Professional General Contractor Services on Long Island

Specializing in Custom Interior Millwork, Kitchens, Baths, and Complete Exterior Home Improvements.
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Photo collage of multiple jobs J.B.T Contracting has completed on Long Island, NY

Comprehensive General Contracting Across Long Island

J.B.T Contracting LLC is your single source for complete home renovations. Instead of juggling multiple vendors, homeowners in Smithtown, Southampton, and surrounding areas rely on us to manage their projects from start to finish.

As a fully licensed and insured general contractor, we streamline the construction process. Whether you need a structural addition, a custom kitchen remodel, or exterior masonry, we coordinate every trade required to get the job done correctly.

Our Commitment to You:

Project Management

We handle all logistics, including material sourcing and scheduling.

Full-Scope Service

From rough framing and electrical to tile setting and finish carpentry, our team covers it all.

Local Reliability

We live and work in your community, serving towns from Riverhead to West Islip.

Our Interior Services

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Kitchens

We provide complete kitchen renovations to transform the heart of your home. From cabinet installation to layout reconfiguration and plumbing updates, we manage every detail to create a functional and stylish cooking space.
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Bathrooms

Update your home with a modern, efficient bathroom remodel. Our team handles everything from tub-to-shower conversions and custom tile work to vanity installation and plumbing upgrades.
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Custom millwork and carpentry work by J.B.T Contracting

Millwork & Carpentry

Elevate your interior design with custom carpentry. We construct bespoke fireplace mantles, shelving units, and built-ins that add character and storage solutions to your living areas.
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Living room, with a new floor, done by J.B.T Contracting of Long Island, NY

Flooring Installation

We offer professional installation for a wide range of flooring materials. Whether you prefer hardwood, laminate, vinyl, tile, or durable epoxy, we ensure a level, seamless finish for any room.
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Basement renovation job done by J.B.T Contracting of Suffolk County, NY

Basements

Maximize your square footage by converting your basement into a usable living area. We handle waterproofing, framing, electrical, and finishing to create playrooms, home offices, or entertainment spaces.
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Drywall, spackle & paint job done by J.B.T Contracting of Suffolk County, NY

Drywall, Spackle & Paint

Achieve flawless walls and ceilings with our finishing services. We provide expert sheetrock installation, professional spackling, and high-quality painting to give your home a polished look.
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Framing & construction work job done by J.B.T Contracting of Suffolk County, NY

Framing & Structural Work

As a licensed contractor, we safely execute structural modifications to open up floor plans. Our services include interior framing, specialty framework, and ensuring load-bearing integrity.
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Laundry and mudroom job done by J.B.T Contracting of Suffolk County, NY

Laundry & Mudrooms

Optimize your home's utility areas for better organization. We design and build custom laundry rooms and mudrooms that combine durability with efficient storage.
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Our Exterior Services

Roofing job done by J.B.T Contracting of Suffolk County, NY

Roofing

Protect your home with professional roofing installation and repair. We specialize in asphalt shingle systems, leak detection, and complete roof replacements to ensure your home withstands the elements.
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Laundry and mudroom job done by J.B.T Contracting of Suffolk County, NY

Siding

Boost your curb appeal and energy efficiency with new siding. We install high-quality vinyl and composite siding options that provide long-lasting protection and a fresh look for your home's exterior.
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Decks & Outdoor Living

Expand your living space outdoors with a custom deck, gazebo, or pergola. We design and build durable wood and composite structures perfect for entertaining in your backyard.
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Masonry and hardscaping job done by J.B.T Contracting of Suffolk County, NY

Masonry & Hardscapes

Enhance your property with expert masonry work. From stone patios and paver driveways to foundations and exterior trim, our team delivers precise, durable craftsmanship.
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Windows & door job done by J.B.T Contracting of Suffolk County, NY

Windows & Doors

Improve insulation and security with professional window and door installation. We replace drafty units with energy-efficient models that complement your home’s architectural style.
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dormers

Extensions & Dormers

Add valuable square footage to your home with a seamless extension or dormer. We manage the structural framing, roofing, and finishing to blend the new addition perfectly with your existing house.
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Two car garage interior with door opener

Garage Conversions

Transform your underutilized garage into a functional living space. Whether you need a home gym, an extra bedroom, or a workshop, we handle the full conversion process.
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Masonry and hardscaping job done by J.B.T Contracting of Suffolk County, NY

Why Homeowners Choose J.B.T Contracting LLC

Finding a reliable general contractor on Long Island can be challenging. We set ourselves apart by prioritizing communication, safety, and respect for your property. When you work with us, you are choosing a partner dedicated to bringing your vision to life without the stress.
 
  • Fully Licensed & Insured: We protect your home and our team by strictly adhering to all local building codes and safety regulations.
 
  • Complete Project Management: From Rocky Point to Southampton, we handle every aspect of the build so you don't have to manage multiple subcontractors.
 
  • Respect for Your Home: We maintain a clean and organized job site, ensuring minimal disruption to your daily life during the renovation.
 
  • Transparent Communication: You will never be left in the dark. We keep you updated on timelines, material delivery, and progress every step of the way.
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Our Simple 4-Step Renovation Process


 

1. Initial Consultation & Estimate

We start by discussing your goals, budget, and design ideas. Whether it is a kitchen remodel or a new deck, we provide a clear, honest estimate so you know exactly what to expect.

2. Design & Material Selection

Once approved, we help you finalize the details. We coordinate the ordering of materials, from flooring and fixtures to siding and windows, ensuring everything arrives ready for installation.

3. Construction & Execution

Our skilled team arrives on schedule to begin work. We handle all demo, framing, plumbing, electrical, and finish work efficiently, maintaining high standards of craftsmanship throughout the build.

4. Final Walkthrough

We do not leave until the job is done right. We conduct a final walkthrough with you to ensure every detail meets your expectations and the space is ready for you to enjoy.

Our Service Areas

Click on a town to learn more about our work in your neighborhood.

• Bay Shore • Deer Park • East Islip • Flanders • Great River • Hampton Bays • Huntington • Miller Place • Mount Sinai • Nesconset • Northport • Oakdale • Patchogue • Port Jefferson • Quogue • Riverhead • Rocky Point • Sag Harbor • Setauket • Shoreham • Smithtown • Southampton • St. James • West Islip

Frequently Asked Questions

Ready to Transform Your Home?

We are ready to get to work. Call us now or fill out the form for a free estimate.