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12 Years of Replacement Window Knowledge in 8 Minutes

Season 1 - Episode 20
November 13, 2023

I am a Certified Energy Auditor in Maryland.  I have had several revelations over the past several years, and this important one is about replacement windows. I am a contractor and a homeowner who fixates on personal comfort in my living space.

I like to share my experiences with home comfort and remodeling so that you can make decisions that are light years ahead of my own!

Despite my initial belief that replacing windows and HVAC systems would improve home comfort and energy efficiency, these changes did not yield the expected results.

In 2012, I noticed that several window companies in my area were being fined for falsely advertising energy savings.

My first big realization came when I learned that windows accounted for only 10 percent of a home's air leakage during my Energy Auditor certification in 2017.

I became a home energy auditor and conducted an audit in 2018 where the homeowner believed drafty windows were the issue. However, the blower door test revealed that the windows were not the primary source of air leakage.

Considering a comprehensive energy assessment before investing in window replacements would be best.

00:00 Home Comfort Starts with Listening to This Story
00:27 New House & New Window Replacement Job
00:46 My Own Comfort Journey Was Long
02:11 Replacement Windows Were Not the Answer
03:36 Building Science is the REAL DEAL
04:41 She Swore Her Windows Were the Issue
06:51 Everything You Need to Know About Replacement Windows

If you would like to learn more about my home performance company or get in touch, please visit or

Unlock Your Home's Full Potential - Hometrust Remodeling, Your Trusted Partner in Maryland Home Performance

If you are looking to join a growing community of energy auditors, please visit our Facebook Group:

Do you have a question for Eric? Contact me directly I am here to help.

Thanks for stopping by

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Building Performance Institute Certified
Building Performance Institute
Eric Gans
Building Analyst
Envelope Professional
BGE Approved Energy Contractor
Pepco Approved Energy Contractor

Helping You!

*Improve home comfort
Educate you about your home
*Find air leakage in your home
*Improve energy efficiency
*Use science for solutions
*Assess your building's shell
*Help prioritize improvements
*Find the root causes
*Assess insulation levels
*Measure indoor air quality
*Evaluate windows & doors
*Evaluate attic ventilation

The Big Secret About Replacement Windows 

Considering New Windows?

It took me 12 years
to figure this one out...


    Specialized Maryland Contractor


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    Our mission is to help Maryland homeowners create a more comfortable home and save energy. We achieve this by applying building science principles and modern air sealing and insulating techniques.

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