Luxury marble kitchen backsplash and countertops by Intermarble, custom stone fabrication and installation in Long Island, New York.

Custom Stone Fabrication in Long Island

We specialize in custom marble, granite, quartzite, and onyx fabrication, guiding each project from material selection through installation.

Based in Long Island, New York, with over 40 years of hands-on craftsmanship, we collaborate with homeowners, designers, and builders across the greater New York region.

Request a Quote

Stone Fabrication & Installation Services

Intermarble provides full-service stone fabrication and installation, managing every stage of the process in-house.

We specialize in:

  • Custom stone fabrication for kitchens, bathrooms, vanities, islands, fireplaces, and architectural features

  • Cutting, edging, polishing, and finishing

  • Fabrication of marble, granite, quartzite, onyx, travertine, and porcelain

  • Slab sourcing and material guidance

  • Residential and commercial stone installation

  • Collaboration with designers, architects, and contractors

Residential marble fireplace surround, custom fabricated and installed by Intermarble in Long Island, NY.

Decades of Stone Craftsmanship

Intermarble is a family-run stone fabrication rooted in over 40 years of experience working with natural stone.

Based in Long Island, we combine traditional stoneworking techniques with modern fabrication processes to deliver precise, durable, and thoughtfully finished surfaces. Every slab is handled with care — from selection and cutting to polishing and installation — ensuring consistency and quality at every stage.

Our in-house approach allows us to maintain full control over craftsmanship, timelines, and execution.

Custom floating vanity fabricated from Cielo marble by Intermarble for a powder room in Great Neck, New York.

Custom floating powder room vanity fabricated from Cielo marble by Intermarble for a residence in Great Neck, New York.

View More Work

Materials We Work With

We work with a curated selection of natural and engineered stone materials, each chosen for its distinct characteristics, performance, and aesthetic qualities. Our team guides clients through material selection to ensure the right fit for each project.

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

Marble

  • Marble is a classic natural stone prized for its veining, softness, and refined appearance. Each slab is unique, making marble a timeless choice for architectural surfaces, sculptural elements, and custom interiors.

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

Onyx

  • Onyx is prized for its translucency and dramatic veining, making it ideal for statement installations and backlit applications.

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

Quartzite

  • Quartzite is a dense, durable natural stone formed from sandstone and quartz. Valued for its strength and subtle movement, it offers the look of marble with enhanced durability for high-use surfaces.

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

Granite

  • Granite is a highly durable natural stone recognized for its strength and resistance to wear. Its crystalline structure and wide range of colors make it a reliable option for both residential and commercial applications.

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

Quartz

  • Quartz is an engineered stone made from natural quartz and resins, offering consistent patterning and low maintenance. It is commonly selected for modern interiors requiring uniformity and durability.

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

Porcelain

  • Porcelain slabs are manufactured surfaces known for their durability, thin profile, and design versatility. Resistant to heat, stains, and UV exposure, porcelain is well suited for both interior and exterior applications.

We fabricate stone for a wide range of residential and commercial applications, including:

  • Kitchen countertops and islands

  • Bathroom vanities and surfaces

  • Fireplaces and feature walls

  • Commercial interiors

  • Custom architectural stone elements

Stone Projects We Fabricate

Residential kitchen featuring a custom marble island and matching marble backsplash, highlighting detailed stone fabrication and installation.

Custom marble island and backsplash fabricated and installed as part of a residential kitchen renovation.

Start Your Stone Project
  • Close-up of textured rock surface with wavy patterns and varied shades of gray, brown, and cream.

    "I only have good things to say about my experience with Intermarble. They have created countertops for me on three different occasions over the past 10 years and each time I have been extremely satisfied."

    Florence G.

  • White marble texture with gray veining

    "Just finished our third project with Intermarble - here in town. It was a pleasure to work with them. Roberto is a craftsman and cares about the quality of his work. Every detail - seams - corners - perfect. They do great work."

    Patricia B.

  • Large marble quarry with a yellow excavator at the base, surrounded by steep marble cliffs and debris.

    "Couldn’t be happier or more satisfied with Roberto and Jessica’s professionalism. The countertops are nothing short of a piece of art."

    Dan G.

  • Close-up of a textured marble surface with natural veins and patterns.

    "Intermarble fabricated and installed the new granite countertops for our newly constructed outdoor kitchen. This is a true family business and a local business to boot... We give Intermarble our highest recommendation. Much love."

    Joseph D.

 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.