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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

Before and After Pictures from Herndon
Decreased cold drafts for homeowner in Herndon, VA

Decreased cold drafts for homeowner in Herndon, VA

Before After
Decreased cold drafts for homeowner in Herndon, VA Decreased cold drafts for homeowner in Herndon, VA

This home in Herndon, VA was experiencing cold drafts this winter and found it expensive to keep their home warm.  In the attic there was very little insulation and had a low R value.  We used our TruSoft Blown-in Insulation resulting in a less drafty and more comfortable home.

Crawl Space Insulation in Herndon, VA

Crawl Space Insulation in Herndon, VA

Before After
Crawl Space Insulation in Herndon, VA Crawl Space Insulation in Herndon, VA

The homeowner in Herndon, VA called because his insulation in the crawl space was falling down.  First, we removed the nasty batt insulation that was falling down and disposed of it all properly.  Then, we installed SilverGlo foam board insulation around the perimeter and installed CleanSpace anti-microbial vapor barrier on the floors. The CleanSpace is held in place with tape in some sections, and foam spray in others.

First, we removed the nasty batt insulation that was falling down and disposed of it all properly.  Then, we installed SilverGlo foam board insulation around the perimeter and installed CleanSpace anti-microbial vapor barrier on the floors. The CleanSpace is held in place with tape in some sections, and foam spray in others.

The result is now the floors above the crawl space are nice and cozy warm in the Winter.  During the Summer months, there will be less heat and humidity under the floors. Thus, less mold/mildew odors to penetrate into this Herndon home's air.  Thus, making the  indoor air healthier for these Herndon residents.


New Construction Spray Foam-Herndon, VA

New Construction Spray Foam-Herndon, VA

Before After
New Construction Spray Foam-Herndon, VA New Construction Spray Foam-Herndon, VA

This wise homeowner in Herndon, VA chose to use closed cell spray foam insulation in the walls of their new home. This is a wise investment for comfort and efficiency.  Closed cell spray foam not only insulates better than fiberglass batts, it creates a great vapor barrier on the exterior walls.

Company Awards
Comfenergy is awarded as the Best Insulation Company in Loudoun County for 2018 by the readers of the Loudoun Times... [Read more]
Comfenergy was awarded as the #3 Dr. Energy Saver dealer for total sales in North America during the 2017 Contractor... [Read more]
Comfenergy is chosen as one of the top insulation companies by the readers of EBSCO Best Pick Reports for Fairfax,... [Read more]
More Awards

Herndon's Expert Spray Foam, Attic & Blown Insulation Contractor

I thoroughly reviewed your web site, looked at the various videos and  understood what Dr. Energy Saver could do for...
Happy Customers Surrounding Herndon, VA
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Reviews From Herndon
Testimonials From Herndon
The crew was professional and friendly. They worked well and efficiently and took care to explain all steps and clean up after.
Testimonial by Andrew S. from Herndon, VA

Home Insulation & Energy Audit Contractor Serving Herndon, VA

Comfenergy is Herndon'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! You'll receive the maximum energy and cost-saving results with 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 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!

Home Insulation Services You Can Trust!

Comfenergy is Nova'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:

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 Include:

  • Provides both insulation and air sealing; air sealing is excellent because the foam expands to fill gaps and cracks.
  • High R-value -about R-7 per in. depending on the formulation.
  • Speedy installation. Foaming can be done in a fraction of the time it takes to cut, fit, and seal rigid board insulation.
  • Once cured, spray foam insulation stays in place; it won't shift, settle, or fall out of place.

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 technique available in Herndon

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

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 Herndon 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 your 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 Herndon, 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 Herndon
This Herndon, VA homeowner was having trouble heating and cooling this wonderful addition they built a few years ago. Upon a thermal camera...
This Herndon, VA home was complaining of cold floors in the Winter, plus musty odors in the Summer. The crawl space was open to the outside of the...
This Herndon, VA homeowner had sevral areas of their home that were drafty and cold. Basically, making it not livable during the colder days in the...
Work Requests From Herndon, VA
Merricourt Lane in Herndon
High electric bills.. attic insulation
Forty Oaks in Herndon
House leaks heat like crazy, inadequate insulation
Cutternill Ct in Herndon
Cold drafty house.
Curie Court in Herndon
I wanted to find out about options/pricing to upgrade to energy efficient windows
Woodland Pond Lane in Herndon
I had insulation redone by you last year (1st floor exterior wall and attic). However, I've found that the first floor is still very cold in the winter and it appears some spots on the back wall (all floors) are not insulated well (mainly in the corners of the room. I'm not sure if that is one of the causes or not, but it would seem it would be with the temperature delta I see in those spots (infrared tester). Looking for another assessment and possibly some work to insulate those spots (and anything else that may be discovered).
Whirlaway Circle in Herndon
Duct leakage;cold rooms;insulation
Curved Iron Road in Herndon
The main level on the north side of my house is very cold. Two years ago, I added a 4-foot cantilever addition to the kitchen area on that side of the house. The contractor didn't do a good job insulating it, and it is very drafty. The north side also has a bay window and a sliding glass door, so lots of exposed glass. I had a contractor do a spray foam insulation under the cantilever, which helped improve the floor temperature in the addition, but the walls are still cold and drafty. I'd like to talk about options for adding insulation on that side of the house. Perhaps dense-pack cellulose? The exterior has HardiPlank siding.
in Herndon
2 rooms ....1 is a mostly glass conference room...the other is an it working room that needs to muffle outside sound
Kinross Circle in Herndon
We need an estimate for insulation in our attic. Thanks,.
Dogwood Court in Herndon
Would like a free quote and assesment of attic insulation
Delevan Dr in Herndon
Crawl and attic space insulation needs.
Mother Well Court in Herndon
Good Afternoon, Super concerned about my garage area which is directly below the master bedroom. Hot in the summer and cold in the winter, I don't believe it is adequately insulated or able to stop the cold/hot air from invading the upper level bedroom. Thank you, Dean
Pellow Circle Trail in Herndon
Looking for an estimate on Aeroseal and Cleaning.
Cuttermill Ct in Herndon
2nd floor way hotter than the 1st.
Hughsmith Ct. in Herndon
We have a room above our garage which is very hot in the summer and very cold in the winter, mainly (we think) due to insufficient insulation. We have about 10" of old insulation in our attic and would like to upgrade all of it, including over our garage.
West Ox Road in Herndon
New house need insulation
Merlins Lane in Herndon
Need a quote to reinstall insulation and water barrier in the crawlspace of our home.
Stanton Place in Herndon
Hello-- we live in a 3-story townhouse, with a garage on the ground floor. Adjacent to the garage there is one room of finished space also on the ground floor, and that room is always freezing. We're interested in someone coming out to look it over and give us an estimate as to what would be required to adequately insulate that space. Thank you.
Builders Court in Herndon
Looking for estimate on insulation Referred by word of mouth. Appointment set
Astoria Circle in Herndon
Referred by Home Advisor. Needs estimate on fire suppression insulation for 172 garages at an apartment complex Appointment made.
Serving the following Herndon, VA zip codes
20170, 20171, 20172, 20192, 22095

our service area