Shasta County, California
Cornerstone Hempcrete brings natural, sustainable building solutions to homeowners and builders throughout Shasta County — combining ancient materials with modern craft.
What We Build With
Hempcrete is a bio-composite building material made from the inner woody core of the hemp plant (hurd), mixed with lime binder and water. It's been used in construction for centuries and is now recognized as one of the most sustainable building materials available.
Lightweight, breathable, and naturally fire-resistant, hempcrete walls actively regulate humidity, resist mold, and improve indoor air quality — creating living spaces that are as healthy as they are sustainable. With insulation performance 2–4× that of traditional homes, it's the ideal material for Northern California's climate.
What We Offer
Full hempcrete wall systems for new residential and commercial builds. We work alongside your architect and contractor to deliver a seamless, natural build from the ground up.
Upgrade your existing home with hempcrete insulation panels and infill walls. Improve energy efficiency and indoor air quality while reducing your environmental footprint.
Not sure if hempcrete is right for your project? We offer in-depth consultations for homeowners, builders, and architects exploring sustainable building options in Shasta County.
Why It Matters
Carbon Negative
Hemp absorbs more CO₂ during growth than is released during production, making hempcrete walls a net carbon sink.
Superior Insulation
Hempcrete walls deliver 2–4× the insulation performance of traditional construction. Their thermal mass maintains steady indoor temperatures year-round — slashing energy bills through Shasta County's hot summers and cold winters.
Breathable Walls, Healthier Air
Unlike conventional building materials, hempcrete walls breathe — naturally regulating humidity and filtering indoor air. The result is a measurably healthier living environment free of the off-gassing, moisture build-up, and mold that plague standard construction.
Fire Resistant
Hempcrete is naturally fire resistant — an important quality for building in Northern California's wildfire-prone region.
Non-Toxic & Clean Air
No synthetic chemicals, VOCs, or off-gassing — ever. Combined with hempcrete's natural breathability, your home maintains exceptional indoor air quality from day one and for the life of the building.
Built to Last
Hempcrete structures become harder and more durable over time as the lime carbonates — buildings centuries old still stand in Europe.
How It Works
Consultation
We meet with you to understand your project goals, site conditions, budget, and timeline. Free for all Shasta County projects.
Design & Planning
We collaborate with your design team to specify the hempcrete mix, wall assembly, and structural framing system.
Installation
Our skilled crew casts and packs hempcrete on-site, ensuring uniform density and proper curing conditions.
Finishing
We apply natural lime plaster finishes that protect and beautify your hempcrete walls for decades to come.
Where We Work
We're proud to be a locally rooted company serving homeowners and builders throughout Shasta County and surrounding areas. If you're building in Northern California, we'd love to talk.
Get Started
Whether you're planning a new home, a renovation, or just want to learn more, we're here to help. Contact us for a free consultation.
Request a Free Consultation