JOSS Contracting specializes in the protection of commercial and residential construction from the harsh environmental conditions of the State of Florida. Our expertise in waterproofing and application of sealants ensures that water and moisture will not penetrate your construction areas that need to stay dry. We are also experts in barrier technology application. We use the very best products from the best manufactures available on the market today. We are the leader in designing and installing high-grade waterproofing, air barriers, vehicular traffic coating systems, concrete joint sealants, sandwich slabs, planter insulation, amenity decks and vault waterproofing. The forty five inches of rain that falls in Florida each year is not something to take lightly. Do not trust just anyone to keep your structures dry.


If you’ve never had any waterproofing done to your outdoor deck, it pays to get it done as soon as possible. The longer you wait, the more difficult the job becomes. Untreated water damage can cause wood rot or concrete deterioration. Often this means a complete deck replacement. This work requires a professional who has the right waterproofing knowledge, systems and tools.


The PLI-DEK™ waterproof deck system for plywood substrates has been ICC-ES evaluated since 1980. The system utilizes a 2.5 galvanized metal lath and a polyacrylic emulsion base coat, with a wide variety of finish options. All of the systems carry a One-Hour and Class A Fire Rating. When installed, the system is approximately 3/16 inch thick and less than 3 lbs. per square foot, therefore alleviating additional framing expenses. These systems have proven its durability and quality.


Con-Dek: The Con-Dek:tm: System is a 1-hour, Class “A” Fire Rated waterproof deck coatings for concrete substrates that offers high durability and low maintenance for exterior use. The system is designed for high traffic pedestrian balconies, roof decks, walkways and stairs where waterproofing and durability is essential. This one or two day process protects your patio and open areas for years. The Con-Dek ® System consists of 3/4 oz. fiberglass mat, elastomeric resin and a durable polymer cement finish coat.

Air Barriers

Uncontrolled air leakage through the building envelope will affect the performance of the building materials within the wall assembly. Air/Weather Barriers (AWB) control the unintended movement of air and moisture into and out of a building enclosure. Air/Weather Barrier systems are comprised of a number of materials which are assembled together to provide a complete barrier to air and water leakage through the building envelope.

JOSS Contracting was founded in 2013 by three veterans of the construction industry with a combined 45 years of experience. The mission at Joss Contracting is to be the premier waterproofing contractor in the state of Florida. JOSS Contracting is based in Sarasota, Florida and performs work throughout the state of Florida. Joss specializes in structural strengthening and full repair of new or existing surfaces. We perform complete leak detection, installatiuon of new waterproofing on commercial or residential structures including low rise buildings, high rise condos, other complexes, parking garages, hotels and stand alone residencial and commercial structures. Treating customers like family can have a long-term positive impact. Joss strives for a commitment to quality improvement and a customer-centered approach to business. Below are a few of our regular customers sine 2013.

Pulte Lennar Homes West Bay Bright Bay

Joel Potter

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Braulio Nunez
Project Manager

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J English

John brings 25 years of experience as a financial analyst to Joss. Prior to joining Joss he worked in the software and telecom industries leading companies through public offerings, mergers and acquisitions. Graduating from the University of North Carolina and the University of South Florida he earned degrees in finance, accounting and contract law.