CSI Home2019-02-19T16:51:13+00:00

About Us

Our mission is to be the countertop fabricator of choice in Central Pennsylvania. We fabricate and install the highest-quality stone, quartz and composite materials of a vast selection while striving to surpass our clients expectations.

Read More


Read More

Join The Distribution Network

Join us! Partner with CSI to serve your clients as your exclusive countertop fabricator. CSI is searching for professional and ethical Kitchen and Bath professionals, Cabinet Manufacturers and Home Builders/Remodelers in Pennsylvania who are searching for a professional countertop fabricator.

Read More

The Custom Stone Interiors Catalog

View Our Selection of :

CSI Quartz Brands

View All


“I would recommend CSI to all or my family, friends and clients. They are friendly and professional. They cleaned up after themselves and performed my countertop installation quick and promptly.”
The Riley's, State College, PA
What did you like most about dealing with CSI?

“Ownership involvement with sales and installation. Everyone was very professional and Peg was great to work with. Hats off to CSI! You’re great-love our kitchen!!”

Sam and Karen Sleek , State College, PA
What did you like most about dealing with us at Custom Stone Interiors?

“Price, Professional and Courteous, Attention to detail are all reasons why I will recommend CSI.”

Becky McKinstry, State College, PA
“We really like our countertop. Thank you! I’m sorry it took me so long to make a choice. We are really happy and will refer you to everyone we know!”
Ryan and Dianna Kennedy, State College, PA
What did you like most about dealing with us at Custom Stone Interiors?

“Product knowledge, Friendliness, very accommodative at installation time. Totally impressed about your service. The countertop looks beautiful. You can count on us for testimonials.”

Tony and Silvana Ricciardi , Bellefonte, PA
“Why I am happy with CSI.

*Representatives were friendly and personable.
*Took time to explain installation.
*Reviewed Warranty thoroughly.
*Initial measurements were careful and accurate.
*Installation was perfect; work area cleaned upon completion of installation.”

Carol Reardon, State College, PA
“Your whole staff are awesome! I love my new counter. Your patience and kindness while I made up my mind was appreciated so much. And the whole process from beginning to end-gave me a beautiful counter I’ll enjoy for many years to come-knowing full well if my experience and interaction with your staff had been negative it might have diminished the beauty and joy I have every time I see and or work about my counter. THANK YOU for a JOB WELL DONE!!! I wish you all prosperous years to come.”
Victoria Witherite, PA Furnace, PA
Your Customer Service was excellent. It was a pleasure working with your staff.”
Katherine Garman, State College, PA
“Hi Peg. Please let Jon and Jake know how much I love the countertops!! It is dramatic and beautiful. Thank you for expediting the process. The boys and I were growing weary of in-house camping. I am very pleased and love the kitchen and bath selections. Thank you all!!”
Ann Etter, State College, PA
“We were 100% satisfied with: help in the selection process, selection in showroom, the installers did a great job and gave helpful maintenance instruction. We shopped around a great deal and were most satisfied with your company. Thank a lot and we would refer you to anyone.”
Robert and Lois Voigt , State College, PA
“How wonderful it was to come home to our gorgeous new countertops this weekend. We absolutely love it.

We can’t thank you enough for helping us through the process. We are very impressed with the work – we love the tight fit of the counter and backsplashes and undermount sink.

Most of all we thank you for everything you did above and beyond how quickly you turned around our project; how easy it was to work with you and all of the updates and communication we received; for helping our guys drill holes for our bathtub faucets.

This has been a wonderful experience from start to finish. I plan to recommend you to everyone redoing kitchen and bath countertops.”

Greg and Meghan Hayes, State College, PA
“I have to tell you that you and your employees were great to work with. They were very professional and efficient. I’ll make sure to pass the word!”
Linda Agostinelli, State College, PA
“CSI was very easy to work with and especially accommodating (because we wanted to leave town the day before proposed installation). The crew was also very careful about working in the house and kitchen, trying to keep dust, etc. to a minimum. My friends, who have been to see my new countertop, really like it and I would recommend CSI to anyone. Thanks you!!
Candy Zimmerman, State College, PA
“Guys that did the work were professional and courteous. Answered all our questions. Very pleased with the work!”
Craig and Denise Bitner, State College, PA