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Home Security System Cost in San Antonio (2026): Monitoring, Equipment & Install
Straight answer first: in San Antonio, professional monitoring from Alamo Smart Home is $19.99 a month, or $24.99 a month if you want video analytics and cloud recording with it. Those are the only two monthly numbers we have. Equipment is quoted on site, after someone walks your home, because a 1,200 sq ft house near Woodlawn Lake and a five-bedroom in Stone Oak do not need the same system. This guide breaks down every part of the bill, including the parts companies do not put in the ad.
How much does a home security system cost in San Antonio?
A home security system in San Antonio has two costs: the equipment, quoted on site after a free walkthrough of your home, and the monitoring, which with Alamo is $19.99 a month, or $24.99 with video analytics and cloud recording. There is no required contract, and you own the equipment you buy.
We do not publish an equipment price because we would have to make one up. The panel, the number of door and window sensors, whether you want cameras, a video doorbell, smart locks, leak sensors or a water shutoff valve, whether the house is wired or needs everything wireless, whether an existing panel can be taken over instead of replaced: all of it moves the number. A security analyst walks the property, counts the entry points, and prices exactly what you need. That visit is free and there is no obligation at the end of it.
Two more things belong in your budget. Install is part of the quote rather than a surprise line item. And the City of San Antonio charges a fee for the alarm permit a monitored system requires: see our City of San Antonio alarm permit guide, or the Bexar County alarm permit guide if you are outside the city limits.
How much is home security monitoring per month?
Alamo charges $19.99 a month for professional monitoring, and $24.99 a month for monitoring with video analytics and cloud recording. Both include the Alarm.com app. Neither requires a long-term contract, and the rate does not creep upward year over year. Your first two months of monitoring are free with an install.
For comparison, national brands typically run $45 to $90 a month, usually on a 36 to 60 month agreement, and usually with the equipment financed inside that monthly rate. Over the ten-plus years most people keep a system, that difference is the largest single number in this whole article, and it is the one nobody puts on a billboard.
What the fee buys is a monitoring center that sees your alarm and acts on it, plus the app that lets you arm, disarm and check a camera. Alamo’s monitoring and service run out of San Antonio, staffed by salaried Alamo employees rather than subcontractors.
How much does security camera installation cost?
Camera installation is quoted on site, because the price follows the job: how many cameras, how far the runs are, whether there is attic access, and whether footage lives on a local recorder, in the cloud, or both. Monitoring with video analytics and cloud recording is $24.99 a month. You own the cameras.
What matters is placement and count, not megapixels. A single video doorbell is a small job; driveway, back yard, side gate and garage coverage on a two-story house is a bigger one. Worth knowing before you buy hardware online: cameras that are not tied into your alarm leave you with a second app and nobody dispatching. Ours run through the same panel and Alarm.com app as the rest of the system. More on our San Antonio security camera page.
Is a $19.99/month alarm system legit?
Yes. $19.99 a month is our real, flat price for professional monitoring, not an introductory rate that resets at month 13. It is low because you pay for the equipment once and own it, instead of renting it forever inside an inflated monitoring fee. Add video analytics and cloud recording and the price is $24.99.
A low rate looks suspicious because the industry taught people to be suspicious. Plenty of companies advertise a small number, then attach a multi-year agreement, an activation fee, a rate escalation clause and leased hardware you have to send back. Ask any company, including us, four questions: is the equipment mine, is a contract required, does the rate go up, what happens if I cancel. Our answers are on the record, and the model is explained on our no-contract home security page.
Why do ‘free’ security systems cost more?
Nobody gives away hardware. A “free” system means the equipment cost was moved into your monthly bill and spread across a three to five year contract, usually with a rate that rises. You pay for the gear several times over, you never own it, and you cannot upgrade it without starting a new agreement.
It is the old cell-phone contract, applied to something you keep far longer than a phone: a free panel, a five-year lock-in, a monthly rate in the national $45 to $90 range, and hardware that is years old by the time the term ends. The alternative is the one the carriers eventually adopted. Pay for the equipment once, own it, and pay a low flat rate for the service. That is why our monthly number can be $19.99 while the systems we install are current.
What moves your equipment quote up or down
- Entry points. More doors and ground-floor windows means more sensors. Square footage matters less than the shape of the house.
- Cameras and video. Doorbell only, or full exterior coverage, is the single biggest swing in most quotes.
- Automation. Smart locks, garage control, lighting and thermostats are optional and priced as you add them.
- What is already there. We can often take over or upgrade compatible existing equipment instead of replacing it, which lowers the quote.
Hidden costs to ask any San Antonio company about
- Rate increases. Ask whether the monthly rate can change, and get the answer in writing.
- Contract length and early termination. A cancellation fee on a five-year term can run into real money.
- Activation and truck-roll fees. Some companies charge to turn the system on, and again for every service visit.
- Leased equipment. If you do not own it, you either return it or keep paying for it.
- Subcontracted labor. If the installer is a contractor, the warranty conversation gets complicated later. Ours are salaried Alamo employees.
How to pay less without giving up real monitoring
- Own the equipment. Buying it once beats financing it inside a monthly rate for a decade.
- Skip the long contract. Month-to-month keeps the company earning your business.
- Ask your insurer. Many homeowners policies discount a professionally monitored system, and some ask for monitored smoke or water detection.
- Start with what protects the most. Entry points and smoke first, cameras and automation as you go. The system is expandable.
- Take the free walkthrough. A real quote from someone standing in your living room beats a package chosen off a website.
What it costs with Alamo Smart Home
- $19.99 a month for professional monitoring, or $24.99 a month with video analytics and cloud recording.
- Two months of monitoring free with an install.
- No long-term contract required. A contract is offered, never mandatory.
- You own your equipment, quoted on site after a free analysis.
- Monitored and serviced from San Antonio by salaried Alamo technicians, never subcontractors.
- Texas licence #B05229001, 4.9 stars from 1,300+ Google reviews, San Antonio headquarters since 2017. More about the company on who’s Alamo and in our customer reviews.
Frequently asked questions
How much does home security cost per month in San Antonio?
Professional monitoring is $19.99 a month, or $24.99 a month with video analytics and cloud recording. No long-term contract is required, and your first two months are free with an install.
How much does the equipment cost?
Equipment is quoted on site, free and with no obligation, because the price depends on the number of entry points, cameras and add-ons your home needs. You own what you buy.
Is installation included in the price?
Installation is part of the quote you approve before any work starts, done by salaried Alamo technicians rather than subcontractors. There is no separate activation charge sprung on you afterwards.
Do I have to sign a contract?
No. A contract is optional and never required. You can lock in your rate if you want to, but month-to-month is available and the rate does not climb over time.
Do I own the equipment or lease it?
You own it. The panel, sensors, cameras and doorbell are yours, so if you ever leave you keep the hardware you paid for.
How does that compare with national brands?
National brands typically charge $45 to $90 a month, usually on a 36 to 60 month agreement with the equipment financed into the rate. Ours is $19.99, or $24.99 with video, with no required term.
Does a security system lower my home insurance?
Many homeowners policies offer a discount for a professionally monitored system, and some also want monitored smoke or water detection. Ask your insurer what qualifies before you finalize the design.
Do I need an alarm permit in San Antonio, and does it cost extra?
Yes, the City of San Antonio requires a permit for a monitored alarm and charges a fee. We register every customer. See our City of San Antonio alarm permit guide or the Bexar County alarm permit guide.
Get a real number for your San Antonio home
The honest way to price a security system is to look at the house. A security analyst walks your property, counts what needs covering, and gives you a written quote with no obligation. Monitoring is $19.99 a month, or $24.99 with video analytics and cloud recording, and the first two months are on us. We are at 503 E Ramsey Rd, Ste 103, San Antonio, TX 78216.