YOUR BEST CONTRACTOR FOR HOME ADDITION LONG ISLAND

Second-Story Additions

Looking to expand your home without moving?

Cascella and Sons are the trusted experts for second-story home additions across Suffolk and Nassau County. Whether you’re expanding to add more bedrooms, a larger living space, or a full upper-level transformation, we build seamless additions that feel like a natural part of your home. With over 20 years of experience, we manage every detail—from design and permits to construction and finishing—delivering expertly crafted second-story additions built for comfort, quality, and lasting value.

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INNOVATIVE SOLUTIONS
FOR ALL YOUR
HOME IMPROVEMENT NEEDS

Second Story Addition Contractors on Long Island

When planning a second-story addition, dormer, or home extension, choosing a design that complements your home’s existing architecture is essential. Second-story additions and dormers allow you to expand upward, creating more functional living space by elevating or extending the top level of your home. Traditional extensions add square footage outward, building onto the existing structure with a new foundation and layout.

Equally important is selecting an experienced contractor capable of handling the precision, planning, and structural coordination required for a project of this scale. With decades of expertise, Cascella and Sons Construction manages every phase with craftsmanship and care—from concept and permits to build and completion. Trust our team to deliver a seamless, durable, and beautifully integrated addition to your home.

A Step-by-step guide to our home addition process

building your dream

Embark on a journey with Cascella and Sons Construction as we transform visions into tangible realities with our detailed home addition process. Our methodical approach ensures every project is crafted with precision and care.

Check out our process that shows the final visuals on this complete home addition in East Islip, New York.

  • Visualize your home remodel - Long Island

    Hover 3D Visualizations

    PART 1

    We start with an advanced 3D rendering using Hover 3D technology. This allows you to see and adjust the planned additionbefore construction starts, ensuring the final product will be exactly as you envisioned.

    Make It
  • Home Addition Work in progress video

    Foundation & Framing

    PART 2
    Click the Image the play the video

    In this crucial phase, we reinforce the foundation to support the new structure and begin framing the addition. This sets the stage for the entire project, providing a sturdy base and structure for the upcoming enhancements.

    Make It

  • Exterior Finishing

    PART 3
    Click the Image to play the video

    Our team then focuses on the final touches, including installing siding, windows, and doors. This phase brings together all the elements, giving life to the design and transforming It Into your dream space.

    Make It

  • The Completed Addition

    PART 4
    Click the Image to play the video

    The final step is the unveiling of the completed addition. Here you can see the transformation fully realized, with all elements coming together seamlessly. The new space is now ready for you and your family to enjoy and make lasting memories.

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Front view of a modern two-story house with white siding and a stone foundation, black roof, steps leading to the front door, and a well-maintained lawn under a partly cloudy sky.
Close-up of a house's gabled roof, showcasing white siding, black trim, and a decorative wooden truss, with a clear blue sky in the background.

Long Island Home Additions

Second-Story Additions on Long Island

If you love your home but need more room to grow, a second-story addition offers the perfect solution—expanding your living space while allowing you to stay in the neighborhood you love. From adding bedrooms and bathrooms to creating primary suites or larger family spaces, building upward is one of the most efficient ways to maximize space without sacrificing yard or outdoor living areas.

With a full design-build approach, Cascella and Sons Construction evaluates your property, goals, and budget to determine the best path forward. Our team guides you through every step, helping you explore the possibilities and delivering a second-story addition that feels like a natural extension of your home—designed for today and built to last.

Aerial view of a house with dark gray shingle roof, white exterior walls, and a front door, surrounded by a white fence and neighboring houses.

If you’re considering a second-story addition or dormer expansion, you don’t have to navigate the process alone. Cascella and Sons Construction manages every phase—from early planning and design to permits and final build—so you can move forward with confidence and clarity.

We know construction can feel overwhelming, which is why our team provides expert guidance, honest recommendations, and hands-on support at every step. Whether you’re adding a dormer, building a full second story, or taking on a larger home transformation, we deliver a seamless process and results you can rely on.

BEST CONTRACTOR FOR HOME ADDITION

We Build Second-Story Additions That Blend Seamlessly With Your Home

A New Addition Increases the Value of Your Home
and Provides Additional Space

We are Local Long Island Contractors for Home Additions and Extensions and we can help you make the most out of your home renovation project. Whether you are building a new dormer, adding an extension to an existing home, or changing your overall design to incorporate an extra room, we are happy to help. Be it advice, planning & design, or construction, Cascella and Sons Construction knows that every customer has different needs and preferences. We will work closely with you to understand what is important for you to help you achieve your goals.

Explore Types of Home Additions

  • long island home extensions

    Second Story Additions

    A second-story addition is a great way to add more living space to your home. A second-story addition can include a master bedroom suite, additional bedrooms, or even an office or playroom. A completed second-story addition will help increase the value of your home and can also increase the comfort and enjoyment of living there.

    Make It
  • bathroom-addition-long-island

    Bathroom Additions

    Bathroom expansions are a great way to make your bathroom bigger and more functional. The expansion can be done in the form of a room addition, remodeling or even a new bathroom. Increase your space for storage, comfort and relaxation in your new bathroom addition. The process usually begins by talking with you to determine what your goals are. Let Cascella and Sons help you determine what size bathroom expansion is most appropriate for your needs, whether it be a room addition or a full-blown remodel.

    Make It
  • kitchen extension contractors in Long Island

    Adding or Expanding a Kitchen

    Extending your kitchen is a great way to create more space and make the most of the area you already have. If you’ve got limited space and want to maximize the use of your current space, then extending could be the answer. In order to do this safely and effectively, it’s important that you take into account any structural changes that may need to be made. This can include things like adding in extra walls or beams in order to support extra weight or installing new plumbing electrics if necessary.

    Make It

Types of Home Additions We Build

  • long island home extensions

    Second Story Additions

    A second-story addition is a great way to add more living space to your home. A second-story addition can include a master bedroom suite, additional bedrooms, or even an office or playroom. A completed second-story addition will help increase the value of your home and can also increase the comfort and enjoyment of living there.

  • kitchen extension contractors in Long Island

    Adding or Expanding a Kitchen

    Extending your kitchen is a great way to create more space and make the most of the area you already have. If you’ve got limited space and want to maximize the use of your current space, then extending could be the answer. In order to do this safely and effectively, it’s important that you take into account any structural changes that may need to be made. This can include things like adding in extra walls or beams in order to support extra weight or installing new plumbing electrics if necessary.

  • bathroom-addition-long-island

    Bathroom Expansion & Additions

    Bathroom expansions are a great way to make your bathroom bigger and more functional. The expansion can be done in the form of a room addition, remodeling or even a new bathroom. Increase your space for storage, comfort and relaxation in your new bathroom addition. The process usually begins by talking with you to determine what your goals are. Let Cascella and Sons help you determine what size bathroom expansion is most appropriate for your needs, whether it be a room addition or a full-blown remodel.

  • house extension contractors in Long Island

    Adding a Bedroom, Office or Rec Room

    We’re experts in adding a bedroom, office or rec room addition to your home. Cascella and Sons Construction can help you plan the perfect room addition to meet you and your family’s needs. We are the leading home addition experts on Long Island with a team of experience builders that can help create a space that blends seamlessly with the existing footprint and style of your home. Room additions are a great way to add living space to your home without having to move. A single-room addition can easily transform your home so if you’re considering any type of home addition including a bump-out master bedroom addition, we can help build you the addition of your dreams.

  • dormer-additions-long-island

    Dormer Additions

    Dormer additions can be a great way to add storage or living space to your home without the need for major construction. If you're seeking additional storage space, increased illumination in your room, or the creation of a spare bedroom, consider the benefits of a dormer addition. A dormer is an architectural feature consisting of a roofed structure that projects from the plane of a sloping roof, usually containing windows and doors. A dormer addition will provide you with the extra living space or storage space you need and usually costs less than a home extension.

  • long island home extensions

    Basement Additions

    Most older Long Island basements were not designed as livable space. They were designed for storage of either stove fuel or personal belongings, but basements have awesome potential. If you have an unfinished basement that does not meet the town or village’s requirements for livable space, house lifting, or house raising, is a process that’s used to elevate your home and create more head room. Once that’s done, a basement remodel can transform the newly created space so that it’s suitable for living in. Excavating or house lifting in order to create useable basement level of the home is also an option for basement additions.

HOME ADDITION EXPERTS

let’s chat about your home addition!

If you have been considering a home addition or extension on to your home, we can help you make the best decision for your family and budget. Our experienced team will help you choose the right design that will fit in seamlessly with your existing home’s footprint and style. We work with you continuously throughout your construction project to ensure everything is running smoothly and to your liking.

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