As of January 2019, Ironwood Builders is closed down.

We would like to thank all of our past clients, who have made our jobs constructing their homes so fun, creative, and exciting over the past 10 years. We would also like to thank our crews and subcontractors that have helped make the process smooth and enjoyable for both us and our clients.

Between 2009 and 2018, Ironwood Builders provided services for the highest level of energy efficient residential construction and green building — from full construction services to consultation in Passive House design and residential energy efficiency.

After a successful run as one of the region's premier builders, Craig Modisher will be in the position of Senior Construction Coordinator as the newest member of STREAM Collaborative’s senior staff.  Craig will use his hands on practical experience to help STREAM deliver on their commitment to design Zero Energy Ready buildings throughout the Fingerlakes region.

STREAM Collaborative Architecture + Landscape Architecture DPC is a local first firm in Ithaca, NY founded by Noah Demarest AIA, ASLA, LEED AP, CNU. STREAM offers a wide array of services from full service architecture and landscape architecture to new media.  Their staff includes experienced designers who have spent decades shaping the built environment including work on custom residential projects to large scale master plans and everything in between.

Benj Sterrett, Ironwood Builders co-founder, will be taking this opportunity to spend quality time with his family, and pursue other creative interests.


We specialize in the highest level of energy efficient residential construction and green building techniques. We also offer consultation services in design and Passive House details. Click here to learn more.


We are proud of the work that we do. Click here for photos of our previous projects.


We provide our clients with excellent service, clear communication and fine craftsmanship. Click here to learn more about our staff and the Ironwood philosophy of doing business.