Business Details
18 Years
experience
Expert Stone Restoration Services in San Francisco
Stone Improvement is the premier stone restoration and maintenance company serving the Bay Area. Founded in 2008 by John and Nick, we specialize in natural stone, tile, and grout restoration using innovative, eco-friendly methods. Our team of certified technicians adheres to Marble Institute of America standards, avoiding chemical polishing practices in favor of diamond abrasive techniques that preserve stone integrity.We guarantee customer satisfaction through transparent communication, personalized maintenance advice, and the provision of free pH-neutral cleaners. With over 15 years of combined experience, we serve residential and commercial clients across San Francisco, Oakland, and surrounding California regions.
Services
Marble Polishing
Sealant Application
Tile Cleaning
Concrete Refinishing
Sealant Removal
Grout Sealing
Terrazzo Restoration
Limestone Repair
Stain Removal
Caulking Services
Details
- Year established: 2008
Highlights and features
- We offer MIA-certified, chemical-free restoration techniques for natural stone.
- Our team provides personalized maintenance advice for long-term surface care.
- We guarantee satisfaction with transparent pricing and free pH-neutral cleaners.
- Certified technicians with 15+ years of combined experience in stone restoration.
- Serving Bay Area residential and commercial clients since 2008.
Associations and certifications
- Marble Institute of America
What people say
Highest recommendation
Exceeded expectations
Professional and courteous
Saved money from replacement
Miracle happened
Services
Marble Polishing
Our marble polishing service removes etching, scratches, and stains using diamond abrasives. We restore floors, countertops, and showers to their original sheen without chemical sealants. Clients receive free pH-neutral cleaners for ongoing maintenance.
Sealant Application
We apply low-VOC penetrating and topical sealers to protect stone surfaces. Our breathable sealants resist stains and moisture while preserving natural aesthetics. Options include color-enhancing formulas for grout and tile.
Tile and Grout Cleaning
High-pressure extraction removes dirt, mold, and soap scum from tile and grout. We use eco-friendly cleaners and provide maintenance guidance to extend cleanliness. Services cover residential and commercial properties.
Concrete Refinishing
Concrete refinishing involves stripping old sealants and applying durable coatings. We use soy-based gels for epoxy removal and water-based sealers for long-lasting protection against stains and weathering.
Sealant Removal
We safely remove acrylic, epoxy, and wax sealants using low-VOC strippers. The process includes residue extraction and surface preparation for resealing, ensuring no damage to underlying materials.
People
John
Owner
Co-founder with a fine arts degree from Long Beach State University. Combines artistic precision with stone restoration expertise, specializing in complex stain removal and surface polishing.
Nick
Co-Owner
Co-founder and client liaison with extensive experience in stone diagnostics. Known for transparent communication and problem-solving skills in high-end residential projects.
Questions
What stone surfaces do you service?
We restore marble, limestone, granite, travertine, terrazzo, concrete, and saltillo tile for residential and commercial clients across the Bay Area.
Do you offer eco-friendly solutions?
Yes. We use low-VOC sealers, water-based coatings, and chemical-free polishing methods that meet environmental safety standards.
How long does the polishing process take?
Most projects complete in one day. Larger commercial jobs may require additional time, with transparent timelines provided during consultation.
Can you fix deep stains in marble?
Yes. Our diamond abrasive techniques and specialized sealants effectively remove etching, water marks, and organic stains without damaging surfaces.
Do you service both residential and commercial properties?
Yes. We handle projects ranging from luxury high-rise bathrooms to commercial lobbies and exterior terrazzo staircases.
What guarantees do you offer?
We provide a 100% satisfaction guarantee, including free maintenance cleaners and follow-up visits to address any post-service concerns.
