certified company
Based on 68 reviews
Our Certification Process
Best Pick Guarantee
Verified License(s)
Verified General Liability Ins.
Verified Workers' Comp
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 insulation services, including air leak sealing, insulation removal and retrofitting, attic insulation and ventilation, and crawl space encapsulation. The company offers spray foam, cellulose, blown-in, and fiberglass batt insulation and radiant barriers. Energy Efficiency Experts also performs home energy audits, duct cleaning and repair, and Aeroseal duct sealing.
Minimum Job
A $2,000 minimum is required.
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 trained technicians and is a Greater Bethesda Chamber of Commerce member and a Home Performance with ENERGY STAR program participant.
MHIC #130200
Areas Served
Montgomery, Howard, Prince George's
A selection of 68 homeowner reviews:
“Energy Efficiency Experts was definitely an A+. They did an energy audit and insulation work. They were very thorough—it was impressive to me. The report that they gave me was specific and very detailed, and their overall approach to the work was highly professional.”
“They were fantastic. I've already recommended them to my neighbors, and they've used them. They did insulation and an audit for me. I would give Energy Efficiency Experts an A+ rating.”
“I definitely had a positive experience with them. They were punctual, and they explained everything in very good detail. They did some insulation work for me. I can honestly say I noticed the difference after they did the work. I'd rate them as an A+. I have recommended them.”
“They were very knowledgeable and worked with my schedule well. They did a good job as far as I know. They did attic insulation and put an exhaust fan on the roof. I'd give them an A grade.”
“They did what they said they were going to do. They were very pleasant to work with, and what they did is working very well. They did a bunch of insulation work and some venting.”
“They were very good. They were very pleasant and efficient. They got the work done in a short amount of time. I have no complaints. They just did insulation for me. I'd rate them as an A.”
“They came to install an attic fan. A few months ago, they did the audit and insulation work. I'd rate them as an A. The work they did was in the attic, and they said they would take pictures. I didn't actually get pictures that showed a clear image of everything they did, but I trust them. They did a great job. I can't imagine that they did a poor job. I'm waiting for customer service to answer one question that I had, and it's been a week. They were right on time. I would definitely recommend Energy Efficiency Experts.”
“They explained what they were going to do and why they were doing it, so I felt I had a pretty good understanding of what we were looking for. They did both energy audit and insulation work. They deserve an A. The work seems pretty good. They were very positive, and they were punctual. I had no problems.”
“They were very detailed oriented, and they did what they said they were going to do. They did energy audit and insulation work. I'd grade them as an A. We have already recommended them.”
“They were fine. They did a fine job, and I have no complaints—A.”