Upgrading Your Kitchen Has Never Been Easier
Free Fabrication and Free Installation
100% Satisfaction Guaranteed
Over 25 years of experience in fabricating and installing
Over 200 Stone Colors, Over 2000 Slabs Inventory


Welcome to

Keystone Granite

Keystone Granite is one of the top marble and granite suppliers in the area. We offer residential and commercial services in Delaware, Pennsylvania, and Ohio. We have a combined experience of 25 years among our fabricators and installers.

Our materials are imported from all over the world. We are the accredited distributor for the most popular brands of engineered stone. Beauty does not have to mean expensive and painful. We offer competitive pricing and supply one stop shopping to our customers, as well as a very rapid turnaround time for installation.

Our Products

We offer widest selection of high-performance countertop surfaces.

Granite Collections

Beautiful and one of the most durable natural stones, this is one of the best materials for stone surfaces in the home and exteriors of commercial buildings.

Marble Collections

The luster and depth of true marble is incomparable to any other type of stone material, ideal for high-quality pastry tables and beautiful bathroom vanities

Quartz Collections

Another brand of engineered quartz, this has a distinctive diamond-like shimmer due to a patented process of the manufacturer.


A brand of engineered quartz containing 94% quartz, it is a popular choice for kitchen and bathroom stone because the manufacturers offer a certified warranty


This engineered stone is made of 93% quartz and shares many of the features of other engineered quartz surfaces, which makes it ideal for kitchen.


Made of about 93% natural quartz, this is a durable and stunning material that comes in a wide range of patterns and colors kitchen.

Our Clients Says

Kitchen Countertops and
Bathroom Vanity Tops

Functional, durable, and most importantly, food safe. You can get all of these features when you get your stone slabs from and installed by Keystone Granite.

Bathroom vanities do not get the same amount of use as kitchen countertops, but they are subject to almost constant humidity and various liquid spills.

Get a Free Quote

Getting a quote is made simple at Keystone Granite. Provide one of highly trained sales associates with dimensions, what type stone you would like, and by the end of the day, a quote will be provided.

Commercial Projects

We have been growing our reputation as the best product and service provider of prime quality marble and granite slabs and installation. We continue to improve our offerings to give our clients the best possible experience. Beauty does not have to mean expensive and painful. We offer competitive pricing and supply one stop shopping to our customers, as well as a very rapid turnaround time for installation.

Our Work

Request Your Free Estimate and 3D Design


We are in business since 2006. Over the decade, we have significantly improved our workmanship and have offered meticulous solutions.


Our 100% positive feedback from customers prove that we offer a customer satisfaction service.


By keeping your busy schedule in mind, a special “Quick Turnaround” service is provided by our experts.


We use environmentally friendly materials that are non-toxic; yet, clean the dirt efficiently!


We do not just offer the best services but our estimates are the least expensive that you’ll find in the area!


Our highly-trained staff is insured, licensed and bonded. All our pros are highly motivated to offer professional services.

Keystone Granite & Tile

Lancaster Showroom

Keystone Granite & Tile

Horsham Showroom

Keystone Granite & Tile

New Castle Showroom

Keystone Granite & Tile

Columbus Showroom