Crucial roof has excellent customer service and reasonable prices for sealing seams of EPDM gutters. I had 3-4 quotations given to me but was most impressed with the knowledge, professionalism and honesty of GREG. He even threw in a couple of free seals that he hadn't quoted for at the beginning. He also came back promptly to check the gutters when I had questions and performed some minor work which wasn't related to the gutter seams for free. I highly recommend this company.