Email: [email protected] Exterior Systems Construction is a Los Angeles exterior contractor specializing in roofing, waterproofing, water intrusion testing, balcony and stair repairs, drainage solutions, stucco services, roof coatings, and HOA/property management support. The company emphasizes a “diagnose before we repair” process, helping clients avoid unnecessary work by identifying the actual source of leaks, moisture intrusion, and exterior system failures. It serves homeowners, HOAs, multi-unit propertie... read full review »