NuBlock Concrete LLC

Do not trust this contractor. I hired him and he did not pay the dumpster. He charged me twice as much as they charged him and he did not pay the dumpster people and now the dumpster company is threatening me to take me to court. I did pay this contractor and he has the money to pay the dumpster people but he did not pay them. The dumpster people charged him $300 only but he charge me $600 so he had much more money to pay them instead. Updated on 09/17/2026: I received by certified mail a letter from R and C ready mix that the company NuBlock Concrete LLC wrote them a check for $1504.14 in July in 2026 and it bounced insufficient funds. R and C mix have tried to get hold of NuBlock Concrete LLC several times and Nublock ignores their calls. I paid Nublock with a check which cleared for the concrete. He specifically asked for a check for concrete and I wrote him a check for the concrete. So he had a check ,he had plenty of money to pay for it. Now, R and C ready mix are threatening to put a lien on my property because of lack of funds from Nublock Concrete. His name is Nicholas Karston, he is the owner of the NuBlock Concrete LLC and if you pay him, he will take the money and he will not pay for anything he ordered. Do not trust this man and if you talk to him he will lie and tell you he paid them. He is a liar.