Every price on this page is our published price. No teaser rate, no lease, no three-year agreement.
A typical installed system runs $1,700 to $2,100 all-in. Below is exactly where that comes from — kits, components, installation, monitoring — so you can build your own number before you ever call us.
Start Here
The Three Kits
Hub 2 Plus, motion detection, entry protection, key fob, indoor siren. The smallest sensible system — it protects the door people actually use and the room they would walk into.
Apartments · Condos · Small homes View kit →
Adds a second motion detector, a second fob, and an outdoor siren — which matters more than people expect. It tells the neighbourhood, not just the room.
The common choice for a family home View kit →
Adds the KeyPad TouchScreen — $529 on its own — plus wider motion coverage. Buy the keypad separately and you pay more than the kit costs.
Larger homes · Households without the app View kit →All Three Include The Hub
The hub is the part that actually watches the house and calls for help — it is not an accessory, and it is not optional. Every kit has one, configured. None of them require a contract, and you own everything from day one.
Build Your Own
Component Prices
The One That Matters
Why MotionCam Is Worth $124 More
A MotionProtect Plus is $175. A MotionCam is $299. Most quotes steer you to the cheaper one, and for most homes that is the wrong call.
When a standard detector trips, the monitoring station knows only that something moved. Nobody can see anything. Police receive an unverified alarm — and unverified alarms are deprioritized, because the overwhelming majority are false. In many jurisdictions they carry fines too.
When a MotionCam trips, a photo burst reaches the station in under nine seconds. An operator looks at it and says: that is a person in the kitchen at 2am. That is a verified alarm, and verified alarms get priority dispatch.
You are not paying $124 for a camera. You are paying it for the difference between a call police might get to and one they hurry to. Put MotionCams where an intruder would actually walk. Standard detectors everywhere else.
Installation
From $390
Wireless Means No Wall Surgery
No cutting into finished walls, no rewiring, no fishing cable through a 1987 remodel. That is why installation costs a fraction of a traditional wired system in an existing home.
From $390 covers design, mounting, configuration, testing every device, monitoring registration, and sitting with you until you can actually use it. Larger systems with perimeter detection, cameras, or Control4 integration cost more — and we quote it fixed before we start, tax included.
You can also install it yourself. Devices pair by QR code in the app, and our support is free to everyone — whether you bought from us or not.
End To End
What A Real System Costs
Monthly
Monitoring — And The Part Nobody Advertises
This is where the traditional alarm industry makes its money, so it is worth understanding what you are being sold elsewhere.
The national brands typically lock you into a multi-year agreement. The equipment is often leased — stop paying, it stops working, you hand it back. That attractive install price is subsidised by a contract you cannot leave.
We do not do that. Monitoring is $44.99 per month, month to month, cancel any time. You own every device from the day it goes on the wall.
And read this twice: you do not have to buy monitoring at all. Every Ajax system self-monitors through the app for free — push notifications, photo alerts, full control. Cancel monitoring and your system keeps working exactly as it did. You are simply the one watching instead of a central station.
Straight Answer
Ajax Is Not The Cheapest
If price is your only criterion, buy the DIY kit. Genuinely — we would rather you did that than be disappointed. If you want a system that gets police moving and does not own you afterwards, that is the case for Ajax.
We wrote the long version of this argument, with each company's published contract terms, return windows and monitoring rates side by side — including the parts where they beat us: SimpliSafe vs Ring vs ADT, an honest comparison.
Save Your Money
What We Would Tell You To Skip
Two Ways To Do This
Know what you want? Every kit and component above is on our store, priced exactly as listed, shipping to all 50 states. Shop the kits and it arrives pre-configured by a certified dealer.
Not sure what fits? Everything on this page is arithmetic. The part that is not is walking your home and deciding what actually needs protecting — which doors matter, where someone would really come in, whether the dog trips the hallway detector.
That is a free visit, and it ends in a fixed proposal with tax included. No contract, no subscription pressure. Book a security assessment or call (425) 954-6003.
Questions
Ajax Alarm System Cost FAQs
Kits run $899 for the Starter Kit, $1,299 for the Home Kit, and $1,699 for the Whole-Home Kit, all including the hub. Professional installation starts at $390, so a typical installed system is roughly $1,700 to $2,100. Monitoring is $44.99 per month with no contract.
Up front, yes. A DIY kit is cheaper on day one. Ajax uses professional-grade hardware with cellular backup and photo verification, installed by certified technicians, with no contract subsidising the price. It is a different category of system, not a marked-up version of the same one.
No. Every Ajax system self-monitors through the app at no monthly cost, including push notifications and photo alerts. Professional monitoring at $44.99 adds 24/7 central station coverage and verified alarm dispatch, covering intrusion with fire, flood and panic included. It is available to Washington State residents and arranged by phone.
Yes. You own every device from day one. Nothing is leased, and nothing stops working if you cancel monitoring.
No. Monitoring is month to month with no penalty for cancelling.
MotionCam is a motion detector that captures a photo burst when triggered, delivered in under nine seconds. It costs $299 versus $175 for a standard detector. Photo-verified alarms receive priority police dispatch, while unverified alarms are deprioritized and can carry false-alarm fines. Most homes want two or three.
Professional installation starts at $390 across the South Sound and Greater Seattle. Larger systems with perimeter detection, cameras, or Control4 integration are quoted fixed before work begins, tax included.
Yes. Devices pair by QR code in the Ajax app and mount without wiring. Our support is free to everyone, whether you self-installed or we installed it.
Yes. Ajax integrates natively with Control4, so arming can trigger lighting scenes and thermostat setbacks, and the system lives in the same interface as the rest of your home rather than in a separate app.
We install across the South Sound and greater Puget Sound — Kent, Tacoma, Auburn, Federal Way, Puyallup, Gig Harbor, Sumner, Bonney Lake, Covington, Maple Valley, University Place, and Renton. Equipment ships to all 50 states.