Contact Us For
A Free Estimate!
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 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
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]
2018 Best of Loudoun Award
Loudoun Times Mirror's "2018 Best of Loudoun" award... [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
Work Requests

Click the icons to see what our customers had to say.

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 Virginia'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
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
in Herndon
My attic insulation has not been updated.
Cassia St in Herndon
Home is drafty and gas bills exceeded neighbors.
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.
Kingsvale Circle in Herndon
Cost estimate for foam insulation of a garage attic 21'x22'.
Spofford Road in Herndon
I would like a consultation on how to fix air leaking from my windows.
Grant St in Herndon
Extremely hot upstairs, extremely cool downstairs
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
James Madison Cir in Herndon
Potential wasted energy A/C runs a lot and can't maintain 72 degrees on hotter days
Meadow Hall Dr in Herndon
High energy cost
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.
I would like an estimate to insulate a garage wall between the house and garage that currently has some condensation due to a duct run behind it. I would also like recommendations for the attic (which has some blown in insulation) and a small crawl space where the batt insulation is falling in places.
Taji Ct. in Herndon
Attic foam spray insulation
Rock Ridge Rd in Herndon
I currently have a single-stage 3.5 ton unit in our home. It works well, but the upstairs is considerably warmer than downstairs (in the summer). We are working to get our attic fan replaced which will help alleviate some of the issue, however we have been told that because the way our ductwork is designed and installed we would not benefit from a multi-stage unit when we do replace. I'm interested on seeing if our supply duct work can be reconfigured to better distribute the air evenly across both floors; and if this is something that you can do. Please contact me by email. Thank you. Keith
Sugarland Valley Dr in Herndon
Attic temperature in Summer
Sugar Maple Drive in Herndon
I am looking to get a quote for installation of spray foam insulation in our house at 12213 Sugar Maple Drive, Herndon VA. We purchased this house last year and after living in it through one summer and winter have decided we need to remedy insufficient insulation in the attic. The house is a 1980's house that currently has inadequate blown cellulous on all flat-ceiling surfaces and also has batt insulation above vaulted ceilings in the master suite. We will obviously need this removed in addition to the new insulation being sprayed on the attic roof deck. Please feel free to give me a call at 334-740-9125 so we can line up a time for your company to visit and give us a quote. Thanks! Brad Gilomen
Acorn Hunt Pl in Herndon
Want my attic insulation checked out
Reign Ct in Herndon
Losing cool air upstairs...
Farmbell Court in Herndon
I'm looking for an estimate for adding insulation to the attic of our home, and if possible, inspecting and repairing the attic fan.
Herman Ct in Herndon
Attic Insulation Costs
Cedar Glen Ln in Herndon
I'd like to know the estimate for insulating the attic of my house
Serving the following Herndon, VA zip codes
20170, 20171, 20172, 20192, 22095

our service area