509 Mechanical Services, LLC

509 Mechanical Services LLC operates under the DBA 509 Ductless in Selah, Washington, delivering both ductless mini-split and traditional central HVAC solutions to residential and commercial clients across the Yakima Valley. The company holds a strong 4.4-star average compiled from 17 client reviews, with technicians available Monday through Friday from 8 AM to 5 PM. Their showroom located at 311 South 1st Street serves as a local hub for homeowners exploring heating and cooling upgrades before committing to installation.

What distinguishes 509 Mechanical Services from regional competitors is their dual expertise spanning two distinct system architectures. They install and service ductless mini-split configurations featuring Hot-Start technology for immediate warmth generation, alongside traditional furnace and central air systems that distribute heated air through ductwork. Their service division, specifically branded as 509 Mechanical Services, handles diagnostics and routine maintenance separate from new installations, ensuring technicians carry specialized tools and manufacturer-specific training for each system type. This organizational separation allows technicians to focus exclusively on maintenance calls without balancing sales quotas, according to multiple reviewer accounts.

Customer testimonials consistently recognize technician Juvenal by name for same-day emergency responses during heating system failures. One reviewer described how Juvenal arrived within hours during an HVAC emergency, preventing frozen pipes during winter. Another client noted Juvenal identified and resolved a problem that a previous contractor declared unsolvable within their confined crawlspace. The team also received praise for honoring quoted prices post-installation and maintaining spotless work areas, leaving no debris or dust upon job completion.