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5928 N Paulina St
Chicago, IL, 60660
United States


Quality control for home improvement and new home building, plus building forensics for solving virtually any home performance problems. Nothing can hide from advanced diagnostics in residential construction, and you should never have to guess or assume that home improvements worked- proof is possible. Ask for it.


Stop Guessing. Proof Is Possible.

Grace and Corbett Lunsford founded the Building Performance Workshop to help homeowners get the advice, scientific testing, and home improvement consulting they need. As an independent verifier of home performance through testing the envelope and HVAC systems, all things in a home can be proven. Proof Is Possible- ask for it.

Want to know how to prioritize improvements in a home or prove that a new or improved home will perform better? I'm Corbett Lunsford, and I help my clients understand home performance so it can be easily used to prove home improvement and home construction actually WORKS.

NOTHING CAN HIDE IN A HOME'S CONSTRUCTION NOWADAYS. The testing equipment and techniques are so advanced that we can help you solve any problem you have, in any type of home, new or old, anywhere in the country.

Home improvements and new home construction are testable and measurable. Never assume plans are rock solid or work was done perfectly- PROVE IT.

I've helped hundreds of clients get control of their homes, and trained hundreds of building pros to earn more money doing better work for their own happier clients. I love sharing the secrets of tuning a home's performance- get in touch, and you'll actually get ahold of me personally.

Since I specialize in building forensics, you can count on accurate results. Since I remember what it's like to have tons of questions, you can count on clear explanations. And since I don't sell other products, you can count on unbiased advice.