Vertical & Below-Grade

We offer expert waterproofing solutions for vertical surfaces and below-grade applications, protecting buildings from costly moisture damage and structural decay.

Don’t Let Moisture Compromise Your Structure

Water intrusion doesn’t just affect floors—it can compromise walls and below-grade structures as well. Whether you’re safeguarding a foundation, retaining wall, or elevator pit, our team is equipped with the systems and skill to get the job done right.

What Are Vertical & Below-Grade Systems?

Vertical and below-grade waterproofing involves applying specialized materials to surfaces exposed to consistent or periodic moisture. These systems are designed to prevent water infiltration through foundation walls, basement levels, exterior retaining walls, and other vertical concrete or masonry structures. Without proper waterproofing, these areas are highly vulnerable to water damage, which can lead to mold growth, structural deterioration, and costly repairs over time.

At ArtDeck, Inc., we use a range of high-performance waterproofing membranes and coatings—including fluid-applied, sheet-applied, and bentonite systems—tailored to the specific site conditions and project requirements. Our expert technicians ensure thorough surface preparation, precise installation, and attention to detail at every step to create a durable, watertight barrier. We work closely with contractors, engineers, and property owners to deliver solutions that meet building codes, environmental demands, and long-term performance goals. Whether for new construction or retrofit projects, our vertical and below-grade waterproofing systems provide reliable protection against hydrostatic pressure, moisture intrusion, and weather-related wear, safeguarding your investment from the ground up.

Common Applications Include:

  • Foundation walls and basements
  • Underground garages and vaults
  • Retaining walls
  • Planter boxes and garden walls
  • Elevator pits and mechanical rooms

Proper waterproofing of these areas is crucial to maintaining structural integrity and preventing mold, mildew, and long-term water damage.

vertical and below-grade water intrusion protection

Key Features & Benefits

  • Moisture protection: Prevents water seepage, hydrostatic pressure, and related damage.
  • Flexible membranes: Designed to move with the structure and accommodate minor shifts or cracks.
  • Protection against mold and rot: Creates a dry, healthy environment in and around the building.
  • Long-lasting durability: Engineered for long-term performance in below-grade conditions.
  • Seamless integration: Can be tied into horizontal waterproofing systems for complete coverage.

Our Waterproofing Process

At ArtDeck, Inc., we take a comprehensive approach to each vertical or below-grade waterproofing project. We begin with a detailed site assessment, then recommend the right system based on your substrate, location, and water exposure level. Our team manages every step—from prep and primer to membrane application and finishing—ensuring a high-quality, long-lasting solution.

We consider factors such as soil composition, drainage conditions, building movement, and exposure to hydrostatic pressure to select the most effective materials and techniques. Whether the project requires a self-adhered membrane, fluid-applied coating, or a drainage composite, our certified technicians apply each component with precision and care. Our goal is to deliver a fully integrated waterproofing system that protects your structure, meets code requirements, and stands the test of time. With ArtDeck, you can trust that every detail has been addressed to prevent moisture intrusion and preserve your building’s integrity.

Why Choose ArtDeck, Inc.?

With years of specialized experience, ArtDeck, Inc. is a trusted partner for commercial and residential waterproofing projects. We bring deep technical knowledge, reliable materials, and a commitment to workmanship that sets us apart.

  • Fully licensed and insured for residential and commercial work
  • Proven waterproofing systems for vertical and subterranean applications
  • Experienced technicians who follow manufacturer guidelines and industry best practices
  • Custom solutions tailored to your site conditions and project needs

Whether you’re protecting a new build or upgrading an existing structure, we deliver results that stand the test of time. Water intrusion at the vertical and below-grade level can lead to serious structural and health issues. Let ArtDeck, Inc. help you protect your property from the ground up.

Contact us today to request a quote or schedule an on-site evaluation. We’ll recommend the right system for your needs and ensure your project is protected for the long haul.

Read our reviews

Steve F.

Northridge, CA

“BEST SERVICE I HAVE EVER RECEIVED. Please don’t waste your time looking for other waterproofing companies. Nate, from ArtDeck Inc., came to our property and provided us with an estimate to install/replace the existing waterproofing system on the deck. He answered all my questions, and responded to all my emails in a timely manner. I received 3 other estimates, but nothing could compare to the price, honestly, and integrity of ArtDeck.”

Amy B.

Studio City, CA

“I called Art because I thought there was a waterproofing issue at my home. Art is an honest guy who gives you the right suggestion. He told me that the temp solution was water proofing but the long term solution was something else as in replacing the actual windows. If you are looking for an honest person then you should call this company. I hope I never have issues with waterproofing but if I do, the first person I will reach out is Art.”

 

Steve F.

Northridge, CA

“BEST SERVICE I HAVE EVER RECEIVED. Please don’t waste your time looking for other waterproofing companies. Nate, from ArtDeck Inc., came to our property and provided us with an estimate to install/replace the existing waterproofing system on the deck. He answered all my questions, and responded to all my emails in a timely manner. I received 3 other estimates, but nothing could compare to the price, honestly, and integrity of ArtDeck.”

 

Amy B.

Studio City, CA

“I called Art because I thought there was a waterproofing issue at my home. Art is an honest guy who gives you the right suggestion. He told me that the temp solution was water proofing but the long term solution was something else as in replacing the actual windows. If you are looking for an honest person then you should call this company. I hope I never have issues with waterproofing but if I do, the first person I will reach out is Art.”