Deck Waterproofing Contractor

Finish your project’s decks, walkways and stairs with proven water and weather protection, expertly applied. Experienced deck waterproofing contractor, Insul-Flow, offers fast, turnkey service to protect exterior surfaces at your multi-family and commercial building projects.

Insul-Flow relies on the unique coating system from Pli-Dek for a high-durability, low-maintenance deck waterproofing solution. The Pli-Dek System is a 1-hour, Class “A” fire-rated waterproof deck coating for plywood substrates, designed for high-traffic pedestrian balconies, roof decks, walkways and stairs.

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Choose Insul-Flow to Waterproof Decks with Long-Lasting Pli-Deck

The Pli-Dek System consists of a galvanized metal lath, polymer cement base coat and intermediate coat, and offers:

  • UV-resistant, lightweight formulations
  • Durability to 6000 psi
  • 1-hour & Class “A” fire rating
  • An extensive selection of attractive, hard-wearing and ADA-compliant finishes
  • Easy, fast-drying applications

Trained Crews Apply Waterproof Deck Coatings

Trained and certified by Pli-Dek, Insul-Flow crews apply the Pli-Dek System exactly to specification. We inspect all surfaces before application to spot and solve any issues that could cause a leak, and stand ready to waterproof your decks and walkways as soon as the structures are complete.

For more information about our deck waterproofing services, contact us today at 559-456-1105 or by filling out our Get a Quote form.

Insul-Flow Uses the Best Products to Ensure the Best Results

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Maxxon Service Award


2684 N Fordham Avenue
Fresno, CA 93727
Ph. 559.456.1105


5349 S Tracy Blvd
Tracy, CA 95377
Ph. 559.456.1105


2600 River Avenue
Rosemead, CA 91770
Ph. 626.571.8023


3773 Howard Hughes Pkwy Ste 500S
Las Vegas, Nevada 89169
Ph. 626.571.8023


15594 E Batavia Dr unit a
Aurora, CO 80011


PO Box 3556
Nampa ID 83653
Ph. (208)606-9772