2016 EBSCO Research Best Pick


2nd year as a Best Pick

  • A-Rated
  • Verified License(s)
  • Verified General Liability
  • Verified Workers' Comp

"Comfenergy begins every interaction with a full evaluation of the home, including blower door testing and thermal imaging. This evaluation allows the homeowner to see the invisible causes of their discomfort and high energy bills. We provide solutions, not just insulation."

Justin Dobson | Co-owner

Areas Served:

Prince William, Fairfax County, Loudoun County, Arlington County

  • Services Offered
    Comfenergy installs all types of insulation, including cellulose, fiberglass, spray foam, and foam board in crawl spaces, attics, floors, and walls. The company also offers duct cleaning and repair, air sealing, window replacement, mold remediation, moisture control, and home comfort and energy evaluation services.
  • Services Not Offered
    Comfenergy does not offer emergency water cleanup services.
  • Warranty
    The company offers a one-year workmanship warranty.
  • Awards & Certifications
    Comfenergy was a finalist in 2014 and 2015 for the Loudoun County Chamber of Commerce's Service of the Year Award and in 2014 for the Entrepreneur of the Year Award.
  • Organizations
    The company is a member the Loudoun County Chamber of Commerce.
  • Licenses

Select Quotes from Customer Interviews

A selection of 70 homeowner reviews:


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I remember using them. We had them do some spray insulation in our garage area. We had some issues with freezing pipes above the garage—we had two burst in three years. They came in and confirmed some of our thoughts and concerns about the lack of insulation and the areas where we had issues. They came up with a game plan for how to execute it and correct it, and in a couple of months, they were completed. I would grade them an A+.
They were very responsive. They just put insulation in my attic after we had a pipe freeze—that's supposed to cure that problem. They were just very responsive; if you had a question, they would respond to it and answer right away. They're grade-A.
It was very good. They were one of the only companies that I could find to do the actual work. It was great. We had insulation put under a bay window. He showed us how he did it, and when he came, that's exactly what he did. I would grade them an A.
They were easy to work with, and they were fine. They installed insulation in my walls. My contractor dealt with them mostly, but everything was fine on my end. They get an A.
They were very professional—everyone that was here was professional, and they did a great job. I appreciated everything. They insulated a crawl space that had been giving me problems; it made a huge difference this summer, and I'm hoping it will make a big difference this winter. I would grade them an A.
They did the attic, and they were professional. I would rate them as an A.
They insulated kitchen pipes for me. We decided on what we needed based on what was happening in my kitchen—the walls had exposure to the outside, so we were able to assess what we needed. They were able to determine it, and they pumped insulation into my drywall. I just had a good experience with their technician. I got more quotes, but I thought they were more professional. I would give them an A. They were very professional, and the crew was accommodating.
Comfenergy was excellent. They insulated a crawl space and an attic, and the servicemen were courteous and very professional. The gentleman who had the sales information was absolutely perfect. It was a great experience all the way around. I would rate them as an A+ company.
They were very, very good and very professional. They checked in with us many times because it was a very large, complicated job. We'd discovered a huge leak in one of our walls; all three floors had mold, and the studs had rotted. Our main contractor found Comfenergy because they were willing to do a smaller insulation job that a lot of other companies weren't going to bother with. It was a nightmare, but they were great—A+.
They upgraded the insulation in the entire house, and they did an audit. They were very comprehensive. I'd give them an A+.

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