and carbon monoxide detectors, Sentry will design,install & monitor new security systems and / or monitor your existing security system.
    We do not install systems purchased from outside retailers. We pride ourselves on installing only the best. We will monitor existing systems.

    Contact information

    8 Irene Ave, Billerica, MA 01821

    http://www.sentryprotective.com

    Service hours

    Sunday:
    Closed
    Monday:
    7:30 AM - 6:00 PM
    Tuesday:
    7:30 AM - 6:00 PM
    Wednesday:
    7:30 AM - 6:00 PM
    Thursday:
    7:30 AM - 6:00 PM
    Friday:
    7:30 AM - 6:00 PM
    Saturday:
    9:00 AM - 4:00 AM