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Products & Services

Insulation Services
Spray Foam Insulation
Attic Insulation
Super Attic System
Blown-In Insulation

Types of Home Insulation

Basement Insulation
Crawl Space Insulation
Garage Insulation
Wall Insulation

Air Sealing Services
Blower Door Test
Weatherization

Additional Services
Ductwork Solutions
Soundproofing
Home Energy Audit
Replacement Windows
Replacement Doors
Interior Window Inserts
Aspen Air Purifier

Before and After Pictures from Leesburg
Duct Work Attic Insulation Leesburg VA

Duct Work Attic Insulation Leesburg VA

Before After
Duct Work Attic Insulation Leesburg VA Duct Work Attic Insulation Leesburg VA

Customer called us with a poorly insulated space above their garage. Our certified home energy sales pro, Jonathan, visited the home where he devised a plan that would include properly insulating the space above the garage along with Spray Foam for the ducts. Here is the before and after.

Fiberglass versus Spray Foam-Leesburg, VA

Fiberglass versus Spray Foam-Leesburg, VA

Before After
Fiberglass versus Spray Foam-Leesburg, VA Fiberglass versus Spray Foam-Leesburg, VA

This before photo shows a vertical wall in an attic insulated with fiberglass insulation. This fiberglass allows hot/cold air to travel through it and touch the drywall, thus allowing the heat and/or cold to transfer into the living space.

The after picture shows the fiberglass removed and newly insulated using closed cell spray foam.  This builds a great protective thermal and air barrier and makes the top floor of this home cooler in the summer months.

Mold Treatment- Leesburg, VA

Mold Treatment- Leesburg, VA

Before After
Mold Treatment- Leesburg, VA Mold Treatment- Leesburg, VA

This Leesburg, VA homeowner had mold growing in their vented attic assembly that was causing the family to develop allergies and get sick very often.  Comfenergy discovered this attic mold and treated it with MoldX-2 before air sealing, insulating and providing other services.

These pictures ar eof the mold covered roof joists before and after being treated by Comfenergy with MoldX-2.

Company Awards
Loudoun's Favorite Insulation Company 2019
The results are in from Loudoun Now's Annual Favorites Poll. Comfenergy is the winner for Favorite Insulation Company!... [Read more]
Best of Loudoun - 2019
We won the Best Insulation Company in Loudoun County again this year!!... [Read more]
2018 Superior Service Business of the Year
Comfenergy earned the 2018 Superior Service Business of the Year award from the Loudoun County Chamber of Commerce... [Read more]
More Awards

Dependable Home Insulation & Air Sealing Contractor Serving Leesburg, VA

This testimonial was given by a condo homeowner from a large condo complex project we have been working on.  The...
Happy Customers Surrounding Leesburg, VA
Testimonials
Reviews
Work Requests

Click the icons to see what our customers had to say.

Reviews From Leesburg
Testimonials From Leesburg
The crew was respectful of our home and very diligent.
Testimonial by Joanne T. from Leesburg, VA
Carl was great! Took his time to explain everything. The crew explained everything well, worked very hard...
Testimonial by Philip O. from Leesburg, VA
Outstanding work & communication. I appreciated the opportunity to ask questions at the beginning of...
Testimonial by Jacob P. from Leesburg, VA

Home Insulation Experts Serving Leesburg, VA

Comfenergy is Leesburg's authorized dealer of the nationally renowned Dr. Energy Saver network of the best energy-conservation contractors across the country. We are not just a contractor company, we specialize in helping you understand your home's current energy efficiency, suggest repairs, and we also do the work! Not only do we offer a variety of home energy services, but we also offer replacement windows and door services to keep the outside out and warmth in, and to boost your curb appeal. You'll receive the maximum energy and cost-saving results with the least amount of hassle. Customer satisfaction is our goal, and we take whatever steps necessary to ensure that you are more than happy with our service. At Comfenergy our slogan is "We Fix Uncomfortable Homes!", and we guarantee we will do that. If your energy costs are too high, or there are areas of your home that are too cold in the winter or hot in the summer, contact us today!

Expert Spray Foam Insulation Company

At one point pink fiberglass insulation was the best option for home insulation. However, today spray foam insulation is the much better option. Spray foam insulation has several benefits and beats the traditional fiber-glass product in every way. Spray foam insulation is the top choice for homeowners, contractors, and building scientists (the experts who study home energy performance) for several reasons. Here are the top reasons spray foam insulation should be your number 1 choice:

Advantages of Spray Foam Insulation:

  • Provides both insulation and air sealing
  • Fills gaps and cracks
  • High R-value
  • Speedy installation
  • Spray foam won't shift, settle, or fall out of place

Leesburg’s Trusted Window & Door Replacements

Comfenergy also offers window and door replacements for an even more beautiful and efficient Leesburg home. We install Simonton interior window inserts, window replacements, and door replacements with expert precision. Replacement windows and doors will help to maintain more even temperatures and eliminate drafts and energy loss in your home. New windows and doors not only improve the interior and exterior appearance of your home, but they also can lead to significant energy savings. Call to schedule a free estimate today in Leesburg, VA!

Help Your Home with Attic Insulation

Upgrading your home’s attic insulation is a very effective & popular energy-saving method because there is usually a lot of room for improvement. Most homeowners believe their attic has enough insulation but once we explain how much insulation is actually needed to make your home efficient people understand that they don’t have anywhere near enough. It is common knowledge that hot air rises which is why a properly insulation attic is one of the most important things you can do for your home. By adding attic insulation to your home you are guaranteeing to save money and also have a more comfortable home. Not having a properly insulated attic is equivalent to constantly leaving one of your windows open. Don’t wait any longer to learn more about the attic insulation methods we have available in your area!.

Attic Insulation Services Available in Leesburg:

  • Blown-in Insulation
  • Blown Fiberglass Insulation
  • Radiant Barrier
  • Rigid Foam Insulation

Crawl Space Insulation Experts

Do you need crawl space insulation installed or replaced? If so, you're in the right place! A damp crawl space with falling or sagging insulation usually means the space has a moisture problem. If that is the case our team of experts can provide a vapor barrier to keep moisture out of your crawl space. We can then replace your existing insulation with a better option such as rigid foam or spray foam insulation. If your crawl space is completely missing insulation then your home is most likely cold and drafty. This is because the environment in your crawl space will transfer to other parts of your home, which is why proper crawl space insulation is essential to keeping your home comfortable and your energy bills low. To learn more about crawl space insulation cost, call, or click today!

Complete Insulation Services You Can Trust!

Comfenergy is Northern VA's preferred home insulation and air sealing services company. We have helped many homeowners not only reduce their home energy bills but improve the overall comfort of their homes without patented home insulation solutions.  Did you know that most modern homes do not have adequate insulation? Because of this, your home may feel drafty or uncomfortable throughout the year, mostly in the summer and winter, and this can increase your home energy costs. Proper insulation in your home allows your heating or air conditioning systems to work more efficiently which will save you money. 

We offer a wide variety of home insulation products and services, and each one serves its own unique purpose.  Our most popular form of insulation is spray foam.  Spray foam insulation is extremely versatile and can be used almost anywhere in your home. Spray foam insulation is one of the best ways to lower energy costs, sometimes 30% or more!

Along with spray foam, we use many other different types of insulation as well. Some of our other insulation products include rigid foam, blown-in, cellulose, fiberglass, radiant barrier, and much more.  We understand that insulation is only part of the home energy and comfort equation, so because of this, we can insulate any area of your home.  We insulate spaces such as attics, basements, crawl spaces, walls, floors, garages, and much more.  If your home is uncomfortable or energy bills are too high, contact us today for a FREE home insulation quote!

Home Insulation Services:

Comprehensive Home Energy Audits

Do you think your home is not as energy efficient as it could be? The home energy experts at Comfenergy offer homeowners of Leesburg custom home energy audits.  Before we perform any work in your home, we will take the time to sit with you and discuss what areas of your home are your most problematic, and figure out if you are having common issues.  We till perform our energy audit, and once we have the results, we will go over our findings with you and figure out the next step.  We believe that this approach is the most beneficial for both parties because we can prioritize whatever work needs to be done without wasting your hard-earned money.  If you are interested in a comprehensive home energy audit, contact us today!

Get your FREE, no-obligation services estimate in Leesburg, Virginia, you'll also receive a free copy of "Saving Energy and Money at Home," a great book to use as you begin to create a more comfortable, healthy, and energy-efficient home!

Case Studies From Leesburg
Staying
Attic insulation in your home can get pretty nasty. Over many years it sits there collecting dirt, dust, pollen, bugs, rodent feces, and more. This...
Home
This Leesburg, VA homeowner was remodeling this old home and flipping it. She ran into a few issues with being able to insulate the dwelling...
Comfort/Energy
This Leesburg, VA homeowner had just moved into this home from a warmer climate. They were interested in generally making this older home more energy...
Press Releases From Leesburg
March 4th, 2016

Barbara Comstock, Republican Member of US Congress from Virginia's 10th District ...
March 4th, 2016 Barbara Comstock, Republican Member of US Congress from Virginia's 10th District visits Comfenergy in Sterling to show interest and learn what she could do to support this growing concern.... [Read more]
Work Requests From Leesburg, VA
Project Location: Leesburg, VA
I'd like an audit of my home as we seem to have a hard time keep it cool on hot days, and I believe we are wasting energy (money) trying to do so.
Project Location: Leesburg, VA
I am looking for someone to spray foam my wine cellar and possibly my basement if the price is right.
Project Location: Leesburg, VA
Looking most likely for attic sealing and some spray insulation. My upper-level HVAC is working very hard to keep up and on hot days it's not keeping up. You all did work for me previously in my old home, so I'm looking for something similar. Thank you!
Project Location: Leesburg, VA
Want to improve cooling and heating in the house by removing drop insulation in our attic and installing spray foam.
Project Location: Leesburg, VA
Our second floor is extremely hot. It's been at least 10+ years since this has been addressed. I've also had to do work in the attic and I know moving insulation around degrades the effectiveness
Project Location: Leesburg, VA
Top level of our house is many degrees hotter than the lower 2 levels.
Project Location: Leesburg, VA
Hoping to get a free estimate for adding/replacing insulation/ventilation on my attic. Thanks!
Project Location: Leesburg, VA
Add attic insulation to bring current R30 up to code.
Project Location: Leesburg, VA
Need to better insulate 4th level finished living area. Too hot in summer.
Project Location: Leesburg, VA
Would like to get a quote for crawlspace encapsulation
Project Location: Leesburg, VA
Would like a quote for soundproofing foam
Project Location: Leesburg, VA
Recently had roof replaced due to leaks. Looking to have attic insulation inspected for water absorption, removed and replaced where necessary.
Project Location: Leesburg, VA
Looking for a quote on adding additional insulation in an attic
Project Location: Leesburg, VA
I would like an energy audit to determine the efficiency of my windows and to see what can be done to reduce my electric bill. An overall consult to improve my home's energy efficiency.
Project Location: Leesburg, VA
Home inspection identified very old insulation in the attic with low R value. Also have prior evidence of animals and pests (mice, birds, bats) so would like to see about disinfecting and replacing the current insulation
Project Location: Leesburg, VA
The insulation in my attic is only about 8 inches deep.
Project Location: Leesburg, VA
I'd like a home energy assessment.
Project Location: Leesburg, VA
One area of my house on the 2nd fl. (master bedroom) is significantly colder during winter and warmer during the summer then the rest of the house.
Project Location: Leesburg, VA
We have just had three skylights, put into our bedroom and our room is constantly cold. We need insulation to keep the room warm in the winter and cool in the summer, possibly shades or something for the actual skylights as well.
Project Location: Leesburg, VA
Hello - Looking to have a home energy audit done. Thanks!
Serving the following Leesburg, VA zip codes
20175, 20176, 20177, 20178

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