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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 & 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
The "mixer box" is the section of an HVAC duct system where it changes directions or splits off into more ducts. This duct joint area is often the...
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...
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
Would like to receive a quote for insulation in attic and discuss options for room above garage
Project Location: Ashburn, VA
Need quote for Attic inspection and Insulation. the Insulation seems not adequate
Project Location: Ashburn, VA
It's cold in the Kitchen/main floor during winters.
Project Location: Ashburn, VA
Just want to see how energy efficient my home is.
Project Location: Ashburn, VA
We are interested in soundproofing our home office and would like to find out how much that would cost.
Project Location: Ashburn, VA
Looking for a quote to replace two exterior doors with sliding doors.
Project Location: Ashburn, VA
Overall energy audit and recommendations
Project Location: Ashburn, VA
We need insulation added in the attic above a bedroom.
Project Location: Ashburn, VA
Home energy audit, have very high humidity on 2nd floor of home.
Project Location: Ashburn, VA
Would like to sealed attic and change the existing insulation
Project Location: Ashburn, VA
Would first like a home audit. Considering attic insulation.
Project Location: Ashburn, VA
Good morning. We are interested in an assessment of the efficiency of our home with regard to heating and cooling - more specifically any of our windows / entrances that may be leaky causing inefficient cooling / heating. We live in a middle unit of a townhome block (ours is a 4 story townhome). We are also open to looking at other aspects that may help. Right now our top floor gets fairly warm in comparison to other levels of our home (which I believe is common). We have a service contract with a HVAC company who helps with the dampers and set up of the unit. We have also noticed some rooms / windows letting in air.
Project Location: Ashburn, VA
We'd like our insulation topped up to help with the heat in our attic.
Project Location: Ashburn, VA
Recently moved to the residence. Would like an evaluation on insulation and efficiency of our energy. Bedroom over the garage is significantly warmer.
Project Location: Ashburn, VA
Spray foam insulation for attic
Project Location: Ashburn, VA
Upstairs 3 levels corner rooms super hot in summer and cooler in winter
Project Location: Ashburn, VA
Attic insulation replacement
Project Location: Ashburn, VA
We need more insulation in the attic.
Project Location: Ashburn, VA
I'd be interested in speaking to someone to get an energy audit done, with particular attention placed to our attic/roof spaces. Thanks!
Project Location: Ashburn, VA
I use my garage as a home gym and in the winter it can get very cold
Serving the following Ashburn, VA zip codes
20146, 20147, 20148, 20149

our service area