ADT vs. Guardian Protection Security Systems

If you've started shopping for a home security system, ADT is probably one of the first names you've come across. And for good reason — they've been in the business for over 150 years, making them one of the most recognized names in home security. Guardian Protection is no slouch either, though. With more than 75 years in the industry, they've grown into one of the largest privately held security companies in the country. So which one actually does a better job of protecting your home?

We tested both providers in our own home to get firsthand experience and find out. Now that we know both systems inside and out, we’re here to report back to you. We’ll check out some similarities that the systems share, as well as the key differences, features, and general pricing you can expect. Let’s dive right in!

An Overview of ADT vs. Guardian Protection

Home Security Expert Rob Gabriele Tests ADT Home Security System

Many times, privately held companies provide better products at a lower cost since they don’t need to worry about what shareholders think. Unfortunately, that’s just not the case when we stacked up ADT against Guardian Protection. From their pricing to their capabilities, ADT beat them out in just about every category. To give you a better idea, here’s a quick overview comparing ADT and Guardian Protection in a few key criteria for choosing a home security system:

• Price: While ADT and Guardian Protection have similar prices with most starter systems costing around $600 and monitoring starting at $49.99 per month, we found we got more value from ADT.
• Contract: Both ADT and Guardian Protection require a contract, but ADT’s is two years shorter at 36 months compared to 60 months.
• Equipment: ADT creates a more cohesive system with its equipment than Guardian Protection. That’s largely because it’s all either designed in-house or provided by their partner, Google Nest. Guardian Protection, on the other hand, offers all third-party equipment.
  
• Home Automation: Speaking of equipment that works cohesively, ADT also offers more cohesive home automation capabilities. Their Google partnership means they integrate flawlessly with all Google Home products. ADT is also Z-Wave compatible, meaning it can work with over 4,000 third-party smart home products. Guardian Protection only offers a handful of home automation devices.

>> Learn More: The Ins and Outs of Home Security Contracts

ADT and Guardian Protection Similarities

After thoroughly testing and reviewing ADT and Guardian Protection, we were genuinely surprised to find as many similarities as we did. There were definitely more differences, because, like we said, ADT offers a higher-quality security system, but a few similarities that stood out to us include:

• Wireless Equipment: Both ADT and Guardian Protection offer wireless equipment, giving you the flexibility to have your equipment installed anywhere it’s needed to keep your home secure.
• 24/7 Monitoring: Although it should be expected, we’re glad to see that ADT and Guardian Protection offer 24/7 professional monitoring. That way, even if you’re busy, your home stays protected and every alert gets a response.
• Cellular Backup: Regardless of the professional monitoring plan you sign up for, you’ll get cellular backup from both providers as long as you’re subscribed to a plan. This keeps your system operational and in communication with the monitoring centers even if your Wi-Fi goes down.
• Mobile Apps: You can control either system remotely through their respective mobile apps. We like ADT’s app more, though, as it has a more modern interface and more home automation capabilities.
• Floodlight Security Cameras: We find this more of a niche piece of security equipment, but ADT and Guardian Protection offer floodlight security cameras.

ADT and Guardian Protection Differences

ADT even has entryway sensors that match your trim colors.

Let’s face it, when you’re comparing two products, you care a lot more about the differences than the similarities. After all, the differences are what’s going to help you decide which one’s right for you. So, let’s dig into and go over the key differences between ADT and Guardian Protection. We’ll get into all the details so by the end you’ll know which provider is right for you.

Pricing

Sticker shock is real when it comes to home security — especially with Guardian Protection, which keeps their pricing under wraps. You'll need to contact them directly for a custom quote before you see a single number on their site. ADT takes a more transparent approach with pricing listed on their website, though their model has a few nuances worth knowing about. In almost every case, ADT comes out ahead on price. Here's a quick look at how their starting packages compare:

ADT’s Pricing

First up, ADT’s costs. ADT requires a consultation either through a phone call or in-home visit to give you a custom quote, but we find that systems typically start at around $600 before discounts. That’ll include a base station, a couple of entry sensors, a motion sensor, a yard sign, stickers, and some security cameras.

Monitoring prices start at $49.99 per month, but the final price will be based on your included equipment and features. That puts them at the same price as Guardian Protection, although we find ADT adds more features in their base package.

Guardian Protection’s Pricing

Guardian Protection's pricing is right on par with ADT’s. Monitoring fees also start at around $49.99 per month and systems start at about $499 upfront. The big difference is in the value we received. As we mentioned, ADT’s equipment provided a better overall experience and it felt more robust. We will say we appreciate Guardian Protection’s three- or five-year price-lock guarantee.

Equipment

Here’s everything that came with the Google Nest Cam we bought with our ADT security system.

We’ll come out and say it: ADT makes some of our favorite home security equipment in the industry. Every device we buy from them feels sturdy, performs as expected, and has a streamlined design that fits discreetly in our home.

While Guardian Protection’s equipment certainly isn’t bad, ADT is a step above. Guardian Protection buys most of their equipment from Alarm.com, which is a reputable company, but there’s something to be said about equipment that’s designed and manufactured to work cohesively as a complete system. That’s what ADT has and what we feel Guardian Protection is missing.

Home Automation

We’re home automation fanatics, so a security system that integrates with our current smart home equipment is a big plus for us. Home automation can improve the security your security system provides too, though. So, it’s not a factor to overlook even if your security system is your first smart home purchase.

>> Read More: 2026 Guide to Home Automation Systems & Smart Home Products

ADT’s Home Automation

With ADT’s partnership with Google, it’s hard to beat them at the home automation game. Guardian Protection’s Geo-Service technology, which we’ll talk about soon, is definitely interesting, but ADT offers a lot more than a single standout feature. There are tons of third-party smart home products they can integrate with beyond Google smart home products thanks to its Z-Wave compatibility.

ADT’s standout home automation feature is Trusted Neighbor. With it, you can automatically let specific people in your home using the Google Nest Cam’s facial recognition. We set ours to let our dog walker in every Thursday morning at 10:30 a.m. During confirmed alarms, our system could also let our neighbor in so they could see what was going on.

Guardian Protection’s Home Automation

Guardian Protection’s mobile app clearly displayed all of the key information about our home’s security.

The standout home automation feature during our time testing Guardian Protection was their Geo-Service technology: A location-based “geofence” feature that uses your smartphone location to send mobile reminders. For example, did you forget to arm your security system or turn off the lights before heading to work? After crossing that virtual “geofence” barrier, you’ll immediately be notified of your mistake (which can be a lifesaver on those hectic mornings). For another provider that offers geofence technology, check out our review of Frontpoint.

Installation

Before the tech installed our entry sensors, we took a picture of them with a quarter for scale.

Both ADT and Guardian Protection require professional installation. Thankfully, they regularly include it for free when you buy a new system, but it can make it difficult to add more products down the line. You’d need to pay for those new products to be installed. That said, neither is new to offering professional installation, so expect a top-notch professional installation regardless of who you go with.

Contracts

ADT and Guardian both require long-term contracts. They used to both start at three years as well. That’s no longer the case since Guardian Protection extended its three-year contract to a five-year contract.

ADT went the opposite direction. They still require a three-year contract for the most part, but if you live in California, you can actually get a two-year contract instead. Needless to say, we prefer the flexibility that ADT offers.

>> Read About: Best No-Contract Home Security Systems of 2026

Availability

ADT is a nationwide brand available anywhere in the U.S., while Guardian Protection serves a more limited footprint. Guardian is currently available in select states — so if you're not in their service area, ADT is your only option between the two. Here's where Guardian Protection is currently available:

• Delaware
• Florida
• Illinois
• Indiana
• Maryland
• North Carolina
• Ohio
• Pennsylvania
• West Virginia
• Texas

Thankfully, one of our editors lives in Florida, so we were able to test a Guardian Protection security system.

Which System Is Best for You? ADT or Guardian Protection

We know that’s a lot of information to take in. Overall, though, we prefer ADT over Guardian Protection. They offer more flexible plans, higher tech equipment, and more advanced monitoring capabilities. ADT also gave us more bang for our buck.

If you live in one of the 10 states that Guardian Protection services, we do like their three- or five-year price-lock guarantee. That means even if they raise their monitoring rates, you won’t see that price increase until those two or three years are up depending on which option you choose. However, ADT has been lowering their monitoring rates recently, and if you sign up for an ADT contract, you can cancel it due to an increase in your monitoring rates. It’s not a price-lock guarantee, but it prevents a situation where you can no longer afford your payments due to a price increase.

Do neither ADT nor Guardian Protection seem like the right system for you? Check out our guide to choosing a home security system where we walk you through the steps you should take to find the perfect system for protecting your home.

FAQs About ADT vs. Guardian Protection