
As Greenville’s winter approaches, it’s time to ensure your HVAC system is up to the task of keeping your home warm and comfortable. A well-maintained HVAC system not only improves indoor comfort but also helps you save on energy costs and avoid unexpected breakdowns during the chilly months.
In this guide, we’ll cover essential maintenance tips to prepare your HVAC system for the winter. Whether it’s heating repair, furnace maintenance, or professional tune-ups, these tips will ensure your system runs efficiently all season long.
Ready to get started? Let’s dive into the steps you should take!
Check and Replace Air Filters
One of the simplest yet most crucial steps in preparing your HVAC system for winter is checking and replacing your air filters. Dirty or clogged filters can restrict airflow, causing your system to work harder and potentially leading to higher energy bills and unnecessary wear and tear.
Why Clean Air Filters Matter:
- Improve indoor air quality by trapping dust, pollen, and other contaminants.
- Enhance system efficiency, reducing energy consumption.
- Prolong the lifespan of your HVAC system by preventing overheating.
How Often to Check and Replace: It’s recommended to check your air filters at least once a month and replace them every 1-3 months, depending on usage and the type of filter you have. If you have pets or allergies, you may need to replace them more frequently.
Not sure how to change your filters or need assistance? Contact us for professional help!
Inspect and Clean Vents and Ducts
Over time, dust, debris, and even mold can accumulate in your home’s vents and ductwork, affecting the efficiency of your HVAC system and potentially impacting indoor air quality. Ensuring that your vents and ducts are clean and free from blockages is an essential part of preparing for the winter months.
Why Clean Ducts and Vents Matter:
- Improved Airflow: Clear vents and ducts allow for better air circulation, which helps your HVAC system heat your home more evenly and efficiently.
- Healthier Indoor Air: Removing dust, allergens, and mold from ducts can reduce allergy symptoms and improve overall air quality.
- Energy Efficiency: Clean ductwork reduces strain on your system, which can lower energy bills and prolong the life of your HVAC system.
How to Inspect and Clean:
- Visual Check: Inspect your vents for visible dust or debris. If you notice any buildup, it’s time for a cleaning.
- Professional Duct Cleaning: For a thorough cleaning, consider scheduling a professional duct cleaning service. Professionals can also identify any leaks or damage that may need repair.
If you suspect a problem or need assistance, reach out to us to schedule a duct cleaning or inspection service.
Test the Thermostat
Your thermostat plays a crucial role in maintaining a comfortable temperature in your home, so it’s essential to make sure it’s functioning properly before winter sets in. An accurate thermostat ensures that your HVAC system heats your home efficiently, helping you save on energy costs.
Steps to Test Your Thermostat:
- Check the Temperature Settings: Set your thermostat to a higher temperature and listen for the heating system to activate. If it doesn’t turn on, there may be an issue with the thermostat or the system itself.
- Calibrate if Necessary: If the temperature in your home doesn’t match the thermostat setting, it might need recalibration. Most modern thermostats can be recalibrated manually, or you can contact a professional for assistance.
- Consider an Upgrade: If your thermostat is outdated, upgrading to a programmable or smart thermostat can provide better control over your heating schedule and improve overall efficiency. This can be a great way to reduce heating costs and keep your home comfortable all winter long.
Upgrading your thermostat or need help with troubleshooting? Check out our heating maintenance services for professional assistance.

Check for Air Leaks and Insulation
Air leaks and poor insulation can cause your HVAC system to work overtime to keep your home warm, leading to higher energy bills and reduced comfort. Sealing these leaks and ensuring proper insulation can make a significant difference in your home’s energy efficiency.
How to Identify Air Leaks:
- Inspect Windows and Doors: Check for drafts around windows, doors, and other openings. Use a lit candle or incense stick—if the flame or smoke wavers, there may be a leak.
- Check Attics and Basements: These areas are often the biggest culprits for heat loss. Ensure there’s adequate insulation, and look for gaps or holes where air might escape.
How to Improve Insulation:
- Seal Gaps and Cracks: Use weatherstripping or caulk to seal any gaps around windows, doors, and vents.
- Upgrade Insulation: If your home is older, consider adding or upgrading insulation in the attic, walls, and basement to improve energy efficiency.
By addressing these issues, you can prevent warm air from escaping and cold air from entering, making your home more comfortable and reducing the workload on your HVAC system.
For more information or to schedule a professional inspection, explore our heating services.
Schedule a Professional HVAC Tune-Up
One of the best ways to ensure your HVAC system is ready for Greenville’s winter is to schedule a professional tune-up. Regular maintenance helps catch potential issues early, improves system efficiency, and extends the lifespan of your heating equipment.
What to Expect During a Professional Tune-Up:
- Thorough Inspection: A professional will check all components of your system, including the thermostat, ducts, and electrical connections.
- Cleaning and Lubrication: Essential parts such as the blower motor and burners will be cleaned and lubricated to ensure smooth operation.
- Performance Testing: The technician will test the system’s performance to make sure it’s operating at peak efficiency and will make adjustments as needed.
Benefits of Regular Maintenance:
- Prevent Costly Repairs: Identifying and fixing small issues early can prevent more expensive repairs down the road.
- Energy Efficiency: A well-maintained system uses less energy, helping you save on your utility bills.
- Extended System Life: Regular care can add years to your HVAC system’s lifespan.
For reliable and professional HVAC maintenance, explore our heating maintenance services or consider our maintenance plans for year-round peace of mind.

Conclusion
Preparing your HVAC system for Greenville’s winter is essential to ensure comfort and energy efficiency throughout the season. By following these maintenance tips—checking and replacing air filters, cleaning vents and ducts, testing your thermostat, sealing air leaks, and scheduling a professional tune-up—you can enjoy a warm, cozy home and avoid unexpected breakdowns.
Don’t wait until the cold sets in! Schedule your HVAC service with Chisholm Plumbing Heating & Air Conditioning today. Whether you need heating repair, furnace installation, or a maintenance plan for year-round support, our experienced team is here to help.
For more information or to book a service, contact us or check our service areas to see if we’re in your neighborhood. Stay warm this winter, Greenville!