Providing Site Work, Masonry and Landscape Construction & Construction Consulting Services Across the Hudson Valley and the Tri-State Area.

Site work construction company

At Dillon & Semenovich Inc. we take great pride in the integrity, professionalism, and expertise we invest in all of our clients’ projects.

Dillon & Semenovich, a woman-owned site construction company, is dedicated to delivering projects with safety, accuracy, and fiscal responsibility. Rooted in values of reliability, integrity, expertise, and a profound respect for our environment and history, we prioritize your project and our reputation above all else. Our mission is to ensure every project is not only completed on time but done right the first time. Committed to supporting MWBE initiatives, we forge partnerships for success, making construction endeavors easier and more fulfilling for our client.

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What Our Clients Say

We take pride in providing top-quality site development and construction services that our clients trust and rely on.

Happy Clients

The results have been amazing. Our yard is dry even after heavy rains this summer, and the sump pumps in our basement, which typically run constantly, have been very quiet since the project was completed. Janine and her crew are honest and responsive and were great to work with at every stage. We couldn’t be happier with the whole experience. Many many thanks.
– Cathy and Chris

Janine and crew were efficient, professional and excellent through each phase. We are happy with the beautiful retaining wall, planters and walkway. Highly recommend for the craft they do and professionalism.
– Amy Tung

A big ‘Thank You’ goes to Janine Williams-Greer at Dillon & Semenovich Inc for creating a much more appealing look to our driveway! I’m blown away by Janine’s talent, time and professionalism! The only thing left to do is finish our address plaque and we are set until spring, when we’ll do some gardening in this space!
– Jenna Perkins