JSTHREE

JS3 is a mechanical contractor in Portland, Oregon, providing commercial and industrial HVAC, plumbing, and gas piping services. The company handles projects ranging from single-day jobs to multiyear installations, covering boilers, chillers, pumps, water systems, cooling towers, package units, split systems, VRF/VRV systems, VFDs, parking garage systems, and built-up systems. JS3 also performs equipment replacements and retrofits, working with local organizations to help customers access financial incentives for upgrades.

Beyond installation and replacement, JS3 offers maintenance and service with performance monitoring and detailed reporting. The company uses advanced controls that automatically track equipment performance and send alerts when efficiency decreases or system-wide failures occur, moving beyond traditional reactive HVAC controls. JS3 emphasizes communication throughout all projects, providing photo documentation and written performance reports so customers understand their systems' exact operating capacity and can make informed decisions about repairs and upgrades.