Our Services

Construction and Renovation Services in Long Island, NY

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Kitchen & Bathrooms

Transform your kitchen and bathroom into luxurious, functional spaces with Cornerstone. We specialize in modern upgrades, innovative layouts, and high-quality finishes, ensuring your home’s most-used spaces reflect your style and meet your practical needs.

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Roofing & Siding

Protect your home while enhancing its curb appeal with our roofing and siding services. Whether you need a full roof replacement or updated siding for improved energy efficiency and aesthetics, Cornerstone delivers durable, weather-resistant solutions.

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Extensions & Dormers

Expand your living space with expertly crafted extensions and dormers. From designing a seamless addition to completing the construction, we ensure your home grows with your family while maintaining its original charm.

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Foundations & Helical Piles

Secure your home from the ground up with our foundation and helical pile services. We provide sturdy, dependable solutions for new builds, repairs, or structural reinforcements, ensuring long-lasting stability for your property.

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House Lifting

Protect your home from flooding or create additional space with our professional house lifting services. We use advanced techniques to safely elevate your home, adhering to all building codes and minimizing disruptions.

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Bulkheads

Preserve your waterfront property with Cornerstone’s custom bulkhead solutions. Designed for durability and style, our bulkheads safeguard your land from erosion while enhancing the shoreline’s visual appeal.

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Concrete Work

From driveways to decorative patios, our concrete work blends functionality with flawless design. Cornerstone’s team delivers precision-crafted concrete solutions tailored to your specific project needs.

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Flooring

Elevate your interiors with stunning flooring installations. Whether it’s hardwood, tile, or luxury vinyl, our team ensures expert craftsmanship and a polished finish that enhances the beauty and value of your home.

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General Contracting

Simplify your construction project with Cornerstone’s comprehensive general contracting services. From project management to execution, we handle every detail with precision, ensuring your vision becomes reality on time and within budget.

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Commercial Services

Build or enhance your business space with Cornerstone’s commercial services. Our team specializes in creating professional, functional environments tailored to your industry, helping your business thrive with spaces designed for success.