There’s nothing like a damp, cold February day to make you value your heating in Fresno and Central Valley, CA. When the nights head down to freezing and the days never get warm, you’ll want our reliable Grandmark Service Company heating service ready to help. Expert maintenance is the key to reliable warmth, while responsive repairs cover any unexpected issues. You can also reach out with questions about the right time for a new furnace installation and what kind of heat is best for your home.