Coolstone Concrete Design

Coolstone Concrete Design has worked on over 250,000 square feet of concrete surfaces since 2006, serving residential and commercial clients with polished concrete, epoxy coatings, concrete grinding and sealing, and stained concrete finishes.

Their process emphasizes sustainability: polishing existing concrete slabs requires no new materials and produces zero waste, lowering carbon footprint. Finishes are low-VOC, applied with a dust-free process, and reflect light naturally to save energy. Completed floors are designed to remain beautiful for decades.

In California, concrete contractors fall under specialty license classification C-8 according to the Contractors State License Board (CSLB). Before you hire, verify that any contractor you consider holds a current license by checking the CSLB online database at cslb.ca.gov.

Concrete work often requires a building permit. The California Building Standards Code requires a separate permit for construction, alteration, repair, or improvement of structures and surfaces. Check with your local building department—in Los Angeles, contact the Department of Building and Safety—to confirm whether your project needs a permit. Permit requirements vary by project scope and location within the city.

When selecting a concrete contractor, ask whether they will handle permitting and grading, understand their finish options, and discuss your project timeline and curing requirements. Always review the contract terms, scope of work, and any warranty details before signing.