Evolving the built environment for a changing world
Since 2007, Little Foot Building Analyis has worked to make homes perform better. What began as an energy-focused remodeling company has evolved into a specialized building analysis and energy rating practice.
Today, Little Foot Building Analysis focuses on diagnostics, testing, weatherization, and energy modeling. We investigate, measure, quantify, and improve building performance.
Certified through Building Performance Institute (BPI Building Analyst) and RESNET (HERS rater).
What We Do
Home Energy Assessments
Comprehensive diagnostics to understand how your home uses — and loses — energy.
In partnership with GV-HEAT and Energy Smart Colorado.
Weatherization Work
Air sealing, insulation improvements, and targeted upgrades based on measured performance — not guesswork.
Code-Compliant Testing
(New Construction)
Blower door testing (infiltration testing)
Duct leakage testing
Thermal imaging
HERS / ERI Energy Rating
Certified ratings through RESNET for builders needing an Energy Rating Index (ERI) score.
DOE Efficient New Homes Program
Verification and testing aligned with DOE Efficient New Homes Program (Formerly ZEHR)
Building Science Consulting
Clear, science-based guidance for homeowners, builders, architects, and engineers.
Who We serve
Builders, architects, engineers, and homeowners seeking building science insight.
Our goal is simple:
Help you understand your building — and improve it.
Over two decades in construction and weatherization
One of the only local providers offering both field diagnostics and energy modeling
Independent — we don’t build, we analyze
Quantifiable findings and measurable improvements
We work in crawlspaces and attics. Mobile homes and mansions.
If there’s a problem hiding in the building envelope, we’ll find it.
Why Little Foot?
RESOURCES
about
Andy Tocke
Owner of Little Foot Building and Little Foot Building Analyst since 2007
Andy Tocke as a certified BPI Building Analyst since 2008 and HERS rater since 2023 provides home energy assessments, HERS ratings and other building science consulting services. He also does weatherization work on existing houses.
He has been supporting home energy assessments and weatherization programs in the Upper Gunnison River Basin since 2011.
Andy is passionate about reducing the impact of the built environment, making houses more comfortable, more durable, healthier, and saving people money.
You can find him petting his cats and smiling in Gunnison.
our values
Lifelong learning
Improving the built environment
Reducing environmental impact — on the earth, our health, and your pocketbook
our strengths
Diagnostics
Quantifiable data
Certification
Experience