Winter is well underway, and many homeowners are just now realizing their heating system isn’t performing the way it should. If you meant to schedule maintenance in the fall but didn’t get around to it, you’re not alone—and the good news is it’s not too late. A professional HVAC tune-up in Washington, DC can still make a meaningful difference mid-season, helping restore comfort, improve efficiency, and prevent costly breakdowns before the coldest days are behind us.