Trinity Gate Information

Welcome to Trinity Gate, the Pacific Northwest's premier provider of automated security gate, access control, and perimeter security solutions. While we offer expert installation services, our core focus is on delivering comprehensive maintenance plans designed to keep your systems running reliably year-round. We proudly serve industrial, energy infrastructure, commercial, and residential clients with routine maintenance, responsive repairs, and system upgrades. Whether you're a business owner looking to protect your property or a homeowner seeking lasting peace of mind, Trinity Gate is your trusted partner in long-term security system performance. What we do: Service and Repair. We diagnose and resolve issues with industrial, commercial and residential automated gate systems and access control, keeping downtime to a minimum. New Gate and Operator Installs. As a full service electrical general contractor specializing in perimeter security, we install automated gate, access control and perimeter security systems that are tested, certified and guaranteed. Preventive Maintenance Inspections. Our field service technicians perform lubrication, safety testing and a full range of maintenance services to keep systems in optimal condition year-round. Gate Upgrades and Retrofits. If a gate is outdated but does not need replacing, we retrofit the existing system with new parts and safety enhancements, including UL 325 safety compliance. Second generation, family owned, and securing Washington since 1979. We serve the greater Puget Sound area, including Seattle, Bellevue, Kirkland, Redmond, Sammamish, Issaquah, Renton, Kent, Auburn, Federal Way, Tacoma, Puyallup, Bonney Lake, Buckley, Black Diamond, Maple Valley, Enumclaw, Bothell, Shoreline and Mercer Island.