4.2 
22 *The Angi rating for Energy Efficiency Auditing companies in Windsor Mill, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.
*The HomeAdvisor rating for Energy Efficiency Auditing companies in Windsor Mill, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.
Last update on May 12, 2026
Serving Windsor Mill, MD and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
"He's a good guy. He was nice, professional and went above and beyond."
+5
Serving Windsor Mill, MD and surrounding areas
Approved
Warranties offered
Small jobs welcome
Credit card accepted
"Very professional very good work"
+10
Serving Windsor Mill, MD and surrounding areas
Approved
In business since 2007
Free estimates
Credit card accepted
Elysian Energy, LLC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 50 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today! \n \n
Serving Windsor Mill, MD and surrounding areas
In business since 2010
Warranties offered
Credit card accepted
"Mohammed handled our project—sealing and insulating our attic. He was very knowledgeable about the best way to accomplish the task in an older home such as ours; and he also ensured that our project qualified for relevant energy rebates. He was professional and courteous in answering all our questions and completed the project in one day. We highly recommend HESS and Mohammed El-Goul."
+1
Serving Windsor Mill, MD and surrounding areas
In business since 2004
Free estimates
Emergency services offered
"The Energy audit crew were punctual. They expected time of the audit was within the time frame that they quoted. I received a overall evaluation and list of things of suggested that would help to improve the overall energy efficiency of my home along with rebates."
+1
Serving Windsor Mill, MD and surrounding areas
In business since 2009
Free estimates
Warranties offered
"Atlas Home Energy performed an energy audit in my home, and based on the findings corrected all issues over a four day course. Their workmanship is flawless and their employees are pleasant and courteous. The bulk of their charge was reimbursed by BGE and my energy cost has declined. I recommend them highly"
+16
Serving Windsor Mill, MD and surrounding areas
In business since 2020
Free estimates
Credit card accepted
"Brian came out to perform an energy audit on my home. He arrived on time, was respectful of my home and showed me where my insulation was missing with his infrared camera! His report came two days later as promised with a reasonable quote."
+8
Serving Windsor Mill, MD and surrounding areas
In business since 1998
Free estimates
Emergency services offered
"Wonderful, it was a very quick and easy process. Brian talked us through it and in no time we had a 3KW system mounted on a frame in the garden and the invertor installed in the basement. Brian talked us through working with our power company to get the system checked and approved and we now get credits from the power company for power we provide to the grid. In addition we are set up to get Solar Renewable Energy Credits (SRECs) payments for providing clean energy. We also got a free Energy Audit which helped locate some problems areas we were able to fix. The system has basically cut our energy costs in half. I have hesitation in recommending them to anyone interested in solar energy."
+14
Serving Windsor Mill, MD and surrounding areas
In business since 2017
Free estimates
Emergency services offered
"Trevor was highly informative and guided me through the process. I HIGHLY recommend using him if you are th inking of solar....Great tax advantage."
+25
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