Keystone Associates provides professional land surveying services across Upstate New York and Northeastern Pennsylvania. Our experienced team delivers accurate, dependable results for clients in Broome County, New York, Susquehanna County, Pennsylvania, and surrounding areas in both states, ranging from urban municipalities to rural communities.

We offer a full range of surveying services, including construction stakeout, as-built and ALTA/NSPS surveys, boundary and topographic surveys, elevation certificates, mortgage surveys, and pre-construction site control. Specialized services include pre and post dredging surveys, elevation verification, and machine control network installation.

With advanced GPS technology and modern computer systems, we deliver accurate, efficient results that align with industry standards and regulatory requirements.

Our clients include land developers, government agencies, contractors, utility companies, renewable energy firms, design professionals, and homeowners. We handle projects of all sizes—from residential properties to large-scale commercial developments.

With over 30 years of experience and licensure in both New York and Pennsylvania, Keystone Associates is a trusted name in land surveying. As active members of the New York State Association of Professional Land Surveyors (NYSAPLS) and the Pennsylvania Society of Land Surveyors (PSLS), we adhere to the highest professional standards in the industry. Whether you’re a homeowner or managing a large-scale development, our team delivers clear communication, dependable service, and results you can trust.

Contact Keystone Associates today to discuss your project and receive a customized proposal. We’re here to help you move forward with confidence.

We proudly serve clients throughout Upstate New York, focusing on Broome, Tioga, Delaware, Chenango, Cortland, Otsego, and Sullivan counties, as well as Northeastern Pennsylvania including Bradford, Susquehanna, Wayne, Wyoming, Lackawanna, and Northern Luzerne counties.