About Absolute General Contracting, Inc.

Owner, General Contractor

Kieran McKinney is one of six brothers, European-born and Irish-bred, with roots in Donegal and Galway, Ireland. Bringing over 40 years of construction experience to the Boston area, Kieran is a well-known developer and general contractor throughout Massachusetts. His strong work ethic is inspired by his parents, Henry Joseph (Joe) from Donegal and Mary from Galway.

Accredited as a Master Carpenter in 1991 by the City and Guilds of London, Kieran relocated to Boston in 1998 and co-founded Absolute General Contracting with Gary MacDonald in 2000. Kieran’s expertise spans every facet of the construction industry—from securing permits and framing to high-end finish carpentry and structural repairs.

He currently resides in Milton, MA, with his wife Jennifer, his two stepdaughters Alex and Ella, and their beloved bulldog, Bee.

Gary MacDonald grew up in the Squantum neighborhood of Quincy, MA, one of four brothers raised in a hardworking family. His mother, Joan, was a Registered Nurse, and his father, William, served as a Sanitation Inspector for the City of Boston. Graduating from Quincy Vocational Technical High School in 1985, Gary began working in construction shortly thereafter.

His dedication to quality workmanship and strong work ethic have been pillars of his career. Gary partnered with his longtime friend Kieran McKinney in 2000 to establish Absolute General Contracting, focusing on delivering superior construction services to clients across Boston. Gary continues to live in Squantum with his partner Suzanne and four of their six children.

Absolute General Contracting, Inc. remains committed to providing comprehensive, reliable construction and general contracting services led by experienced professionals who value quality, integrity, and client satisfaction.