Home Alarm System Deals

Cheap home alarm systems for DIY setup

Our home alarm page rounds up cheap home alarm systems, from complete starter kits to the add-on sensors that grow them. Door sensors, motion detectors and glass-break sensors pair with keypads and sirens, so renters and homeowners can start small and protect another room whenever the budget allows.

Which cheap home alarm systems fit your home?

• Self-monitored kits let you run an inexpensive home alarm system with no subscription through a phone app, while professional monitoring adds a monthly fee.
• Count the doors and windows to cover, then see how many entry sensors and motion detectors each starter kit includes.
• Kits that add cameras need strong Wi-Fi at each camera spot, and a hub with cellular or battery backup keeps the system working during outages.
• Renters should look for wireless sensors with adhesive mounts, which avoid drilling and move easily to the next home.

Which suits you: Apartment dwellers often prefer a small wireless kit they monitor themselves, while larger houses benefit from expandable systems with professional monitoring options.

About this guide: written by DealsVanta as general buying advice. Last edited Oct 26, 2026.