About
Dayco Heating & Air Conditioning is a family-owned HVAC contractor based at 11 N Auburn St in Kennewick, Washington, serving the Tri-Cities region — Kennewick, Richland, and Pasco — and the broader Yakima Valley since 1985. The company installs and services a full range of heating and cooling systems including geothermal heat pump systems, gas and electric furnaces, air conditioners, heat pumps, and ductless mini-splits. Dayco is an authorized WaterFurnace and Trane dealer and installs ground-source systems suited to the hot-summer, cold-winter continental climate of Eastern Washington's Columbia Basin. The firm offers 24/7 emergency service and a monthly maintenance plan for long-term system protection, with online booking and instant quotes available through its scheduler. Verified active operator per https://daycoheating.com/our-services/ + WaterFurnace dealer locator D1 (WA bundle audit 2026-06-02)
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Dayco Heating & Air Conditioning — Kennewick, Washington
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