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Beyond Energy LLC: Giving Homeowners Answers

Home Energy Expertise

When Tim Guillama worked as a general contractor, he kept encountering questions about homes that people answered with hearsay. He wanted to understand why buildings performed the way they did and give homeowners something more useful than an educated guess. That curiosity led him to study building science, home energy ratings and inspections. It also led to Beyond Energy LLC, the Waukesha business that marked its 20th anniversary in 2026.

Today, Tim helps families make informed decisions about one of their largest investments. His commitment to homeowners and willingness to train other professionals earned Beyond Energy a 2026 Energy Efficiency Excellence Award.

Beyond Energy combines home inspections and energy assessments with education. The goal is to help customers understand the issues affecting their homes and what they can do about them, whether they are preparing to buy a house or caring for one they already own.

Tim brings several qualifications to that work, including registration as a Wisconsin home inspector and certification as a home energy rater. He follows inspection standards from the Building Performance Institute and Residential Energy Services Network, giving his work a consistent foundation.

For homeowners, that care means guidance grounded in how a home actually performs. It can help them understand opportunities to improve comfort and reduce wasted energy while keeping safety in view. For families weighing repairs against other expenses, understanding the problem is an important first step toward deciding what comes next.

His experience helping others extends beyond Wisconsin. Through mission trips to Nicaragua, Guatemala and Puerto Rico, Tim has helped build homes and schools.

Tim working on a blower door

Putting Training to Work

Focus on Energy has supported Tim’s growth through training and opportunities to develop his business. That relationship has helped him continue building the knowledge he shares with customers.

“The support that I've received from the program has been invaluable,” Tim said.

Now he is helping other inspectors develop their skills. Focus on Energy’s Rating Field Inspector training requires participants to work with a certified rater as a mentor. Tim stepped into that role, helping two inspectors complete the program in 2025 and beginning to mentor a third.

Mentoring gives new inspectors access to an experienced professional as they learn. For Tim, it is a way to share knowledge gained over more than two decades of conducting home performance audits.

Reaching More Homes

At the award ceremony, Jolene Sheil of the Public Service Commission of Wisconsin emphasized the people behind energy efficiency.

“Wisconsin also needs experienced professionals who follow high standards and provide clear information and share their knowledge with others,” Sheil said.

Her point explains why training matters to families who may never meet Tim. Each inspector he mentors can carry that knowledge into other homes, helping more people understand their options and take care of the places they live.

“Sharing that experience expands access to qualified professionals and reliable guidance,” Sheil said.

Tim’s search for better answers began with his own questions. By helping homeowners and teaching others, he is making those answers available to more Wisconsin families.

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