The Truth About HVAC Air Filter Changes That Most Homeowners Get Wrong


Debunking a Common HVAC Maintenance Myth

One of the most persistent myths we encounter at Jackson & Foster is that air filters only need to be changed once a year during annual maintenance. This misconception is costing San Diego homeowners both comfort and money.

Here’s the reality: The frequency of air filter changes depends on several crucial factors:

• Household size
• Number of pets
• Local air quality
• Type of filter being used
• HVAC system usage

Why Proper Filter Maintenance Matters

When you live in areas like Southern California’s diverse climate zones, your HVAC system works overtime to maintain comfort. A clogged filter forces your system to work harder, leading to:

• Higher energy bills
• Reduced system efficiency
• Decreased indoor air quality
• Potential system damage
• Shorter equipment lifespan

Recommended Filter Change Schedule

For most homes in the El Cajon and San Diego areas, we recommend:

• Basic 1-inch filters: Every 1-2 months
• High-quality pleated filters: Every 3-4 months
• Premium HEPA filters: Every 6-12 months

The Bottom Line

Regular filter changes are one of the most cost-effective ways to maintain your HVAC system’s efficiency and protect your family’s health. Don’t wait for annual maintenance to change your filter – make it a regular part of your home care routine.

Remember, investing a few dollars in regular filter changes can save hundreds or even thousands in potential repairs and energy costs over time. If you’re unsure about your filter maintenance schedule, our experienced technicians can help you determine the optimal replacement timeline for your specific situation.

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