Top Rated Waterproofing Contractors Serving Los Angeles County, CA

Last Updated May 15, 2026

801 Review Ratings and 2 Waterproofing Companies Evaluated.

These companies have passed our Preliminary 5-step rating process.

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Each listed company below has passed our 5-step Preliminary rating process but has not yet completed and our Diamond Certified Rating Process.

Capital Deck & Stair Waterproofing

Capital Deck & Stair Waterproofing offers a variety of waterproofing services to residential and commercial clients throughout Los Angeles County. The company has the training and equipment to handle everything from basement waterproofing and basement sealing to balcony waterproofing and foundation crack sealing, and its employees focus on delivering first-rate workmanship on every project.

Services

Waterproofing including basement waterproofing, foundation waterproofing, deck waterproofing, waterproof caulking, basement drainage, roof decks, pool decks, walking decks, leisure decks, iron-based precast stairs, crack repair, leak detection and repair, membrane waterproofing installation, waterproof coatings, caulking services, curtain wall glazing, decks, patios, balconies, stairs, walkways and verandas.

Coverage Areas

The Los Angeles Area, including Los Angeles County—key cities including Lakewood, Los Angeles, Hawaiian Gardens, Lomita, Acton, Lake Hughes, Lancaster, Altadena, Arcadia, Duarte, La Canada Flintridge, South Pasadena, Paramount, San Pedro, Wilmington, Carson, Signal Hill, Malibu, Redondo Beach, Rancho Palos Verdes, Palos Verdes Peninsula, Pacific Palisades and Maywood.

company logo
Philip Bromberg
President
License: 1005325
location
  • 16000 Ventura Blvd Ste 1103
  • Encino, CA 91436

Ocean Seven Builders

Services

Roofing, Waterproofing, Insulation Installation

Coverage Areas

Van Nuys Area, Agua Dulce Area

company logo
Ron M
Owner
License: 1001419
location
  • 15155 Stagg St Unit 2 Van Nuys, CA 91405

These companies have earned our Pre-Qualified Rating. Learn more about our 5-step process.

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