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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

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

Before and After Pictures from Ashburn
Frozen Pipes in Ashburn, VA

Frozen Pipes in Ashburn, VA

Before After
Frozen Pipes in Ashburn, VA 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!!!  

Increasing R-Value

Increasing R-Value

Before After
Increasing R-Value Increasing R-Value

This home was having comfort issues on their top floors in the summer. Our solution was to increase the R-value by installing cellulose insulation and air sealing their attic.

Ashburn VA Cantilever gets spray foam to help insulate

Ashburn VA Cantilever gets spray foam to help insulate

Before After
Ashburn VA Cantilever gets spray foam to help insulate Ashburn VA Cantilever gets spray foam to help insulate

This Ashburn VA home had an uninsulated cantilever.  The external temperatures were impacting the condition and comfort in the room above.  We removed the base board of the cantilever on the outside of the house and filled the cavities with spray foam to insulate and air seal.  This will help to keep outside temperatures out and inside feeling the way the homeowner would like it to.  

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

Home Insulation, Energy Audit & Window Replacement Contractor Serving Ashburn

I contacted Justin because our first floor master bedroom was extremely hot during the summer and very cold in the...
Happy Customers Surrounding Ashburn, VA
Work Requests

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Reviews From Ashburn
Testimonials From Ashburn
I appreciated the time spent showing me the work and explaining what was going to be done.
Testimonial by Andrew A. from Ashburn, VA
Salesperson went over everything crew would do.
Testimonial by David O. from Ashburn, VA
Mike was very thorough in explanation of what our needs were.
Testimonial by Jenn S. from Ashburn, VA

Home Insulation Experts Serving Ashburn, VA

Comfenergy is Ashburn'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

Ashburn’s Trusted Window & Door Replacements

Comfenergy also offers window and door replacements for an even more beautiful and efficient Ashburn 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 Ashburn, 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 Ashburn:

  • 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 Ashburn 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 Ashburn, 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 Ashburn
In many cases, the building codes that need to be met for a home to pass inspection do not always make it so the home operates efficiently and do not...
A homeowner in Ashburn, VA was aggravated with having a hot and humid upper level every summer. The master bedroom was especially an area of concern...
This Ashburn, VA homeowner was complaining of cold air drafts throughout the entire back wall of their home, more specifically in the kitchen. They...
Job Stories From Ashburn, VA
Ashburn VA home benefits from spray foam

This Ashburn VA homeowner was experiencing comfort issues in the living space of the home.  Their HVAC system was working harder than they thought it should be causing their utility bills to be higher than they would like.  There were rooms in the home with various temperatures one another and depending on the time of year the homeowner was either too hot or too cold.  Our sales professional Pedro did a full home energy audit and identified several options for solving these problems.  Pedro took detailed notes and set out a plan of action for our production team to execute.  Removing the external cover of a cantilever on the side of the house and administering spray foam to both insulate and seal the space inside would help to keep external air and temperatures from impacting the room it was connected to.  In the attic of the home, we removed some existing Tyvek panels and old batt insulation that was not working the way it was intended and replaced it with more spray foam.  Other areas of the attic were air sealed to keep the conditioned air made by the HVAC system from being able to escape into the attic and out of the home. Once the spray foam and air seal were complete the attic was turned into a conditioned space with would no longer allow the living space of the home to have such fluctuations in temperature from room to room.  The result is a more comfortable home with reduced energy costs.  

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Work Requests From Ashburn, VA
Project Location: Ashburn, VA
Seeking quote for attic insulation
Project Location: Ashburn, VA
My wife and I just bought a historic home in Rectortown and we'd like to get a price for getting the basement insulated properly using spray foam.
Project Location: Ashburn, VA
High humidity in the summer. Higher than average gas usage.
Project Location: Ashburn, VA
Unstable temps in different rooms. upstairs masterbedroom and closet stay cold in winter while other parts of the house get too hot in the summer.
Project Location: Ashburn, VA
Need insulation in garage ceiling and porch ceiling
Project Location: Ashburn, VA
Attic insulation
Project Location: Ashburn, VA
Need insulation installed in the garage and basement. Attic may also need to be topped up
Project Location: Ashburn, VA
We have damaged insulation in our basement from a small fire. The insurance estimator recommended upgrading from fiberglass to foam since we use the basement as our gym.
Project Location: Ashburn, VA
I have a bedroom above our garage that is hot in the summer and cold in the winter. I believe there is little or no insulation above the garage.
Project Location: Ashburn, VA
We need maximum sound proofing. We live in the Dulles flight path.
Project Location: Ashburn, VA
New air conditioning units and still house doesn't stay cool.
Project Location: Ashburn, VA
Request immediate assistance for water damage and find possible air flow problems; recommended by ME Flow Hvac. Thank you.
Project Location: Ashburn, VA
Correct the cardboard baffles and correct the insulation as needed.
Project Location: Ashburn, VA
We have a small attic space that needs more insulation. Could you please give us an estimate? Thanks for your help.
Project Location: Ashburn, VA
Need estimate on insulating garage/room above garage.
Project Location: Ashburn, VA
Our top floor lacks proper insulation in two rooms, causing high temps in the summer and low temps in the winter. Looking to inject some spray foam insulation to resolve.
Project Location: Ashburn, VA
Attic inspection needs for piece of mind.
Project Location: Ashburn, VA
Attic insulation and air sealing
Project Location: Ashburn, VA
One of your reps came out to us in September 2021. At the time we were resolving condensation issues with the builder of our townhouse. We'd like to revisit having someone come out again and discuss some strategies to close off any unwanted exterior air from coming inside and help make our home more energy efficient. Our HVAC system cannot keep up with the warm temperatures in the summer and we are not able to replace any components without redoing our duct work. Our best option is to provide insulation, close off an air gaps, and add reflective tint/layers to the windows. We are looking for someone to develop a plan to achieve these goals and perform this work.
Project Location: Ashburn, VA
I own a music school and I need the rooms quieter. I am looking to have foam blown into the walls of the 5 existing studios and I need an estimate as soon as possible. Each room is 10x10 or 12x10. Thank you! Laura
Serving the following Ashburn, VA zip codes
20146, 20147, 20148, 20149

our service area