Harold MacQuinn, Inc.
General Contractors
Quality Service Since 1933

Excavation

Grading

Drainage

Driveways

Sewer & Water Lines

Septic Design & Service

Tennis Courts

Utilities

Retaining Walls & Shoreline Stabilization
We have all the materials
We carry a large inventory with over 15 different stone samples in stock at all times including all kinds of crushed stone, granite, ledge and specialty gravels and sands.
We’re a supplier of MDOT gravel – certified and tested to meet the MDOT specification.
We provide aggregate materials for residential use as well as other contractors. All or our materials come from our own quarries and are screened and processed at our plant in Hancock.
![]()
Check out the materials
No Project Too Big Or Too Small
Since 1933, Harold MacQuinn, Inc. has provided site work, excavation, aggregates and general contracting services to residents, municipalities and businesses in Ellsworth, Blue Hill, Lamoine, Mount Desert Island, and all of Hancock County.
In 1933, Harold MacQuinn started digging in the dirt and his family has continued the tradition. Today, Harold MacQuinn, Inc. is still family-owned and operated by the third generation, Paul MacQuinn. True to the company’s founders, Paul continues to build and uphold the company’s reputation for high standards in road, sewer, site work and other heavy construction.
With its office in Hancock, Maine, Harold MacQuinn, Inc. operates with an experienced team of management and employees who take pride in good workmanship, quality materials, high standards in safety and flawless execution. They have been recognized for several regional and national awards including the Associated Constructors of Maine Major Achievements in Construction Award.
Harold MacQuinn, Inc. strives toward excellence through commercial, industrial, municipal and residential earth work with quality materials and outstanding service.
Get Free Estimate
We've Been Here For Over 90 years
Based in Hancock, just outside of Ellsworth, Maine, Harold MacQuinn Inc. (HMI) is an earthwork construction company specializing in screened and processed materials like sand, loam and crushed stone.