J Mattfeld Concrete did a great job on our concrete slab. However when if came time for payment they emailed us an invoice, the next the wife called asking me to drop payment off or them to pick up payment. I forgot to drop the payment off so the next day she called, left a voicemail and left 2 text messages, the next morning they called again then the owner showed up demanding payment. I own my own business as well. Normally you email an invoice and wait for payment to be mailed. Our concrete has been done less than a week. This business own has been very unprofessional. His work was amazing but I would not recommend him to do your work. read more