Onyx Stone Restoration NYC & Long Island
Bring Back That Translucent Glow You Paid For
Your onyx looked breathtaking when it was installed. Now it’s etched, dull, or scratched—and every time you see it, you’re reminded of what you’re not getting. We restore onyx countertops, floors, walls, and backlit features across NYC & Long Island using stone-specific techniques that actually work.
Calcite-Specific Restoration Techniques
Onyx requires pH-neutral products and specialized polishing methods different from marble or granite. We use techniques designed specifically for translucent calcite stone.
Decade of NYC Experience
Serving Manhattan, Brooklyn, Queens, Nassau County, and Suffolk County with expertise in what local conditions and climate do to luxury stone.
Commercial-Grade Equipment
Professional restoration tools deliver results impossible with consumer products. We remove damage and restore finish, not just clean the surface.
Complete Repair Capabilities
From etching removal and chip repair to achieving glass-like polish or perfect matte hone, we handle every aspect of onyx restoration.
Professional Onyx Repair NYC & Long Island
Onyx Isn't Marble. It's Not Granite. It's Different.
Onyx is softer, more porous, and more reactive than almost any other stone in your home. It etches from a splash of lemon juice. Scratches appear from regular use. Stains set in if you don’t blot spills immediately. That’s not a flaw—it’s the nature of calcite-based translucent stone.
Most stone companies treat everything the same way. That’s how onyx gets damaged worse instead of better. We specialize in onyx surface restoration across NYC & Long Island because this stone demands different products, different techniques, and actual understanding of what you’re working with.
Whether it’s onyx countertop repair in Manhattan, onyx floor restoration in Nassau County, or bringing back the glow to backlit features in Suffolk County, we’ve done it. And we know what it takes to make it last.
Most stone companies treat everything the same way. That’s how onyx gets damaged worse instead of better. We specialize in onyx surface restoration across NYC & Long Island because this stone demands different products, different techniques, and actual understanding of what you’re working with.
Whether it’s onyx countertop repair in Manhattan, onyx floor restoration in Nassau County, or bringing back the glow to backlit features in Suffolk County, we’ve done it. And we know what it takes to make it last.
Onyx Polishing Service NYC & Long Island
What You Get When It's Done Right
Professional onyx restoration doesn't just clean your stone. It reverses damage, protects against future problems, and brings back the finish that made you choose onyx in the first place.
Etching and dull spots disappear—we hone out acid damage and restore even finish across the entire surface.
The translucent glow comes back, especially critical if you have backlit onyx walls, countertops, or feature installations.
Scratches get polished out using diamond abrasives calibrated specifically for onyx’s softness and structure.
Stains lift out with professional-grade removal techniques that don’t damage the stone or leave residue behind.
Chips and cracks get repaired with color-matched materials, restoring both appearance and structural integrity.
Proper sealing protects against future etching and staining, buying you time to clean up spills before they become permanent.
Onyx Floor Restoration NYC & Long Island
Why Onyx Floors Need Different Treatment
Onyx floors take more abuse than countertops. Foot traffic creates wear patterns. Grit gets tracked in and scratches the surface. Spills sit longer because you don’t always see them right away. And because onyx rates only 3 on the Mohs hardness scale—softer than marble, much softer than granite—the damage accumulates faster than you’d expect.
Standard floor cleaning makes it worse. Acidic cleaners etch the surface. Abrasive pads scratch it. Generic stone sealers either don’t penetrate properly or leave a film that dulls the finish.
We restore onyx floors across NYC & Long Island using honing and polishing techniques specific to translucent calcite stone. That means removing existing damage without creating new scratches, achieving the exact finish you want—high gloss, honed, or matte—and sealing it properly so it stays protected. The result is a floor that looks like it was just installed, with a finish that holds up to real use.
Standard floor cleaning makes it worse. Acidic cleaners etch the surface. Abrasive pads scratch it. Generic stone sealers either don’t penetrate properly or leave a film that dulls the finish.
We restore onyx floors across NYC & Long Island using honing and polishing techniques specific to translucent calcite stone. That means removing existing damage without creating new scratches, achieving the exact finish you want—high gloss, honed, or matte—and sealing it properly so it stays protected. The result is a floor that looks like it was just installed, with a finish that holds up to real use.
Onyx Countertop Repair NYC & Long Island
What's Included in Professional Onyx Restoration
When we restore onyx countertops, floors, or walls, you’re getting a complete transformation—not surface cleaning. We start with a full assessment of your stone’s condition, damage level, and current finish. Then we map out exactly what needs to happen.
Deep cleaning removes built-up residue, oils, and contaminants using pH-neutral solutions that won’t etch the surface. Etching removal involves honing with progressively finer diamond abrasives to eliminate acid damage and dull spots. Scratch repair uses the same calibrated process to bring the surface back to smooth.
Stain removal targets oil, wine, coffee, and organic stains that have penetrated the porous structure. Chip and crack repair stabilizes damage and restores appearance with color-matched fill materials. Polishing brings back the glass-like finish or achieves your preferred honed or matte look. Sealing protects the restored surface and makes future maintenance easier.
You get onyx that looks the way it should—and guidance on how to keep it that way.
Deep cleaning removes built-up residue, oils, and contaminants using pH-neutral solutions that won’t etch the surface. Etching removal involves honing with progressively finer diamond abrasives to eliminate acid damage and dull spots. Scratch repair uses the same calibrated process to bring the surface back to smooth.
Stain removal targets oil, wine, coffee, and organic stains that have penetrated the porous structure. Chip and crack repair stabilizes damage and restores appearance with color-matched fill materials. Polishing brings back the glass-like finish or achieves your preferred honed or matte look. Sealing protects the restored surface and makes future maintenance easier.
You get onyx that looks the way it should—and guidance on how to keep it that way.
Onyx Surface Restoration Process NYC
How We Restore Onyx From Damaged to Flawless
01
Assessment and Planning
We evaluate your onyx’s stone type, damage level, current finish, and determine the exact restoration approach needed for lasting results.
02
Restoration and Repair
Deep cleaning, etching removal, scratch repair, stain treatment, and polishing using stone-specific techniques and commercial-grade equipment designed for onyx.
03
Protection and Guidance
Proper sealing with penetrating products, final inspection to ensure quality, and maintenance recommendations so your onyx stays beautiful.
Frequently Asked Questions
Find answers to common questions about our services, process, and how we work.
Can etched onyx countertops be restored, or do they need replacement?
Etched onyx can absolutely be restored without replacement. Etching happens when acidic substances like lemon juice, wine, or vinegar react with the calcite in onyx, leaving dull spots or rough patches. We remove etching through a controlled honing process using progressively finer diamond abrasives calibrated specifically for onyx’s softness. This removes the damaged layer and brings the surface back to smooth. Then we polish it to your desired finish—high gloss, semi-gloss, or matte. The key is using the right technique for calcite-based stone. What works for granite or even marble can make onyx worse. Professional restoration costs a fraction of replacement and delivers results that last when followed up with proper sealing and maintenance.
How often does onyx need to be sealed in NYC & Long Island?
Onyx should be sealed every 6 to 12 months depending on use and location. High-traffic areas like kitchen countertops or commercial installations need sealing closer to every 6 months. Lower-use surfaces like bathroom vanities or decorative walls can go closer to 12 months. The timeline also depends on the quality of the sealer used and how well the surface is maintained between sealings. Sealing isn’t optional with onyx—it’s porous and stains rapidly without protection. A proper penetrating sealer buys you time to wipe up spills before they become permanent stains or etch marks. We use sealers formulated specifically for calcite-based translucent stone, and we’ll recommend the right schedule based on your specific installation and how you use the space.
Why does my onyx look dull even after I clean it regularly?
Dullness on onyx usually means the surface has been etched or worn down, and cleaning won’t fix that. Etching happens from acid exposure—even brief contact with citrus, wine, vinegar, or acidic cleaners damages the polished surface at a microscopic level. Over time, these dull spots accumulate. Wear patterns develop in high-use areas from friction and abrasion. Regular cleaning removes dirt, but it doesn’t restore the finish. You need professional honing and polishing to remove the damaged layer and bring back the original luster. Another common cause is using the wrong cleaning products. Many household cleaners, even ones labeled for stone, are too acidic or abrasive for onyx. They gradually dull the finish every time you use them. Switching to pH-neutral stone-safe cleaners helps, but if the damage is already there, restoration is the only fix.
Can you restore backlit onyx without damaging the translucency?
Yes, we restore backlit onyx regularly across NYC & Long Island, and the translucency is actually enhanced when done correctly. Backlit onyx installations depend on light passing through the stone evenly, so any surface damage—etching, scratches, dullness—disrupts that effect. Professional restoration removes surface damage without changing the stone’s internal structure or thickness in a way that affects light transmission. We use polishing techniques that restore clarity and smoothness, which actually improves how light moves through the stone. The result is more even illumination and more vibrant color when the backlighting is on. The key is understanding how thin onyx slabs are in backlit applications—usually 2cm to 3cm—and using the right pressure and abrasives so you’re restoring the surface without compromising structural integrity. This is specialized work that requires experience with translucent stone.
What's the difference between honing and polishing onyx?
Honing and polishing are both surface finishing techniques, but they create different looks and serve different purposes. Honing uses abrasives to create a smooth, matte, or low-sheen finish. It removes scratches, etching, and wear patterns but stops before achieving high gloss. Honed onyx has a softer, more natural appearance—some people prefer it because it hides minor imperfections better and feels less formal. Polishing takes the process further, using finer abrasives and polishing powders to create a glass-like, reflective finish. Polished onyx is what most people picture—high shine, vibrant color, and maximum translucency. It’s also easier to clean because the smooth surface resists staining better. Which finish you choose depends on your aesthetic preference and how the space is used. We can deliver either finish, or anything in between, and we’ll walk you through what makes sense for your specific onyx installation.
Is onyx too delicate for kitchen countertops in NYC homes?
Onyx is more delicate than granite or quartz, but it can work in kitchens if you understand what you’re committing to. It will etch from acidic foods and drinks. It will scratch more easily than harder stones. It needs regular sealing and careful maintenance. That said, many NYC homeowners have onyx kitchen countertops and love them—they just treat them differently. Use cutting boards always. Wipe up spills immediately, especially anything acidic. Use pH-neutral cleaners only. Avoid placing hot pots directly on the surface. Have it professionally sealed every 6 to 12 months. If you’re willing to do that, onyx delivers a visual impact no other stone can match, especially in backlit installations or statement islands. If you want low-maintenance, granite or quartzite makes more sense. But if you value the aesthetic and are realistic about the care required, onyx is absolutely usable. We restore plenty of kitchen onyx across NYC & Long Island, and when maintained properly, it holds up better than people expect.
100 Park Ave.
New York, NY 10017
Opening Hours
Monday: 8:00am – 5:00pm
Tuesday: 8:00am – 5:00pm
Wednesday: 8:00am – 5:00pm
Thursday: 8:00am – 5:00pm
Friday: 8:00am – 5:00pm
Tuesday: 8:00am – 5:00pm
Wednesday: 8:00am – 5:00pm
Thursday: 8:00am – 5:00pm
Friday: 8:00am – 5:00pm
