Comfenergy
• Certified Best Pick • Certified Best Pick
Best Pick Reports

Comfenergy

Insulation

Certified Pro
703-651-1843
Licensed & Insured
12th year as a Best Pick

Hours of Operation

Monday8:00 am - 5:00 pm
Tuesday8:00 am - 5:00 pm
Wednesday8:00 am - 5:00 pm
Thursday8:00 am - 5:00 pm
Friday8:00 am - 5:00 pm
SaturdayClosed
SundayClosed

Business Address

45714 Oakbrook Drive #180

Sterling, VA 20166

Company Details

Services Offered

  • Air Leak Sealing
  • Insulation Removal
  • Spray Foam Insulation
  • Blown-In Insulation
  • Fiberglass Insulation
  • Crawl Space Encapsulation
  • Duct Cleaning
  • Radiant Barrier
  • Cellulose Insulation
  • Batt Insulation

Services Not Offered

Comfenergy does not offer emergency water cleanup services.

Minimum Job

Not specified

Warranty

  • Lifetime warranty on materials and labor

Additional Information

Comfenergy is part of the Basement Systems and CleanSpace dealer networks.

Employee Information

  • Drive marked vehicles
  • Wear uniforms

Insurance Coverage

General Liability Insurance

Workers' Compensation Insurance

Company History

Comfenergy was started in 2010.

Distinctions

  • Dr. Energy Saver's number one dealer for total sales in 2019-2020
  • Finalist for the chamber's 2018 Superior Service Business of the Year
  • Member of the Loudoun County Chamber of Commerce
  • Named the chamber's 2019 Small Business of the Year

About this company

"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

License

2705151837

Ratings & Reviews

Compiled Score:

Comfenergy has received 4.8 out of 5 stars based on 235 customer reviews. Learn about Our Research Process.

5
220
4
5
3
1
2
2
1
7
Jennifer Crider

Jennifer Crider

6 months ago

We chose this company based on some coworkers recommendations (I am a licensed realtor of 20 years in this area) and the crew went above and beyond expectations. Final product (new attic insulation) replaced what was most likely original insulation, is now to code for our county and will pass any home inspection. I had quite a lesson on attics from this company and learned a lot during the process. We also want to give a special shout out and thank you to Carlos on the install team. He noticed some electrical items that needed to be addressed in the attic before new insulation went in, otherwise we would not have known. I was able to bring in a licensed electrician to get the work done. Thank you Carlos!!

Verified Google Review
Scott Corley

Scott Corley

2 months ago

We contracted with Comfenergy for insulation removal, air-sealing, and new insulation at a historic hotel renovation we are managing while the building remains occupied. Access was difficult and we had to protect finished areas and Guests below. Their crews showed up consistently, worked clean, coordinated with other trades, and stayed on schedule. They installed an attic catwalk system, sealed penetrations properly, and completed the work without disrupting the hotel's operations. We had zero issues during the project and the Owners are extremely satisfied with the results. I would absolutely hire them again for future projects.

Verified Google Review
Saran Ahluwalia

Saran Ahluwalia

11 months ago

Melvin and his phenomenal team air-sealed and insulated my entire attic assembly - including R60 on both flat and sloped surfaces. The team also encapsulated the duct system and applied a radiant barrier. I am already noticing considerable changes in ambient temperature and air circulation on the top floor, as well as in certain rooms. I also want to thank Jason for the thorough review and discussion of options and for describing the costs and benefits of each solution. I learned a lot in the process. I look forward to further improvements with this team. Thanks again.

Verified Google Review
Kim Ward

Kim Ward

3 months ago

We had Comfenergy install new attic insulation and insulate some in our basement. They were very thorough when walking through our home for the estimate. We received a detailed proposal and even steps we could take on our own to make our home more energy efficient. The work crew arrived on time, were friendly and professional, explained everything and showed us the work in progress and once complete. We're pleased with the results, as our home is much more comfortable now.

Verified Google Review
Jeffrey Morgan

Jeffrey Morgan

2 months ago

Plenty of other companies will do the same quality work — don’t use Comfenergy. After signing the contract, communication becomes difficult. Expect to chase them for answers if you have questions. You’ll get passed around a few times before they stop responding altogether. If your project is simple and you don’t need anything after payment, you might be fine, the installers will do the work correctly, but I recommend using someone else.

Verified Google Review

Service Area

Comfenergy serves 65 cities in the Northern Virginia area.

Loading map...

Cities Served

Aldie, Alexandria, Annandale, Arlington, Ashburn, Bealeton, Bluemont, Bristow, Broad Run, Burke, Catharpin, Catlett, Centreville, Chantilly, Clifton, Delaplane, Dumfries, Dunn Loring, Fairfax, Fairfax Station, Falls Church, Fort Belvoir, Fort Myer, Gainesville, Goldvein, Great Falls, Greenway, Hamilton, Haymarket, Herndon, Hume, Leesburg, Lorton, Lovettsville, Manassas, Markham, Marshall, Mc Lean, Merrifield, Middleburg, Midland, Mount Vernon, Newington, Nokesville, Oakton, Occoquan, Orlean, Paeonian Springs, Philomont, Purcellville, Quantico, Rectortown, Remington, Reston, Round Hill, Springfield, Sterling, Sumerduck, The Plains, Upperville, Vienna, Warrenton, Waterford, West Mclean, Woodbridge

Comfenergy FAQ

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 and exterior door replacement, mold remediation, moisture control, home comfort and energy services, and basement waterproofing. Please note that Comfenergy does not offer emergency water cleanup services.

Services