Quick answer
Multiply the age of your air conditioner by the cost of the proposed repair. If the result is over $5,000, replacement usually makes more financial sense; under $5,000, repair is usually the smarter spend. A $600 repair on a 6-year-old system (3,600) is worth doing; the same repair on a 14-year-old system (8,400) is money toward a dead end.
- Age × repair cost > $5,000 → lean replace; under → lean repair.
- Systems on phased-out refrigerant tip the math toward replacement.
- A failing compressor on a 10+ year system almost always means replace.
When is this decision actually on the table?
When a repair estimate crosses a few hundred dollars on a system past its 10th birthday, or when this is the second significant repair in two seasons. One cheap fix on a young system isn't a crossroads — a compressor, coil, or repeated refrigerant loss is.
Compare your options
Option 1 — Repair and run
Best when the system is under ~10 years old, the fault is a component (capacitor, contactor, fan motor, board) rather than the refrigerant circuit, and the $5,000-rule math stays low. You preserve capital and revisit replacement on your own schedule.
Option 2 — Planned replacement
Best when the math fails, the refrigerant is being phased out, or efficiency has fallen off a cliff. Today's SEER2-rated systems can meaningfully cut summer bills versus a 12–15-year-old unit, and you choose the equipment calmly instead of during a July breakdown.
Option 3 — Repair now, replace on schedule
A legitimate middle path: make a modest repair to get through the season, then plan a shoulder-season replacement when installers aren't booked solid and you can weigh quotes properly. Ask your tech honestly whether the repair buys a season or just weeks.
The trap: serial repairs
Three $400 repairs across two summers feels cheaper than replacement, but you've spent $1,200 without adding a day to the system's real remaining life. Track what you've spent — the $5,000 rule only works if you count cumulative repairs honestly.
The other trap: panic replacement
Replacing a young system over a failed capacitor because a salesperson caught you sweating in a heat wave. Get the actual diagnosis and part cost first — some 'replace it' verdicts are $250 fixes.
Proof, process & local validation
- Tario installs and services Carrier equipment as a Carrier Factory Authorized Dealer — with a 100% satisfaction guarantee.
- Financing for replacements is available through Wells Fargo (with approved credit).
- Family-owned since 2013; 4.9-rated on Google across MD, DC & Northern Virginia.
Methodology: Framework based on the industry-standard $5,000 rule, applied against real repair economics Tario technicians see across the Baltimore–DC region. Last updated: 2026-07-02
Common questions
How long should a central AC last in Maryland?
Roughly 12–15 years with annual maintenance. Coastal humidity and long cooling seasons push our region toward the lower end for neglected systems and the higher end for maintained ones.
Does the refrigerant type change the math?
Yes. If your system runs on a refrigerant being phased out, recharge costs climb every year and a major refrigerant-circuit repair rarely makes sense — that's a thumb on the 'replace' side of the scale.
Can I finance a replacement?
Tario offers financing through Wells Fargo with approved credit — you can apply online or ask your technician during the estimate.