New Construction Waterproofing

When it comes to new construction, success depends on many moving parts working together seamlessly. With over a decade of hands-on experience, Winco understands what it takes to properly waterproof and dampproof buildings—regardless of type or complexity. Unfortunately, we’ve seen firsthand how often critical details are missed in plans, installations are done incorrectly, or the wrong products are used altogether. In some cases, dampproofing is omitted entirely.

These oversights can lead to major issues—voided warranties, building failures, and costly water leaks. At Winco, we’ve made a name for ourselves by fixing the mistakes others leave behind. Why? Because we care enough to do it right and know exactly how to do it. Our team provides complete, accurate bids that reflect real-world needs—no shortcuts, no surprises. We also recognize that general contractors work within tight margins, which is why we work hard to ensure our takeoffs and pricing are spot-on.

Our bids are very detailed and show exactly what we priced, where it gets installed, and if possible, even the product name! The Winco difference will make your bids complete, accurate and will give you peace of mind knowing that we have you covered.

Winco Installs the following Products on New Construction:

• Sealants – Pretty much any sealants you can think of, we install it.
• Flashing – Anything from metal to rubber to ensure proper water drainage.
• Dampproofing – We install Building Wraps, Liquid, Rubber Membranes and More.
• Waterproofing – Bitumen, Rubber Membranes, Liquid Membranes, Protection Course Boards, Negative Side Waterproofing and French Drains.
• Insulation – Rigid Board such as Extruded Polystyrene Foam and Polyisocyanurate Foam Board.
• Water Repellents – Used on Exterior Stone Surfaces such as CMU and Masonry.

There is a reason why we work with some of the best construction companies in San Antonio, time and time again. We bring an exceptional value and quality that you simply will not get anywhere else. The Winco difference will give you peace of mind and will ensure that you are getting the best quality work and prouducts without cutting corners.

Need numbers or have questions? Call us at 210-599-3000 and ask for Aaron, or use the form below to get in touch.

Remedial Waterproofing and Dampproofing

For over 30 years, Winco has been solving tough water-related issues across a wide variety of structures. Through experience, we’ve learned which products and techniques deliver long-term results—and which shortcuts to avoid.

From simple fixes to complex repairs, our goal is to deliver cost-effective solutions that last. Sometimes, spending just a few extra dollars can extend a system’s life by 5 to 10 years. Often, it’s the little things—like pre-treating a surface or using a bond breaker to prevent three-sided adhesion—that make all the difference. These thoughtful touches cost little but dramatically improve performance and longevity.

At Winco, we treat every job as if it were our own. We take the time to evaluate each issue and apply the best product or system—always keeping your budget and goals in mind.

Our Remedial Services Include:

• Painting

• Dampproofing

• Waterproofing

• Reinstallation of Sealants

• Roof Repair

• Power Washing

• And more…

Our clients keep coming back because they know they can trust us. One thing we’ve learned after three decades is that integrity matters. Like the honest car dealer you return to because he’s always straight with you, we believe in treating clients the way we’d want to be treated.

Don’t just take our word for it—browse through the testimonials from our customers. Their words speak volumes about who we are and the pride we take in our work.

Have a problem with your home or building? Contact us today—we’re here to help.