Rt 140 Self Storage 143 Colony Road Gardner, MA 01440 Rt. 140 Self Storage is a safe and secure storage facility in Gardner, MA. The storage facility offers a range of unit sizes for your convenience. Rentals are provided for …
About ESG
Welcome to ESG
Your Local, Family-Owned, Veteran-Owned Security Partner
At Electronic Security Group, we prioritize honesty, respect, and delivering the right security solutions tailored to your needs at a fair price. Our courteous and expert Security Technicians are industry licensed, factory trained and certified, and CORI checked, ensuring you receive top-notch service. We stand behind our work with a money-back guarantee, providing you with the best assurances in Massachusetts (and New England). Experience the ESG difference today.
Bob Maunsell
President of Electronic Security Group, Inc.
- Former SGT USAF
Bob Maunsell, the CEO and founder of ESG Electronic Security Group, Inc., is a highly respected Physical Security Specialist with over 31 years of experience in the field. His expertise encompasses all aspects of physical security projects, from planning and design to installation and construction. Bob’s reputation for excellence in safeguarding and securing facilities and multi-family housing is well-known throughout New England.
Prior to his career in the private security sector, Bob served as a Sergeant in the U.S. Air Force, where he spent five years traveling across the U.S. and Europe installing high-security systems.
Bob is passionate about the Electronic Security Industry and is committed to providing innovative and unique solutions for physical security challenges.
What We Stand For
31 Years Of Commitment To Excellence
ESG has a 31-year proven track record for always putting our clients first, serving them respectfully, providing excellent value, extraordinary client service, and building community trust. These core values have allowed ESG Security to become New England’s top, highly trusted security integrator.
ESG Security has specialized in finding unique and creating ways to secure our client base which includes commercial and industrial, schools, multi-unit complexes, towns and municipalities, housing authorities, and places of worship (churches and synagogues).
Security Client Projects
Video Surveillance Upgrade – Northborough, MA
The Regency Condominiums 56-58-60 Elm Street Worcester, MA 01608 The Regency Condominium is a garden, midrise condominium complex that offers one-level living and is conveniently located close to downtown Worcester. • Video Surveillance Upgrade « Previous Next »
Door Strikes – Boston, MA
Peterborough Housing 78 Peterborough Street Boston, MA 02215 Peterborough Apartments is situated in Boston’s 02215 Zip code, living at this community offers plenty of nearby experiences. The property is nestled amongst the “Emerald Necklace”, Boston’s park system. Peterborough Housing has …
What Leading Professionals Say About ESG
“We are thrilled with the work Electronic Security Group has done – really wonderful to work with such top-notch professionals. When a company, like ours, is growing rapidly, there is a catch-22: infrastructure changes are critically important, but are also a distraction from our core business. Smart companies find pros to turn to, and we’re glad we found Electronic Security Group.”
Randy Parker
President & CTO
“Electronic Security Group was hired to design and install card access, audio/visual presentation and network cabling systems in Roving’s new office space. They were very responsive to our needs and were very meticulous and professional in their work. I would definitely hire them again and give them my highest recommendation.”
Chris Cook
Network Administrator
“Due to rapid growth, the company had to expand its office space to a different floor in the same Towle complex. When construction began on the new space, I contracted with Bob Maunsell from Electronic Security Group to handle all the data and phone wiring for the expansion. From the very beginning it was apparent that ESG was the right choice. Bob reviewed our blueprints for the expansion and offered several suggestions that made the overall wiring infrastructure more practical and allowed for future growth.
ESG’s team came in when expected, did a superb job, and finished the job in time for our scheduled move. The quality of the work was so good that our weekend move was completed without a hitch. We came in on a Saturday and were able to turn the entire network and phone system over by the end of the day. Everyone arrived the following Monday and it was business as usual. We experienced minimal loss in productivity due to a fine job by Electronic Security Group.”
Frank Moreno
I.S. Director
“After receiving several quotes, Electronic Security Group was the clear choice for Mobility Services International (MSI). Bob Maunsell, President of ESG, was able to guarantee us a network cabling system that enabled MSI to retain many of the “mill style” features of the building, including a fully exposed ceiling of the original pine floor boards, circa 1861. He also devised an interesting cable management system that disguised the wiring without detracting from the décor and allowed MSI to have a unique office layout in its call center operations area.
Electronic Security Group installed a card access system that resulted in a flexible security system that accommodated the early and late evening hours of some employees without sacrificing company security. As MSI tweaked the security system, Bob was always there to make suggestions, help troubleshoot and recommend alternative views.
Bob’s approach to all of MSI’s needs was simple – he saw a unique situation and was innovative in offering a flexible, high-quality, reliable solution!”
Marcia Foley
Vice-President, Operations
“We called upon Bob Maunsell at Electronic Security Group to design and install a video system that would allow us to observe employee entrances, the parking areas and employee productivity in our quality control area. All of Electronic Security Group’s technicians were very professional and took great care in cleaning up after the installation. They thoroughly tested the new system, adjusted all lenses and fine-tuned the camera coverage for us. Electronic Security Group created a new level of security for my company that has paid for itself already through increased employee productivity and a substantial reduction in pilfering. I will definitely use Electronic Security Groupin the future and I recommend them to any business considering their services.”
Roland Helwig
Facilities Engineer &
Mark Gengarelli
Facilities Manager
“We are extremely pleased with the recent installation, by Electronic Security Group, of the Security Camera System at Emanuel Village. Your technician was very patient with myself and the staff in educating us on the appropriate usage of the system. The system provides an excellent additional security measure to the facility. Our residents, many of whom are elderly, have also expressed their appreciation with this new security feature as they now have the capability not only to hear their visitors, but to see who their visitors are before allowing entry into the building. You are highly recommended to our Parent and Sister Agencies within Lutheran Social Services of New England, Inc. and any other agency that may have any doubts for any future security issues that may arise within their sites. Of the number of required bids that we sought, you kept your word and were able to complete the job thoroughly within our budget constraints. We look forward to working with you again in the near future as we expand our security system.”
Willistine Johnson, AHM
Resident Manager
“I highly recommend Electronic Security to do network cabling, security and video surveillance. I subcontract ESG to install all of my clients’ networking systems. All of the technicians are excellent workers and are very knowledgeable in their field. They have always offered the best and most cost effective way to install the cabling. I even used them to install the network cabling infrastructure and security system in my new office building.”
Bill Bachand
President
“Electronic Security Group has expertly installed voice and data network cabling and a video surveillance system in my office. The technicians are diligent and professional workers that converse well with my employees and customers. Their work was of the highest quality and done on time! Due to their expertise, our office runs much smoother. Thanks Bob!”
Barry Gerhardt
President & CEO
“Dear Bob,
You always seem to amaze me with your speed, responsiveness, and understanding of what I am trying to accomplish with my security system.
Ever since I started using your security services, you have eliminated a BIG headache for me and as a result, I am much happier. I know when you say you will get something done, it WILL be done. You’re the get-it-done guy!
Thanks for all the help. I am looking forward to a long and happy relationship with your company.”
Greg Atteridge
“Hey Bob,
I didn’t think it was possible to find a security company that understands my facility, but I did, and it’s your company. As you know, I’ve had real challenges in the past getting my security cameras, access control, and parking lot gates taken care of just the way I like it—my way and on time.
My troubles are finally over because of you and your staff. It still amazes me how many different things you manage to do for me and Wyman-Gordon, and you never miss a beat in the entire process. I look forward to working with you in the future on all my projects.
Thanks for everything!”
Paul Berube
Manager / Maintenance, Forging Division
“Dear Bob,
This letter is way overdue. Now that the transfer of all our security systems to ESG is complete, I wanted to thank you and your great technicians for making my life so much easier.
With our old security provider, I was constantly being called for false alarms and malfunctioning equipment, especially in the middle of the night. I used to lay awake at night worrying if my alarm system would go off. Now that we have transferred to ESG, the only time I am called is if there actually is a break-in. Go figure! Isn’t that what an alarm system is for?
Thank you so much—now I actually enjoy sleeping at night.
I also wanted to take the time to compliment your technicians. During the transition, your staff has been very prompt and efficient. I am not used to the great service we now receive with ESG. Gone are the days where I would have to wait weeks to get something repaired or a user to be added.
On behalf of the Great Brook Valley Health Center, please thank all your staff for doing such a great job and dealing with all our difficult problems. It’s a relief to finally find someone in the security business that I can trust.
And most of all, thank you so much.”
Eric Lane
Facilities Manager


