45714 Oakbrook Ct #180
Sterling, VA 20166
Mon-Fri 7:00am-5:00pm
In business since 2010

Comfenergy is the locally owned and authorized Dr. Energy Saver dealer serving the entire region of Northern Virginia. Originally started as an Insurance Restoration and Indoor Air Quality business in 2003, Comfenergy decided to expand their services to include solutions that actually address mold and air quality problems. Why provide a clean-up service for mold or moisture build-up when the problem isn't actually being addressed? Comfenergy provides professional home improvement services that are specifically designed to improve the energy efficiency, health and comfort of the home.

Available Services by Comfenergy:

  • Energy audit - A thorough examination of your entire home along with a prioritized list of the most cost effective solutions for your building.
  • Home insulation - Attics, basements, crawl spaces, garages, walls and more!
  • Insulation Materials - Spray foam, injection foam, radiant barriers, cellulose, fiberglass, rockwool, wall injection foam and more!
  • Air sealing - Caulking cracks and gaps all around the home from wiring penetrations to gaps around window and door trim.
  • - Solar, electric, gas, oil and tankless (repair, replace, and install).
  • Ductwork - Ductwork sealing and repair services.
  • Free estimates! - Receive a free estimate for any of our home energy saving services.

Comfenergy will start the job with a comprehensive home energy audit, where home energy weaknesses are accurately located and identified. This thorough examination also provides each homeowner with a prioritized list of the most cost-effective solutions to apply to the home. Why insulate the garage if your building is losing most of it's energy through the attic? Comfenergy brings that logical and straightforward approach to your home... and best of all, they let you decide which solutions you want applied to your own home. There's no applied pressure, just actual knowledge.

Don't let your family home or business building suffer from comfort problems any longer, Comfenergy can help! They provide all of their home improvement services to residential and commercial property owners all throughout West and Northern Virginia, including Great Falls, McLean, Vienna, Dunn Loring, Ashburn, Herndon, Reston, Sterling, Bethesda, MD, Manassas, Arlington, Woodbridge, Fairfax, Springfield, and nearby. Get started today with a free estimate to see how great their solutions can be to your home!

Offer details

FREE R-Value Upgrade Special!!!
By BRUCE D.
"EXCELLENT SERVICE.. WOULD RECOMMEND YOU ALL TO ANY AND ALL!"
By Ruth M.
"Was very happy with the results.Have forwarded all the information to my daughter as she has..."
By Steve H.
By Peter H.
Leanne P.
Ashburn, VA
I contacted Justin because our first floor master bedroom was extremely hot during the summer and very cold in the winter. When Justin came out, he did a...
Andrew A.
Ashburn, VA
I appreciated the time spent showing me the work and explaining what was going to be done.
David O.
Ashburn, VA
Salesperson went over everything crew would do.
Comfenergy Before & After
  • Ashburn VA- Condensation On Ducts
    Before
    Ashburn VA- Condensation On Ducts
    After

    Ashburn VA- Condensation On Ducts

    The customer called s because they had a condensation problem with the ducts in their 1st floor town house family room.  This home, typical of many town homes in Ashburn, with a 2 car garage to the front of the home, and a family room tucked behind it. 

    The problem was a clear air pathway from the space over the garage to the cold ducts in the ceiling above the family room.  We had to seal the rim joist to the exterior, and create an air barrier with silverglo foam block between the garage and the family room. 

    The results were instantaneous, and this Ashburn home owner now has a house that is air sealed and does not sweat.

  • Frozen Pipes in Ashburn, VA
    Before
    Frozen Pipes in Ashburn, VA
    After

    Frozen Pipes in Ashburn, VA

     The homeowner in Ashburn called,  as last year their pipes froze and they did not want that to happy again.This home i has always had issues with hot and cold spots, and freezing pipes in the winter.  We found cold air in the master bedroom attic to be getting around the batt insulation leading to the bathroom above.  This entire neighborhood of as notorious drafts and hot/cold spots. These homes have also dealt with many frozen water lines. The water lines were freezing almost 20 feet from the exterior of the home! Comfenergy installed 4" thick SilverGlo foam boards with heat reflective barrier on the attic walls.  

    Problem solved!!!  Foam board insulation in an attic keeps the cold air from travelling beneath the bathroom tub and the pipes from freezing.

    The homeowner will be more comfortable in the Summer and Winter.....but it lessened the draftiness of the home, and the pipes don't freeze any more!!!  

  • Spray Foam Garage Ceiling-Ashburn, VA
    Before
    Spray Foam Garage Ceiling-Ashburn, VA
    After

    Spray Foam Garage Ceiling-Ashburn, VA

    This Ashburn, VA had rooms over the garage that were too hot in the summer.  This is can often be caused by fiberglass batts installed by the builder in the ceiling of the garage.  They fall away from the sub-flooring depleting all thermal insulating value.  This customer decided to remove the entire garage ceiling and use closed cell spray foam to fix the problem.

  • Attic Insulation in Sterling, VA
    Before
    Attic Insulation in Sterling, VA
    After

    Attic Insulation in Sterling, VA

    A homeowner in Sterling, VA called as their house was hot in the summer and cold in the winter and wanted to make their home more comfortable all year.   We air sealed the attic floor with one part foam spray, then installed attic decking on the floor with plywood. We created plywood "dams" to keep the future cellulose insulation in place and off of the attic floor decking.  Finally, we created an attic hatch cover that was made o 4" thick SilverGlo foam boards, and blew in TruSoft cellulose insulation throughout.  The result the homeowmer will be warmer in the winter and cooler in the summer. 

Best of Loudoun - 2019

Best of Loudoun - 2019

2018 Superior Service Business of the Year

2018 Superior Service Business of the Year

Best Picks 2019

Best Picks 2019

Carl Depner

Certified Comfort & Energy Consultant

Corey Hatcher

Certified Comfort & Energy Consultant

Matt Pascual

Certified Comfort & Energy Consultant

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