For optimal performance and air quality, you should check your filter every month and replace it at least every 90 days. However, if you have pets, allergies, or a lot of dust, you may need to replace it every 30-45 days. A clean filter protects your system, improves efficiency, and keeps your air clean.

This is a common issue with a few possible causes. It could be a simple fix like a dirty air filter or a thermostat set incorrectly. However, it could also indicate a more serious problem like a refrigerant leak, a frozen evaporator coil, or a malfunctioning compressor. If you've checked the basics, it's best to call a professional for a diagnosis.

With proper maintenance, a well-installed central air conditioner typically lasts 12-15 years. A gas furnace can often last 15-20 years. As systems age beyond this point, they become less efficient and require more frequent repairs. If your system is within this age range and breaking down often, it may be more cost-effective to consider a replacement.

High bills are often a sign of an inefficient HVAC system. Start by ensuring you change your air filters regularly and that your thermostat is programmed correctly. Scheduling annual preventative maintenance is the best way to ensure your system runs at peak efficiency. Other solutions include adding attic insulation, sealing windows and doors, and ultimately upgrading to a modern, high-efficiency unit.

Absolutely. Think of it like an oil change for your car. Annual maintenance is a crucial investment that keeps your system running smoothly and efficiently. It helps prevent unexpected breakdowns, extends the lifespan of your equipment, maintains your manufacturer's warranty, and can significantly lower your energy bills by ensuring everything is working correctly.