
Alarm System Installation in Seattle, WA
Compare 25 alarm system installation contractors near you in Seattle and surrounding area with an average rating of 4.5/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated May 22, 2026
Most pros respond within 2–24 hours
Verified Pro Installers
Other Businesses in This Area
Seattle DVR Inc.
5.022½+ years onlineSecurity One: Seattle WA Home Security Systems
5.020+ years onlineTech Security USA, LLC
5.0~12 years onlineWatson Security
4.924 years onlineAAA Fire Protection
4.828+ years onlineGreat Western Security, Inc.
4.8~21 years onlinePi Security Solutions
4.813½+ years onlineHPD Security, LLC - Seattle Security Guard Services
4.77+ years onlineSonitrol Pacific Security Systems Seattle, A Pye-Barker Fire & Safety Company
4.7~27 years onlineStonewall Security
4.77½+ years onlineIsland Security Systems Inc
4.528 years onlineWashington Alarm
4.4~27 years onlineBurdick's Security
4.327+ years onlineGuardian Security
4.330+ years onlineAbsolute Security Alarms LLC
4.015½+ years onlineADT Security Services
2.029+ years onlineAlarm System Installation in Nearby WA Cities
Other Services in Seattle
Alarm System Installation in Seattle, WA
Seattle alarm system installers in this directory cover Capitol Hill, Ballard, Queen Anne, Wallingford, West Seattle, and surrounding King County. A typical 3-bedroom Seattle home with door/window contacts, motions, glass-break, and 24/7 monitoring runs $1,800-$3,500 installed plus $35-$60/month for monitoring.
Seattle Police charges for false-alarm response after the second event. Most monitored systems use cellular over LTE. Many Seattle Craftsman and Tudor homes have plaster walls that complicate sensor wiring — wireless sensors are often the practical default.
Frequently Asked Questions
- Do I need a permit for a Seattle alarm?
- Seattle Police requires alarm registration ($25-$50/year). Failing to register results in higher false-alarm fines.
- What about plaster walls?
- Wireless sensors avoid plaster damage. Modern wireless panels handle 100+ sensors without wall penetrations.
- Should my alarm integrate with cameras?
- Most modern systems do — Alarm.com, Honeywell, and Qolsys all integrate.
About NeedInstall
NeedInstall helps connect customers with local installation professionals across Seattle and surrounding communities. Featured contractors have claimed their profile and verified their business information. Listings marked as "Verified Pro" have been confirmed by the business owner.


