You should consider replacing your AC if:

• It’s more than 10-15 years old and showing signs of wear.
• Repair costs are becoming frequent and/or expensive.
• It has low efficiency (high energy bills) or outdated refrigerant (e.g. R-22) that’s hard to service.
• It fails to cool your home properly even after tune-ups, or has uneven cooling.

Proper sizing is critical. The right capacity depends on your home’s square footage, insulation, window size/orientation, ceiling height, and even the local climate. Too small = poor performance; too large = high cost and short cycling. A technician should perform a load calculation to choose the right unit.

Not always. If your existing ducts are in good condition (well sealed, sized correctly, clean, without leaks), they may be usable. But if ducts are old, leaking, under- or over-sized, or poorly insulated, replacing or repairing them as part of the replacement may be required for optimal performance.

Some of the main benefits include:

• Lower electricity bills due to better efficiency (higher SEER ratings).
• Improved comfort: more even cooling, better humidity control, quieter operation.
• Potentially environmentally friendlier performance.
• Reduced repair & maintenance costs over time.