Exceptional restoration is more than the finished surface. It is a clear, professional experience from the first walkthrough through final completion.
We have built a proven process to protect your property, eliminate surprises and make every step of your restoration clear.
We start by listening.
Every successful restoration begins with understanding the property, the material and what you are hoping to accomplish.
Clear scope. Clear expectations.
After the walkthrough, our team develops a customized proposal based on what we discovered.
Your project moves forward when you are ready.
Once you decide to move forward, approve your proposal and submit the required deposit so your project can move toward scheduling.
We make sure the scope is approved before work begins so expectations are clear from the start.
We coordinate the details.
Once your approval and deposit are complete, your project moves to our scheduling team.
Your property comes first.
Before work begins, we document existing conditions and protect surrounding areas using professional site-protection practices appropriate to your project.
Skilled work. Documented progress.
Our craftsmen focus on quality, cleanliness, communication and attention to detail throughout your project.
We document the project with before, during and after photography. If something unexpected is discovered, we communicate with you rather than simply changing the scope.
We do not call it finished until we have checked it.
At completion, we perform our quality-control process and final walkthrough.
Protect your investment.
After your project, we provide appropriate care recommendations and remain available for future restoration and maintenance needs.
For surfaces that benefit from ongoing care, we can help establish a recurring maintenance schedule designed to protect your investment.
Start with a professional assessment. Our team will evaluate your surfaces, discuss your goals and recommend the appropriate next steps for your property.
Request an Assessment
Natural stone stays beautiful, durable, and protected when it’s cared for consistently. Our Residential StoneCare Maintenance Program gives homeowners and estate teams a predictable, scheduled approach to preserving surfaces year-round.
Routine maintenance prevents staining, dulling, and moisture absorption. Seasonal care protects exterior stone from freeze–thaw cycles, UV oxidation, salt water, and other environmental pressures. Priority scheduling keeps your home ahead of seasonal demand.
Why Ongoing Residential Maintenance Matters:
Monthly, quarterly, or seasonal care
Protection from long-term wear
Environmental protection from freeze–thaw, UV, salt water, and weather exposure
Priority access during high-demand periods
Preferred pricing on additional restoration work
A team familiar with your property’s unique materials
No hidden visits or surprise charges
Membership Tiers
Tier One
For luxury homes needing consistent, preventative upkeep.
Includes
Tier Two — Premium
For historic homes, multi-building residences, estates, and properties requiring a higher level of support.
Includes
On-Site Service
Scope of Care
Indoor
Outdoor
Materials
Cornerstone stands out as the premier choice for stone restoration, installation, and repair in Long Island, NY. We believe our unwavering commitment to excellence shines through in every project. Here's what sets us apart:
1
Knowledge
We Are Experts In Stone
With over 20 years in the industry, our certified technicians have the knowledge and experience to handle all types of stone restoration projects.
2
Experience
Serving The New York Area & Beyond
We proudly offer our stone restoration services in:
• Long Island
• Manhattan
• The Hamptons
• Greenwich, CT
• Nassau North Shore
3
Quality
Trusted For Quality Stone Services
We build lasting relationships through transparent communication, reliable service, and a commitment to exceeding client expectations.
Exceptional restoration is more than the finished surface. It is a clear, professional experience from the first walkthrough through final completion.
We have built a proven process to protect your property, eliminate surprises and make every step of your restoration clear.
We start by listening.
Every successful restoration begins with understanding the property, the material and what you are hoping to accomplish.
Clear scope. Clear expectations.
After the walkthrough, our team develops a customized proposal based on what we discovered.
Your project moves forward when you are ready.
Once you decide to move forward, approve your proposal and submit the required deposit so your project can move toward scheduling.
We make sure the scope is approved before work begins so expectations are clear from the start.
We coordinate the details.
Once your approval and deposit are complete, your project moves to our scheduling team.
Your property comes first.
Before work begins, we document existing conditions and protect surrounding areas using professional site-protection practices appropriate to your project.
Skilled work. Documented progress.
Our craftsmen focus on quality, cleanliness, communication and attention to detail throughout your project.
We document the project with before, during and after photography. If something unexpected is discovered, we communicate with you rather than simply changing the scope.
We do not call it finished until we have checked it.
At completion, we perform our quality-control process and final walkthrough.
Protect your investment.
After your project, we provide appropriate care recommendations and remain available for future restoration and maintenance needs.
For surfaces that benefit from ongoing care, we can help establish a recurring maintenance schedule designed to protect your investment.
Start with a professional assessment. Our team will evaluate your surfaces, discuss your goals and recommend the appropriate next steps for your property.
Request an Assessment
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