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Top-Rated Home security system pros in Princeton - Updated Nov 2026

Avatar for ADT
ADT
4.5(
892
)
Surveillance Cameras - Install or RepairAlarm or Security System - InstallAlarm or Security System - Repair+5 more

Serving Princeton, WI and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1874

Free estimates

Emergency services offered

"I used to work in the security industry. Once I got married and had kids I definitely wanted a home security system. Bought ADT about a month ago and it’s worked out excellent. No glitches or issues and everyone was awesome in the buying and activation process."
Home Security Essentials
Smart Home Security
Cameras
Our Team
Home Security Essentials

+35

32 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Guard Dog Surveillance Systems
Guard Dog Surveillance Systems
4.2(
23
)
Surveillance Cameras - Install or Repair - For Business

Serving Princeton, WI and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"About 4 years ago we had a video surveillance system installed by a company in Ripon, Wi. It constantly had problems. It got to the point that the owner/installer would not return calls. Brian replace the system with an excellent system that works perfectly. Brian is very knowledgeable an professional in every way. I would recommend him to anyone."
Night Surveillance
Day Time Surveillance
Understanding Camera Resolution and why it matters
Business Peace of Mind
A closer look

+4

Response time2 days
2 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Trifecta Access Controls, LLC.
Trifecta Access Controls, LLC.
5.0(
2
)
Alarm or Security System - InstallAlarm or Security System - Install - For BusinessAlarm or Security System - Monitor+2 more

Serving Princeton, WI and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

Trifecta Access Controls, LLC., is a locally/owner run and operated company with over 20 years experience. We specialize in all facets of home security and audio visual and computing. We understand the value of building life long relationships with our customers. Commercial and residential projects welcome. Prompt reply to your request. Call today for a free estimate 262-757-5170. \n \nGated Entries * Surveillance * Home Theatre * Alarm Systems * and Much More!!!

Near Madison
Another Gate in the Madison area.
Freshly installed pivot gate system.
Outside photo of the same gate as above.
Commercial Slide Gate

+2

Response time1 day
Recommended by100%of homeowners
Avatar for Protect Your Home
Protect Your Home
2.6(
6
)
Alarm or Security System - InstallAlarm or Security System - Monitor

Serving Princeton, WI and surrounding areas

Approved (Corporate)

In business since 1998

Free estimates

Credit card accepted

Protect Your Home is a leader in the home security industry, providing safety and peace of mind to more than 1.5 million families nationwide. Since we emerged in 1998, we've grown from a company of few to having over 2,000 high performance team members, three locations in Indianapolis, a sales center in Kentucky, and over 128 field branches across the country—and we're still growing. \n \nFor nearly 20 years, Protect Your Home has partnered with ADT®, the #1 name in home security. Today, with our national reach, we are one of ADT's biggest partners and the only partner to be designated as an Authorized Premier Provider. \n \nOur commitment to serving others combined with our projects, events, and culture contribute to the development of our team professionally, personally, and financially. \n \nIt's our mission. It's who we are. It's our legacy. \n

SA and Homeowner
Recommended by100%of homeowners
Avatar for Security One
Security One
4.1(
456
)
Alarm or Security System - InstallAlarm or Security System - Install - For BusinessAlarm or Security System - Monitor+7 more

Serving Princeton, WI and surrounding areas

In business since 2007

Credit card accepted

"It went great!  From Travis the sales person to Noah the installer I couldn't have asked for a more professional and through team to deliver my home security needs.  We just bought a new house in a neighborhood that's up and coming but there's still an element that we want to protect our home and valuable from.  Security One helped us find a system that we could monitor while we're away and that would make my girlfriend feel safe when I'm not a home.  We highly recommend them especially Travis and Noah.  Ask for them by name!
"
Pictures
Compare our Compact Door Sensors to our Competitors
Additional Photos
Additional Photos
Additional Photos

+16

Recommended by84%of homeowners
Avatar for Protect America Home Security
Protect America Home Security
3.5(
227
)
Alarm or Security System - InstallAlarm or Security System - Install - For BusinessAlarm or Security System - Monitor+7 more

Serving Princeton, WI and surrounding areas

In business since 1992

Free estimates

Emergency services offered

"They system was installed for the basic, but anything that you wanted needed to be higher upgraded require alot of extra money for every upgrade.
 The 36.99 monthly fee was for only if your system is connected to a landline. I didnnt notice that they charge me $44.99 until my 1st month fee. Thats when I was told that they charge $44.99 because the alram was connected to my cable line instead. I was unaware of the different charges. When tec came out he didnt show up to fix the corrected. Had to call the main company for the no show. So they schedule another appointment and offered 2 window alarms to fix the correction but my bill still is $44.99. Default is that since I didnt have extra money to upgrade to the Pulse, you dont know if you turn the alarm to your house properly. I called the 800 number and they cant tell either!
"
Platinum Package - Protects up To 15 Doors / Windows for FREE
Protect your Whole Home
Simon XT Touchscreen
Recommended by64%of homeowners
Avatar for CSI Secure Solutions
CSI Secure Solutions
4.4(
114
)
Alarm or Security System - InstallAlarm or Security System - Install - For BusinessAlarm or Security System - Monitor+5 more

Serving Princeton, WI and surrounding areas

In business since 2001

Free estimates

Emergency services offered

"I communicated with Rob Calbo for services of a background check with CSI Secure Solutions and he was fantastic.
He spoke with me in a very professional manner and put me at ease right away.
The process was seamless and my request was delivered very efficiently. Within just a few hours of providing them with information, I was able to get feedback. Rob took the time to speak with me and answered all of my questions. 
I will definitely be using them again in the future should the need arise, and I would definitely recommend them as being very efficient, professional and reliable.

"
Background Checks
Employee Check
Background Report
Surveillance
Infidelity Monitoring

+12

Recommended by85%of homeowners
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Home Security Systems FAQs, answered by experts

The cost of home automation averages around $1,000, with most projects falling between $200 and $2,000. The total cost depends on several factors, including the level of automation, brand, system features, home size, and location. For a DIY approach, basic home automation technology can cost between $100 and $500, though the scope and interaction between products may be limited. High-end, all-inclusive systems for larger homes can cost anywhere from $10,000 to $150,000, especially when they include smart appliances like refrigerators and dishwashers that require extensive wiring. Additional costs, such as subscriptions for maintenance services, can also impact the total price. It's often helpful to set a budget and consult with an expert to determine the best options for your home.

There is no “better” option, as it depends on your personal preferences and home’s needs. Wireless systems are much easier to install, making them DIY-friendly. Wired systems offer a more reliable connection that is not tied to a router, but they typically require professional installation.

If you're wondering what you should do with your old security alarm system after installing a new one, one option is to properly dispose of it at an electronics collection facility. Otherwise, if your old system is still in good shape, you can also donate it for someone else to use in their home.

Grounding is a great first step to prevent electrical shock, but you can take it further with GFCI outlets and AFCIs (arc fault circuit interrupters). In particular, AFCIs help protect against the type of electrical arcs that cause fires, like if a mouse chews on a wire or your laptop starts overheating at the wall. These are required in some areas of your home.

Faulty sensors, weak signals, false alarms, and control panel malfunctions are common problems requiring repair.

The Princeton, WI homeowners’ guide to home security system services

From average costs to expert advice, get all the answers you need to get your job done.