As luck would have it, I received a defective AC the first time around. Product support got on it right away, with numerous communications. Today I received a full replacement (actually upgraded from 8.000 to 10,000 BTU's). It works like a charm and cools things off incredibly fast and efficiently! This is our first AC (hard to believe, as we are in our 70's and somehow got by with fans). We are total converts! Anyway, our whole experience with Windmill and the staff has been perfect. Great product (and support). Thank you!Eric (Norman)

The customer service of this company is amazing. Sometimes. You take chances with smaller companies. And I’m so glad I took the chance with them. My room is ice cold and it’s amazingly quiet. I have the whispertech and it makes its promise. Any questions you have. They get back to you right away. Like. Right away. Maybe an hour response time. I love the product. I love the service. You will not regret your purchase. Thank you guys and gals at windmill. Keep it going

When I first turned it on, I wasn't even sure it was on! The compressor makes a tiny bit of noise when it first comes on for 4-5 seconds, and then after that I can barely hear it. It cools the room much more quickly than my old unit. After that, I can use the Eco mode to maintain the temperature. I was able to install the app with no issues.

Windmill 8k WhisperTech is super easy to set up thanks to a step-by-step detailed graphic instruction booklet. Extremely quiet delivering a minimum of white noise and uniquely jets the air upward into the room. Controls are intuitive. And it is beautiful to look at and effortlessly compliments the room. I highly recommend this unit.

I bought the 12,000 BTU unit when one of my central units was hit by lightening. I already had purchased two of the windmill fans and loved the style and quality so the AC was a quick decision. After almost a year the AC unit began making a loud noise when the compressor kicked on. I notified customer service fearing I wouldn’t get a response or any help but they surprised me. They replaced my unit after I sent a video of the noise my unit was making.

I have a small art studio about 100 yards through the woods from my home. I rarely went there during the summer days because it was such a pain to go out, turn on the A/C, and then go back to the house and wait for the studio to cool down. Now I can do everything remotely. What a GREAT solution! The installation was easy (except for part where we had to carry it along a wooded path for 100 yards ... HEAVY!). Cooling is efficient and quiet. I'm so glad I made this investment in my artistic life!

I am not strong. Yet I was able to single-handedly install the 10K a/c by myself within an hour. When I turned it on, there was a little bit of noise. Now that it’s been two days, it’s basically silent. Highly recommend. I also love that the air blows out on the sides and not through the face — much more comfortable this way if you place it in front of your bed or desk. Really lovely design, both aesthetically and functionally.

I love the super quiet AC unit. Perfect for my home office-quiet enough for me to hold Teams meetings. Had an issue with the original unit, but the customer support was amazing. Followed up quickly and after just a few questions and uploading a quick video, they replaced the original unit. So impressed with the support. And anyone that comes into my office space is amazed at how quiet the unit is. And I love how I can control everything from the app. I highly recommend the product and the company/support behind it.

I love it I had like three ac’ s now I got one great windmill ac that keeps the downstairs cool and I got one upstairs that keeps the upstairs nice and cool I appreciate the great work u did designing it and how much it works well keeping the house cool keep up the great work at windmill thanks

I bought an AC last summer. It was working fine for the summer. It was getting hot in Spring 2025. I started up the unit and it was making weird sound and stopped working. The unit made noise, so I knew the compressor was working but no fan noise. I contacted Windmill customer service. They had me go through a few tests on the unit and they told me that the unit is defective. They shipped a replacement immediately and I received it within a week.That was June 2025. Now it is mid Aug, 2025 and it is going well. We had very hot July in Chicago area. I am happy with how Windmill CS helped me out.