Do not trust the expertise of the business owner, Jeff Cooper. He was recommended from Best Laminate to install vinyl flooring on our concrete slab built condo. Best Laminate had plastic barrier on our order and Jeff advised us to cancel the vapor barrier because we did not need it - stating he never uses it on concrete. After about 8 months, we noticed the planks were lifting. We called Jeff out to determine what was going on. He and his installer, Joe, both implied we have a water drainage problem somewhere and we should get experts to determine why our slab was presenting moisture. The back of our CoreTec planks were moist and mildew was present. Following Jeff's advice, two expert foundation companies said we have no water drainage issues and slabs normally breathe moisture through them - we simply needed a vapor barrier. We also spoke to flooring experts, the CoreTec manufacturer itself and an architect. They all, without exception, stated you must place a vapor barrier on slabbed concrete. Also, our neighbors told us they had plastic between their vinyl flooring and concrete slab. As a result of this, we had to get our total floor removed and reinstalled correctly. Jeff's position was that if you put plastic down as a vapor barrier, the concrete will crumble!! We sent a certified letter to River Floors to try to resolve this matter amicably and heard nothing back. I tried to reach out to him with no response. Therefore, DO NOT TRUST THIS BUSINESS! There are other floor companies who know exactly how to properly install flooring - River Floors is NOT one of them. read more