eZing performed a full home energy audit for us including blower door, smoke tests, etc for a 85+ year old home we’d purchased last summer.  I wish we’d had eZing do our home inspection when we bought the home too! They were thorough in the extreme. When we first scheduled, my other half and I argued whether the price was worth it, but afterwards both of us were convinced that for the amount of work performed, the results, and the general service we received, the price was a bargain.

Jim L.


Dear Cheryl,   Seasons greetings :)    Just wanted to let you know that we have implemented 99% of the suggestions in your report and I cannot believe what a difference it has made in the comfort level of our home.  Turns out our kitchen doesn’t need supplemental heating after all — we just needed to “plug all the holes.”  Thank you.  I especially thought I should share my pleasure with your work since I was such a skeptic.

Anita I. (in an unsolicited email)


eZing performed a door blower test; scanned the walls of the house to see what areas were not insulated; used a puffer around doors, windows, outlets, canned lights, bath fans, roof soffit, etc. to examine air leakage. They performed many more tasks than I can recall at this moment.  Cheryl and her assistant, Henry who’s an engineer, did an excellent job! At first, I thought the price was a little high, compare to other companies I called. But I was told the price was based on the square footage of the house. Cheryl and Henry set up the door blower and examined every nook and cranny of the house. They spent literally the entire day testing and examining. Then Cheryl came back later at night to discuss the preliminary report. She later emailed a completed report. I was impressed with the amount of time they spent in the house and in the report, and I was very happy I chose them over the other 2 companies I called. I don’t know if the other 2 companies would have spent as much time as Cheryl and Henry did. I felt we really got more than our money’s worth. In fact, I was so pleased with their work that I hired them to oversee the air sealing and insulation work to improve our energy efficiency. Cheryl truly knows what she is talking about. Don’t let her gender fool you. She is an experienced carpenter by trade who has also completed a Ph.D. in anthropology. She speaks like a professor but works like a blue collar worker who’s not afraid of getting dirty. You can tell she really loves what she does.

Pedro G.


I highly recommend eZing. John and Cheryl came to our old, drafty house and spent the better part of the day thoroughly evaluating the energy (in)efficiency of our home, from attic to basement and every crawlspace in between. They have a ton of experience and use all of it to do their job. They performed a blower door air leakage test, went around with an infrared camera, and used another device to detect air leaks throughout the house. They mark the air leaks with color-coded tape for reference. They also evaluated our boiler, doors, windows, etc. At the end of the day they compiled a very comprehensive report including charts, measures, recommendations and an action plan. After they compiled their report they reviewed it with us. They even sketched out a complicated insulation scenario and faxed it to us later. They provide a list of recommended contractors for services (no kickbacks, just solid, reliable companies.) We contacted several for insulation estimates, and ended up going with one of their recommendations. When the contractors came out to give us estimates, we showed them the concise action plan provided to us by eZing. The action plan was a great tool to use to communicate with the contractors. After we got the estimates we sent them back to John and Cheryl for review. The insulation contractors we went with did a great job. They also performed a before and after blower door air leakage test. We realized a large reduction in air leakage – almost 50% – from insulation alone. We couldn’t be happier with the results. I highly recommend hiring eZing.

Julie B.


eZing did energy efficiency auditing for the whole house.  They were excellent.  They surveyed on July 22nd.  They were very thorough and very detailed.  They were extremely professional.  They train the trainers so we were very pleased when we went with them.  You can get other people that might have taken a three hour class but this was a couple and they were here for hours.  They were very knowledgeable.  You get what you pay for.

David S.


The eZing team was excellent. Absolutely no stone was left unturned, and Cheryl made sure that I understood what the various parts of the (extremely comprehensive!!) report meant. She also went over several particular trouble spots with me, and even showed me how I could make some of the fixes myself. When she was done, Cheryl showed me a list of contractors that I might want to call to ask about having necessary work done. And this was an important bit for me — some other energy audit companies also provide insulation or other services themselves. On the one hand, this type of “one-stop shop” is really convenient, but I wondered if I’d be questioning their objectivity. With eZing, they have no relationships with contractors, and make it clear that the lists they provide are simply a service, and encourage you to search outside that list if you wish. I am extremely glad that we decided to do an energy audit, and that we went with eZing. We had been trying fix after fix to try to increase the efficiency of our heating and cooling, but we never really knew what we were doing… Just by telling us what would and would not help, eZing already saved us as much money as we would have spent trying our next fix, and I have every confidence in their objective analysis of our house’s needs. I can’t recommend this process or this company highly enough!

Sarah, Chicago


We recently had a comprehensive home energy audit performed by eZing. After evaluating a variety of vendors, eZing had the best and most comprehensive approach for evaluating our home energy efficiency as well as diagnosing problem areas where cold pockets and drafts make life unpleasant. The audit was performed in a highly professional manner and was thorough and comprehensive. The report was clear and easy to understand even for people without construction experience. Like many things in life, you get what you pay for, and the eZing audit delivered value far beyond what they charged. I would highly recommend eZing.