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Our East End store, which opened in 1998, offers a convenient location just off the LIE. Our knowledgeable team will assist you in finding the right material for your next project. We service the entire East End and are proud to deliver truckloads of construction material to the south fork, north fork and shelter island. From brick and stone to electric and gas power tools, we offer a one stop shop for our customers. Visit our Riverhead location to see our showroom and outdoor display for more information about your upcoming project.

Call Us Today: (631) 369-2121

State Material Mason Supply
86 Kroemer Ave
Riverhead NY 11901

How to get here:
From I-495: Take exit 72 to merge onto NY-25 E/W Main St east toward Riverhead. Turn Left onto Kroemer Ave. State Material will be on the right.

Business Hours

Monday 6:30am – 4:30pm
Tuesday 6:30am – 4:30pm
Wednesday 6:30am – 4:30pm
Thursday 6:30am – 4:30pm
Friday 6:30am –4:30pm
Saturday 6:30am – 12:30pm
Sunday Closed

Holiday Closure
New Year’s Day
Memorial Day
Independence Day
Labor Day
Thanksgiving Day
Christmas Day

Contact info
Address: 86 Kroemer Ave.
Riverhead, NY 11901

Phone: (631) 369-2121


Contact Us Today