When to replace vs. repair your AC in the DMV

Every summer in the DMV, we get the same call: the air conditioner quit, the house is getting warm, and the question is always the same — "Do I fix it, or is it time for a new one?" There's no one-size-fits-all answer, but there is a straightforward way to think it through.

Start with the age of the system

Most central AC systems in our area last about 12–15 years. Heat pumps, which run year-round, often land at the lower end of that range. If your system is under about 10 years old and has been maintained, repair is usually the smart move. Once you're past 12–15 years, every repair is money spent on equipment that's near the end of its life anyway. If you're seeing symptoms but aren't sure the system is truly failing, our AC repair service starts with a real diagnostic — not an automatic upsell.

Run the "$5,000 rule"

Here's a quick gut-check tradespeople use: multiply the age of the system by the cost of the repair. If the number is over about $5,000, replacement usually makes more sense. A $400 repair on a 6-year-old unit ($2,400) is an easy fix. That same $400 repair on a 14-year-old unit ($5,600) is a sign you're throwing good money after bad.

Watch for the expensive failures

Some repairs are routine — a capacitor, a contactor, a clogged drain. Others are red flags that tip the math toward replacement, especially on an older system:

• Compressor failure — the most expensive part in the system.
• A refrigerant leak in the coil — repairs are costly and often temporary.
• R-22 (Freon) systems — this refrigerant is phased out, so recharges are increasingly expensive and a recurring leak becomes a money pit.

Factor in your energy bills

A DMV summer is humid and long, and your AC works hard from May into September. An older unit running at, say, 10 SEER costs far more to run than a modern high-efficiency system. If your summer electric bills keep climbing and rooms never quite cool down, a new right-sized system can pay back a meaningful chunk of its cost in comfort and lower bills. Our AC replacement cost guide for the DMV shows what drives the price, and there are rebates and tax credits that help offset the upfront cost.

What we'll never do

We won't scare you into a new system you don't need, and we won't band-aid a system that's clearly done just to make a sale. A Logan technician will tell you what's actually wrong, give you the repair number and the replacement number, and let you decide with the full picture in front of you. Not sure the system is even failing yet? Start by ruling out the easy stuff in why your AC blows warm air. And if it's your furnace on the fence too, read repair or replace your furnace. When you're ready to talk numbers, we cover every neighborhood on our DMV service map.

Frequently asked questions