About Company

Capital Deck & Stair Waterproofing is a family-owned and operated company based in Los Angeles, serving both Los Angeles and Orange Counties with over 30 years of expertise in waterproofing solutions. The company specializes in a wide range of services including deck and balcony waterproofing, fiberglass and magnesite stair installation, pool deck and patio protection, concrete sealing, and commercial waterproofing. Dedicated to preventing water damage and extending the lifespan of residential and commercial properties, Capital Deck & Stair uses high-quality sealants, UV-resistant coatings, and advanced waterproofing systems, while offering warranties of up to 8 years. With a strong reputation for professionalism, reliability, and exceptional customer service, the company has become one of the most trusted local contractors in the region. By combining craftsmanship with innovative protective solutions, Capital Deck & Stair helps clients safeguard their homes and businesses against costly damage while enhancing the safety and longevity of their structures.

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