Unique Resources for Unique Projects

Your one-of-a-kind home or stonework project is only possible with unwavering excellence at every step. Hillsgrove offers exactly that, combining quality and one-stop partnership to eliminate unwanted trade-offs.


Proprietary Stone Sources

With connections throughout New England, including our own quarry, we can source native materials such as cut granite, quarry stone, ledge and fieldstone to your specifications, as well as imported stone. The result is a distinctive look in harmony with your natural landscape.

Unmatched In-house Expertise

We maintain New Hampshire’s largest roster of full-time stone artisans and masonry experts, allowing us to provide consulting, design, selection, sourcing, installation or project management services with seamless communication.

Award-winning Artistry

Our work has earned a variety of national and regional honors, including the American Institute of Architects Honor Award; the Boston Society of Landscape Architects Award; and the Leon Pearson Award for Excellence in Landscaping.

Trusted by Premier Clients

The ability to work as part of a cohesive team is essential to any project, and we’re proud of our long-term relationships with many of New England’s premier architects and contractors.

Landscape Architects


Greg Bilowz
P.O. Box 1326
Sterling, Massachusetts 01564


Greg Lombardi
2235 Massachusetts Avenue
Cambridge, Massachusetts 02140


General Contractors