Ethernet, coax and fiber inside a house need no permit in Washington, but whoever is paid to run them needs an L&I electrical contractor license (09, 06, 02 or 01).
Northwest (Puget Sound & islands)
Home Theatre Northwest
Seattle home automation and AV integrator, since 1998, designing and installing home theaters, Control4 and Lutron automation, lighting and motorized shades, whole-home audio and video, security cameras and structured wiring for Seattle and the Eastside.
Martin SoundWorks
Auburn-based home automation integrator serving Seattle and Bellevue with home theater, hi-fi and distributed audio/video, lighting control, window treatments, network and Wi-Fi, pre-wire and security cameras.
Southwest & Olympic Peninsula
Current Home Technologies
Vancouver home technology integrator (since 2008) designing and installing lighting control, whole-home audio, home theater, Alarm.com security and cameras, networks and Crestron control for homes in Vancouver and the Portland metro.
Polos Electronics
Family-run Battle Ground low-voltage contractor (since 1979) doing pre-wiring and retrofits, security and surveillance systems, door access, home theater, whole-house audio, networking and Starlink installs in Southwest Washington.
Central Washington
Digital Solutions NW
Wenatchee low-voltage installer for homes and businesses — Wi-Fi and networking, PoE security cameras, whole-home audio, home theater, lighting control, motorized blinds and access control.
Quicksilver Audio
Kennewick audio/video and smart home company (locally owned since 1978) with a Chelan Valley location — Control4 automation, home theaters, whole-home audio, Lutron lighting and shades, networking, security and video surveillance.
Eastern Washington
Advanced Protection Services Inc.
Pasco security integrator serving Tri-Cities homes, businesses and government — intrusion and fire alarms with UL-listed 24-hour monitoring through a contracted center, video surveillance, access control and home theater installs.
Certified Security & Sound
Spokane low-voltage contractor (founded 1971) with its own local monitoring center — home alarm systems, surveillance cameras, door controls, lighting control, home theater and sound, and networking across the Inland Northwest.