Koenders Windmills innovated windmill aeration systems over 25 years ago. With over 50,000 windmill aeration systems installed in North America, we are the proven leaders in the windmill aeration market.
Testimonials
"I would recommend the Koenders aeration system to anybody that is looking for something that is maintenance-free and does a good job. Absolutely."
Mark Pehlemann - Cash Crop Farm, Port Perry, Ontario
"The Koenders windmill aeration system is a fairly simple and beneficial way to achieve aeration for your pond and it gives you a good amount of oxygen into the water which helps prevent algae growth."
Karen Jeffrey - Fish Farm, Erin, Ontario
"Before installing our windmill aeration system we had experienced fish kills during the winter months. Our Koenders Windmill Aeration system has kept our pond open and fish healthy during the winter months and we have never had a fish kill since."
John Veriha - Marinette, WI
"I have had one of your Koenders Free Air windmills installed on our 2 acre fish Pond for over 8 years. Since we have installed this windmill aeration system I am pleased to say that we have never had one fish die."
Scott Ites - Iowa Falls, Iowa
"We have owned our windmill aeration system for 14 years and are amazed by the incredible job it is doing in keeping our pond healthy and clean. Our Koenders Windmill has removed and kept out 99% of the weeds and algae in our pond."
Robert Bergenstock - Lycoming, NY
"We have been using your windmill aeration system on our 3 acre Fish Pond for over 16 years. It may be hard to believe but we have never had an issue with the windmill. Never taken it down for any maintenance, never even done any maintenance on it."
Charles Casey - Lacon, IL
"When we bought our windmill over 11 years ago there were none of these units around. Now, anyone in the area who has a pond also has a windmill. A few of the neighbors have installed other brands but they clearly do not work as well as the Koenders Windmill."
Kevin Armstrong - Ashton, Ontario