Diamond Heating, Cooling, Plumbing & Electric

Diamond Heating, Cooling, Plumbing & Electric holds a 4.9-star average across 5,910 customer reviews, making it one of the most-reviewed HVAC contractors in the Treasure Valley. Based in Boise, the company dispatches technicians throughout the metro area including Eagle, Meridian, Nampa, Caldwell, Garden City, Kuna, and Middleton. This full-service operation handles heating, cooling, plumbing, and electrical work from a single dispatch, allowing homeowners to manage multiple trade needs through one phone call.

The company distinguishes itself through bundled trade expertise that few Boise contractors match. Website content confirms service agreements and maintenance plans designed to keep residential systems running efficiently between seasonal checkups. Community involvement includes partnerships with the Athletic Club Boise, reflecting local roots beyond service calls. The breadth of covered trades, from heat pump installation to gas line repair to EV charger setup, enables the company to address both routine maintenance and complex upgrades without coordinating multiple subcontractors.

Customer reviews consistently highlight specific technicians who delivered exceptional service. One reviewer described Jose identifying serious code violations during a water heater inspection, then purchasing correct parts himself at no extra charge rather than leaving the job incomplete. Another review named Jonah and Derek installing a complete HVAC system while explaining every component to the homeowner and leaving the workspace clean. A third reviewer praised Apollo arriving on time, cleaning coils, and demonstrating filter replacement rather than finishing the minimum work.