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HydroBlok secures $6 million in extended Series A funding led by Pier 88 Investment Partners and Andina Capital Partners to expand manufacturing, distribution, and product development. The company offers lightweight, waterproof, mold-proof construction panels that replace traditional drywall and sheathing materials. Its technology has already been adopted by major hospitality brands and is gaining traction for its cost and labor-saving benefits.
Why a Waterproof Board Is More Than Just a Gimmick
Traditional materials like gypsum board and OSB make up a significant share of residential and commercial structures, yet they have seen minimal innovation for decades. HydroBlok introduces a building solution that replaces outdated components with a lightweight, 100% waterproof, and mold-proof alternative. The composite panel integrates thermal insulation and moisture protection into a single board, eliminating the need for redundant layers.
The system reduces labor and material costs by up to 30% and accelerates construction timelines by as much as 50%. These efficiencies result from removing extra components typically required to make traditional materials resistant to moisture and thermal loss. Builders have responded strongly, with the company citing rapid uptake and positive feedback from early installations.
Inside the $6 Million Series A Funding Round
On June 16, 2025, HydroBlok announced an extended Series A funding round totaling $6 million. The investment was led by Pier 88 Investment Partners, a San Francisco–based asset manager, and Andina Capital Partners, the investment division of a Utah-based multi-family office.
This capital raise follows a period of growing traction and market interest, giving the company resources to expand operations. Both investment groups bring strategic insight and have a track record in supporting innovation-driven companies across various sectors.
What Makes HydroBlok’s Panels a Game-Changer in Construction
HydroBlok’s core product is engineered to function as a direct substitute for drywall and other sheathing materials. Each board features:
- Lightweight composition for easier handling
- Complete waterproofing without additional layers
- Mold resistance
- Built-in thermal insulation
These characteristics help streamline installations, cut down on on-site complexity, and reduce the total number of materials needed on a job. The product also eliminates the dependency on separate insulation and moisture barriers, further minimizing construction waste and project timelines.
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Where the Money Goes: Scaling, Distribution, and R&D
The newly raised funding will be directed toward expanding HydroBlok’s U.S. manufacturing footprint and supporting nationwide distribution.
Funds will also be used to accelerate product research and development. The company is preparing to extend its offerings into applications such as exterior sheathing, drywall alternatives, and stucco-related materials. This will allow HydroBlok to reach a broader share of the construction market while reinforcing its role in replacing outdated solutions.
From Luxury Hotels to Mainstream Markets: Adoption Momentum Builds
HydroBlok has completed over 100,000 installations with no recorded failures. The product has been implemented in projects backed by hospitality brands including Hilton, Marriott, Hyatt, and Ritz-Carlton.
These early use cases serve as validation of the board’s durability and performance in demanding environments. With proven results in premium commercial settings, the company now aims to capture interest across both residential and commercial construction sectors.
What Investors See in HydroBlok’s Potential
Pier 88 Investment Partners and Andina Capital Partners have both expressed confidence in HydroBlok’s market readiness and leadership. Mitch McCullough, President and General Partner of Pier 88 Ventures, noted the growth potential within next-generation building materials and credited HydroBlok’s technical edge and experienced team as key strengths.
Colin House, Co-Founder and CEO of HydroBlok, emphasized the value of working with partners who understand long-term growth and market transformation. Both firms bring expertise in scaling operations and navigating competitive industries.
Can HydroBlok Set a New Standard in Building Materials?
HydroBlok’s product line targets inefficiencies in traditional construction workflows, offering performance and cost advantages through integrated design. With significant backing from strategic investors and a solid record of performance in commercial projects, the company is now positioned to scale into broader markets.
Its ability to deliver measurable savings in labor, materials, and build time offers a compelling case to builders and developers seeking cost-effective construction alternatives. The next phase will test HydroBlok’s capacity to execute on manufacturing expansion, broaden its distribution reach, and maintain quality as adoption scales.
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