Licensed & Insured Waterproofing Contractor Serving Los Angeles & Orange County  ·  ☎ 818-697-6334
BalconyWorks
Licensed & Insured · Free Estimates

Magnesite Decking in Los Angeles & Orange County

Skilled magnesite repair and replacement that restores worn, cracked, and failing deck substrates, then seals them with a lasting waterproofing system.

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Free on-site estimates · Licensed & insured · Most jobs backed by an 8-year warranty

Quick answer: Magnesite is a cement-like decking surface found on many older Southern California decks and stairs; when it cracks and delaminates, water reaches the structure underneath. Balcony Works repairs or replaces failing magnesite, rebuilds a sound substrate, and seals it with a modern waterproofing system, with most projects backed by an 8-year workmanship warranty.
01Overview

Bring Failing Magnesite Decks Back to Life

Magnesite shows up on many older Southern California decks and stairs, and over time it cracks, delaminates, and lets water reach the structure underneath. Patching over failing magnesite rarely holds, the underlying problem keeps spreading until the substrate is addressed.

Balcony Works removes and repairs failing magnesite, rebuilds a solid substrate, and applies a modern waterproofing system over it, giving you a durable surface backed by our 8-year warranty on most projects.

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Magnesite Decking project in Los Angeles
02What to Look For

Signs Your Magnesite Deck Is Failing

  • Cracking, chunking, or a crumbling surface
  • Hollow or drummy sounds when tapped
  • Rust stains bleeding through the surface
  • Soft areas or leaks showing up below the deck
  • Old patch jobs that keep failing again

See Any of These? Get a Free Inspection

03Our Process

How We Handle Every Magnesite Decking Project

  1. 1

    Free On-Site Evaluation

    We inspect the substrate, drainage, and current coating condition to find the actual source of water intrusion, not just where it’s showing up.

  2. 2

    Prep, Repair & Rebuild

    We strip out failed coatings, address cracks and dry rot, and rebuild a solid, stable base before any new system goes down.

  3. 3

    Waterproofing System Installed

    We apply a waterproofing system matched to your surface, traffic level, and exposure, installed to code by an experienced crew.

  4. 4

    Walkthrough & Warranty Coverage

    We walk the finished project with you, and most jobs are backed by our 8-year workmanship warranty.

04FAQ

Common Magnesite Decking Questions

Is it better to repair or fully replace a magnesite deck?

It comes down to how far the deterioration has spread. We check the substrate during a free inspection and recommend either targeted repair or full replacement, whichever protects your property better.

How long does a waterproofing job hold up?

A properly installed system typically holds up for years. Most of our projects come with an 8-year workmanship warranty, and regular upkeep can stretch that lifespan even further.

What should I expect to pay for waterproofing in the LA area?

Pricing depends on the size of the surface, its current condition, and which coating system fits the job. After a free on-site inspection we give you a clear, itemized quote, no pressure and no obligation.

How many days will the project take?

Most residential decks, balconies, and stairs wrap up in one to three days depending on prep work and weather. You will get a firm timeline before the crew starts.

Can you handle HOA and commercial jobs?

Yes. We take on residential, HOA, and commercial waterproofing throughout Los Angeles and Orange County, and we are licensed (1045438) and insured for projects of any size.

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Get a free on-site estimate for magnesite decking, no obligation.

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