I'm writing this review due to the Unprofessionalism.. GS & son has shown us we hired them to put down cement In our backyard it was okay.. they then went on to do the power washing of the walls and pointing, after a couple of days the wall had a white chemical covering on it. I contacted GS & son they said they will look into it. Know one showed up I contacted them again no response, but they had no problem coming to get their payment. Their workers are Dirty young men they emptied the oil from the power washing machine on our lawn, they left dirty gloves, water bottles, cups, etc garbage all over, I will never recommend these people keep them away from your property.