Commercial Magnesite Deck Repairs & Restoration
Restore, Reinforce, and Comply
Magnesite decking is a durable but aging waterproofing system often found in older apartment buildings and commercial properties. Over time, cracks, spalling, and moisture intrusion can compromise its safety and appearance. WC Decking & Waterproofing specializes in expert magnesite deck repairs that extend the life of your surfaces and meet California safety codes.
What Is Magnesite and Why It Needs Professional Repair
Magnesite is a cementitious, fire-resistant coating traditionally used for stairways, balconies, and walkways—particularly in mid-century and multifamily buildings. While it's strong, it becomes brittle over time and is vulnerable to moisture if not properly maintained.
Our magnesite repair services include:
Thorough inspection of cracks, delamination, and rust
Removal of damaged or loose magnesite layers
Substrate cleaning and re-priming
Reapplication of new magnesite coating
Textured or decorative resurfacing as needed
Optional sealing with waterproof membranes for added protection
Final inspection to ensure SB-326/SB-721 compliance
We repair magnesite decks over plywood or concrete in both exterior and elevated areas.
Benefits of Repairing Magnesite Decks
Restores Structural Integrity & Safety
Prevents accidents and reduces liability by eliminating trip hazards and soft spots.
Cost-Effective Alternative to Full Replacement
Targeted magnesite repairs extend the system's lifespan without full demo.
Improves Appearance
Freshly resurfaced magnesite decks look clean, modern, and well-maintained.
Prepares Property for Safety Inspections
Repairs help meet SB-326 and SB-721 requirements for multi-family buildings.
Adds Waterproofing Protection
Option to add a modern membrane system for additional water resistance.
Ideal for Repairs On:
Staircases & Landings
Walkways in Multi-Unit Complexes
Apartment & Condo Balconies
Apartment & Condo Balconies
California Safety Code Compliance
Our magnesite repair services help property owners and HOAs meet the strict requirements of SB-326 and SB-721, which mandate regular inspections and repairs of elevated exterior elements in multifamily buildings.
We ensure your repairs not only restore function and appearance but also satisfy legal obligations, protecting you from liability and potential fines.
Restore Your Magnesite Decks Today
Schedule a professional inspection and get expert recommendations for your commercial property
Serving Commercial Properties Throughout Southern California
Professional magnesite repair services throughout Southern California
Orange County
Newport Beach, Irvine, Anaheim & More
Los Angeles County
Santa Monica, Beverly Hills, Pasadena & More
Riverside County
Corona, Riverside, Murrieta & More
Ventura County
Thousand Oaks, Ventura, Oxnard & More