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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
Weatherization

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

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.

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.

CleanSpace Encapsulation System in Herndon, VA

CleanSpace Encapsulation System in Herndon, VA

Before After
CleanSpace Encapsulation System in Herndon, VA CleanSpace Encapsulation System in Herndon, VA

A homeowner in Herndon, VA wanted to reduce the chances of mold and humidity in their crawl space area. This crawl space was vented, like most homes in our area, and the vents let warm humid air in which is cooled by the subterranean crawl space. This causes relative humidity to go way up and condensation to form all over the crawl space surfaces including floor joists and ducts. Then mold can grow, wood will rot, and musty odors can appear. To address this, Comfenergy sealed up the vents and a dimpled plastic drainage matting is installed on the floor to create a thermal break. A heavy duty liner, CleanSpace, is installed across the floor over the matting and up the walls. Finally closed cell spray foam is installed on the walls to the top of the rim joist. 

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

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 Experts 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!

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

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 Herndon:

  • 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:

Basement Waterproofing Services

Is a wet basement driving you crazy, causing damage, or lowering your home's value? Our team of expert waterproofers can help. We offer a wide range of quality waterproofing solutions like:

  • Perimeter drainage systems
  • Doorway drainage systems
  • Sump pumps
  • Waterproof wall and floor products
  • Wall and floor crack repairs
  • Replacement windows
  • Water heater flood protection
  • Frozen discharge line prevention

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
Attic
This Herndon, VA homeowner had rodent issues in their attic. After a conversation with them, they also mentioned wanting to make the house more...
Blown-in
This Herndon, VA homeowner was looking to make the top floor of their home more comfortable and less drafty, yet not lose any attic storage area...
Herndon,
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...
Work Requests From Herndon, VA
Vicinity of Quincy Adams Dr in Herndon
Would like estimate to remove and replace insulation in attic, seal gaps, install cellulose
Vicinity of Quincy Adams Drive in Herndon
Need new insulation in attic w/ removal and sealing.
Vicinity of Herndon Parkway in Herndon
Need 1-2 rooms soundproofed for music practice
Vicinity of Meadow Hall Ct in Herndon
Would like to have the attic above our garage and bedrooms evaluated
Vicinity of Kingstream Dr in Herndon
We have a very cold den which has a high ceiling. Not sure enough heat gets to this area or there is just no insulation.
Vicinity of Chiswell Pl in Herndon
Seeking Open Cell spray foam insulation in dining room exterior walls. All drywall will be removed for easy access.
Vicinity of Curved Iron Rd in Herndon
I need to make my room comfortable as now it is cold in winter and very hot in summer.it is on the garage.
Vicinity of Autumn Hill Ln in Herndon
We have cantilevered living area that needs to be insulated. The floor space on the cantilevered area is a lot colder than the floor on top of the basement or crawl space. The pipe that goes to the kitchen sink freezes when it is really cold. So we would like to insulate the area with spray foam and seal the airways into the house.
Vicinity of Heather Way in Herndon
Would like an estimate for attic insulation services. Thank you.
Vicinity of Coat Ridge in Herndon
Exterior walls seem to be lacking insulation
Vicinity of in Herndon
My attic insulation has not been updated.
Vicinity of Cassia St in Herndon
Home is drafty and gas bills exceeded neighbors.
Vicinity of Logan Wood Dr in Herndon
We are paying double the gas bills for heating up our home winter compare to some neighbors and some of our rooms are not cozy even after increasing the heat. I would like to have an energy audit for the home and see what improvements to make in the right order.
Vicinity of Kingsvale Circle in Herndon
Cost estimate for foam insulation of a garage attic 21'x22'.
Vicinity of Spofford Road in Herndon
I would like a consultation on how to fix air leaking from my windows.
Vicinity of Grant St in Herndon
Extremely hot upstairs, extremely cool downstairs
Vicinity of Timber Wood Wy in Herndon
Front bedrooms above garage are hot in summer and cold in winter. Probably need another air handler but can't afford one. Want to know what we can do (add insulation etc) to improve it
Vicinity of James Madison Cir in Herndon
Potential wasted energy A/C runs a lot and can't maintain 72 degrees on hotter days
Vicinity of Meadow Hall Dr in Herndon
High energy cost
Vicinity of Timber Wood Way in Herndon
We are looking to re-insulate our attic. We bought the house and I don't think the previous owners did any upkeep at all.
Serving the following Herndon, VA zip codes
20170, 20171, 20172, 20192, 22095

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