San Antonio home security without the contract trap.
Professional monitoring from $9.99/mo and complete financed systems from $55/mo — installed by local ASG technicians, not a national call center. Get your custom quote in 60 seconds.Monitoring from $9.99/mo. Complete systems from $55/mo, installed by local techs. See your price below ↓
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One simple monthly payment. Zero contracts.
Monitoring is $9.99/mo, month-to-month. Equipment is financed into one predictable payment — no $2,000 upfront, no 60-month contract. Every package covers every door and window.
Every way in, watched.
The whole perimeter — every door, every window — armed from the wall or your phone.
$9.99/mo monitoring + financed equipment*
- ALL doors & windows covered — no "3 sensors included" games
- 24/7 monitoring: police, fire & medical response
- Arm, disarm and check in from anywhere
Panel · ALL sensors · glass break · app
See who's there — from anywhere.
Everything in Secure, plus eyes on the front door and a lock you control from your phone.
$9.99/mo monitoring + financed equipment*
- Answer your door from the office, the deer lease, anywhere
- Let the kids in without hiding a key — lock up from your phone
- Smoke + motion protection watching while you sleep
+ doorbell cam · 360° cam · smart lock · smoke
No blind side. Anywhere.
Our most complete protection — recorded eyes on every approach, inside and out.
$9.99/mo monitoring + financed equipment*
- Three 360° floodlight cameras — every side of the house, lit and recorded
- Double glass-break coverage for larger or two-story homes
- Everything we install, in one payment
3× 360° cams · 2× glass break · everything in Smart Haven*Financing with approved credit; payment varies with equipment and term. Larger homes and custom systems range up to $250/mo all-in. Life-safety monitoring requires compatible smoke/CO equipment. Exact sensor counts sized to your home on the free quote call. Equipment financing is a purchase agreement for hardware you own — remaining equipment payments continue if you cancel monitoring.
355+ San Antonio families put their name on it
These aren't testimonials we wrote — they're public Google reviews anyone can verify. Yes, David, Dominic, and Alex are real technicians. Your neighbors keep naming them.
"I'm Harry Kinker and have been a warden here around San Antonio for over 20 years — now retired. I don't take security lightly. The team at ASG was professional, honest, and didn't try to oversell me. The system works exactly like they said it would, and the cameras are sharp."
"I live in the Leon Valley area, and after years of dealing with shady salesmen and broken promises, I can say ASG Security is the best decision I've made. Dominic was different from the start — upfront, transparent, and honest. No tricks."
"I've had alarm systems before, but never anything like this. Our new setup finally gives us 24/7 recording for 30 days, and the colorful night vision and voice deterrents on the cameras make me feel so much more secure. Every part of our home is now fully protected inside and out."
"My technician David came in and installed my new system quick and throughly explained how to arm and disarm my system clearly. He was nice and patient with me answering my questions, and he was professional"
"My technician, David Bueno, came in and installed my new security system, and showed me how to use the system. He was nice, patient, and answered all my questions. Would recommend :)"
"Alex was very knowledgeable and professional. Nice guy!"
Every review above is public and word-for-word. Go check us — we'll wait.
Real installs. Real homes. Around San Antonio.
No stock photos on this page — these are our technicians, our equipment, and your neighbors' houses.
Why San Antonio homeowners are switching from the national brands
The big names lock you into 36–60 month contracts, then hand you to a call center. We're an independent Texas company — month-to-month, with our name on every install.
| ASG Security | Typical national dealer | |
|---|---|---|
| Contract | Month-to-month monitoring — cancel service anytime. Your equipment is yours. | 36–60 month agreements with steep cancellation fees |
| Who shows up | Our own local, background-checked technicians | Rotating third-party installers |
| Who answers | The same San Antonio team that installed your system | A national call center queue |
| Reputation | 4.8★ from 355+ of your actual neighbors | Mixed reviews spread across thousands of dealers |
| Monitoring | 24/7 professional monitoring | 24/7 professional monitoring |
Comparison reflects the typical experience reported with large national security dealers; individual companies vary. We kept the monitoring row equal on purpose — we won't invent advantages we don't have.
From quiz to protected in three steps
Answer 6 quick questions
Tell us about your home and what matters most. Takes about 60 seconds — no credit card, no commitment.
Get your custom quote by phone
A local ASG expert calls with a quote built for your home and budget — including $0-down financing options. Zero pressure to buy on the call.
Professional installation
Our own San Antonio technicians install, test everything with you, and show you the app — usually within days.
We put our money where our monitoring is
24/7 Professional Monitoring
Trained monitoring professionals watch over your home around the clock and can dispatch emergency services on your behalf — whether you're asleep, at work, or on vacation.
30-Day Money-Back Guarantee
If we can’t resolve a system issue within your first 30 days, we’ll refund your installation and monitoring fees. Full terms provided at time of sale.
$350 Theft Protection Guarantee
If a burglary occurs while your ASG system is armed and monitored, we'll reimburse up to $350 toward your homeowner's insurance deductible. Conditions apply.
Proudly protecting Greater San Antonio
Our technicians live and work here — which is why we can install fast and show up when you call. Serving Bexar County and the surrounding Hill Country communities:
Don't see your neighborhood? Enter your ZIP in the quiz — we likely cover you.
Home security in San Antonio, done the local way
ASG Security installs and monitors home security systems across Greater San Antonio — smart alarm panels, door and window sensors, glass break detectors, video doorbells, and 360° outdoor security cameras, all backed by 24/7 professional monitoring over cellular. Unlike national alarm companies, our monitoring is month-to-month with no long-term contract, and complete financed systems start at $55/mo all-in.
Looking for security in your part of town? Start with your area: Alamo Heights, Stone Oak, Helotes, Boerne, New Braunfels, Schertz, Cibolo, or Converse.
What San Antonio homeowners ask us
Is there really no contract?
How much does a system actually cost?
What does $0 down mean?
I already have equipment from another company. Can you use it?
Who actually comes to my house?
What happens when my alarm goes off?
I rent — can I still get a system?
The best time to get a security system is before you need one.
Free custom quote. No monitoring contract. From a local team 355+ of your neighbors already vouched for.
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