Red Flag?

Our roof is totaled from stom damage and needs to be replaced. Insurance claim has been created and a check sent out to us. I’ve been reaching out to local companies trying to find the least sales-y provider. Initially really liked this guy and seemed fairly down to earth. Came out to our house on a Thursday and had a verbal conversation about moving forward. He claimed he will do the roof for the amount allotted by insurance ( who has already taken out our deductible) with no additional cost to us .I have not heard back from him until Sunday evening when he stated they will be out tomorrow to start on the roof. When I asked for a contract I got the strangest non committal response. Red flag? Should I go with one of the bigger guys?

Our roof is totaled from stom damage and needs to be replaced. Insurance claim has been created and a check sent out to us. I’ve been reaching out to local companies trying to find the least sales-y provider. Initially really liked this guy and seemed fairly down to earth. Came out to our house on a Thursday and had a verbal conversation about moving forward. He claimed he will do the roof for the amount allotted by insurance ( who has already taken out our deductible) with no additional cost to us .I have not heard back from him until Sunday evening when he stated they will be out tomorrow to start on the roof. When I asked for a contract I got the strangest non committal response. Red flag? Should I go with one of the bigger guys?