I regret doing business with Roger Heidelberger of North Central Contracting in Merrifield, MN. He was recommended to me by a neighbor to seal my asphalt pad and driveway. Roger bragged about how superior his rubber emulsion product was to competitive products and had plenty bad to say about his competitor's. His product and services cost $250 more than his competitors but they were "worth it" and they were "guaranteed". If I had any problems he would take care of it. All of this turned out to be untrue in my case. His product was applied in late September, 2013. By April, 2014, large sections of his driveway coating had loosened and simply blew off with a leaf blower. I called twice and left a message but Roger did not call back. I went to his home and left a message. He called but when he found out what I wanted he cut me off. I left a final message reminding him of his service commitments and my generous tips to him and his helper. He has never called back.