Security Systems in Allen, TX
Serving Allen from nearby McKinney since 2000. Home security, business systems, and monitored surveillance trailers, backed by real local service.
Preventive Security Systems protects Allen homes and businesses with locally installed, professionally monitored security. We are a McKinney-based company that has served Collin County since 2000, and Allen is a short drive down US-75. We install alarm systems, security cameras, access control, and solar-powered surveillance trailers, all backed by 24/7 professional monitoring through a UL-listed central station. We are TDLR-licensed (B09951), bonded, and insured.
Home Security
Alarms, cameras, video doorbells, and smart locks with 24/7 monitoring.
Commercial Security
Business cameras, access control, and commercial alarms, monitored 24/7.
Surveillance Trailers
Solar-powered mobile trailers with live monitoring and talk-down.
Home security in Allen
Allen is an affluent, high-delivery suburb, from Twin Creeks and Watters Crossing to the newer builds on the east side, which makes porch piracy and package theft a regular headache. We install alarm panels, cameras, video doorbells, and smart locks, then tie them to round-the-clock monitoring so you see who is at the door and get a real response if someone forces one. Residential monitoring starts as low as $19.99 a month. We also connect home automation through Alarm.com, so you can lock up, adjust the lights, and check your cameras from your phone whether you are at work or on vacation. See our home security options.
Commercial security for Allen businesses
Allen’s business core runs on retail and hospitality, and those owners have plenty to protect. We build business camera systems, access control, and commercial alarms, and we monitor them 24/7 through a UL-listed central station. Commercial monitoring starts as low as $29.99 a month, a rate almost nobody in DFW publishes. For an office or medical suite, we add access control that logs who opened which door and lets you cut off a credential the moment an employee leaves. Explore our commercial security systems.
Retail and event security in Allen
Allen draws crowds. Allen Premium Outlets, Watters Creek, and the Allen Event Center bring steady foot traffic, and the theft that follows it climbs through the holidays. We set up camera coverage across sales floors, entrances, and parking areas, add access control for stockrooms and back offices, and monitor alarms 24/7 so an overnight break-in gets a real response instead of a siren. Texas strengthened its Organized Retail Theft law in September 2025, so for Allen retailers, clean footage that can build a case is worth more than ever.
Mobile surveillance trailers in Allen
Allen’s ongoing retail and residential construction leaves job sites and equipment exposed overnight, when most theft happens, and busy retail parking lots need eyes during peak season too. Copper theft has grown into a metro-wide problem costing millions (NBC DFW). Our solar-powered surveillance trailers cover a site or a lot with action-activated cameras, live monitoring, and talk-down, and they deploy with no power or fencing required. Learn about our mobile surveillance trailers or read the DFW trailer cost guide.
Allen alarm permits
Allen requires you to register a monitored alarm system with the city each year, and an unregistered system can lead to fines. We take care of that registration for you as part of the install. You can confirm current requirements with the City of Allen.
Why Allen chooses a local security team
We are a local Collin County team, not a national brand routing your call out of state. A local technician handles your install and service, our contracts flex month-to-month or long-term, and financing is available. Every job starts with a free on-site consultation and a straight estimate. We choose outdoor equipment that holds up to North Texas storms and heat, so your cameras still work when the weather turns.
Frequently asked questions
Do I need an alarm permit in Allen?
Yes. Allen requires annual registration for monitored alarm systems, and operating without one can bring fines. We handle registration for you as part of the install and can point you to the City of Allen for current requirements.
Does someone actually monitor my system?
Yes. Your system is backed by 24/7 professional monitoring through a UL-listed central station, so a real person responds when an alarm trips. Our surveillance trailers add live talk-down so an operator can respond on the spot.
How much does security monitoring cost in Allen?
Residential monitoring starts as low as $19.99 a month and commercial monitoring starts as low as $29.99 a month. Equipment, installation, and surveillance trailers are quoted per job after a free on-site consultation.
Can you help with package theft in Allen?
Yes. Video doorbells and monitored outdoor cameras are the most effective tools against porch piracy, which hits high-delivery suburbs like Allen hardest. We place and configure them so you get a clear view and an alert when someone approaches.
Can you cover a store or parking lot during a busy season?
Yes. Alongside fixed cameras, our mobile surveillance trailers can watch a retail lot or event overflow area during peak periods, with live monitoring and talk-down, then move on when the season ends.
Protect your Allen home or business
Book a free on-site consultation and we will design a system around your property in Allen. No pressure, no hidden fees.