Home security designed around your family — not a sales script
From entry-point sensors to full smart-home integration, we build home security systems that make sense for your house and the way you live.
- Custom-designed alarm systems
- Door, window, and motion sensors
- Indoor and outdoor HD cameras
- Doorbell cameras and smart locks
- 24/7 professional monitoring
- Mobile alerts and remote arming
- Help upgrading older systems
- Real local technicians who answer the phone
Protecting what matters most
We start with a free consultation and walk your property with you. Then we design a system around your real risk points and routines — not a generic kit.
Already have a home alarm?
Many existing home systems can be serviced, upgraded, or taken over without a full replacement. We'll evaluate what you have and tell you straight.
New system · Local installation & support
Prima by NAPCO
Smart security. A more connected home.
Meet our new alarm system: an all-in-one touchscreen panel that puts security, live video, and compatible smart-home controls at your fingertips — at home or through the Prima App.
New to Three D?
Start with a system designed for your home and family, professionally installed and supported by our local team.
Ready for an upgrade?
Existing customers can ask about upgrading to Prima. We’ll review your current equipment and explain your options.

Features depend on selected equipment, compatible devices, and service plan. Cameras, smart-home devices, and environmental sensors are optional. Contact us for pricing and upgrade compatibility.
Looking for a home?
Faye Whitney is a Kansas City real estate agent — and part of our family. She'll help you find the right home, and we'll help you keep it safe.
Visit fayewhitney.comProvided independently of Three D Security Systems Plus.
Talk to a local security expert today
Free, no-pressure consultation. We'll help you protect what matters — at home or at work.
Family-owned. Local technicians. Serving Missouri and Kansas.
