5 Best Deck and Stair Waterproofing Companies Reviewed 2025

Having a patio-style deck, a pool with a deck, or outdoor stairs is commonplace in the area. Unfortunately, experiencing wear and damage from the elements is common, too. As luck would have it, there are viable solutions to this persistent problem. 

However, from researching what you consider to be reputable companies to understanding what they can do for you, you can spend altogether too many hours trying to find exactly what you need. You’re busy and don’t have time for that. 

Help is here to save the day, and your deck. This quick guide will make your decision easy and help inform you on the top five deck and stair waterproofing companies nearby. We’ve done the work for you, so all you need to do is book an appointment. 

1. Capital Deck & Stair Waterproofing - The Best Company for Comprehensive Service

Capital Deck & Stair Waterproofing is known for leading with integrity. They start every project with a free, no-obligation estimate. Customers always understand the fine print on every contract before proceeding with the work. They have been in the industry for over 30 years, and it shows in the way they conduct business and the quality of their work. 

Capital Deck & Stair Waterproofing offers a comprehensive range of services that include stair waterproofing, commercial waterproofing and resurfacing, leisure and walking deck waterproofing, deck and pool deck waterproofing, and balcony waterproofing. They also offer repairs and replacements as needed when rot or other damage is identified. 

When customers work with Capital Deck & Stair Waterproofing, they can rest assured that the end results will provide slip resistance, high-quality waterproofing, and a beautiful new surface. Their team provides excellence in customer service and is available to answer questions and supply guidance, so they will receive the attention they need every time.

2. Expert Waterproofing N Roofing IHC Group - Ideal for Swimming Pool Waterproofing

In business for more than a decade, Expert Waterproofing N Roofing IHC Group proudly serves Beverly Hills, Malibu, Santa Monica, and the surrounding areas. They provide uniquely tailored solutions to their customers’ waterproofing problems, because a one-size-fits-all answer doesn’t always work in every situation. 

Their team focuses on customers and uses them to guide each project. With frequent consultations and taking the customer’s opinions and needs into account, each project takes form based on the customer’s request. 

Beyond that, they are unique in that they provide waterproofing for swimming pools, in addition to their other services. They do this through a vetted process of inspection, preparation, application, and testing. 

3. Matrix Roofing & Waterproofing, Inc. - A Good Company for Roofing Needs

Home and business owners need a wide variety of repairs and replacements. When you need more than one service, a company like Matrix Roofing & Waterproofing, Inc. is good to know about. They provide a broad range of services, including custom roofing and waterproofing specifications, emergency roofing repair, roof leak analysis, preventative replacement and repair, roof replacement, and waterproofing.  

Matrix Roofing & Waterproofing, Inc. really shines in roof repair, after all, it’s in the name. Since emergencies never happen when it’s convenient for anyone, it’s good to know a company that has experience in emergency roof repair.

Watch Matrix’s drone videos for a bird’s eye view of their work and gain a better understanding of what happens on a roof.

4. Trifecta Reconstruction Waterproofing Painting - A Good Service for Painting Needs

Trifecta Reconstruction Waterproofing Painting has been in business for almost 20 years. They specialize in HOA and commercial reconstruction projects. The company name says it all. They offer a trifecta of services, including painting, reconstruction, and waterproofing, in addition to repairs. They are fully licensed as a general contractor and painting contractor and specialize in reconstruction. 

While Trifecta Reconstruction Waterproofing Painting does offer a wide variety of services, they excel in their painting services, according to customer reviews found online. In addition, they are the only company on this list to offer painting as part of their business. It is helpful to note that their waterproofing services include balconies, courtyards, planters, pool decks, podium decks, common area walkways, general waterproofing services, and general structural repairs. Their services do not include wooden residential decks like some of the other companies on this list.

5. Technical Waterproofing - Ideal for Caulking Needs

Technical Waterproofing is a Los Angeles-based contractor specializing in commercial, industrial, and residential waterproofing applications. In addition, they focus on hi-rises and large buildings.

The professionals at Technical Waterproofing offer an expansive array of services that includes caulking in a variety of areas. They offer preventative waterproofing services, water and weathering repair services, below grade waterproofing, clear waterproofing and cleaning, epoxy injection, and vehicular and pedestrian deck coating systems, as well.

Choosing a deck and stair waterproofing company can seem daunting and is probably not on your bucket list, but it still needs to be done to protect your property. The process of finding a reliable company to work with has never been easier, as the research is readily available here. Find the best company for your property needs and contact them right away. In no time at all, you’ll be enjoying your outdoor space once again.

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