We have used Illinois Energy for our windows, siding and new front entry (door). We went with the top-level kit for the windows and siding, and a mid-level front door. This has transformed our house! Windows were the first item replaced: Prior to the new windows, we could hear every bit of wind or storms, and the dog would be hiding to get away from the noise. With the new windows, that noise was significantly reduced, so much that our dog no longer notices the wind. The windows are high quality and we had only one minor issue, and that was corrected as soon as we notified them. The windows come with a lifetime warranty that even covers damage to the windows. We have already had our screen door (installed with a patio door) repaired twice, both times due to humans or dogs trying to walk through the door. This company stands by their products. Our siding was done about two years after the windows. The same salesman came, and we worked out our deal with Tristan, we like working with him. It was expensive, but we have a 3K square foot house and a two-car garage. We also went with the upgraded siding that has insulation built into the siding. It's thicker and each of the lines in the panel are larger than the standard siding. I have a lot of faith in Illinois Energy doing right by us. So far, they've delivered everything they promised, and the quality of the product is excellent. Their warranty is better than any I’ve seen, and we’ve seen it in action. This is a good o
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