What to ask about installation and monitoring
Do you want a self-monitored or professionally monitored system? Making this decision is a critical first step in the process of choosing the best company and system for your needs. Many of the best home security companies offer both types of monitoring, but your choice will affect both your costs and your daily experience with the system.
How is the system monitored?
Most security systems give you the option of self-monitoring or professional monitoring, and you should know your options and the associated costs before you sign a contract. Even self-monitoring systems sometimes charge a small monthly or annual fee.
Professional monitoring is more expensive than DIY monitoring and requires a monthly fee. However, you get 24/7 monitoring, and the peace of mind you receive may be worth the extra cost.
How does the system communicate with the monitoring station?
Older home security systems used the home telephone line to communicate with the monitoring station. The old copper-based telephone network nearly always worked, even during power failures, but its major weakness was that it was often easy for a burglar to find the telephone line running into a home and cut it, disabling the phone and the alarm.
Although these analog communication systems are still available, many households now no longer use any kind of landline. If that’s the case in your home, there are two primary ways that a modern home security system can communicate with the monitoring station digitally: a cellular communications network or your home’s Wi-Fi system, which relies on your internet connection.
Home security systems can communicate via Wi-Fi, a cellular connection or a landline.
Both Wi-Fi-based and cellular-based systems can transmit more data than older, landline-based systems. Wi-Fi-based communication can mean a lower cost for you, but this form of communication may be vulnerable to power outages, and an enterprising burglar could still cut the internet cable and knock out your system.
Cellular communication lacks these vulnerabilities, but it’s important that you make sure that your equipment is up to date; look for an LTE or 5G system. Some security companies offer products with dual-path connectivity that combine Wi-Fi- and cellular-based communication.
What is the average response time to an alarm?
If you pay for professional monitoring, you’re counting on a team of responders who are available 24/7. When a sensor goes off, you want to know how long the company will take to send you a notification or alert emergency services. Ideally, this is done in less than a minute — in situations like these, every second counts. If the company can’t guarantee a fast response time, you may want to look elsewhere.
How is the system installed?
Many basic home security systems offer the option of self-installation, but others must be professionally installed. If you’re installing the system yourself, ask about any resources and support the company may offer.
Even though these systems are designed to be simple for the average person to install, it’s nice to know you can ask questions if you have any problems. Check with the company to see if it offers free technical support. If you need or want professional installation, ask about the cost — it may or may not be included in the upfront equipment price.
Wireless home security systems are typically designed for do-it-yourself installation, while most hard-wired systems require a professional.
» COMPARE: Security system installation: DIY versus professional
What to ask about contracts, pricing and expertise
You want to go with a contract that fits your plans. Be sure to ask about contract lengths, cancellation policies and whether you own or lease the equipment.
What are the terms of my contract?
While the trend of two- and three-year contracts is starting to abate, you may still have to sign a contract, and it’s essential you know what you’re signing. How long will you be legally obligated to keep paying for the system? What if you’re not satisfied with the services? What if you move? Are you allowed to move the equipment to your new house or will it negate the warranty?
Under some contracts, you lease the equipment and don’t actually own it. If you rent or know you may move in the near future, make sure you choose a company that lets you transfer service without breaking the contract.
How much does the system cost?
This question may seem like a no-brainer, but you need to know all the costs associated with your system. Many systems are customized for your specific space, and the more sensors, security cameras and monitors you install, the larger your bill will be.
There may be additional charges for installation, maintenance and monitoring that you should factor in when budgeting. Typically you can expect to pay $15 to $70 a month for monitoring.
» MORE: How much does a home security system cost?
How long has your company been in business?
Just because a business is new doesn’t mean that it can’t provide quality service, but a company that has been around a while has the benefit of experience. You can also look at customer and professional reviews to get an idea of average customer satisfaction. If you need a large, complex system, choosing a security company with an established reputation may be your best bet.
What to ask about equipment
Each household has different needs when it comes to equipment such as sensors, smart controls and other components. Make sure the company you choose can reliably guide you in choosing the right setup for your situation.
What types of sensors and detectors are available?
Motion sensors are one of the most common components of a home security system. Typically relying on infrared technology, these sensors can detect motion in or around your home. However, home security systems may also incorporate several other kinds of sensors.
- Window and door sensors send an alert when a door or window is opened. You’ll need a sensor for each window or door you want to cover.
- Glass break sensors detect the sound or vibration of glass breaking. These sensors can cover multiple windows or glass doors in a single line of sight.
- Heat and smoke detectors scan for changes in temperature and air quality. You’ll likely need several to cover all areas of your home.
- Carbon monoxide sensors detect the presence of carbon monoxide, a dangerous gas that you can’t identify by sight or smell.
- Moisture detectors look for high moisture levels in flooding-prone areas of your home, such as bathrooms and basements.
How many sensors do I need?
The number of sensors you need varies based on the layout of your home and how much security you feel you need.
For example, some people opt for sensors only at their front and back doors, while others may want them in additional places like the garage, around windows or in the yard. Some customers may only want door and window sensors, while others are looking for a system that can also detect fire, flooding or carbon monoxide.
A good security company considers your property, budget and security risk and gives advice on how many sensors are reasonable.
What warranties do you offer?
Even the best equipment needs maintenance at some point, and you need to know whose responsibility that is when it happens. Make sure you ask what kind of warranty the equipment is under and what your costs will be after the warranty period is over.
Note that there might be different warranties given by the equipment manufacturer and the company you buy the equipment from. It’s also worth asking how long you’ll have to wait before a technician addresses a warranty concern. This should typically be done within a day or two of the malfunction.
How often do you test your equipment?
Most home security companies recommend you test your equipment at least once a month to ensure the sensors, cameras and alarms are working as they should. You can typically do this yourself, but you’ll want to have the equipment tested by a trained technician periodically.
What happens if I lose power?
The best alarm system is worthless if it doesn’t work when you need it. That means it needs to have backup power and a reliable method of communicating with the monitoring center.
Nearly all alarm systems today have battery backups that let them work even during a power failure. It’s important to know how long the system will run on battery power and how often the batteries need to be replaced. Most systems issue an alert when the battery is nearing the end of its life.
Do you offer home automation?
Home automation, or the ability to control your system through Wi-Fi with an app, is becoming more popular, and many security companies are offering this feature. These apps let you turn lights on and off, lock doors and monitor your security system. Because this relies on Wi-Fi, especially for video monitoring, you need a good internet connection for optimal performance.
With this service, you’ll also have to consider your online security and how to best protect yourself. The California Department of Consumer Affairs (DCA) recommends checking “whether the alarm company provides firmware, an encrypted network, or a strong firewall to prevent hackers from obtaining access to your video feed.” If these provisions are not in place, you run the risk of your video feed being hacked.
FAQ
What are the top three home security systems?
According to ConsumerAffairs’ methodology, the top three companies offering home security systems for 2026 are Vivint, ADT and Vector Security.
What security system do burglars hate?
Security company ADT recommends several strategies to deter burglars, including a comprehensive security system involving security cameras, door and window monitoring, outdoor lighting and an alarm system.
How do you choose the right home security system?
To choose the right home security system for your needs, consider what types of sensors and detectors you want (for example, door and window sensors, motion sensors, security cameras), how many sensors you need for your space, and whether you prefer to monitor the system yourself or pay for monitoring service. Look for a security company that can deliver what you’re looking for within a budget you can afford.
Bottom line
Burglaries are one of the most invasive property crimes. According to the FBI, more than half of burglaries involve forcible entry. Most of the time, the intruder will enter through a first-floor door or window. A security system is one way to deter burglars and keep your home safe, and knowing the right questions to ask helps you find the right system for you.
Article sources
ConsumerAffairs writers primarily rely on government data, industry experts and original research from other reputable publications to inform their work. Specific sources for this article include:
- California Department of Consumer Affairs, “Consumer Guide to Alarm Companies.” Accessed April 14, 2026.
- Federal Bureau of Investigation, “Burglary.” Accessed April 14, 2026.







