Home Security · Local service

24/7 Home Security Monitoring in California

Compare professionals serving California.

Homeowners in California researching 24/7 home security monitoring face different prices, rules, and provider availability across Los Angeles, San Diego, and smaller communities. This local guide connects the national 24/7 home security monitoring advice with California labor costs, licensing checks, cities, and professionals who serve the state.

Professionals serving California

Who to Call in California: Top Home Security Companies

Short profiles of every provider on this page - what each one handles, how customers rate them, and how they fit the California market for 24/7 home security monitoring.

1.

US 911 Home Security

4.9(1348 reviews) VerifiedFeatured

US 911 Home Security connects California homeowners to vetted local home security pros through a single nationwide line. Core services run from 24/7 monitoring to alarm installation, so most residential jobs stay in-house. Demand around Los Angeles and San Diego keeps California calendars full, so early quote requests get the best slots. As with any California hire, weigh US 911 Home Security's written scope and warranty against two competing bids.

(214) 702-5214
2.

Sentinel Home Security

4.5(40 reviews) Verified

On California provider lists for 24/7 home security monitoring, Sentinel Home Security earns its place near the top. Its business details carry a verified badge in this directory, checked by our listings team. Before booking, credentials are easy to check: California contractor licensing runs through the Contractors State License Board (CSLB). As with any California hire, weigh Sentinel Home Security's written scope and warranty against two competing bids.

(213) 671-0315
3.

Safeguard Security Systems

4.6(51 reviews)

Working across California, Safeguard Security Systems has turned dependable home security service into repeat business. The company quotes work in writing up front, which makes it easy to compare against other bids. Its California footprint concentrates where the work is - Los Angeles, San Diego, and the communities in between. Call to confirm availability in your part of California, and ask Safeguard Security Systems for references from recent local jobs.

(714) 782-3415
4.

ShieldPoint Home Security

4.7(62 reviews)

A shortlist for 24/7 home security monitoring in California is not complete without ShieldPoint Home Security. Core services run from security cameras to video doorbell, so most residential jobs stay in-house. Quotes track local labor costs - BLS pegs the California median wage for security and fire alarm systems installers at $71,570 a year. Call to confirm availability in your part of California, and ask ShieldPoint Home Security for references from recent local jobs.

(480) 806-2841
5.

Watchtower Security Services

4.8(73 reviews) Verified

California residents weighing 24/7 home security monitoring often end up comparing Watchtower Security Services against the rest of the field. Customers rate it 4.8 stars across 73 reviews and past clients single out clean, tidy work areas. Quotes track local labor costs - BLS pegs the California median wage for security and fire alarm systems installers at $71,570 a year. Call to confirm availability in your part of California, and ask Watchtower Security Services for references from recent local jobs.

(407) 751-1353
6.

Homefront Security Co.

4.9(84 reviews)

When home security problems cannot wait, Homefront Security Co. is a name California homeowners pass along. A 4.9-star average over 84 reviews reflects how it treats repeat customers. Its California footprint concentrates where the work is - Los Angeles, San Diego, and the communities in between. A quick call tells you how soon Homefront Security Co. can start in your corner of California and what a visit will cost.

(704) 419-7145
7.

Beacon Home Security Pros

4.5(95 reviews)

Beacon Home Security Pros ranks among the California home security companies homeowners shortlist most often. The company quotes work in writing up front, which makes it easy to compare against other bids. Quotes track local labor costs - BLS pegs the California median wage for security and fire alarm systems installers at $71,570 a year. Request a written quote from Beacon Home Security Pros and at least two other California providers before you commit.

(813) 773-8616
8.

IronBolt Security Solutions

4.6(106 reviews) Verified

Homeowners across California regularly turn to IronBolt Security Solutions when they need 24/7 home security monitoring. Core services run from 24/7 monitoring to alarm installation, so most residential jobs stay in-house. Labor drives most home security pricing here: the California median for security and fire alarm systems installers is $71,570 a year (BLS OEWS 2025), 19% above the national figure. Compare IronBolt Security Solutions against the rest of this California list on licensing, reviews, and the clarity of its quote.

(612) 457-1121
9.

AlertLine Home Security

4.7(117 reviews)

Few home security providers serving California come up in side-by-side comparisons as often as AlertLine Home Security. Its team handles alarm installation and security cameras, alongside the rest of the usual home security workload. Demand around Los Angeles and San Diego keeps California calendars full, so early quote requests get the best slots. Put AlertLine Home Security side by side with the other California companies on this page, then let written quotes settle it.

(602) 580-0469
10.

TrueGuard Security Systems

4.8(128 reviews)

California homeowners researching 24/7 home security monitoring will quickly run into TrueGuard Security Systems - and for good reason. Reviewers most often mention on-time arrival and friendly, professional technicians. Before booking, credentials are easy to check: California contractor licensing runs through the Contractors State License Board (CSLB). As with any California hire, weigh TrueGuard Security Systems's written scope and warranty against two competing bids.

(512) 798-8184

California Home Security Market at a Glance

Population

39,538,223

#1 largest state, 2020 Census

Median wage: Security and Fire Alarm Systems Installers

$71,570/yr

19% above the national median of $60,070

License verification

Contractors State License Board (CSLB)

Contractors are licensed at the state level - verify before hiring.

Largest metro areas

Los Angeles · San Diego · San Jose

Where California demand concentrates

Sources: U.S. Census Bureau, 2020 Census (April 1, 2020); U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics (OEWS), 2025.

How much does 24/7 home security monitoring cost in California?
24/7 Home Security Monitoring pricing in California depends on scope, materials, local labor rates, and the provider. Costs in larger metros often run higher than in rural areas. Compare at least three written quotes from California providers.
Are home security contractors in California licensed and insured?
Licensing and insurance requirements for home security work vary by state and municipality. Before hiring any California home security company, confirm it holds the proper state license, carries liability insurance, and can provide references.
How do I choose the best home security company in California?
Compare provider ratings, read what past customers liked and disliked, verify licensing and insurance, and request written quotes from several California companies. The list above ranks top-rated home security providers serving homeowners across the state.