How Much Does a Security System Cost?

A security system can help protect your home, family, and valuables from burglars. But is a burglar alarm worth the expense? Let's dig into the nitty-gritty of home security costs to find out when a price becomes a good value.

Professional monitoring is a worthwhile companion for your home security system since it mobilizes people when your alarm goes off. These professionals can send emergency responders directly to your home, which is especially crucial if you're unable to call 911 yourself.

From a cost perspective, the monitoring fee is the most expensive part of most security systems, costing an average of $32.23 a month across the 20+ national and local security providers we've researched over the past two years.

In general, a monitored system that costs less than average is a good value because it typically comes with fewer contracts, but you will pay more upfront for the equipment.

Because monitoring is a monthly fee, it adds up over time, like a cell phone plan.

Here's a quick reference of expenses based on several price points to help you visualize the cumulative cost of home security monitoring:

The contract lays out what you owe if you cancel early, usually a percentage of your monthly monitoring payments. Here's a quick list of termination fees from some major providers in North America:

• ADT: 75%
• Alder: 90%
• Brinks: 100%
• Link Interactive: 75%
• Vivint: 100%

Except for Alder and Vivint, all of the providers above sell contract-free options as well:

• ADT: ADT Self Setup
• Brinks: Google Nest Secure (uses Brinks' monitoring)
• Link Interactive: Contact the company to arrange a no-contract plan

Historically, the biggest complaint about alarm monitoring costs is the difficulty of canceling it. While there are numerous no-contract DIY security systems that don't charge you a dime to cancel, you should always be prepared to thumb through your contract if you opt for professional installation.

If you plan to use a home security system for longer than a particular brand's contract, you won't have trouble switching later. Most contracts roll over to a monthly payment after ending. Still, always check with your provider to make sure it doesn't renew for a longer term.

Another benefit of contracts is that you won't pay a lump sum for your new equipment when you sign up for a monitoring service. 

Check out our guide to professional and DIY installation to learn more about how each type of system approaches contracts and monitoring.

Here's the good news—most national security companies, including Ring Alarm and SimpliSafe, don't charge for installation and activation. This is because customers install and activate the equipment themselves. 

While a few companies charge for these services, the typical home security installation cost is surprisingly small compared to long-term monitoring costs: usually between $99 and $199. The benefit of the higher price is that experienced technicians can install equipment quickly and correctly while you kick back with a good book.

Security equipment is the second biggest expense in a home alarm system and the highest up-front cost. Unlike monitoring, the equipment cost goes up as home sizes increase (at least if you want the same level of coverage).

While we don't have complete equipment costs for local security companies, we do have them for 13 national providers:

As you can see from the table above, a lot of home security equipment is affordable. The price bumps come when security companies sell complex devices or just mark up the price for a greater profit. On top of that, some security cameras require an additional subscription to store video clips on the cloud.

If you want to save money on your security system, we recommend skipping its security cameras, smoke detectors, and carbon monoxide detectors in favor of stand-alone retail versions. They won't talk to your system but are a good compromise that can cut down on short- and long-term costs.

For most systems, there are three essential security devices:

• The base station connects the system to monitoring services. It may or may not require an additional keypad or control panel. Companies usually include this in a starter kit, accounting for around $126 of a kit's price on average.
• Contact sensors (entry sensors) detect when someone enters through a door or window. Most starter kits include at least one or two of these, with larger kits including many more. These are generally affordable, costing around $28 each.
• Motion sensors are the second line of defense inside the house and are handy when someone manages to bypass an entry sensor through a broken window. Most equipment packages include up to two motion sensors, costing around $40 each.

Anything beyond the intrusion detection devices above isn't strictly necessary for a security system, but adds a new way to detect different environmental hazards.

It depends on whether you want a slightly bigger monthly bill or an up-front bill that costs hundreds or thousands of dollars.

Many security companies offer financing to help cover the large up-front costs of equipment. Financing plans raise your monthly monitoring fee but can help folks with limited funds.

They generally require a credit check and are more likely to saddle you with a contract, so you should study the terms carefully before committing to one.

Maintaining a security system doesn't usually cost much more than the price of a few replacement batteries every year or two. Even if your sensors use expensive batteries, you typically won't spend more than $10 a year on maintenance.

Faulty devices generally fall under the warranty, which lasts as little as one year or as long as you pay for professional monitoring (lifetime warranty), depending on the brand. The warranty will cover some or all of the replacement costs.

ADT charges mandatory fees to cover equipment and in-house service calls, but this is relatively rare in the security industry. ADT's fee is part of the monitoring contract and changes based on the value of the equipment in your home. Another notable example is Vivint, which charges for individual service calls if you don't subscribe to a premium service plan.

You should expect to pay local and state taxes (sales or service) for your equipment and monitoring. The exact tax amount varies by location, so look out for this line item on account statements to find out what you pay.

Home security systems usually aren't tax-deductible due to the nuances of exclusive use. Learn more about security tax deductions.

Much like taxes, alarm permits vary from place to place. For example, folks in New York City don't need a permit, but Phoenix residents pay $17 each year. The idea behind permits is to reduce false alarms that divert city resources.

Permit or not, you might be on the hook for fines if your security system causes too many false alarms. A false alarm fine typically ranges from $50 to $500 depending on the city and the number of instances in a calendar year.

Sources

1. FBI, "Offense Analysis, Number and Percent Change, 2018–2019," September 2020. Accessed April 22, 2025.