Pennington and Trim Alarm Services, Inc.


Serving Jackson, Hattiesburg, Southaven, Gulfport, Biloxi & All of Mississippi.

Since 1987

Please contact me.

Do you have a security need for your home, business, or facility? Ask us a question, request a free quote, or just leave us a message.


Mississippi State License #15006301

Products & Services

Residential Security Systems

Home Security Systems

Powerful, easy-to-use features will provide you and your family with ultimate security.

Security cameras & smartphone app

Security Cameras

Remote video camera monitoring for home or business. View on a smartphone app.

Z-wave smart door lock

Smart Home Automation

With Smart Home Automation, your home will be more convenient and more secure. Smartphone App

Smartphone App

No matter where you are, you’re in control with the smartphone app.

Small business security systems

Business Security Systems

Business security systems for small companies, offices, chain stores, warehouses, to large facilities.

Alarm Central Monitoring Station

Alarm Monitoring

Alarm monitoring around the clock with professional response to your alarm events and emergencies.

Fire alarm system pull station

Fire Alarm Monitoring

Fire alarm system service and monitoring by a professional central station.

Access Control System Card Reader

Access Control Systems

With card readers, key fobs, and biometric, you can control access and track activities.

Please contact me.

Do you have a security need for your home, business, or facility? Ask us a question, request a free quote, or just leave us a message.


Mississippi’s largest privately-owned security dealer.

More than 36 years securing Mississippi homes and businesses!

No long-term contracts.

Most security system companies will require you to sign a monitoring contract committing you to three years or more. Not Pennington & Trim.

Low monitoring fees

Low monitoring fees.

Pennington & Trim has very affordable alarm monitoring. We don’t increase the monitoring charges every year like most national companies.

Fast, friendly service.

Fast, friendly service.

Pennington & Trim is dedicated to serving you whenever you need us. Every Pennington & Trim Team member is focused on your complete satisfaction.

“Outstanding Service! Wonderful family owned business. Professional and Kind!”

Brian Sistrunk

Introducing the Powerful IQ4 Security System

Introducing the Powerful IQ4 Security System

Best Security System for your Family in 2023

The latest advanced technology.

The Qolsys Security & Smart Home Automation System is your complete home solution. The system includes encrypted security and convenient Smart Home Automation. Automatically turn lights on, adjust the thermostat and disarm the security – all automatically via bluetooth.

See who is at the front door and talk to your visitor. See if the kids are home on time.

Your home will be more intelligent, more convenient and more secure with the Qolsys Security & Smart Home Automation System.

Easy to use

There has never been a smart home security system that’s easier to use. The latest technology is designed to automate tasks and to fit your lifestyle.

Smartphone App

No matter where you are, you can be in total control of your security and home automation with the smartphone app. Arm and disarm security, adjust your thermostat, lock or unlock doors, switch lights on or off. With optional cameras, you’ll be able to see your home with clear, sharp, live video. Smartphone App

Control from a single smartphone app.

Bluetooth security system disarming

Convenient Bluetooth Disarming

Encrypted wireless sensors

Encrypted Wireless Sensors

Qolsys Live Answer for front door visitors

Live Answer for Front Door Visitors

Security Camera Systems

For Home or Business

A critical part of your security is video cameras. We will place surveillance cameras in strategic locations around your home or business. When an intruder is detected, video from your cameras can be relayed to your smartphone app. Video can also be recorded on a digital video recorder. HD, 4K, low-light, and infrared illumination (IR) cameras are available for your specific needs.

Please contact me.

Do you have a security need for your home, business, or facility? Ask us a question, request a free quote, or just leave us a message.

Security surveillance camera & Smartphone App

“For me, it is not just about the technology of security, but it is who I trust. For 18 years we’ve used Pennington & Trim Alarm Services at Belhaven University and I trust Ed Trim to always get the security right, and to always treat us right.”

Dr. Roger Parrott

President, Belhaven University

“My wife and I have been Pennington & Trim customers since 1998. Each contact with Pennington and Trim leaves me feeling like the most important customer they have. It is a family owned business that treats me as family.”

Malcom Houston

Agent, State Farm Insurance

What’s special about Pennington & Trim?

The team at Pennington & Trim is proud of their company. Every employee is dedicated to customer satisfaction and fast, professional service. It’s a consistent track record of more than 36 years. That’s the key. When you’ve been installing security systems and pleasing customers for 36 years, you must be doing something right.

“God has blessed us through the years and our best days are ahead. We thank all of our customers for letting us be part of your lives.” -Ed Trim

“I have known Ed and his family and done business with them for years. I would not hesitate to use them or send any of my friends to them. If you want it done right the first time and want to talk to a person and not a recording, call Pennington and Trim.” -Anthony Griffin

“We had a great experience with Pennington and Trim. Fantastic product and fantastic technicians. We are thrilled with our security system and we are so happy with this company. We definitely recommend them!” -Trish Blacksher
“Outstanding company! Not only are their staff some of the sweetest, most professional people out there, but Pennington makes it a point to serve their community and local non-profits on a regular basis. We love Pennington & Trim!!” -Jennifer Floyd

Fast, Friendly Service

Our customers say it best:

“When conducting business or going to a restaurant, one thing that keeps me going back is GOOD customer service. I have definitely experienced that with Pennington and Trim Alarm Services. Their service department has always had a good attitude and has always offered great help with any questions or issues I’ve had. Thank you for your service and keep up the good work.” -Andre’ Cameron, Faith4Life Church

Service Technician

Community Outreach

As a Christian company, we know that it’s not just important to talk-the talk, but also walk-the walk. That’s why we endeavor to spread the good news of Jesus Christ through our words and our actions. Once a quarter, our staff participates in local missions work in the metro area. Owners Ed and Dana Trim are active members of Word of Life Church in Flowood, MS. They are frequent volunteers for Life Poindexter, the church’s inner-city outreach center in downtown Jackson. In addition, they are dedicated to missions throughout the United States as well as foreign missions, having traveled abroad to places such as Africa, India, South America, and Europe to help spread the Gospel.

We believe that giving back both to our local community and the world is vital to our success. It is an ideal we practice and teach.

One of the oldest security companies in Mississippi.


Securing Mississippi Families Since 1987
Pennington & Trim in business for 35 years

We have experience.

36 years in business.

Pennington & Trim team

We have talent.

29 professional team members.

Five Guys is our customer.

We have satisfied customers.

19,000 customers served.

Our Partners

CMS logo
Qolsys logo
DSC logo
Residio logo

Our corporate office is at Flowood, in the Jackson Metro area.

We serve the entire state of Mississippi from our home office in Flowood, just outside of Jackson. Larger cities we serve include Biloxi, Brandon, Brookhaven, Canton, Clarksdale, Cleveland, Clinton, Columbus, Corinth, Gautier, Greenville, Greenwood, Grenada, Gulfport, Hattiesburg, Horn Lake, Indianola, Jackson, Laurel, Long Beach, Madison, McComb, Meridian, Moss Point, Natchez, Ocean Springs, Olive Branch, Oxford, Pascagoula, Pearl, Picayune, Ridgeland, Southaven, Starkville, Tupelo, Vicksburg, and Yazoo City.

Technician Service Team at Pennington & Trim

Getting Better Every Day

At Pennington & Trim, we sincerely believe that each day you're either getting better or you're getting worse! That's why we hold technician meetings throughout the year to help cross our "t's" and dot our "i's". Meetings like these help our Service Technicians...

Sole II Soul 5K Run & Fun Run

Pennington & Trim is pleased to announce that we are signature sponsors for the "1st Annual Mississippi Sole II Soul 5K Race" and "Superhero 1 Mile Fun Run"! The races benefit the community by bringing awareness to the importance of having fun while being...

Sunnybrook Children’s Home 2022 Missions

Every quarter we shut down the office to do team building. This quarter we ate breakfast together and played a game for time off benefits. We played Disc Golf outside because of the nice weather. After our team building, we helped the Sunnybrook Children's Home in...

Mustard Seed Quarterly Mission Trip 2022

We had a great day serving for the Mustard Seed on our quarterly missions trip. It was such a joy to be the hands and feet for Jesus! Mustard Seed Ministries aids adults with developmental disabilities."...if you have faith as small as a mustard seed, you can say to...

Through the Eyes of an Intruder

Researchers Study Convicted Burglars to Prove Effectiveness of Alarms, Shed Light on Habits and Motivations There’s no better way to figure out what motivates a burglar than to go directly to the source:  Just ask the burglar. A groundbreaking new study by a...

Stewpot Kitchen

We had the opportunity to give back to our community by working with Stewpot Kitchen in downtown Jackson. We were able to help serve, feed, and provide gift bags to 75 – 100 people in need.

Catholic Charities

We partnered with Catholic Charities and were able to make improvements on one of their homes that are used for a ministry to young mothers. In the few hours that we were there we painted a hallway, foyer, living room, dining room, and kitchen. We were also able to...

Ronald McDonald House

As a community service outreach, we sent a team of our technicians to upgrade the burglar & fire system at The Ronald McDonald House in downtown Jackson. This was done as a gift to The Ronald McDonald House.

Please contact me.

Do you have a need for your home, business or facility?  Ask us a question, request a quote of just leave us a message. We’d love to hear from you!

With our 36 years of experience serving 19,000 customers, we know a thing or two about security systems.

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