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Avatar for Frontpoint
Frontpoint
4.7(
8,819
)

Serving Keystone, SD and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"I self installed our FrontPoint system. It went smoothly and my questions were answered efficiently and professionally by the FrontPoint staff. I would highly recommend FrontPoint as a home security system."
Recommended by93%of homeowners
Avatar for Security One
Security One
4.1(
456
)

Serving Keystone, SD 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!
"
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Compare our Compact Door Sensors to our Competitors
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+16

Recommended by84%of homeowners
Avatar for Protect Your Home
Protect Your Home
3.3(
325
)

Serving Keystone, SD and surrounding areas

In business since 1998

Credit card accepted

"We like their service. We haven't had any problems. They are very good. This was the first time we've had an alarm/security system in our home. The supplier is ADT. I like that I can set my alarm every night before I go to bed."
Protect Your Home Vehicle
Recommended by63%of homeowners
Avatar for Protect America Home Security
Protect America Home Security
3.5(
227
)

Serving Keystone, SD and surrounding areas

In business since 1992

Free estimates

Emergency services offered

"About 4 years ago I need my home protected by something other than my dog while I was not home looking for a job. I needed something affordable, simple to use and install my self as my house was not prewired. I found Protect America and it had all I needed and more. Over the years I have added to my system more sensors, motion detectors, camera's, carbon monoxide sensor, and monitored smoke detectors. All of it was simple enough to do with some help with their Installation Technician walking me though everything on the phone. I have had other companies try to get me to switch to them, but what I have works and they could not beat the price so I told them no thanks."
Platinum Package - Protects up To 15 Doors / Windows for FREE
Protect your Whole Home
Simon XT Touchscreen
Recommended by64%of homeowners
Avatar for SkyCover
SkyCover
5.0(
5
)

Serving Keystone, SD and surrounding areas

In business since 1998

Free estimates

Emergency services offered

"LOVE this system!  Customer service was extremely nice and made my experience effortless.  Speaking of effortless, the self-installation was super easy.  It took me less than 30 minutes from start to finish to get my system up and running.  Highly recommended!"
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Recommended by100%of homeowners
Avatar for HelloTech: Tech Support To Your Door
HelloTech: Tech Support To Your Door
4.2(
445
)

Serving Keystone, SD and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"The work went very well. I believe the job was more difficult than the work described in the estimate. There was no additional charge. Alvin answered every question. He responded to my emails promptly. He even came back to reset the new system after my dog ate one of the remotes. Two months later my 10 year old TV quit. I had several questions about a replacement TV, which was returned based on Alvin's advice. I will make an appointment to have Alvin install the new TV."
Recommended by87%of homeowners
Avatar for AIO Integrations LLC
AIO Integrations LLC
4.6(
18
)

Serving Keystone, SD and surrounding areas

In business since 2020

Emergency services offered

Credit card accepted

AIO provides computer support services for all PC platforms including Apple OSX/iOS, Microsoft Windows, and Google Android devices. \n\nWe are the only company on Angi.com with a BBB A+ rating providing nation-wide IT support on-site/remote services from over 1500 locations. You can call us directly at 832-402-1335, option 1 for sales, to be connected to a sales engineer if you need immediate help. You can also visit our website at https://aiosupport.net. We look forward to helping you!

Helping a Victim who was being Cyber-stocked
WIndows Update Broken
Computer Tune-up
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Recommended by91%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,688
)

Serving Keystone, SD and surrounding areas

In business since 1971

Credit card accepted

"Well, the first time the replacement was ordered it was the wrong one, which of course, delayed the installation a week. When it was finally installed I had to pay an additional $850 for code upgrades. This I was not informed of by Home Shield. Then we noticed that there was water on the garage floor and found that the pipe coming in from the wall was leaking at the wall so had to call the plumbing company back out to fix it. They first tried to say it was not their fault but since there wasn't a leak before they installed they did fix it. I have used Home Shield a few times before and never had a problem. Some of the companies they use are not the best so you have to research them before you commit. I have found HS service to be good if you do your homework. At the end of the day I was without hot water for almost 3 weeks but it was do to the plumbing company they sent out."
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+2

Recommended by65%of homeowners
Avatar for My Computer Works, Inc.
My Computer Works, Inc.
4.0(
630
)

Serving Keystone, SD and surrounding areas

In business since 2005

Free estimates

Credit card accepted

"I only wish that their fee wasn't quite so high. There was a lot more that I needed to learn but couldn't afford it at $85 an hour. This is the most I've ever paid for computer work in my home ."
Training and Support
Recommended by86%of homeowners
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Home Security Systems questions, answered by experts

Your best bet is to install a bracket that secures to the bottom of the unit and the side of your house. You should still secure the AC unit in the open window using some of the other methods already listed, but a bracket is best to ensure that it stays put—both during operation and in case of an attempted theft.

A potential weak link in any security system is poor connection strength or dropped signals, particularly in the case of a fully wireless system. You also want to ensure a reliable connection to get a hold of your service provider quickly. Also, you should exercise caution when handing out sign-in credentials to people outside the household.

Instead of a security door, you might opt for a heavy-duty screen door made from durable mesh, which allows better sunlight and airflow. Additionally, you could enhance security by installing strong locks on your existing door. A double-cylinder deadbolt provides robust security; however, be aware that some local laws prohibit them due to safety concerns during emergencies.

It depends on your specific needs. A security system typically includes alarms, sensors for windows and doors , and 24/7 monitoring services, offering comprehensive protection with immediate response to potential threats. Cameras, on the other hand, primarily provide visual surveillance and evidence collection. A security system is preferable if your primary concern is deterring intruders and receiving real-time alerts. Cameras are ideal for monitoring and recording activities but might offer a different level of active protection. In many cases, a combination of both—a security system with integrated cameras—provides the most robust home security solution, offering prevention and documentation.

To prevent false alarms, motion detectors need proper placement and settings. Start by installing them away from pets and windows where outside movement could set them off. Adjust the sensitivity settings to reduce the likelihood of it detecting minor motions. Consider using dual-tech sensors, for example passive infrared (PIR) and microwave technology, to improve accuracy and reduce false alarms. And don’t forget regular maintenance—cleaning the sensor and checking for any obstructions can go a long way in making sure your detectors run smoothly.

The Keystone, SD homeowners’ guide to home security system services

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