AC Repair vs. Replacement: How to Decide in Savannah

By Bryan Donaldson, Owner, On Time Air. 25+ years of HVAC experience in Savannah, GA.

A technician just handed you a repair quote and the number stings. Now you’re sitting there wondering whether you’re about to put good money into a system that’s going to fail again next summer.

It’s a fair question, and I’ll be honest that our industry doesn’t always answer it honestly. Replacement is a bigger ticket than repair, which means there’s a built-in incentive to nudge you toward the new system.

So here’s the framework I actually use, including the cases where repair is clearly the right call.

Start With Three Facts

Before any math, get these three pieces of information. Any technician should be able to tell you all three.

1. How old is the system? Look for a manufacture date on the nameplate of the outdoor unit. If there’s no date, the serial number usually encodes it, and we can decode it for you.

2. What refrigerant does it use? This is on the same nameplate. R-22, R-410A, or R-454B. It matters more than most homeowners realize.

3. Is it still under warranty? Most manufacturers give 10 years on parts, but only if the system was registered within 60 to 90 days of installation. Plenty of homeowners are covered and have no idea. We check this before quoting, and it has changed the answer on more than a few jobs.

The Basic Math

The rule I give people is simple. Multiply the repair cost by the age of the system in years. If it exceeds about $5,000, take replacement seriously.

A $400 repair on a 6-year-old unit is $2,400. Repair it. A $400 repair on a 14-year-old unit is $5,600. Now we should talk. A $1,500 repair on a 10-year-old unit is $15,000. Replace it.

It’s not gospel. It’s a fast way to sort the obvious cases from the genuinely close calls.

For the close calls, the better question is cost per year of remaining life. A $1,200 repair that buys you five more years is $240 a year. A $7,000 replacement that lasts fifteen years is $467 a year, but comes with a warranty, lower operating cost, and better humidity control.

Framed that way, repair often wins on pure cost. What tips replacement is everything the annual number doesn’t capture: reliability, comfort, and not losing the AC in August.

The R-22 Problem

If your nameplate says R-22, the decision gets a lot simpler.

R-22 production and import ended in the United States in 2020. What’s left is reclaimed or stockpiled, and it prices accordingly, commonly $80 to $150 per pound. A system holding six pounds is several hundred dollars in refrigerant alone before anyone touches a wrench.

More to the point: any R-22 system is at minimum eleven years old, because they stopped installing them. It’s near the end of its service life regardless of what today’s repair costs.

My advice is consistent here. Repair an R-22 system only if it’s a cheap electrical fix, like a capacitor or a contactor, that gets you to a planned replacement. Do not put refrigerant or a compressor into one.

Worth noting for 2026: R-410A is now in its own phase-down under the AIM Act, and new equipment ships with R-454B. R-410A isn’t gone and won’t be for years, but prices have started climbing. If your system is R-410A and fifteen years old, that’s a factor in the same direction, just far less urgent.

Signs That Point to Replacement

Age past 12 to 15 years. Savannah’s long cooling season and humidity wear equipment faster than the national average. A 15-year-old system here has worked harder than a 15-year-old system in Ohio.

Two or more repairs in a single season. Failures cluster. When several components reach end of life together, you end up paying for the same system three times.

Compressor or evaporator coil failure out of warranty. These are the two most expensive components. When either goes on an older system, replacement is usually the better value.

Rising power bills without a rate change. A system losing efficiency is telling you something.

The house is humid even when it’s cool. Often a sign of an oversized or degraded system. Sometimes fixable, sometimes not.

Rooms that never balance out. If some rooms are always warm, the problem may be ductwork rather than equipment, which is worth diagnosing before you replace anything.

Signs That Point to Repair

I want to spend a moment here because this list gets skipped a lot.

The system is under 10 years old. Modern equipment should give you more than a decade. A failure at year seven is usually a component failure, not a system failure.

It’s a known wear part. Capacitors, contactors, fan motors, and thermostats are consumables. Replacing one is routine maintenance, not a warning sign.

The repair is covered under warranty. Obvious, but check.

The system has otherwise performed well. If it’s held temperature, controlled humidity, and run quietly for years, a single failure doesn’t invalidate it.

You’re selling within a year or two. A new system rarely returns its cost at closing. Repair it, disclose it, move on.

You genuinely can’t afford replacement right now. A repair that buys you a year to plan is a legitimate choice. We’d rather fix it and help you budget than pressure you into financing you’re not comfortable with. That said, financing exists precisely so an August emergency doesn’t force a bad decision.

The Question Most People Forget

If you do replace, the ductwork question comes with it.

A lot of Savannah homes, particularly older ones and anything with attic ducts, have duct systems that leak significantly. Industry estimates commonly put typical residential duct leakage in the 20 to 30 percent range.

Installing a brand new high-efficiency system onto leaky ducts means paying to cool your attic. When we quote a replacement, we look at the ducts too, and we’ll tell you if sealing or repair should be part of the project. Sometimes that adds to the quote. It also protects the investment you’re about to make.

How to Get an Honest Answer

A few things you can do to protect yourself:

• Get the diagnosis in writing, with the specific failed component named.
• Get quotes for both paths. Any contractor who will only quote replacement is telling you something about themselves.
• Ask them to check warranty status before quoting.
• Get a second opinion on anything over $1,500. Not because contractors are dishonest, but because expensive diagnoses deserve confirmation.
• Be wary of pressure. “This price is only good today” is a sales tactic, not an engineering assessment.

Frequently Asked Questions

At what age should I replace my AC instead of repairing it? In Savannah’s climate, systems past 12 to 15 years are generally replacement candidates when a significant repair comes due. Our long cooling season and humidity shorten equipment life compared to national averages.

Is it worth repairing an R-22 air conditioner? Only for inexpensive electrical repairs that bridge you to a planned replacement. R-22 costs $80 to $150 per pound and any R-22 system is at least eleven years old.

How do I know if my AC is still under warranty? Check whether the system was registered with the manufacturer after installation, usually required within 60 to 90 days. We can look it up by model and serial number.

Does a new AC really lower my power bill? If you’re replacing a system that’s 12+ years old or rated 10 to 12 SEER, yes, often noticeably. Replacing a well-functioning 8-year-old system for efficiency alone rarely pays back.

Should I replace the furnace or air handler at the same time? Usually yes when both are of similar age. Matched systems perform to their rated efficiency, and mixing a new condenser with an old indoor coil frequently voids warranty coverage and underperforms.

We’ll Give You Both Numbers

When we diagnose a failing system, you get the repair quote and the replacement quote, along with our honest read on which makes more sense for your situation and how long you plan to stay in the home.

Serving Savannah, Pooler, Richmond Hill, Rincon, Tybee Island, Wilmington Island, and all of Chatham, Effingham, and Bryan counties.

Call On Time Air at 912-210-4901 or request service online.

Related: AC repair costs in Savannah, 3 signs it’s time for a new AC, and air conditioning services.