What Does It Really Cost to Clean a Window Air Conditioner?
If you’ve ever asked, “How much does it cost to clean a window AC unit?”—you’re not alone. With so many people relying on these compact cooling systems in apartments, homes, and offices, keeping them clean is essential. But what most people don’t realize is that properly cleaning a window air conditioner can often cost more than just replacing it—especially when done by a professional who does the job thoroughly and correctly.
Cleaning a window AC the right way is far more involved than vacuuming a filter or spraying some cleaner on the front grill. A proper cleaning means removing the unit from the window, taking it to a space with proper drainage, and fully disassembling it. The coils, fan blades, casing, and ventilation channels are all thoroughly cleaned using pressure washing tools and specialized mold-killing agents. The goal isn’t just to make it look clean—it’s to eliminate built-up mold, dust, and bacteria that can blow back into your home and affect your health.
This isn’t a quick or easy job. After washing and sanitizing the components, the entire unit must be dried completely—especially around the wiring and motor. Plugging it back in while it’s still wet can be dangerous. Only after it’s fully dry can it be reassembled and tested. That testing includes more than just checking if cold air comes out; it also means checking for odor removal, fan performance, noise level, and even airflow strength.
For smaller window units (typically 12,000 BTUs or less), the cost of this kind of cleaning usually starts around $150 and depending on what's involved the price may adjust beyond that.
Companies like Mike’s Air Conditioning and Air Vent Medics specialize in this level of service. They often remove units and bring them off-site for deep cleaning, then return them ready to reinstall. In cases where on-site cleaning is possible, having a nearby location for washing makes the process quicker and less expensive.
The truth is, if your window AC is used regularly and never cleaned, it’s probably full of grime, mold, and even insect debris you can’t see. And while replacing the unit might sound cheaper in the short term, buying a new one every season adds up. That’s why professional window AC cleaning—though costly upfront—can help prolong the life of your unit and protect the air you breathe.
In the end, it comes down to this: a window AC can’t clean itself, and surface wipes won’t solve a deeper problem. If you want it done right, trust professionals who know how to take it apart, clean it thoroughly, and return it working better—and cleaner—than before.
