5 Best Home Security Systems in San Antonio (2026)

Ranked by real Google ratings and review volume · How we chose

By Brad Smith, Home Services Expert · ✓ Updated October 2026 · 7 min read

We compared 20 home security systems in San Antonio on Google Maps · 5 listed · How we rank

A home security system is mostly decided after the installer leaves: who monitors it, and who picks up when a sensor fails. The home security systems in San Antonio on this page have drawn more than 5,900 Google reviews between them, every one is rated 4.7 or higher, and three carry more than 1,300 reviews each, so the real differences are in the companies behind the equipment.

Short answer: Chorus Security has the most reviews, rated 4.9 from more than 1,700 Google reviews, and Alamo Smart Home is also rated 4.9, on more than 1,300. Alamo's own site advertises flat monitoring at $19.99 a month with no contract, but treat that as the company's claim and get any monitoring price in writing.

Jump to a business

1. Chorus Security
2. Alamo Smart Home
3. Vivint
4. Alert 360 Home & Busin…
5. APEX Smart Home
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Security Companies Compared, From Panel to Monitoring

#	Business	Rating	Reviews	Best for
1	Chorus Security	4.9 ★	1,730	Installation and monitoring	View ›
2	Alamo Smart Home	4.9 ★	1,397	Local service and Alarm.com setups	View ›
3	Vivint	4.8 ★	1,578	Switching from another provider	View ›
4	Alert 360 Home & Business Security San Antonio	4.7 ★	713	Repairs and camera service	View ›
5	APEX Smart Home	4.9 ★	495	Consultative sales, one team for the home	View ›

5 Best Home Security Systems in San Antonio (2026)

Who to call for an alarm system

#1 Overall🕑 Open 5 days/wk

Chorus Security

4.91,730 Google reviews

Chorus Security is a security company at 121 Interpark Blvd, Suite 601. Google tags it as a security system supplier, burglar alarm store and installation service. Its site says every system includes 24/7 professional monitoring, a mobile app and an alarm monitoring certificate for homeowner's insurance discounts. Reviewers describe a system built on Alarm.com with door sensors, a glass break sensor and an alarm panel.

What people praise

Sales representatives who are patient and don't pressure, according to one customer
Neat installs with hidden wiring, per reviewers
Installers who walk customers through the app and system
Alarm.com compatibility that lets one customer add devices later

Worth knowing

Google lists weekday office hours only

Reputation scorecardrank in San Antonio

Rating4.9 / 5

Review volume1,730 · 98th

Confidencevery high

Recency5 weeks ago

Info completenesssite · phone · hours

Rating breakdown96% 5-star

✓ VerifiedSource: Google

Our take: The deepest review history on the page, with praise centered on the installers. A confident first quote, but compare monitoring terms with the others.

Website +1210-877-1222 Directions

121 Interpark Blvd Ste 601, San Antonio, TX 78216

#2🕑 Open 6 days/wk↩ Responds to reviews

Alamo Smart Home

4.91,397 Google reviews

Alamo Smart Home is a security and smart-home company at 503 E Ramsey Rd, Suite 103, that describes itself as locally owned and also serves Austin and Houston. Google tags it for security system installation, burglar alarms, fire protection and home automation. Its site advertises Alarm.com monitoring with no contract at $19.99 a month, and reviewers describe IQ panel installs, sensor reuse and a panel upgrade.

What people praise

Salespeople who respect a budget and skip the high-pressure upsell, per one customer
Installers who reused a customer's old window and door sensors
A military discount mentioned by one reviewer
Technicians who explain the app and the new panel

Worth knowing

Google lists no Sunday hours

Reputation scorecardrank in San Antonio

Rating4.9 / 5

Review volume1,397 · 88th

Confidencevery high

Recency13 days ago

Info completenesssite · phone · hours

Rating breakdown97% 5-star

✓ VerifiedSource: Google

Our take: A strong local alternative to the top pick, with warm feedback on sales and installs. Confirm the advertised monitoring terms in writing.

Website +1210-625-6575 Directions

503 E Ramsey Rd Ste 103, San Antonio, TX 78216

#3🕑 Open 7 days

Vivint

4.81,578 Google reviews

Vivint's San Antonio listing shows no street address on Google, only a local phone number. Google files it as a security system supplier and installation service, and it lists daily hours. Reviewers describe sales reps who explain services and monthly fees, installers who remove a previous system and connect the app and garage door.

What people praise

Sales rep explained services and monthly fees in detail, per one reviewer
Installer removed an old system free of charge and packed the equipment for return
Installers who explain the process thoroughly
Open every day of the week, per Google

Worth knowing

A couple of reviewers describe camera problems, one about extra holes after repositioning and one about WiFi dropouts, so ask how placement and troubleshooting are handled

Reputation scorecardrank in San Antonio

Rating4.8 / 5

Review volume1,578 · 93rd

Confidencevery high

Recency8 weeks ago

Info completenesssite · phone · hours

Rating breakdown91% 5-star

✓ VerifiedSource: Google

Our take: Well-reviewed on volume, with sales and install praise. Ask who handles service calls locally, since there is no storefront address.

Website +1210-996-2368 Directions

#4🕑 Open 7 days↩ Responds to reviews

Alert 360 Home & Business Security San Antonio

4.7713 Google reviews

Alert 360 Home & Business Security San Antonio is at 9901 Broadway #111. Google tags it for burglar alarms, closed circuit television, home automation and installation. Reviewers describe bringing offline cameras back online, repairs and system changes, and a visit where the technician wiped down the cameras.

What people praise

Technicians who explain the system clearly
Offline cameras restored quickly, per one reviewer
Courteous help, including reaching cameras for a customer with limited mobility
Fair pricing mentioned by one customer

Worth knowing

One business customer wrote about a service-call charge dispute; the company replied asking for account details to look into it

Reputation scorecardrank in San Antonio

Rating4.7 / 5

Review volume713 · 83rd

Confidencehigh

Recency4 months ago

Info completenesssite · phone · hours

Rating breakdown90% 5-star

✓ VerifiedSource: Google

Our take: A steady option for repairs and service on an existing system. Ask in advance what a service call costs.

Website +1210-610-4570 Directions

9901 Broadway #111, San Antonio, TX 78217

#5🕑 Open 6 days/wk↩ Responds to reviews

APEX Smart Home

4.9495 Google reviews

APEX Smart Home is a home-services company at 8406 Fountain Cir. Its site lists security systems, alarm monitoring, internet installation, water softeners and residential remodeling, and calls the business family-owned and protecting San Antonio homes since 2014. Reviewers describe in-home consultations, clean installs and, separately, water softener installs.

What people praise

A consultation described as clear and without pressure
Crews who cleaned up after a rainy-day install and took their shoes off
Technicians who showed the customer how the system works before leaving
A sales rep named Brittney praised for knowledge by several reviewers

Worth knowing

Some reviews concern water softeners rather than alarms, so ask for security-specific references

Reputation scorecardrank in San Antonio

Rating4.9 / 5

Review volume495 · 73rd

Confidencehigh

Recency4 months ago

Info completenesssite · phone · hours

Rating breakdown96% 5-star

✓ VerifiedSource: Google

Our take: A good option if you like a consultative sales visit and a single team for several home services. Its review base is the smallest on this page.

Website +1210-301-0032 Directions

8406 Fountain Cir, San Antonio, TX 78229

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How the scorecards work

The scorecards use public Google data on the date shown. Rating is the live Google star average. Review volume is how many customers have rated the company, compared with other San Antonio security companies. Confidence weighs the rating by that volume. Recency reflects how recently people are still leaving reviews.

What shapes home security costs in San Antonio?

Security pricing usually combines equipment, installation and a monthly monitoring fee, and the mix depends on how many sensors, panels and add-ons you choose and whether a contract is required. We found no published San Antonio price lists to cite, so this page carries no price table. Alamo Smart Home’s site advertises flat monitoring at $19.99 a month with no contract, which is the company’s own claim. Ask every company for equipment, installation and monthly fees in writing.

Coverage around San Antonio

Alamo Smart Home’s site mentions serving Stone Oak, Alamo Heights, Boerne and the Hill Country, and these companies list San Antonio addresses on Interpark Boulevard, East Ramsey Road, Broadway and Fountain Circle. Searching for home security near me? Each listing shows a phone number and map link so you can reach the closest option.

What to ask before signing a security contract

What do equipment, installation and monthly monitoring cost, in writing?
Is there a contract, and what happens if I cancel or move?
Who monitors the system, and is it 24/7?
Will you provide a monitoring certificate for my insurance company?
What happens when a sensor battery or a camera goes offline?
Can I reuse existing sensors or add devices later?

Frequently asked questions

Do these San Antonio companies reuse existing sensors?

One Alamo Smart Home reviewer said the installers were able to use the old window and door sensors, and an Alamo customer had an older panel upgraded to a newer one. Ask any company whether your existing equipment is compatible before you buy new.

Can a monitored alarm lower my homeowner’s insurance cost?

Chorus Security’s site says every system includes an alarm monitoring certificate to support a homeowner’s insurance discount. Whether and how much your insurer discounts is up to the insurer, so ask for the certificate and check with your agent.

Does Vivint have a street address in San Antonio?

Vivint’s San Antonio Google listing shows a local phone number but no street address. Reviewers describe visits from a sales representative and installers, so ask which local team handles installs and service calls.

What happens when a security sensor stops working?

Reviews show how companies handle service. An Alert 360 customer had offline cameras restored quickly, while one Alert 360 business customer disputed a service-call charge for a battery change. Ask what a service call costs before signing.

The safe default

Chorus Security is the safe default on review history, with Alamo Smart Home a strong local alternative. Whoever you choose, get equipment, installation and monitoring fees in writing and ask who handles service calls.

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