Stucco Waterproofing & Sealing

South Florida's weather does not give stucco a break — the right waterproofing treatment is what keeps your exterior holding up year after year.

Stucco is durable by design, but it is not impervious to water — and in South Florida, water finds a way in. The combination of heavy seasonal rain, high humidity, and salt air from the coast creates conditions that break down exterior surfaces faster than almost any other climate in the country. When stucco is left unsealed or when the original waterproofing coat has worn down over time, moisture starts working its way through the surface. At first it is invisible. Then it shows up as staining, efflorescence, or soft spots in the wall. Left long enough, it reaches the substrate and causes damage that costs significantly more to fix than a waterproofing treatment would have cost to apply.

Competence Plastering & Stucco applies waterproofing coatings and sealants to stucco surfaces as a standalone service and as a final step on every new stucco installation we complete. We work on residential properties, commercial buildings, and everything in between across Hallandale Beach, Dania Beach, Hollywood, and throughout Broward County. Renet Dieujuste has 35 years of experience working with exterior surfaces in this climate and understands exactly where moisture entry points develop, how to address them correctly, and which products hold up in South Florida's specific conditions. The goal is always to extend the life of your existing stucco and protect the structure behind it.

Waterproofing is one of the most cost-effective investments you can make in an exterior stucco surface. It is far less expensive than repairing water damage, and it adds years to the life of the finish. If your stucco has not been sealed recently — or you are not sure when it was last treated — call (833) 972-2895 for a free assessment. We will tell you honestly what the surface needs and give you a clear estimate on the work.

What We Offer:

Waterproofing Coating Application – Professional-grade waterproofing coatings applied to exterior stucco surfaces to create a barrier against moisture penetration and salt air exposure.
Stucco Sealing – Penetrating sealants applied to stucco that protect the surface from water intrusion while maintaining the breathability the wall system requires.
Post-Installation Waterproofing – Waterproofing treatment applied as a final step following new stucco application, ensuring the finished surface is protected from day one.
Existing Surface Waterproofing – Standalone waterproofing service for existing stucco surfaces that have never been treated or where previous coatings have worn down over time.
Moisture Intrusion Assessment – Evaluation of existing stucco for signs of moisture entry, including surface staining, efflorescence, soft spots, and early-stage water damage.
Commercial Waterproofing – Waterproofing and sealing services at commercial scale for office buildings, retail properties, and multi-unit developments throughout Broward County.
Coastal Property Treatment – Specialized waterproofing applications for properties in Hallandale Beach, Dania Beach, and coastal areas where salt air exposure accelerates surface wear.

Why Choose Competence Plastering & Stucco for Stucco Waterproofing & Sealing

35 Years Working in South Florida's Climate – Renet has spent 35 years working on exterior surfaces in this specific climate. He knows exactly how humidity, rain, and salt air affect stucco over time — and which waterproofing approaches actually hold up here versus what sounds good on a product label.
Waterproofing Built Into Every Job – On every new stucco installation we complete, waterproofing is part of the process — not an optional add-on. The surface is protected before we leave the job site.
Honest Surface Assessment – Before recommending any waterproofing treatment, we assess the surface condition. If the stucco has damage that needs to be addressed first, we will tell you — because waterproofing over a compromised surface does not fix the underlying problem.
Coastal Property Knowledge – Properties near the coast in Hollywood, Hallandale Beach, and Dania Beach face accelerated surface wear from salt air. We understand how to treat those surfaces specifically and which products perform best in those conditions.
State Certified & Fully Insured – All waterproofing and sealing work is completed by a state-certified, licensed, and fully insured contractor. Your property is covered throughout the process and the work meets Florida's construction standards.