A good home security system brings you peace of mind.

A1 Security Service offers a wide variety of security solutions for your home to discourage criminals and to notify the authorities if you experience a break-in, fire or medical emergency

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Customize a security solution for your business that fits your needs

A1 Security knows that you have worked hard to get your business where it is today and you want to protect it.

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Custom Security Solutions and Professionally Wired Camera systems

We always try to Provide Cost Effective Security Solutions

What We Offer

our services

A1 Security Service in Lexington, South Carolina services Columbia, Lexington, Irmo and Central South Carolina with a wide variety of protection solutions for your home or business ranging from basic home security systems, business security systems to complicated networking systems. A1 Security service is an independent specialist that provides a variety of high quality custom security systems.

Custom Home Security Solutions

Everybody wants to feel safe and secure in their house, but the world can be a dangerous place. No matter if you have already experienced a burglary or you’d just like additional peace of mind, a state-of-the-art monitoring system can help you sleep better at night. When choosing the installer for your equipment, you should look for an experienced custom home security company that’s ready to handle any situation. At A1 Security Service, we’ve worked with South Carolinians for decades, and we are ready to design the ideal set-up to protect you and your family.

Home Security Solutions
Home Security
Business Security

Custom Business Security Solutions

It takes a lot of hard work and money to get a business up and running, but what are you doing to protect your investment? From employee theft and lost inventory to burglary and other crimes, attacks against your livelihood could come from any direction. One of the smartest things you can do to defend yourself is partner with a trusted commercial security company in SC to install a technological barrier around your assets. At A1 Security Service, we have more than 20 years of experience working with different businesses and we're ready to help shore up your defenses.

Commercial Security Solutions

Custom Home Audio Solutions through our AudioOne Division

After a long day at work, there are few ways of relaxing better than unwinding in front of the television, but are you getting the most out of your audiovisual set-up? A large flat-screen television is one part of the equation, but it takes more than that to create a fully-immersive experience. When it’s time to take your equipment to the next level, you need a trusted partner to create the perfect entertainment suite. At A1 Security Service, we’ve created custom home theater systems in Lexington, SC, and many other areas for more than a decade, and we’re ready to do the same in your home.

Home Theater Solutions
Home Audio
Wi-Fi Network Cabling

Security and Wi-Fi Network Cabling Services in Columbia SC

Security systems are only as effective as they are reliable. A poorly installed system could put your home or business at risk. Choose A1 Security Service for your custom home security system. You can be confident that our expertly trained team will set up top-quality, dependable wiring. We also provide network cabling services in Columbia SC. Our cabling team is a leader in structured network and WiFi setup.

Network Cabling Services

We are ready to provide security in a reasonable price range and guarantee your safety in any situation in your life


Package includes:
  • Cellular Connection
  • A Full Security System
    • Digital Panel
    • High Decibel Alarm
    • Entryway Sensors
    • Window and Yard Signs
  • 24/7 Professional Monitoring


Package includes:
  • Turn your smart home into a safer home
  • Includes everything in the Traditional package plus:
  • A1 Security Mobile App
    Control your security system and smart devices from your phone or tablet
  • Home Automation compatible
    Sync with select smart devices to manage from virtually anywhere
  • Email and text alerts


Package includes:
  • Add video monitoring for more protection
  • Includes everything in the Control package plus:
  • Remote secure video
  • Live video and clips of triggered events
  • View on any connected device- phone, computer or tablet
  • Indoor, outdoor and doorbell cameras available.


What Our Clients Are Saying

Ken and his team provide excellent customer service! They are kind, honest, timely, and answer any/all questions. The monthly subscription is highly reasonable for the excellent quality of security systems he provides. They share options specific to each individual’s needs. Highly recommend Audio One/A1 Security!

C Farrell

Lexington SC

Great customer service and very informative! Super helpful when deciding what we need.

D Ford

Columbia SC

Got a Question?

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If you have any questions about any of the services or products we offer, contact us by phone or email.

Monitored Security Systems