My name is Warren Colby, General Manager / Owner of GMI Asphalt and Construction. Since 1977, GMI Asphalt has built a solid reputation as one of central New Hampshire's most relied upon asphalt paving companies. The grading, paving, excavation and construction crews take great pride in their work, assuring the highest quality and prompt service.

Our management team consists of two salesmen and three superintendents who are readily accessible and understand the importance of communication. Our customers deserve a quick response to ensure their scheduling needs.

If you would like a competitive quote or need help on any of your projects, please give our office a call at 603-524-2241.

We appreciate your business and look forward to working with you.

Sincerely,

Warren Colby