Repair or Replace Your AC
in Joliet, IL? How to Decide

Your AC needs a big repair. Here is the honest framework we use with every customer.

The 50% Rule

If the repair cost exceeds 50% of the cost of a new comparable system AND your system is over 10 years old — replacement is usually the better investment.

Example: Your 12-year-old AC needs a compressor ($1,800). A new system costs $4,500. That repair is 40% of replacement cost. Combined with the age, most Joliet homeowners choose replacement.

When Repair Makes More Sense

• System under 8 years old — Still has most of its useful life. Repair is almost always the right call.
• Repair cost under $600 — A capacitor or refrigerant recharge is worth doing on most systems under 12 years old.
• Well-maintained system — A 10-year-old AC with annual tune-ups may have 5-7 more good years.
• You need time to plan — A reasonable repair buys time to budget for replacement on your schedule.

When Replacement Makes More Sense

• System 12+ years old — You are in the replacement window for Illinois homes.
• Failed compressor on old system — Replacing the compressor on a 13-year-old AC means everything else is still 13 years old.
• R-22 refrigerant system (pre-2010) — R-22 is banned and very expensive. If your old system leaks, replacement is almost always cheaper than recharging.
• Multiple repairs in the past 2 years — It has entered a cycle of decline.
• High energy bills despite tune-ups — A new high-efficiency system can save $300-$600 per year on energy.

Questions to Ask Before Deciding

1. How old is the system?
2. What refrigerant does it use? (R-22 = strongly consider replacing)
3. What is the repair vs replacement cost ratio?
4. Has it needed other repairs in the last 2 years?
5. What is the SEER rating? (Old 10 SEER vs new 16 SEER = big energy savings)

Frequently Asked Questions