• Your Deck & Stair

    Waterproofing Specialists

    Serving Southern California for 30+ Years

    About Us
  • One of the Largest Installers

    of Magnesite Flooring

    Get Maximum Waterproofing with a Contemporary, Upscale Look

    Find Out More
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    Estimate Today

    Our Licensed, Highly Trained Professionals Can Come to You

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Los Angeles Deck & Stair Waterproofing

At Capital Deck and Stair, our specialists apply waterproof coatings to decks, balconies, walkways, staircases, and pool decks throughout Southern California. We provide cost-effective, low maintenance, and durable results that give your home or rental property an upscale, contemporary look. Our licensed professionals and certified installers produce high-quality work and prioritize keeping the job site clean throughout the process. Our family-run business is known for professional, courteous, and dependable service.

Backed by 30+ years of industry experience, we guarantee all our work. Our highly trained waterproofing experts can even travel out to you to provide a free estimate. When you call our L.A. deck and stair waterproofing company, you will get an owner on the phone, and without having to go through directories.

Call (310) 912-7737 or use our online form to request your FREE estimate. We can provide service on the weekend!

Our Waterproofing Services


  • “Their corroboration, and the fact that they really answered all my questions if I had any.”

  • “Clean and Seal Decks, Fences, Patios, Drives, or Porches Fast response, good work, and Steve trusted me to pay only when the work was finished. I appreciated that”

Our Gallery

Our family-owned company is committed to outstanding customer service and the highest level of craftsmanship, and it shows in our results. Take a look at our online gallery to see some of our past work.

  • 30+ Years of Deck & Stair Coating

  • Family Owned & Operated Company

  • Licensed, Insured & Bonded

  • Weekend & Afterhours Service

  • All Work Backed by Warranty