Find a Healthy Building Professional
Planning to build or retrofit with healthier materials? We can help you plan the work and, where operationally available, connect you with a building professional familiar with GaiaCrete™ — Mr Hemp House®'s branded hempcrete / hemp-lime building material alternative.
Nationwide remote Healthy Home Assessments and consultation may be available while the local professional network continues to expand.
How the Consultation Process Works
From your first call to project completion — here's what to expect. Availability varies by market.
Project Consultation
Call or submit a request. We'll discuss your project goals, budget, and timeline.
Home Evaluation
A remote or, where available, in-person Healthy Home Assessment reviews materials, moisture, ventilation, and conditions.
Detailed Proposal
Receive a scope of work, material list, timeline, and transparent cost estimate.
Project Execution
Where a qualified professional is available in your market, the scope is executed to documented Mr Hemp House® standards.
Why Certification Matters for Hemp Building
Hemp-lime materials do not behave like conventional insulation. Training in mix ratios, curing, and moisture management matters, which is why the professional network is built through MHHU training rather than open referral.
Veteran Owned & Led
Founded by a U.S. veteran committed to protecting families from toxic building materials and ensuring quality craftsmanship.
MHHU Training
Network professionals complete training at Mr Hemp House® University — GaiaCrete™ application, lime systems, and healthy building science.
Expanding Network
Nationwide remote Healthy Home Assessments and consultation may be available while the local professional network continues to expand.
Documented Process
Assessments produce a written Home Health Score report and prioritized action plan. Any testing scope varies by market and package.
Full-Service Execution
From assessment to materials sourcing to installation — one certified team handles your entire project.
Single Point of Contact
You get one point of contact who coordinates the phases of your project and answers questions along the way.
What Projects Our Contractors Handle
Whether you're building new or upgrading existing. Scope and availability vary by market.
New Home Construction
Build with GaiaCrete™ from the ground up — wall systems, insulation, and mineral finishes selected for lower-emitting interiors.
Explore New Home ConstructionInsulation Retrofits
Replace spray foam, fiberglass, or cellulose with GaiaCrete™ hemp-lime material. Upgrade existing walls, attics, and basements.
Explore Insulation RetrofitsHome Health Score
A structured Healthy Home Assessment with a personalized action plan before construction begins. Scope and any testing vary by market and package.
Explore Home Health ScoreMold Evaluation & Prevention
Moisture-aware assemblies using alkaline lime binders and vapor-permeable hemp-based materials designed to help limit conditions that support mold growth.
Explore Mold Evaluation & PreventionCommercial & Multi-Family
Schools, offices, apartments, and healthcare facilities — GaiaCrete™ installation at scale with project management.
Explore Commercial & Multi-FamilyNatural Finishes & Plasters
Lime plasters, mineral paints, and bio-based sealants — the final layer of a healthier building envelope.
Explore Natural Finishes & PlastersWhy Contractors Choose GaiaCrete™ Over Conventional Insulation
| Feature | GaiaCrete™ | Spray Foam | Fiberglass |
|---|---|---|---|
| Off-Gassing | No added VOCs | 20+ years | Low but present |
| Mold Risk | Mold-resistant (high-alkalinity mineral composition) | Traps moisture | 24–48hr mold growth |
| Fire Rating | Class A flame spread (ASTM E84) | Burns with toxic smoke | Melts |
| Lifespan | 100+ yr service-life potential (hemp-lime research) | 20–30 years | 15–20 years |
| Carbon Impact | Stores biogenic carbon | High embodied carbon | Moderate |
| Indoor Air | Vapor-permeable | Degrades air quality | Neutral |
Hemp Insulation Contractor FAQ
What does a healthy building professional do?
They work with GaiaCrete™ hemp-lime materials, natural lime plasters, and lower-emitting building products across new construction, retrofits, and healthy-home upgrades. Professional, product, dealer, and installation availability varies by market.
How do I get connected with a professional?
Contact Mr Hemp House® to review your project. Nationwide remote Healthy Home Assessments and consultation may be available while the local professional network continues to expand. Where a qualified professional is operationally available, we can make an introduction.
What areas do you serve?
Professional, product, dealer, and installation availability varies by market. Remote Healthy Home Assessments and consultation are available nationwide, and in-person professional services are available where the network is operationally established.
How much does hemp-lime installation cost?
Costs vary by project scope, market, and assembly. Installed GaiaCrete™ work generally falls in the $180–$360+ per square foot range and materials-only in the $50–$150+ range. Every project is quoted individually before work begins.
Can I retrofit existing walls with GaiaCrete™?
Yes. GaiaCrete™ is designed for both new construction and retrofit work, including replacing existing insulation with a vapor-permeable hemp-lime assembly where the wall design supports it.
Explore Healthy Building Guides by State
Browse state-level healthy building guides covering climate, moisture, and material considerations. Professional, product, dealer, and installation availability varies by market.
View all service areas →The Expert Behind America's Healthy Home Movement
Mr Hemp House® was founded on a simple premise: every family deserves to know what's in their walls — and to have better options.
Christopher L. Penn — Founder & CEO
Christopher L. Penn spent decades inside homes as a contractor, builder, and problem-solver. He saw mold, moisture damage, poor materials, indoor air problems, and families living in spaces that were never designed around human health. Mr Hemp House® was created to give families, builders, and communities a better standard.
U.S. veteran and healthy home expert, Christopher leads Homes/Items Scanned Daily and has reviewed 1,579+ building products for hidden toxins (results vary by home and inputs).
"We're not just selling insulation. We're building the infrastructure for an entire category — healthier homes, from the foundation up."
Read the Founder Story →Veteran Owned
U.S. Military Veteran
IMPEL Cohort
Innovation Program
VOSB Certified
Verified Small Business
SAM.gov
Government Registered
Trusted Service
Homeowners & Contractors
VIP Procurement
Federal Cohort
Ready to Get Started?
Request a project consultation, review your options, or apply to join the Mr Hemp House® dealer network.
Contractors interested in cold-climate work can review the planned Minnesota Healthy Home Project.