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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

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.

Spray Foam Garage Ceiling-Ashburn, VA

Spray Foam Garage Ceiling-Ashburn, VA

Before After
Spray Foam Garage Ceiling-Ashburn, VA 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.

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
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...
This Ashburn, VA homeowner was complaining about a drafty kitchen on the back of their home during the winter. They wanted this issue resolved to be...
Work Requests From Ashburn, VA
Project Location: Ashburn, VA
Want to get a quote for my utility closet where my HAVC unit and water heater are located.
Project Location: Ashburn, VA
Room above garage is extremely hot in summer / cold in winter. need garage room insulated. also room above front porch may have same issue with the roof of the porch not insulated properly.
Project Location: Ashburn, VA
I would like to get your thought on a better sealing and insulation solution for our single family home, especially the attic. It is a three story, detached single-family home built in approx 2003-2004. We have standard builder-grade (i.e., pink insulation). I am wondering if cellulose insultation with some limited foam might provide better sealing and insulation. Thanks.
Project Location: Ashburn, VA
We have a room in the house that is very extreme for cold/hot temperatures and we would like to try to insulate the attic better and take a look at the duct system to improve comfort.
Project Location: Ashburn, VA
Bathroom exhaust duct is leaking water due to condensation from adjacent A/C ducts. I'd like to get a quote to install insulation to avoid condensation.
Project Location: Ashburn, VA
Home Energy Audit
Project Location: Ashburn, VA
Just bought our house. Want to make sure it is as efficient as possible.
Project Location: Ashburn, VA
We have a basement ceiling right above our Sanctuary which is our kids room. It is a concrete ceiling and would like to have sound proofing sprayed to help keep sound downstairs. Does the spray come in black?
Project Location: Ashburn, VA
I;ve been in my home for 18 years and have never insulated the attic. We've done lots of other work, windows, insulation, etc...
Project Location: Ashburn, VA
New attic insulation, air sealing evaluation, possible garage insulation
Project Location: Ashburn, VA
Two projects: I'd like to see about some radiant reflective tech that can be put into the attic to reduce the heat and better insulate. I have some insulation there now but I like the SuperAttic system you show. I have a second project which requires to insulate a little 10x10 work out room in the basement .
Project Location: Ashburn, VA
Our bedroom above the garage is cold in winter and hot in the summer. We would like for it to hold temperature along with the rest of the house.
Project Location: Ashburn, VA
The third level of our house gets very warm in the summer compared to the rest of the house. I was hoping that improving the attic insulation would help cool the house and reduce our costs.
Project Location: Ashburn, VA
2 system house. Heat pump for upstair unit. 3 of the rooms upstair hot in summer and freezing in winter.
Project Location: Ashburn, VA
I have neighbors who have loud cards and play loud music through all hours. I would like to find out the feasibility of sound proofing master bedroom.
Project Location: Ashburn, VA
20x10' Drop Ceiling needing sound proofing to block vibration noise coming from ceiling.
Project Location: Ashburn, VA
Need to soundproof my living room
Project Location: Ashburn, VA
I need an energy audit/inspection. My windows leak cold. My master bedroom is 4-5 degrees Fahrenheit colder than the rest of the house during the Winter, and it is about the same amount warmer in the Summer. My pantry gets warm enough in the Summer that we don't leave chocolate bars in it. I'm not sure how much insulation is in my walls - I can be in the master bedroom on the second floor and hear my next door neighbor roll his trash can down his driveway with all windows and doors closed.
Project Location: Ashburn, VA
House is about 18 years old. Noticing some dark spots on ceilings that may be "ghosting" due to poor attic insulation. Would like an inspection and estimate to address
Project Location: Ashburn, VA
Please contact me via email or text. Do not call. I do not answer unknown numbers. Parts of the house are colder than others, some drafty windows and uncertain whether the house is sufficiently insulated in the walls.
Serving the following Ashburn, VA zip codes
20146, 20147, 20148, 20149

our service area