Get In Touch
Tell us about your project and we will follow up with honest answers and a free consultation. No pressure, no obligation.
Request Your Free Consultation
Fill out the form below and someone from our office will get back to you, usually the same day.
Visit, Call, or Say Hello
Prefer to talk it through? We are open daily from 8am to 8pm, and the office is right on Route 25A in Wading River.
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Address6304 NY-25A, STE 1, Wading River, NY 11792
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Phone(631) 964-4564
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HoursOpen daily, 8am to 8pm
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Service AreaAll of Long Island, New York
Three Principles We Never Compromise
Your home is your biggest investment. We protect it with the standards that have earned Keystone Construction its reputation across Long Island.
Exceptional Craftsmanship
Every detail built to a standard we are proud to put our name on, inside the walls and out.
Honest Communication
Clear scopes, clear budgets, and one point of contact who actually answers the phone.
On Schedule, On Budget
A scope and schedule you approve before we start, and a project delivered on what we promised.
Rather Just Pick Up the Phone?
A five-minute call is often all it takes to know whether your project is feasible and what it might cost.