Very helpful over phone when I called in for an estimate. Estimator came on time. He was not pushy (the company literature states they are not commission salesmen). We were very happy with the installation. The workers cleaned up well and we are happy with our new gutters. We had them back this fall to clean the gutters. We are considering covers to avoid future cleaning (wish we bought them when they were installed). Overall great company, great customer service, great product.