Blog Seasonal HVAC Maintenance: What to Do Before Winter Hits Dec 09, 2025

As the winter months approach, ensuring that your home is prepared to face the cold is paramount. One crucial aspect often overlooked is seasonal HVAC maintenance. At A.G. Heating & Cooling LLC, we understand the importance of a well-functioning system, which not only keeps your home warm but also operates efficiently, potentially reducing energy bills. Let’s delve into what steps you should take to ensure your HVAC system is winter-ready.

Firstly, the importance of replacing or cleaning the air filters cannot be overstated. Dirty filters severely limit your system's efficiency, causing it to work harder than necessary, which can lead to higher energy costs and potential mechanical failures. Homeowners should replace or clean filters every one to three months, particularly before winter hits, to ensure optimal air quality and system performance.

Next, thermostat calibration is an essential task. Ensure that your thermostat accurately reads and displays the correct temperature. Miscalibrated thermostats can lead to inefficient system operation, increasing your energy bills without delivering desired comfort levels. Upgrade to a programmable or smart thermostat for more control, allowing you to set specific temperatures for different times, optimizing both comfort and efficiency.

It’s also crucial to inspect and clean your system's vents and registers. Over time, dust and debris can accumulate, obstructing airflow and forcing your system to work harder. Periodic vacuuming and dusting can significantly enhance airflow, allowing your heating system to efficiently distribute warmth throughout your home.

Checking for any unusual noises or odors when your system operates is vital. Such signs can indicate underlying issues that might worsen over time. If your furnace emits strange noises or unpleasant odors, it’s wise to contact an HVAC professional. At A.G. Heating & Cooling LLC, our team is trained to diagnose and address these issues before they escalate into significant problems.

Don’t overlook the importance of inspecting external components. Ensure that any outdoor units are free from debris, such as leaves or twigs, that could clog the system. Clear at least a two-foot space around these units for adequate airflow, protecting your system from potential damages or inefficiencies.

Another critical step is to ensure your home is well insulated. Proper insulation helps retain the warm air your HVAC system produces, reducing the need for your system to run longer than necessary. Check areas where heat is likely to escape, such as windows and doors, and consider using weather stripping or caulk to seal any leaks.

Lastly, scheduling a professional HVAC inspection is perhaps the most crucial step of all. Regular inspections by certified technicians, like those at A.G. Heating & Cooling LLC, help prevent minor issues from turning into costly repairs down the line. During an inspection, technicians can clean, adjust, and lubricate components, ensuring everything is functioning efficiently.

In conclusion, ensuring your HVAC system is prepped for winter is essential for comfort and efficiency. By taking proactive measures like replacing filters, cleaning vents, and scheduling professional inspections, you can ensure your furnace keeps you warm throughout the cold months. Consider contacting us at A.G. Heating & Cooling LLC to schedule your maintenance today, providing peace of mind that your home will remain cozy and energy-efficient all winter long.