Contact Us For
A Free Estimate!
Reviews From Annandale
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

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

Spray Foam Insulation & Home Energy Audit Specialist in Annandale

Crew was friendly, efficient, and worked hard in a tough situation.  ...
Happy Customers Surrounding Annandale, VA
Work Requests

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

Home Insulation Experts Serving Annandale, VA

Comfenergy is Annandale'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

Annandale’s Trusted Window & Door Replacements

Comfenergy also offers window and door replacements for an even more beautiful and efficient Annandale 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 Annandale, 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 Annandale:

  • 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 Annandale 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 Annandale, 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 Annandale
A referral from Eric Glowacki at Twin Tech LLC HVAC led to this Annandale, VA homeowner reaching out to Comfenergy. He was experiencing sweating duct...
This Annandale, VA home had a beautiful sun room addition off the back of the house. However, the homeowner noticed it was always cold in the winter...
This Annandale, VA homeowner was looking to turn their attic into a great storage space, and yet not be penalized for poor energy efficiency.
Work Requests From Annandale, VA
Project Location: Annandale, VA
Attic insulation system and air sealing
Project Location: Annandale, VA
AC unit running constantly, but won't cool the house. HVAC team who came a serviced it 2 weeks ago said it's fine, so we'd like a home assessment to see where the heat may be coming from poor installation or windows.
Project Location: Annandale, VA
Upstairs much warmer than downstairs
Project Location: Annandale, VA
I'm looking to insulate the ceiling of my garage that is over our bedrooms. This would also include 2 sides of the garage walls. Looking for a quote and timeline.
Project Location: Annandale, VA
I would like an estimate to remove the old batt insulation from my crawl space and encapsulate it.
Project Location: Annandale, VA
Looking to fix insulation issues within the house between blown insulation and wall insulation issues.
Project Location: Annandale, VA
Cold house that needs insulation, especially in the attic.
Project Location: Annandale, VA
Have a home built in 1964 with no insulation in most exterior walls. I don't think attic insulation has been redone since 1964 and any extra insulation will help keep the house more comfortable
Project Location: Annandale, VA
We would like to have spray foam insulation put in our attic. Also need door replacement.
Project Location: Annandale, VA
Need remove degraded old R? Installation and install new R38
Project Location: Annandale, VA
My master bedroom and master bathroom, because of their location, are more cold that other rooms in the house.
Project Location: Annandale, VA
Attic insulation
Project Location: Annandale, VA
Attic and Crawspace insulation replacement and disinfection, pest concerned.
Project Location: Annandale, VA
Energy loss and overheated house in attic and in part of m house above ceilings with no attic.
Project Location: Annandale, VA
Just bought a house that needs insulation
Project Location: Annandale, VA
It seems the main floor remains cooler than the upper floor when the heat is on. The opposite when the air is on. I'm sure there are drafts and such in an old home.
Project Location: Annandale, VA
1950's home with varying levels of insulation and a vented crawl space with insulation problems . Need an energy audit to determine cost effective solution
Project Location: Annandale, VA
Need 4 walls filled
Project Location: Annandale, VA
Low flow leak has reappeared after many dry years. Only during long rains seeps in along the base of the wall under the drywall (that has a bottom cap)
Project Location: Annandale, VA
We would like to know how well our home is insulated & if we're wasting energy

our service area