Waterproofing Made Easy
Prevent water intrusion through any floor or wall
Waterproofing Surface Solutions
Commercial Buildings
Residential & New Construction
DIY Renovations & Remodeling
Contractors & Developers
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Waterproof
Surface Sealers
Semco’s Liquid Membrane for Interior & Exterior Surfaces
Discover the advantages of Semco’s Liquid Membrane—a flexible, UV-resistant waterproofing solution ideal for Florida homes, basements, and outdoor surfaces.
It’s easy to apply, long-lasting, and helps avoid costly repairs.These expert tips and solutions for waterproofing will give you peace of mind.
Rated as one of the Best Sealers for Waterproofing Surfaces, like Wood, Concrete, Floors and Walls.
Concrete
Sealer / Paint
Wood
Sealer / Paint
Metal
Sealer / Paint
Pool
Waterproofing
Discover Why SEMCO is the “GO-TO” for Contractors & DIYer’s when it comes to Waterproofing Solutions

Waterproofing
Waterproofing is one of the most critical applications for any surface. This is true for roof decks, bathrooms, showers, pools and many other applications. Semco’s integral waterproofing system has been tested under extreme conditions to be able to withstand water pressure even while being physically stretched. These properties allow the underlying performance to work while the surfaces aesthetic beauty is maintained.
Discover why we’re a trusted name in waterproofing across the Sunshine State!
At SEMCO, we specialize in comprehensive waterproofing solutions tailored to the unique needs of residential and commercial applications.
When it comes to protecting your property from water damage, professional waterproofing products and systems are essential for long-lasting results. Whether you’re dealing with a leaky basement, foundation cracks, or exterior water intrusion, our expert team uses advanced techniques and high-quality materials to ensure your structure remains dry and secure.
By addressing water issues proactively, you can prevent costly repairs, mold growth, and structural damage, all while increasing the value and longevity of your property.
Our waterproofing solutions are suited for interior and exterior waterproofing. Where heavy rains and humidity are common, it good to understand the importance of reliable moisture barriers and effective water management. SEMCO Florida is committed to delivering top-tier eco-friendly products and proven methods to safeguard your home or business.

Waterproofing Membrane Features
Seamless
Seamless waterproofing
Any Surface
Both vertical and horizontal
Bridging
Waterproofing while bridging cracks
Aesthetic
Provided in any color
Flexible
Liquid form and fabric form
Searching for: Waterproof paint for concrete in various colors. We have a great solution!
Concrete is a versatile material that can be used for a variety of purposes, both indoors and outdoors. However, concrete is also porous, which means it can absorb water and moisture. This can lead to problems such as mold, mildew, and staining. Waterproof paint for concrete can help to protect your concrete surfaces from the elements and extend their lifespan.
There are a variety of waterproof paints available for concrete, both in clear and colored finishes. Clear waterproof paints will protect your concrete without changing its appearance. Colored waterproof paints can be used to add a pop of color to your concrete surfaces or to match the existing décor of your home.

Resurface Concrete Pool & Make it Waterproof with Microcement & Liquid Membrane
Concrete pools are a popular choice for homeowners, but they can be susceptible to damage over time. Cracks, stains, and algae can all make a pool look unsightly and even unsafe. If your concrete pool is starting to show its age, you may be considering resurfacing it.
Microcement and liquid membrane are two materials that can be used to resurface concrete pools and make them waterproof. Microcement is a thin, cementitious coating that can be applied to a variety of surfaces, including concrete.


Interior & Exterior Basement Waterproofing
The most common type of interior waterproofing is to use a sealant. Sealants are available in both liquid and paint form, and they can be applied to concrete, masonry, and wood. Sealants work by filling in the tiny cracks and pores in the basement walls and floors, making it more difficult for water to penetrate. Exterior waterproofing is a more complex process than interior waterproofing. Exterior waterproofing involves installing a drainage system around the foundation of the home. The drainage system consists of a series of pipes that collect water from the ground around the foundation and divert it away from the home.
Cinder block basement waterproofing, Sealing exterior cinder block walls, concrete block waterproofing
Concrete block is extremely porous. It acts like a sponge for moisture and has to be waterproofed to prevent moisture from entering into a home or building. Waterproofing the ‘dry’ side of a foundation or wall is referred to as negative-side waterproofing. Its major goal is to provide a barrier coat that prevents water from seeping through the wall and keeping the area dry.
With its lower cost and larger size options OSB (Oriented Strand Board) continues to gain market share in cladding and flooring applications.
With its lower cost and larger size options OSB (Oriented Strand Board) continues to gain market share in cladding and flooring applications. OSB still does not perform as well as plywood when it is exposed tomoisture. This can lead to mold and that is why knowing how to effectively waterproof OSB will help you on your projects.

Waterproof Drywall: Your Guide to Moisture-Resistant Home Improvement
Keeping your home safe from moisture is key to preventing damage, mold, and mildew in areas like bathrooms, kitchens, and basements. Waterproofing your drywall is a smart solution for any place in your home that faces high humidity or the occasional leak. With moisture-resistant drywall, you’ll protect your walls and create a cleaner, safer living space.
In this guide, we’ll cover the benefits of waterproof drywall, installation tips, and how to use top-quality products like Semco’s Liquid Membrane to create a lasting, watertight barrier.

Contractors: Use In New Construction
How To Waterproof Window Box, Window Waterproofing Solutions for New Construction
Windows are one of the most common parts of a home or building for water intrusion. It is therefore essential to properly waterproof a window box during construction. For window waterproofing in Florida, in particular, when building a block structure the porous block can easily wick water through a wall if the right materials and methods are not used.
We Do It All
Resurfacing for Tile, Concrete, Hardwood, Epoxy + more!
Semco Florida’s solid surface solutions product line includes four distinct surface treatment systems applicable to a variety of environments and needs. Semco’s Remodel Without Removal is a resurfacing product that allows you to remodel existing surfaces without having to remove the old surface material. The remodel without Removal system can resurface tile and grout, stone, wood, concrete, vinyl, epoxy and more.