Duluth and Superior, Wi sealcoating and asphalt maintenance for driveways and parking lots is serious business. Our weather is brutal on unprotected asphalt. A-1 Asphalt was founded in 1989 out of the need to service the Duluth Superior and Twin Ports area with quality asphalt maintenance and seal coating. Since then A-1 has grown to service over a thousand satisfied customers and our work has spread through Northern Wisconsin and Northern Minnesota. Visit our PROJECTS page to see samples and descriptions of our work. We are a licensed, insured, and bondable company ready to serve you.