About Us

Our promise

As the premier stone restoration and maintenance company serving the Bay Area, we strive  to provide the highest level of service, products and consultation to our customers. Stone Improvement seeks to provide a seamless approach to resolving whatever stone maintenance or restoration projects you may require. We are licensed, insured, and bonded.

Customer satisfaction guaranteed

Using natural stone is a significant investment in any property-residential or commercial. Making sure your investment retains its natural beauty and value for a lifetime is a responsibility we take seriously. Dirt, grime, stains, etching, hard water stains, and sealant breakdown can all contribute to the degeneration of a stones surface. Stone Improvement can restore your stone surfaces to like new condition.

Important notice to our customers

Stone Improvement does NOT implement chemical polishing practices known as “crystallization” which can prevent the stone from breathing. Stone Improvement uses only truly natural and proven methods recognized by the MIA (Marble Institute of America) that are designed to reproduce a finished look as close to the original factory finish as possible. Our preferred method insures you will have a more natural looking stone and will require less professional maintenance if cared for properly. We always leave our customers with a free ph neutral cleaner concentrate to ensure proper maintenance.

3 reasons to choose Stone Improvement

1. Education and advice- We offer depth of expertise, and we take time to advise you about caring for your marble, limestone, or other natural stone surface. With proper care, your natural stone will enhance your property for generations!

2. Professional, highly trained stone technicians- We clean, polish, repair, remove stains, and maintain marble, granite, travertine, terrazzo, limestone, and all other natural stone surfaces for residential and commercial properties. We take pride in providing outstanding customer service.

3. High quality, time tested restoration techniques-  Like the stone masters of Europe, we use diamond abrasives to restore and polish your stone surfaces. This proven technique increases clarity and reflectivity, without chemicals. We use only truly natural methods recognized by the Marble Institute of America. These time tested methods ensure a more natural looking stone, which actually requires less maintenance when cared for properly.


Stone Improvement was founded in 2008 by John and Nick in San Francisco, California. They trained and became certified in stone and tile restoration in Arizona with one of the leading innovators in the field. John became full owner of Stone Improvement in 2015. John has a fine arts degree in drawing and painting from Long Beach State University. He continues to paint in his spare time and participates in various art shows in the Bay Area. John applies this attention to detail to his stone restoration projects.