As an electrical contractor in Spearfish SD, we consistently deliver professional, client-focused electrical, heating, ventilation and air conditioning (HVAC) services in the Northern Hills and Black Hills!

Electrical Services

Adhering to the highest safety and quality standards, we pride ourselves on our legacy of electrical expertise–from simple to complex power systems


Preventative Maintenance

Often times when something is out of sight, it is out of mind and we don’t do anything until it breaks. Foltz and Sons Electric knows this all too well and we have developed a maintenance programs that is all about you, keeping you and your heating and cooling system comfortable, healthy, safe, and energy wise.


Foltz and Sons Electric provides Heating, Ventilation and Air Conditioning (HVAC) design, installation and repair services. Our services are available for residential, commercial and industrial customers. Upgrade to the latest HVAC systems that won’t let you down.