HVAC Maintenance: Seasonal Checklists, Tips & DIY Guides

Proper HVAC maintenance is the key to reliable comfort and long system life. Whether you’re prepping for summer or winter, this section provides seasonal checklists, homeowner-friendly service tips, and preventive care that reduces costly breakdowns. From changing filters and inspecting thermostats to cleaning coils and checking refrigerant lines, these guides make it easy to maintain your system — even if you’re not a pro.