The cost to replace a balcony in California varies based on location, structure type, and extent of damage. On average, property owners can expect to pay between $40,000 and $60,000 per balcony, but in high-cost regions like West Hollywood and Los Angeles, that number often rises to $50,000–$60,000+ per balcony.
These costs apply to homeowners, HOAs, and apartment complexes, especially when damage involves cantilever balconies that extend into the building structure.
Water intrusion and dry rot are the leading causes of balcony failure. When the rot spreads to load-bearing joists, a full replacement is required. Minor surface damage can be repaired, but deep structural rot demands removal and reconstruction.
Wood/LVL/Glulam beams: Lower cost, but must be properly sealed and waterproofed.
Steel or composite systems: More durable but higher material cost.
Labor rates in urban areas like West Hollywood and Santa Monica can also add 20–30% to project totals.
High balconies or tight job sites may require scaffolding or lifts, adding several thousand dollars in labor setup.
For major structural work, permits typically range from $900–$15,000, and engineering design plans can cost $15,000–$28,000.
Installing a proper waterproofing membrane is essential. Cutting corners here leads to premature failure and costly repairs later.
In a recent project, Bay Cities Construction rebuilt multiple balconies for a West Hollywood apartment complex.
Each balcony cost between $50,000 and $60,000 including waterproofing, new handrails, and sliding doors. The work involved deep rot removal, scaffolding, and compliance with SB-326 and SB-721 inspection requirements.
Read the full West Hollywood project breakdown →
If your balcony shows signs of:
Cracked surfaces or soft spots underfoot
Leaks or water damage on ceilings below
Rusted or loose railings
Visible wood rot
You should have a licensed contractor inspect it. Early detection can save tens of thousands in repairs.
Bay Cities Construction specializes in balcony repair, waterproofing, and full replacements throughout Los Angeles, South Bay, and Orange County.
Our team handles the engineering, permits, and reconstruction process from start to finish, keeping you compliant with California’s latest safety regulations.