I am a homeowner that was misled by an acoustical consulting contractor. They came to assess the extent of the impact noise and vibration in my home.. and recommended for us to install rubber underlayment and floating floors on the top floor to combat both issues. They promised 70% reduction in noise but it was not explicitly written in the contract. Halfway through the project, I had expressed concerns since all the rubber underlayment was installed and we could still hear the impact noise and the vibrations had gotten worse. We were told to see the project all the way through and allow them to finish installing the laminate flooring to see if it would work. We did... and now the contractor is saying that our house has structural issues and that he is not taking any responsibility for the lack of noise improvement and the vibration issues that have exacerbated. He is now suggesting that we strengthen the joists and promises that we will see a 70% reduction in noise after doing so. I can no longer trust the word of this contractor and don't want to pay to have more work done that may cause even more issues. The estimate we signed was for 13k and we only paid 50% of it.