Energy Efficiency Experts
2nd year as a Best Pick
certified company
Based on 68 reviews
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2nd year as a Best Pick Call
"We are problem solvers; our whole-house approach focuses on identifying and solving issues to make your home more comfortable and efficient."

Pascale Maslin | Owner
Company Information
Services Offered
Energy Efficiency Experts provides residential energy audits and follow-up retrofit services, such as attic and crawl space insulation, ventilation, and sealing; whole-house sealing; and duct sealing. The company also processes paperwork for rebates that are available to Maryland and DC homeowners who choose these energy upgrades.
The company provides a customer satisfaction guarantee and honors manufacturers' warranties.
Company History
Energy Efficiency Experts is a local, woman-owned, family-owned-and-operated company that has served the DC metro area since 2007.
The company hires Building Performance Institute (BPI) trained technicians. Energy Efficiency Experts is also a member of the Greater Bethesda Chamber of Commerce as well as a participant in the Home Performance with ENERGY STAR program.
Areas Served
Montgomery, Howard, Prince George's
A selection of 68 homeowner reviews:
“Energy Efficiency Experts was excellent, and we're very satisfied with their work. They were professional and efficient. The report was excellent, and we would recommend them to anybody. They did the energy audit, and when we do need some insulation done, we will not look for any other company, because we know this will be done right. We really have confidence in them.”
“They are very good and very efficient. They do what they say they will do and deliver. The people are friendly, nice, thorough, and professional. I'd grade them as an A+.”
“They were very responsive, and I think they did a good job. They did energy auditing and insulation work. I'd give Energy Efficiency Experts an A rating.”
“They were very thorough and knowledgeable. They did a home energy audit. They were A+. I would gladly recommend them.”
“Pascale and her assistant were very nice and thorough. They did an energy audit, but they have not done the insulation work yet. They deserve an A+. I have already recommended them.”
“They returned my call quickly, were very friendly, and answered all my questions. They're coming this afternoon actually. They only did the audit, and now we're discussing them doing the insulation work for me. They get an A from me.”
“They were just very efficient and very informative. They did an energy audit for me. I'd give them an A.”
“I liked their efficiency. Energy Efficiency Experts did the energy audit for me. I'd grade them as an A.”
“It was a fine experience. Overall, they seemed very knowledgeable. They were pretty clear about when they were coming over and showed up on time. They did an energy audit. I'd give them an A rating. The assessment seemed fine.”
“They did the energy audit for me, and I felt it was useful. I guess they were an A. They are coming on Monday to do the insulation work.”
“The woman who ran it seems nice and competent. I had no issues. They just did energy auditing for me.”
“Energy Efficiency Experts just came in and did what they were supposed to do. They answered any questions I asked. They just did the energy audit. I had no complaints.”
“They did both energy auditing and insulation for us. It was A+ work.”
“It was fine. It was a good experience. I'd grade Energy Efficiency Experts as an A. They did an energy audit and insulation.”
“They came on time, and they were very clear about what it was going to cost. They filed the paperwork to get our rebates. They did an energy audit, and they did weatherization. I'd give Energy Efficiency Experts an A.”
“I didn't have any issues with them. It seemed like they were fairly comprehensive and complete with their audit of the systems in the house. I would say they are an A.”
“They just did energy audit, and I felt it was helpful. I had my own expectations of what the service would provide, and I think they just about met those.”
“I definitely had a positive experience. They provided useful information, and they helped us figure out what work we could do to make our home more energy efficient. They just did the energy audit for us. They forgot to turn the hot water back on when they left. I'm glad I did it, but I have nothing to compare to because I've never done anything like that with any other firm. I have no idea how they compare to other companies. I think the tips they gave us helped out. It will be interesting to see whether our electric bill is lower in the summer with air conditioning and so on, because a big part of the work was to improve insulation. We haven't had the air conditioner running for a long enough period of time that, in terms of the electric bill, we get to be able to evaluate that.”
“They came in, figured out where I had issues, and resolved them. They did both audit and insulation work for me.”
“They came and did an energy audit for us. They did great work. They were very detailed and very scientific in their approach. They were personable. I'd give them A+ rating. I would highly recommend them.”
“Energy Efficiency Experts is an A+ company. They did an energy audit for me.”
“The number one thing that I liked was that they were very thorough. I guess that should come with an energy audit, but these guys were very thorough to the level that I was impressed. They did an energy audit and insulation. I'd give them an A; I was very satisfied.”
“The owner is easy to talk with and very personable. She really brought a lot of integrity and went out of her way to explain exactly what they were going to do and why. When I got the results of the auditing, she was able to really explain it in a way that I understood just what was going on with my house. She then provided me with solutions for dealing with it. They did both audit and insulation work for me. They get an A+ from me.”
“Energy Efficiency Experts was great, and I liked everything about their service. The thing that stood out for me was their efficiency. The two young men were wonderful; they did everything. One went up into my attic and gave me a report of that. I was very, very satisfied. Energy Efficiency Experts earned an A.”
“I like that they were knowledgeable and explained different options in terms of improving the efficiency of the house. First, they determined what the heat loss was in the different sections of the house. And then they made recommendations on how to improve that. Then they came out and did the work. I would give them an A. They were excellent. They did a good job sealing any air gaps; they had to remove suspended ceiling panels throughout, and everything was done very neatly.”
“Energy Efficiency Experts did a good job. They were very thorough. They came when they said they would, and they did everything they said they would. They followed up, and they gave me a report. It was energy auditing. I'd give them an A+ grade.”
“They're great. They came in, and they were very quick and thorough. They explained things, and they were fine. They did a blower door test, and they looked at everything. There wasn't that much interaction. They explained what the results were, and they gave me a printout. I'd give them an A+; I'm a customer, and they provided a service. They were great.”
“They just came out quickly, did the work quickly, and produced a good report. They also did some insulation work for me. I'd give them an A grade. They had a contractor come out, and they took care of all of that. They were here when the insulation work was being done.”
“I liked that Energy Efficiency Experts sealed all the leaks that I had, and I liked their recommendations. They did both energy audit and insulation work. I'd grade them as an A.”