Ganneston Construction Corp

Jeff Ohler has been with H. E. Callahan Construction Co. since 1983 and has over 40 years of construction experience on a variety of construction projects and contracting delivery methods. He started with the company as a project manager and became president in 1997.

Since 1962, our general contractors have performed a variety of construction jobs that suit your aesthetic and spatial needs. We also offer a variety of concrete construction services to meet your needs, including residential, commercial, and industrial applications. Contact our general contractors to request an estimate for first-rate residential and commercial construction services.

Welcome to Prock Marine Company. We pride ourselves in providing our customers with the best quality products and personal service. At Prock Marine, we take the extra steps in creating our products and we hope that you'll find something that you like. We can also customize a design to meet your specific needs; call or email and let us know what you want. Prock Marine Company owns a waterfront location in Rockland, Maine serving as docking space for our vessels; a welding shop, a maintenance shop and float construction area. Among the equipment that Prock Marine Company owns are nine barges, three tugs, twelve trucks and seven cranes. Prock Marine employs an average of 35 men year round plus an engineering and office staff. Call us today!