HydroBlok produces lightweight, 100% waterproof, mold‑proof construction panels intended to replace traditional drywall and sheathing with a high‑performance composite. Its HydroBlok One board integrates insulation and eliminates redundant layers, positioning the product as a disruptive alternative to gypsum board and OSB. Based on early feedback and internal tests, the company reports it can reduce material and labor costs by up to 30% and accelerate build times by as much as 50%. HydroBlok is targeting manufacturing expansion in the US, nationwide distribution, and continued R&D for next‑generation products. CEO and co‑founder Colin House highlighted rapid traction and strong builder enthusiasm as validation of the product’s market fit.

Total raised

$6M

Funding rounds

1

Latest round

Series A

Latest activity

Jun 2025