Marble Stone Fabrication in Long Island, New York

In-house design and stone fabrcation, seamless installation, and specialty stone projects — backed by 40+ years of craftsmanship.

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Full-Service Stone Fabrication & Installation

From slab selection to final install, every project is handled by our in-house team.

Kitchens

Countertops, waterfall islands, backsplashes, mitered edges, custom details.

Bathrooms

Vanities, shower walls, integrated sinks, tub surrounds.

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Custom & Specialty

Fireplaces, feature walls, furniture, architectural elements.

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Project Highlights

  • intermarble custome onyx and quartzite side table pieces

    Hamptons Designer Showhouse 2025 – Sag Harbor

    Taj Mahal quartzite and green onyx — sculptural side tables fabricated and designed in-house by Intermarble. Curated by JMY Interiors for the Lower Lounge at the Hamptons Designer Showhouse, presented by Cottages & Gardens in support of Stony Brook Southampton Hospital.

  • arabescato marble island countertop in long island new york

    The East Coast Farm House

    Arabescato marble island countertop with bold natural veining. Fabricated for a residential project in Long Island.

  • intermarble cararra marble fireplace installation long island new york

    Monochrome Living

    Carrara marble fireplace surround, custom fabricated and installed for a New York residence.

  • The Kings Point Kitchen

    Bookmatched Calacatta marble accent wall and backsplash. Kings Point, Great Neck NY residence.

  • green onice wet bar installation intermarble ny

    Onice Stone Bar Installation

    Green onyx wet bar countertop, custom fabricated for a Long Island residence.

  • Emperador Marble – Structural Bench

    Structural bench in Emperador marble, designed and fabricated in-house for the lobby at 18 Dock, a luxury residential development in Stamford, Connecticut.

Our Process

  • We review design layouts, drawings, measurements, and material options to align on scope and budget.

  • Templating and CNC precision cutting in our Long Island facility, located in Port Washington, New York

  • Professional in-house installers ensure seamless alignment and clean finishes.

Built on Craftsmanship. Backed by Experience.

Family-owned and operating for over 40 years, Intermarble combines modern fabrication technology with traditional hands-on craftsmanship.

Every cut, edge, and seam is executed with precision — because details matter.

Stone & Surface Materials

Every natural stone is one-of-one, hand-selected from leading slab yards in New York and abroad.

White marble natural stone slab with soft gray veining, highlighting the organic variation and timeless character of marble.

Marble

  • Marble is widely used in high-end kitchens throughout New York and Long Island for its depth, movement, and timeless appeal.

    Because marble is composed primarily of calcite, it is softer than quartzite or granite and can etch when exposed to acidic substances. Many homeowners, designers, and chefs still prefer marble for kitchen countertops, embracing the natural patina that develops over time.

    If you prefer a pristine surface with minimal maintenance, quartzite may be a better fit. If you appreciate character and natural aging, marble remains a classic choice.

    We guide each client based on lifestyle, cooking habits, and long-term expectations.

  • Marble can be finished in several ways, the most common being polished and honed.

    Polished marble has a reflective surface that enhances color and veining. It is slightly more resistant to staining but can show etching more visibly.

    Honed marble has a matte finish with a softer appearance. It tends to show etching less dramatically but may absorb oils more easily.

    The right finish depends on the application and desired aesthetic. We review samples during slab selection to determine the best option for your project.

  • Marble is a porous natural stone and should be sealed upon installation. Periodic resealing helps protect against staining.

    Routine maintenance includes:

    • Mild, pH-neutral cleaners

    • Avoiding acidic substances

    • Prompt cleanup of spills

    With proper care, marble surfaces maintain their integrity for decades and develop a natural patina unique to each space.

Natural honey onyx stone featuring translucent layers and golden veining, used for custom onyx fabrication and architectural stone projects by Intermarble.

Onyx

  • Onyx is known for its translucency and layered mineral banding. When backlit, the stone reveals depth and movement that cannot be replicated by other materials.

    Because onyx is softer and more delicate than marble or quartzite, it is typically used in feature installations such as:

    • Wet bars

    • Feature walls

    • Decorative panels

  • Onyx is best suited for lower-traffic applications where its visual impact can be fully appreciated.

    Proper fabrication and structural support are essential due to its fragility.

Quartzite natural stone slab with layered veining and tonal depth, showcasing the strength and beauty of quartzite.

Quartzite

  • Quartzite and marble may appear similar, but their performance differs significantly.

    Quartzite is formed from sandstone that has undergone intense heat and pressure, resulting in a dense, durable stone composed primarily of quartz crystals. It is harder than marble and more resistant to scratching and etching.

    Marble offers softness and patina. Quartzite offers durability with similar visual movement.

    For high-traffic kitchens in New York and Long Island homes, quartzite is often selected for its resilience.

  • Yes. Quartzite is one of the most durable natural stones available for kitchen countertops.

    It resists:

    • Scratching

    • Heat

    • Etching

    Quartzite is ideal for waterfall islands, large-format installations, and heavily used kitchens while maintaining a natural, elegant appearance.

  • Quartzite should be sealed upon installation. While highly durable, it remains a natural stone and benefits from routine care using pH-neutral cleaners.

    Proper fabrication and installation are essential to long-term performance.

Natural granite stone featuring a dark base with contrasting white mineral veining, known for its strength and durability.

Granite

  • Granite remains one of the most durable and practical natural stones available. While certain color trends may shift over time, high-quality granite continues to be used in contemporary and traditional projects alike.

    Modern granite selections feature subtle movement and refined mineral patterns suitable for luxury residential and commercial spaces.

  • Granite is highly resistant to heat and scratching, making it suitable for:

    • Busy kitchens

    • Outdoor kitchens & BBQs

    • Commercial applications

    Its durability makes it a reliable long-term surface material.

Engineered quartz surface featuring a white base and fine gray veining, known for its durability and uniform appearance.

Quartz

  • Quartz (often called engineered quartz) is a man-made surface made from natural quartz minerals combined with resins and pigments. The result is a consistent, non-porous material that’s durable, low-maintenance, and available in a wide range of colors and patterns—including marble-inspired looks.

    Quartz is a popular choice for:

    • Kitchen countertops and islands

    • Bathroom vanities

    • Laundry rooms and mudrooms

    • Commercial interiors

    Because it’s non-porous, quartz resists staining and does not require sealing.

  • Yes—quartz is one of the best options for busy kitchens because it’s:

    • Non-porous (excellent stain resistance)

    • Low-maintenance (no sealing)

    • Consistent in pattern and color (great for clean, modern designs)

    The main consideration: quartz is durable, but direct high heat (hot pans) can damage the resin binders. We recommend using trivets and avoiding placing hot cookware directly on the surface.

    • Quartz: best for low-maintenance, consistent patterns, strong stain resistance.

    • Porcelain: best for heat/UV resistance, large-format minimal seams, outdoor applications.

    • Natural stone (marble/quartzite/granite): best for one-of-one movement and natural variation; maintenance varies by stone.

    If you want a surface that looks refined and stays easy day-to-day, quartz is often the right call.

Porcelain slab surface featuring a light gray tone and minimal patterning, known for its durability and design versatility.

Porcelain

  • Porcelain slabs are engineered surfaces available in large-format panels, allowing for minimal seams and full-height wall applications.

    They are commonly used for:

    • Modern kitchens

    • Shower walls

    • Outdoor installations

  • Porcelain is non-porous, UV-resistant, and highly resistant to staining and scratching.

    It requires minimal maintenance and does not need sealing.

Start Your Project

Tell us about your space and we’ll guide you through material selection, fabrication, and installation.

 FAQs

  • A stone fabrication company transforms natural stone slabs into finished surfaces such as countertops, islands, vanities, and architectural elements. This includes cutting, polishing, finishing, and installation.

  • Intermarble is a Long Island–based stone fabrication studio specializing in custom marble, granite, quartzite, and onyx for residential and commercial projects.

  • Yes — we handle both fabrication and installation in-house, allowing for greater quality control and consistency.

  • We work with marble, granite, quartzite, onyx, travertine, and other natural stones.

  • Yes — we regularly collaborate with interior designers, architects, and builders throughout Long Island.

  • While we are based in Long Island, we also serve projects across the greater New York area.