For over 50 years, J.G. MacLellan Concrete Co., INC. has been serving the construction industry with high-quality concrete products and services to meet all of your construction needs. Call one of our 13 locations in Massachusetts and New Hampshire today so that we can meet your needs for concrete, aggregate, and other special products & services! Not only do we offer a wide range of concrete and aggregate products. Aside from concrete, we also offer other products such as aggregates, fiber reinforcing, specialty concrete, and much more!