Bundle deals on air conditioners and related products cut prices by as much as $450 during this limited time sale.
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Save $150 on Windmill air conditioners in the fall sale, a discount on sale models for home cooling and comfort.
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Save up to 25% on Windmill filter auto refills and keep your water fresh year round.
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Windmill is running bundle and individual product sales this fall, with the bundle deal offering up to $450 off air conditioners and related products as its main offer. If you are shopping for an air conditioning system or planning a bigger home cooling setup, these sales could save you significantly.
Buying an air conditioner on its own. The Fall Sale gives you $150 off Windmill air conditioners on sale models. If you are building a bundle that includes an air conditioner plus other cooling or air quality products, the bundle sale may save you more: on a $1500 order where the bundle deal reaches the full $450 discount, for example, you would pay $1050 instead of $1500, a saving of $450, compared to $1350 if you used only the individual $150 off air conditioner deal. Compare the bundle price and the sum of individual discounted prices on the Windmill website to see which saves more for your specific products.
Buying filter auto refills. The filter auto refill sale cuts up to 25% off these products. A 25% saving on a $100 filter order, for example, brings the price to $75. This is separate from the air conditioner sales and applies only to filter products.
Choosing between offers on your cart. All three sales are public deals with no code required, so work out the final price under each one and take whichever leaves the lower total. The bundle deal and the individual air conditioner discount both apply only to sale products, so check that your items qualify before deciding. If you are buying air conditioning equipment and filters together, look at the bundled price first; if that does not include the filter products you want, add them separately and apply the 25% filter discount to those items. The biggest sale we have seen Windmill run in the 12 months to October 2026 was up to 35% off in September 2026, so keep an eye out for higher discounts in future months if you can wait.
Here are some great tips & tricks for extra savings at Windmill:
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