Ganneston
CONSTRUCTION CORP
General Contractor • Construction Manager • Design Builder
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completed projects
Ganneston Construction Corp has been providing general contracting, construction management, and design/build services for various clients in the public and private sectors of Maine since 1963. The company constructs to LEED and/or Green Building Standards. We have a considerable history of successfully completed projects and current projects of various types, sizes, dollar values, and complexity.

We have significant experience in wood, concrete and steel-framed, commercial and industrial buildings, including retail, office, warehouse, manufacturing and industrial facilities.

We welcome an opportunity to talk with you about our capabilities, our past and present work, and what we can bring to your project. Please feel free to contact us to discuss your needs.

completed projects

Featured Project

Florence House - Portland, Maine
slide show of featured project

For details about this project, visit the Multi-Family Section in our Portfolio.

Customer Testimonials
"I truly believe that much of the quality in our finished facility is a result of the expertise of you and your colleagues at Ganneston. At each step of the construction process our concerns and suggestions were addressed in a quick and professional manner. We benefited greatly from the attention to details provided by all levels of your personnel."

- Richard A. Speer, Library Director
Lewiston Public Library
Lewiston Library
Renys Department Store "It is the quality of your service that makes us come back to Ganneston again and again for all of our construction needs."

- Mary Kate Reny, Property and Operations
R.H. Reny, Inc.






Read more Customer Testimonials...


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3025 North Belfast Avenue • P.O. Box 27 • Augusta, Maine • 04332-0027
Tel: 207-621-8505 • Fax: 207-621-8508